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301 Area Code

State: Maryland
Major City: Germantown
Timezone: Eastern
Current Time: 12:57pm
Short URL: allareacodes.com/301

Area Code 301 Map

Where is area code 301?

Area code 301 is located in western Maryland and covers Germantown, Silver Spring, Waldorf, Frederick, and Rockville. It has a single overlay (240) that serves the same area.

301 area code

What time zone is area code 301?

The 301 area code is located in the Eastern timezone. The Eastern time zone is also known as America/New_York. As of the last time this page was loaded, the current time is 12:57pm.

History

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 and is currently an overlay to 301.

Nearby Area Codes

202 (District of Columbia)
223/717 (Lancaster, PA)
240/301 (Germantown, MD)
304/681 (West Virginia)
410/443/667 (Baltimore, MD)
434 (Lynchburg, VA)
484/610 (Allentown, PA)
540 (Roanoke, VA)
571/703 (Arlington, VA)
724 (New Castle, PA)
757 (Virginia Beach, VA)
804 (Richmond, VA)
814 (Erie, PA)
878 (Pittsburgh, PA)

Top 11 Counties in Area Code 301

CountyTotal Population% of 301% of County
Montgomery, MD971,77711%100%
Prince George's, MD863,42010%100%
Frederick, MD233,38514%96%
Washington, MD147,43010%100%
Charles, MD146,55113%100%
St. Mary's, MD105,15116%100%
Allegany, MD75,0879%100%
Howard, MD287,0851%24%
Anne Arundel, MD537,6561%7%
Garrett, MD30,09714%100%
Calvert, MD88,7371%8%

Top 50 Cities in Area Code 301

CityTotal Population% of 301% of City
Germantown, MD86,3950%100%
Silver Spring, MD71,4520%100%
Waldorf, MD67,7521%100%
Frederick, MD65,2390%100%
Rockville, MD61,2090%100%
Bethesda, MD60,8580%100%
Gaithersburg, MD59,9330%100%
Bowie, MD54,7270%100%
Aspen Hill, MD48,7590%100%
Wheaton, MD48,2840%100%
Potomac, MD44,9651%100%
North Bethesda, MD43,8280%100%
Hagerstown, MD39,6620%100%
Clinton, MD35,9701%100%
Olney, MD33,8440%100%
Chillum, MD33,5130%100%
Montgomery Village, MD32,0320%100%
College Park, MD30,4130%100%
South Laurel, MD26,1120%100%
Suitland, MD25,8250%100%
Laurel, MD25,1150%100%
North Potomac, MD24,4100%100%
Scaggsville, MD24,3330%100%
Fort Washington, MD23,7170%100%
Fairland, MD23,6810%100%
Landover, MD23,0780%100%
Greenbelt, MD23,0680%100%
Cumberland, MD20,8590%100%
Camp Springs, MD19,0960%100%
Langley Park, MD18,7550%100%
Ballenger Creek, MD18,2740%100%
Calverton, MD17,7240%100%
Oxon Hill, MD17,7220%100%
Hyattsville, MD17,5570%100%
White Oak, MD17,4030%100%
Seabrook, MD17,2870%100%
Glassmanor, MD17,2950%100%
Redland, MD17,2420%100%
Beltsville, MD16,7720%100%
Takoma Park, MD16,7150%100%
Hillcrest Heights, MD16,4690%100%
Maryland City, MD16,0930%100%
East Riverdale, MD15,5090%100%
Damascus, MD15,2570%100%
Cloverly, MD15,1260%100%
Adelphi, MD15,0860%100%
Colesville, MD14,6470%100%
Clarksburg, MD13,7660%100%
Glenmont, MD13,5290%100%
Glenn Dale, MD13,4660%100%

Largest Telephone Carriers

Landline

Prefixes Carrier
58%Verizon
3%Teleport America
3%Mci Worldcom
2%Mcimetro Access Transmission Services
2%Level 3
2%Comcast Phone Of Northern
1%AT&T Local
6%Other

Wireless

Prefixes Carrier
6%Verizon Wireless
5%Cingular
4%Sprint
3%Verizon
2%Usa Mobility Wireless
1%Omnipoint Cap Operations
1%United States Cel Md
1%Other

Prefixes

Assigned

Usage


Prefix
Usage
Primary City
Carrier
Introduced
(301) 200-
Indian Head
Bandwidth.com Clec
02/24/2011
(301) 202-
Chevy Chase
New Cingular Wireless PCS - DC
12/19/2008
(301) 203-
Fort Washington
Verizon Maryland
02/04/1994
(301) 204-
Bethesda
New Cingular Wireless PCS - DC
04/15/1996
(301) 205-
Edgewater
Verizon Maryland
07/06/1997
(301) 206-
Laurel
Verizon Maryland
02/04/1994
(301) 207-
Greