Phone
Instant Phone Lookup

Enter a phone number, area code, or city and state.

301 Area Code

About Area Code 301

State: Maryland
Major City: Germantown
Timezone: Eastern (10:35am)
Short URL: allareacodes.com/301
Download: Download this data

Area Code 301 Map

  • Aspen Hill, MD
  • Bethesda, MD
  • Bowie, MD
  • Chillum, MD
  • Clinton, MD
  • College Park, MD
  • Cumberland, MD
  • Fairland, MD
  • Fort Washington, MD
  • Frederick, MD
  • Gaithersburg, MD
  • Germantown, MD
  • Greenbelt, MD
  • Hagerstown, MD
  • Landover, MD
  • Montgomery Village, MD
  • North Bethesda, MD
  • North Laurel, MD
  • North Potomac, MD
  • Olney, MD
  • Oxon Hill-glassmanor, MD
  • Potomac, MD
  • Rockville, MD
  • Silver Spring, MD
  • South Laurel, MD
  • St. Charles, MD
  • Suitland, MD
  • Waldorf, MD
  • Wheaton-glenmont, MD
  • White Oak, MD

More About Area Code 301

Area code 301 is one of the original 86 area codes created by AT&T and the Bell System in 1947. It originally served the entire state of Maryland. In 1997, area code 240 was created as an overlay to area code 301. Currently, the largest city it serves is Germantown, MD, and it overlaps coverage areas with area codes 227 and 240.

Overview of Active Prefixes

Assigned to Carrier

Usage

Carriers

Active Phone Number Prefixes

Prefix
Usage
Primary City
Carrier
Introduced
Landline
Indian Head
Bandwidth.com Clec
Introduced 02/24/2011
Wireless
Chevy Chase
New Cingular Wireless PCS - DC
Introduced 12/19/2008
Landline
Fort Washington
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 04/15/1996
Landline
Edgewater
Verizon Maryland
Introduced 07/06/1997
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Wireless
Greenbelt
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 07/06/1997
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Bowie
Verizon Maryland
Introduced 01/10/1996
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 07/04/1995
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 09/11/1994
Landline
Bethesda
Cavalier Telephone Mid-atlantic
Introduced 10/11/1997
Landline
Williamsport
Verizon Maryland
Introduced 02/04/1994
Wireless
Chevy Chase
Usa Mobility Wireless
Introduced 04/15/1996
Landline
Glenn Dale
Teleport Communications America - DC
Introduced 05/21/2009
Landline
Hyattsville
Verizon Maryland
Introduced 07/01/1996
Landline
Glen Echo
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 07/06/1997
Landline
Glen Echo
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Sandy Spring
Mci Worldcom Communications
Introduced 01/11/1997
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 04/01/1997
Landline
Fort Washington
Verizon Maryland
Introduced 01/11/1997
Landline
Clinton
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 04/01/1997
Landline
Temple Hills
Verizon Maryland
Introduced 02/04/1994
Wireless
Hyattsville
Verizon Maryland
Introduced 02/11/1995
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Highfield
Verizon Maryland
Introduced 01/10/1996
Landline
Brandywine
Mcimetro Access Transmission Services LLC
Introduced 01/11/1997
Landline
Bethesda
Verizon Maryland
Introduced 07/20/2006
Landline
Rockville
Telcove Operations
Introduced 01/11/1997
Landline
Bittinger
Verizon Maryland
Introduced 02/04/1994
Landline
Nanjemoy
Verizon Maryland
Introduced 02/04/1994
Wireless
Leonardtown
New Cingular Wireless PCS - DC
Introduced 01/10/1996
Landline
Fort Washington
Verizon Maryland
Introduced 02/04/1994
Landline
Bowie
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Wireless
Gaithersburg
Sprint Spectrum L.p.
Introduced 01/10/1996
Landline
Damascus
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 01/10/1996
Landline
Rockville
Verizon Maryland
Introduced 01/11/1997
Landline
Laurel
Mci Worldcom Communications
Introduced 01/11/1997
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 10/11/1997
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Issue
Verizon Maryland
Introduced 02/04/1994
Landline
Ashton
Verizon Maryland
Introduced 07/06/1997
Landline
Glenn Dale
Verizon Maryland
Introduced 02/04/1994
Landline
Bowie
Verizon Maryland
Introduced 02/04/1994
Landline
Glen Echo
Verizon Maryland
Introduced 04/01/1997
Landline
Mount Savage
Verizon Maryland
Introduced 02/04/1994
Landline
Fort Washington
Verizon Maryland
Introduced 01/11/1997
Wireless
Waldorf
New Cingular Wireless PCS - DC
Introduced 01/11/1997
Wireless
Greenbelt
Sprint Spectrum L.p.
Introduced 10/04/2011
Wireless
Cumberland
Uscoc Of Cumberland DBA United States Cel Md
Introduced 07/06/1997
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Thurmont
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Silver Spring
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Hughesville
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/11/1995
Landline
Hyattsville
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Rainier
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 10/11/1997
Landline
Oxon Hill
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Silver Spring
Verizon Maryland
Introduced 07/04/1995
Landline
Bryans Road
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Mci Worldcom Communications
Introduced 01/11/1997
Wireless
Silver Spring
Verizon Maryland
Introduced 07/04/1995
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Rockville
Mci Worldcom Communications
Introduced 01/10/1996
Landline
College Park
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Mechanicsville
Verizon Maryland
Introduced 07/06/1997
Landline
Mount Rainier
Mci Worldcom Communications
Introduced 01/11/1997
Landline
Fort Washington
Verizon Maryland
Introduced 02/04/1994
Landline
Myersville
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Mci Worldcom Communications
Introduced 07/04/1995
Landline
Fort Washington
Verizon Maryland
Introduced 02/04/1994
Landline
Upper Marlboro
Mcimetro Access Transmission Services LLC
Introduced 04/01/1997
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
Cellco Partnership DBA Verizon Wireless
Introduced 03/30/2007
Landline
Hagerstown
Sprint Spectrum L.p.
Introduced 10/05/2004
Wireless
Greenbelt
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Frederick
Comcast Phone Of Northern Maryland
Introduced 03/06/2007
Wireless
Frederick
Sprint Spectrum L.p.
Introduced 04/15/1996
Landline
Lanham
Verizon Maryland
Introduced 02/04/1994
Landline
College Park
Verizon Maryland
Introduced 07/01/1996
Wireless
Greenbelt
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Columbia
Verizon Maryland
Introduced 07/01/1996
Wireless
Oxon Hill
New Cingular Wireless PCS - DC
Introduced 10/11/1997
Landline
Greenbelt
Verizon Maryland
Introduced 10/11/1997
Landline
Hyattsville
Paetec Communications
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 07/01/1996
Landline
Temple Hills
Verizon Maryland
Introduced 07/06/1997
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 07/01/1996
Landline
Glen Echo
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Telcove Operations
Introduced 07/06/1997
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Laurel
Tw Telecom Of Maryland LLC
Introduced 07/06/1997
Landline
Capitol Heights
Verizon Maryland
Introduced 07/04/1995
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 07/04/1995
Wireless
Silver Spring
Omnipoint Communications Cap Operations
Introduced 10/11/1997
Landline
Upper Marlboro
Comcast Phone Of Northern Maryland
Introduced 03/09/2006
Landline
Silver Spring
Comcast Phone Of Northern Maryland
Introduced 06/21/2006
Wireless
Greenbelt
Cavalier Telephone Mid-atlantic
Introduced 09/20/2011
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Wireless
Hagerstown
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Wireless
Silver Spring
New Cingular Wireless PCS - DC
Introduced 10/15/1996
Landline
Capitol Heights
Verizon Maryland
Introduced 01/11/1997
Landline
Oakland
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 09/11/1994
Landline
Capitol Heights
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Mci Worldcom Communications
Introduced 07/04/1995
Landline
Cumberland
Idt America Corp
Introduced 01/31/2006
Landline
Rockville
Cavalier Telephone Mid-atlantic
Introduced 10/11/1997
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Patuxent River
Verizon Maryland
Introduced 01/10/1996
Wireless
Capitol Heights
Sprint Spectrum L.p.
Introduced 02/11/1995
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
New Cingular Wireless PCS - DC
Introduced 10/11/1997
Landline
Chevy Chase
Verizon Maryland
Introduced 10/15/1996
Landline
Kensington
Mci Worldcom Communications
Introduced 07/04/1995
Landline
Poolesville
Verizon Maryland
Introduced 02/04/1994
Landline
Capitol Heights
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 07/04/1995
Landline
Bowie
Verizon Maryland
Introduced 09/11/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Teleport Communications America - DC
Introduced 01/10/1996
Landline
Gaithersburg
Verizon Maryland
Introduced 12/08/2005
Landline
Laurel
Vdl DBA Global Telecom Brokers
Introduced 08/17/2004
Wireless
Mount Rainier
Cellco Partnership DBA Verizon Wireless
Introduced 10/12/2006
Landline
Upper Marlboro
Level 3 Communications
Introduced 10/11/1997
Landline
Westernport
Verizon Maryland
Introduced 01/10/1996
Landline
Frederick
Verizon Maryland
Introduced 01/25/1998
Landline
Laurel
Tw Telecom Of Maryland LLC
Introduced 10/11/1997
Landline
Laurel
Verizon Maryland
Introduced 10/11/1997
Landline
Damascus
Level 3 Communications
Introduced 08/16/2006
Landline
Hyattsville
Mci Worldcom Communications
Introduced 07/04/1995
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Wireless
Gaithersburg
Sprint Spectrum L.p.
Introduced 10/11/1997
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Landline
Damascus
Verizon Maryland
Introduced 01/25/1998
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Wireless
Gaithersburg
Sprint Spectrum L.p.
Introduced 05/18/1998
Landline
Middletown
Verizon Maryland
Introduced 02/04/1994
Landline
Brandywine
Verizon Maryland
Introduced 02/04/1994
Landline
Hollywood
Verizon Maryland
Introduced 02/04/1994
Landline
Waldorf
Verizon Maryland
Introduced 02/11/1995
Landline
Bryans Road
Verizon Maryland
Introduced 02/04/1994
Wireless
Laurel
Verizon Maryland
Introduced 04/01/1997
Landline
Laurel
Comcast Phone Of Northern Maryland
Introduced 10/11/1997
Landline
Frederick
Comcast Phone Of Northern Maryland
Introduced 02/20/2007
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Wireless
Rockville
Verizon Maryland
Introduced 10/15/1996
Landline
Glenn Dale
Comcast Phone Of Northern Maryland
Introduced 10/11/1997
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 04/01/1997
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Swanton
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 10/11/1997
Landline
Laurel
Tw Telecom Of Maryland LLC
Introduced 01/25/1998
Landline
Bowie
Verizon Maryland
Introduced 02/04/1994
Landline
Damascus
Verizon Maryland
Introduced 02/11/1995
Landline
La Plata
Verizon Maryland
Introduced 07/06/1997
Landline
Hagerstown
Verizon Maryland
Introduced 01/25/1998
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Laurel
Cellco Partnership DBA Verizon Wireless
Introduced 08/17/2004
Landline
Waldorf
Verizon Maryland
Introduced 01/25/1998
Wireless
Greenbelt
Verizon Maryland
Introduced 02/11/1995
Landline
Rockville
Verizon Maryland
Introduced 10/09/2003
Wireless
Waldorf
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Rockville
Verizon Maryland
Introduced 03/29/2010
Wireless
Frederick
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 04/15/1996
Landline
Hyattsville
Paetec Communications
Introduced 02/04/1994
Wireless
Chevy Chase
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Poolesville
Verizon Maryland
Introduced 07/01/1996
Landline
Hyattsville
Verizon Maryland
Introduced 07/01/1996
Wireless
Greenbelt
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Damascus
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Williamsport
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 11/20/2002
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Landline
Suitland
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Temple Hills
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Verizon Maryland
Introduced 09/11/1994
Wireless
Beltsville
Verizon Maryland
Introduced 04/15/1996
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Lanham
Verizon Maryland
Introduced 01/11/1997
Landline
Bowie
Verizon Maryland
Introduced 10/11/1997
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Keedysville
Verizon Maryland
Introduced 02/04/1994
Landline
Fort Washington
Verizon Maryland
Introduced 01/11/1997
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Verizon Maryland
Introduced 07/04/1995
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 08/14/1998
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Capitol Heights
Sprint Spectrum L.p.
Introduced 05/18/1998
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 01/25/1998
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Greenbelt
Verizon Maryland
Introduced 08/14/1998
Landline
Emmitsburg
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Comcast Phone Of Northern Maryland
Introduced 08/20/2000
Landline
Fort Washington
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Verizon Maryland
Introduced 05/10/1999
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Landline
Kitzmiller
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Mount Rainier
Comcast Phone Of Northern Maryland
Introduced 04/01/1997
Landline
Silver Spring
Verizon Maryland
Introduced 02/11/1995
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 07/04/1995
Landline
Lanham
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Wireless
Rockville
Cellco Partnership DBA Verizon Wireless
Introduced 05/18/1998
Wireless
Myersville
Sprint Spectrum L.p.
Introduced 10/11/1997
Landline
Lonaconing
Verizon Maryland
Introduced 02/04/1994
Landline
Bowie
Verizon Maryland
Introduced 02/04/1994
Wireless
Myersville
Sprint Spectrum L.p.
Introduced 01/11/1997
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 07/04/1995
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Wireless
Frederick
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Landline
Mechanicsville
Verizon Maryland
Introduced 09/11/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Landline
Leonardtown
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 09/11/1994
Landline
College Park
Comcast Phone Of Northern Maryland
Introduced 10/11/1997
Landline
Oldtown
Verizon Maryland
Introduced 02/04/1994
Landline
College Park
Mci Worldcom Communications
Introduced 07/04/1995
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Wireless
Leonardtown
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Landline
Damascus
Verizon Maryland
Introduced 04/15/1996
Landline
Laurel
Verizon Maryland
Introduced 04/15/1996
Landline
Oxon Hill
Comcast Phone Of Northern Maryland
Introduced 04/01/1997
Landline
Oxon Hill
Comcast Phone Of Northern Maryland
Introduced 04/01/1997
Landline
Greenbelt
Verizon Maryland
Introduced 01/11/1997
Landline
Myersville
Verizon Maryland
Introduced 02/04/1994
Wireless
Greenbelt
Verizon Maryland
Introduced 01/25/1998
Landline
Greenbelt
Verizon Maryland
Introduced 09/11/1994
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Wireless
Hagerstown
Uscoc Of Cumberland DBA United States Cel Md
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Upper Marlboro
Verizon Maryland
Introduced 10/15/1996
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Landline
Capitol Heights
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Xo Maryland
Introduced 09/01/2010
Wireless
Oakland
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Temple Hills
Verizon Maryland
Introduced 02/04/1994
Wireless
Greenbelt
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Wireless
Myersville
New Cingular Wireless PCS - DC
Introduced 05/18/1998
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Greenbelt
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Wireless
Frederick
Cellco Partnership DBA Verizon Wireless
Introduced 07/01/1996
Landline
Gaithersburg
Verizon Maryland
Introduced 01/10/1996
Landline
Suitland
Verizon Maryland
Introduced 04/01/1997
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 04/01/1997
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Oxon Hill
Verizon Maryland
Introduced 04/01/1997
Wireless
Rockville
Verizon Maryland
Introduced 04/01/1997
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 10/15/1996
Wireless
Frederick
Sprint Spectrum L.p.
Introduced 08/14/1998
Landline
Gaithersburg
Quantum Telecommunications
Introduced 10/16/2003
Wireless
Silver Spring
New Cingular Wireless PCS - DC
Introduced 08/14/1998
Landline
Gaithersburg
Verizon Maryland
Introduced 02/11/1995
Landline
Gaithersburg
Verizon Maryland
Introduced 08/14/1998
Wireless
Rockville
New Cingular Wireless PCS - DC
Introduced 08/14/1998
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Starpower Communications
Introduced 11/20/1998
Landline
Oakland
Verizon Maryland
Introduced 08/14/1998
Landline
Indian Head
Ymax Communications Corp.
Introduced 11/15/2006
Wireless
Waldorf
New Cingular Wireless PCS - DC
Introduced 08/14/1998
Wireless
Leonardtown
Sprint Spectrum L.p.
Introduced 11/20/1998
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 08/14/1998
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/11/1995
Landline
La Plata
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 11/20/1998
Landline
Waldorf
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Laurel
Teleport Communications America - DC
Introduced 10/11/1997
Wireless
Rockville
Verizon Maryland
Introduced 11/20/1998
Landline
Rockville
Verizon Maryland
Introduced 10/11/1997
Landline
Landover
Verizon Maryland
Introduced 04/07/2014
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 01/10/1996
Landline
Gaithersburg
Verizon Maryland
Introduced 02/11/1995
Landline
Laurel
Verizon Maryland
Introduced 09/11/1994
Landline
Kensington
Baltimore-washington Telephone (bwt)
Introduced 06/13/2000
Landline
Lanham
Verizon Maryland
Introduced 02/04/1994
Wireless
Waldorf
Usa Mobility Wireless
Introduced 05/18/1998
Wireless
Bethesda
Usa Mobility Wireless
Introduced 05/18/1998
Landline
Gaithersburg
Teleport Communications America - DC
Introduced 10/11/1997
Landline
Mount Rainier
Broadwing Communications. LLC
Introduced 09/06/2011
Wireless
College Park
Usa Mobility Wireless
Introduced 05/18/1998
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Paetec Communications
Introduced 08/14/1998
Landline
Silver Spring
Baltimore-washington Telephone (bwt)
Introduced 03/03/2001
Landline
Silver Spring
Verizon Maryland
Introduced 04/01/1997
Landline
Silver Spring
Verizon Maryland
Introduced 04/01/1997
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Verizon Maryland
Introduced 10/11/1997
Landline
Oxon Hill
Verizon Maryland
Introduced 02/04/1994
Landline
Suitland
Verizon Maryland
Introduced 02/04/1994
Wireless
Gaithersburg
Cellco Partnership DBA Verizon Wireless
Introduced 08/14/1998
Landline
Ashton
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Hagerstown
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Upper Marlboro
Verizon Maryland
Introduced 02/11/1995
Landline
Laurel
Us Lec Of Maryland
Introduced 08/14/1998
Landline
Silver Spring
Paetec Communications
Introduced 08/14/1998
Landline
Lanham
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 10/15/1996
Landline
Brandywine
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 04/01/1997
Landline
Hagerstown
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 01/25/1998
Landline
Silver Spring
Baltimore-washington Telephone (bwt)
Introduced 06/13/2000
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Beltsville
Verizon Maryland
Introduced 01/10/1996
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Paetec Communications
Introduced 08/14/1998
Landline
Silver Spring
Verizon Maryland
Introduced 10/11/1997
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Landline
Columbia
Verizon Maryland
Introduced 02/04/1994
Landline
Hancock
New Frontiers Telecommunications
Introduced 06/13/2000
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Clinton
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 07/06/2006
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Landline
Rockville
Verizon Maryland
Introduced 07/01/1996
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 10/15/1996
Wireless
Frederick
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
New Market
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
La Plata
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 10/15/1996
Wireless
Sandy Spring
Teleport Communications America
Introduced 10/11/2012
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 07/01/1996
Landline
Greenbelt
Verizon Maryland
Introduced 01/10/1996
Wireless
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Wireless
Oakland
Uscoc Of Cumberland DBA United States Cel Md
Introduced 02/04/1994
Landline
Laurel
Verizon Maryland
Introduced 02/11/1995
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Glenn Dale
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 10/11/1997
Landline
Frederick
Verizon Maryland
Introduced 01/10/1996
Landline
Silver Spring
Verizon Maryland
Introduced 01/10/1996
Wireless
Silver Spring
Verizon Maryland
Introduced 05/18/1998
Landline
Upper Marlboro
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 01/10/1996
Wireless
Glenn Dale
Verizon Maryland
Introduced 02/04/1994
Landline
Temple Hills
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/11/1995
Landline
Waldorf
Verizon Maryland
Introduced 01/10/1996
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/11/1995
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 10/11/1997
Landline
Myersville
New Frontiers Telecommunications
Introduced 06/13/2000
Landline
Hyattsville
Verizon Maryland
Introduced 06/13/2000
Landline
Rockville
Level 3 Communications
Introduced 08/14/1998
Landline
Waldorf
Verizon Maryland
Introduced 01/10/1996
Wireless
Frederick
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 01/25/1998
Wireless
Waldorf
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Landline
Frederick
Verizon Maryland
Introduced 08/14/1998
Landline
Waldorf
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 01/10/1996
Wireless
Laurel
Verizon Maryland
Introduced 01/10/1996
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Wireless
Waldorf
New Cingular Wireless PCS - DC
Introduced 01/10/1996
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 04/15/1996
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Sandy Spring
Teleport Communications America - DC
Introduced 10/11/1997
Wireless
Waldorf
New Cingular Wireless PCS - DC
Introduced 05/18/1998
Wireless
Keedysville
New Cingular Wireless PCS - DC
Introduced 03/19/2004
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 09/11/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 01/10/1996
Landline
Hagerstown
Verizon Maryland
Introduced 01/10/1996
Landline
Glenn Dale
Teleport Communications America - DC
Introduced 08/14/1998
Wireless
Myersville
New Cingular Wireless PCS - DC
Introduced 09/11/1994
Landline
Frederick
Verizon Maryland
Introduced 08/14/1998
Landline
Suitland
Verizon Maryland
Introduced 09/11/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Hagerstown
New Frontiers Telecommunications
Introduced 06/13/2000
Wireless
Tall Timbers
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Frederick
New Frontiers Telecommunications
Introduced 06/13/2000
Wireless
Bethesda
Sprint Spectrum L.p.
Introduced 11/20/1998
Wireless
Silver Spring
Omnipoint Communications Cap Operations
Introduced 06/13/2000
Wireless
Frederick
New Cingular Wireless PCS - DC
Introduced 07/06/1997
Landline
Glenn Dale
Teleport Communications America - DC
Introduced 02/04/1994
Landline
Hancock
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/11/1995
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Indian Head
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Damascus
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Oxon Hill
Verizon Maryland
Introduced 05/10/1999
Landline
Frostburg
Verizon Maryland
Introduced 07/04/1995
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Landline
Frostburg
Verizon Maryland
Introduced 02/04/1994
Landline
Leonardtown
Idt America Corp
Introduced 05/23/2007
Landline
Poolesville
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 08/14/1998
Wireless
Frederick
Omnipoint Communications Cap Operations
Introduced 06/13/2000
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Wireless
Cumberland
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Temple Hills
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Airy
Level 3 Communications
Introduced 08/29/2002
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Waldorf
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Wireless
Cumberland
Uscoc Of Cumberland DBA United States Cel Md
Introduced 02/04/1994
Wireless
Greenbelt
Cavalier Telephone Mid-atlantic
Introduced 09/20/2011
Wireless
Greenbelt
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Waldorf
Level 3 Communications
Introduced 12/30/2005
Landline
Frederick
Mci Worldcom Communications
Introduced 03/27/2005
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Hagerstown
Verizon Maryland
Introduced 02/04/1994
Landline
Upper Marlboro
Teleport Communications America - DC
Introduced 08/14/1998
Wireless
Beltsville
Verizon Maryland
Introduced 07/01/1996
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Brandywine
Teleport Communications America - DC
Introduced 08/14/1998
Landline
Gaithersburg
Verizon Maryland
Introduced 10/15/1996
Landline
Cumberland
Verizon Maryland
Introduced 02/04/1994
Landline
Cumberland
Verizon Maryland
Introduced 05/18/1998
Landline
Cumberland
Verizon Maryland
Introduced 02/04/1994
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Landline
Capitol Heights
Baltimore-washington Telephone (bwt)
Introduced 06/13/2000
Wireless
Silver Spring
Omnipoint Communications Cap Operations
Introduced 06/13/2000
Landline
Cumberland
Verizon Maryland
Introduced 02/04/1994
Wireless
Myersville
New Cingular Wireless PCS - DC
Introduced 11/20/1998
Landline
Lanham
Verizon Maryland
Introduced 02/04/1994
Wireless
Greenbelt
Metro PCS
Introduced 10/04/2011
Landline
Hagerstown
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/11/1995
Landline
Suitland
Verizon Maryland
Introduced 02/04/1994
Landline
Suitland
Verizon Maryland
Introduced 02/04/1994
Landline
Lexington Park
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Hagerstown
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 04/22/2004
Landline
Laurel
Level 3 Communications
Introduced 08/14/1998
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Indian Head
Verizon Maryland
Introduced 02/04/1994
Landline
Indian Head
Verizon Maryland
Introduced 10/11/1997
Landline
Hagerstown
Verizon Maryland
Introduced 02/04/1994
Landline
Accident
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Rainier
Teleport Communications America - DC
Introduced 11/20/1998
Wireless
Frederick
Sprint Spectrum L.p.
Introduced 04/01/1997
Landline
Oxon Hill
Verizon Maryland
Introduced 09/11/1994
Landline
Friendsville
Core Communications
Introduced 03/18/2004
Wireless
Waldorf
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
Waldorf
Cellco Partnership DBA Verizon Wireless
Introduced 08/14/1998
Landline
Oxon Hill
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 09/11/1994
Landline
Silver Spring
Mci Worldcom Communications
Introduced 07/04/1995
Landline
Laurel
Tw Telecom Of Maryland LLC
Introduced 01/25/1998
Landline
Patuxent River
Verizon Maryland
Introduced 01/11/1997
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Landline
Cumberland
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Level 3 Communications
Introduced 02/27/2002
Landline
Kensington
Level 3 Communications
Introduced 02/27/2002
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Suitland
Verizon Maryland
Introduced 02/04/1994
Landline
Waldorf
Verizon Maryland
Introduced 01/10/1996
Landline
Bethesda
Verizon Maryland
Introduced 10/15/1996
Landline
Hagerstown
Verizon Maryland
Introduced 04/15/1996
Landline
Bethesda
Verizon Maryland
Introduced 10/15/1996
Landline
Cabin John
Level 3 Communications
Introduced 02/27/2002
Landline
Avenue
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Wireless
Chevy Chase
Verizon Maryland
Introduced 04/01/1997
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Ashton
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Landline
Cumberland
Verizon Maryland
Introduced 02/04/1994
Landline
Capitol Heights
Mci Worldcom Communications
Introduced 07/04/1995
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Upper Marlboro
Verizon Maryland
Introduced 01/25/1998
Landline
Frostburg
New Frontiers Telecommunications
Introduced 06/13/2000
Landline
Brandywine
Verizon Maryland
Introduced 02/04/1994
Landline
Cumberland
New Frontiers Telecommunications
Introduced 06/13/2000
Landline
Cumberland
Verizon Maryland
Introduced 09/11/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 08/14/1998
Landline
Mccoole
Verizon Maryland
Introduced 01/10/1996
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 08/14/1998
Wireless
Frederick
Cellco Partnership DBA Verizon Wireless
Introduced 08/14/1998
Landline
Hyattsville
Core Communications - PA
Introduced 08/13/2002
Landline
Hagerstown
Verizon Maryland
Introduced 02/04/1994
Landline
Hagerstown
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Omnipoint Communications Cap Operations
Introduced 06/13/2000
Wireless
Silver Spring
Omnipoint Communications Cap Operations
Introduced 06/13/2000
Landline
Lanham
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
College Park
Verizon Maryland
Introduced 06/30/2003
Landline
Hagerstown
Verizon Maryland
Introduced 02/04/1994
Landline
New Market
Verizon Maryland
Introduced 07/01/1996
Landline
Keedysville
Core Communications
Introduced 03/18/2004
Wireless
Hagerstown
Virginia PCS Alliance, L.c.
Introduced 04/29/2010
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 10/15/1996
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Sandy Spring
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Bowie
Verizon Maryland
Introduced 02/04/1994
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 07/01/1996
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Capitol Heights
Verizon Maryland
Introduced 02/04/1994
Landline
Bowie
Verizon Maryland
Introduced 02/04/1994
Landline
Monrovia
AT&T Local
Introduced 08/14/1998
Landline
North Beach
Verizon Maryland
Introduced 07/01/1996
Landline
Bethesda
Baltimore-washington Telephone (bwt)
Introduced 06/30/2001
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Suitland
Verizon Maryland
Introduced 02/04/1994
Landline
Waldorf
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Verizon Maryland
Introduced 07/01/1996
Landline
Gaithersburg
AT&T Local
Introduced 11/20/1998
Landline
Laurel
AT&T Local
Introduced 08/14/1998
Landline
Mount Rainier
AT&T Local
Introduced 08/14/1998
Landline
Mount Rainier
AT&T Local
Introduced 08/14/1998
Landline
Smithsburg
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
AT&T Local
Introduced 08/14/1998
Landline
Lexington Park
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
AT&T Local
Introduced 08/14/1998
Landline
Mount Airy
Verizon Maryland
Introduced 02/04/1994
Landline
Silver Spring
AT&T Local
Introduced 08/14/1998
Landline
Adamstown
Verizon Maryland
Introduced 02/04/1994
Landline
Mount Rainier
AT&T Local
Introduced 08/14/1998
Landline
Glenn Dale
Teleport Communications America - DC
Introduced 11/11/2003
Landline
Brunswick
Verizon Maryland
Introduced 02/04/1994
Landline
Temple Hills
Verizon Maryland
Introduced 07/04/1995
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Rockville
Verizon Maryland
Introduced 07/04/1995
Landline
Oxon Hill
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Clear Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Waldorf
Verizon Maryland
Introduced 02/04/1994
Wireless
Mount Rainier
Sprint Spectrum L.p.
Introduced 10/04/2011
Landline
Walkersville
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 02/04/1994
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Waldorf
Cellco Partnership DBA Verizon Wireless
Introduced 08/14/1998
Landline
Oakland
New Frontiers Telecommunications
Introduced 06/13/2000
Landline
Glenn Dale
Level 3 Communications
Introduced 08/04/2002
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Columbia
Verizon Maryland
Introduced 02/04/1994
Landline
Upper Marlboro
Verizon Maryland
Introduced 02/04/1994
Landline
Clinton
Verizon Maryland
Introduced 02/04/1994
Landline
Clear Spring
Core Communications
Introduced 07/12/2002
Landline
Glenn Dale
Verizon Maryland
Introduced 02/04/1994
Landline
Oxon Hill
Level 3 Communications
Introduced 01/09/2002
Landline
Bowie
Verizon Maryland
Introduced 08/20/2000
Landline
Waldorf
Level 3 Communications
Introduced 08/14/1998
Landline
Lexington Park
Verizon Maryland
Introduced 02/04/1994
Landline
Lexington Park
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
New Market
Verizon Maryland
Introduced 02/04/1994
Landline
Lexington Park
Verizon Maryland
Introduced 10/15/1996
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Clinton
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Waldorf
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Ridge
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Adamstown
Verizon Maryland
Introduced 02/04/1994
Landline
Laurel
Cellco Partnership DBA Verizon Wireless
Introduced 03/27/2005
Landline
Cumberland
Level 3 Communications
Introduced 05/02/2002
Landline
Clinton
Verizon Maryland
Introduced 01/11/1997
Landline
Baltimore
Verizon Maryland
Introduced 01/10/1996
Landline
Silver Spring
Verizon Maryland
Introduced 02/11/1995
Landline
Tall Timbers
Level 3 Communications
Introduced 08/14/1998
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
New Market
Core Communications
Introduced 03/18/2004
Landline
Hyattsville
Verizon Maryland
Introduced 09/11/1994
Landline
Mechanicsville
Verizon Maryland
Introduced 02/04/1994
Landline
Waldorf
Verizon Maryland
Introduced 02/11/1995
Landline
Laurel
Verizon Maryland
Introduced 07/04/1995
Landline
Hyattsville
Verizon Maryland
Introduced 02/11/1995
Landline
Brandywine
Verizon Maryland
Introduced 02/04/1994
Landline
Glenn Dale
Verizon Maryland
Introduced 01/10/1996
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 03/11/2005
Landline
Waldorf
Verizon Maryland
Introduced 01/10/1996
Landline
Temple Hills
Verizon Maryland
Introduced 02/04/1994
Landline
Grantsville
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 01/10/1996
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Walkersville
Verizon Maryland
Introduced 02/04/1994
Landline
Temple Hills
Verizon Maryland
Introduced 02/04/1994
Landline
Frederick
Verizon Maryland
Introduced 10/22/2013
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Wireless
Leonardtown
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 10/15/1996
Landline
Chevy Chase
Verizon Maryland
Introduced 05/18/1998
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Odenton
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Mc Henry
Mountain Communications DBA Procom
Introduced 12/27/2012
Landline
Bethesda
Starpower Communications
Introduced 11/20/1998
Landline
Poolesville
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Starpower Communications
Introduced 08/14/1998
Landline
Lanham
Verizon Maryland
Introduced 02/04/1994
Wireless
Bethesda
New Cingular Wireless PCS - DC
Introduced 02/04/1994
Landline
Silver Spring
Starpower Communications
Introduced 08/14/1998
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Wireless
Hyattsville
Verizon Maryland
Introduced 09/11/1994
Landline
Ashton
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Landline
Kensington
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Beltsville
Verizon Maryland
Introduced 07/04/1995
Landline
La Plata
Verizon Maryland
Introduced 02/04/1994
Landline
Kensington
Verizon Maryland
Introduced 02/04/1994
Landline
La Plata
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Beltsville
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Landline
Laurel
Verizon Maryland
Introduced 04/15/1996
Wireless
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 02/11/1995
Landline
Kensington
Verizon Maryland
Introduced 02/04/1994
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Landline
Gaithersburg
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Kensington
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 04/15/1996
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Kensington
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Upper Marlboro
Verizon Maryland
Introduced 02/04/1994
Landline
Laurel
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Rockville
Verizon Maryland
Introduced 05/22/2002
Landline
Laurel
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Silver Spring
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Kensington
Verizon Maryland
Introduced 01/11/1997
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Wireless
Myersville
New Cingular Wireless PCS - DC
Introduced 04/15/1996
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Hyattsville
Mcimetro Access Transmission Services LLC
Introduced 11/20/1998
Landline
Suitland
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Mci Worldcom Communications
Introduced 07/04/1995
Landline
Brunswick
Comcast Phone Of Northern Maryland
Introduced 03/06/2007
Landline
Annapolis
Verizon Maryland
Introduced 02/04/1994
Landline
Oxon Hill
Starpower Communications
Introduced 11/20/1998
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Glenn Dale
Verizon Maryland
Introduced 02/04/1994
Landline
Laurel
Starpower Communications
Introduced 11/20/1998
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Unknown
Baltimore-washington Telephone (bwt)
Introduced 10/17/2005
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 10/11/1997
Landline
Gaithersburg
Verizon Maryland
Introduced 04/15/1996
Wireless
Silver Spring
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Mount Rainier
Tw Telecom Of Maryland LLC
Introduced 02/04/1994
Landline
Greenbelt
Verizon Maryland
Introduced 02/04/1994
Landline
Bethesda
Verizon Maryland
Introduced 02/04/1994
Landline
Rockville
Verizon Maryland
Introduced 02/04/1994
Landline
Hyattsville
Verizon Maryland
Introduced 02/04/1994
Landline
Chevy Chase
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 10/11/1997
Wireless
Hagerstown
Uscoc Of Cumberland DBA United States Cel Md
Introduced 07/06/1997
Landline
Silver Spring
Verizon Maryland
Introduced 02/04/1994
Landline
Gaithersburg
Verizon Maryland
Introduced 02/04/1994
Wireless
Hagerstown
Sprint Spectrum L.p.
Introduced 04/15/1996
Wireless
Hagerstown
Sprint Spectrum L.p.
Introduced 10/11/1997
Wireless
Greenbelt
Verizon Maryland
Introduced 11/20/1998
Landline
Valley Lee
Verizon Maryland
Introduced 02/04/1994
Landline
Patuxent River
Verizon Maryland
Introduced 08/14/1998
Wireless
Beltsville
Sprint Spectrum L.p.
Introduced 01/10/1996
Landline
Leonardtown
Verizon Maryland
Introduced 01/25/1998
Landline
Rockville
Verizon Maryland
Introduced 01/10/1996

Heavily Reported Numbers

Phone complaint data powered by CallerCenter.com

Most Searched Numbers

Prefixes with the Most Subscribers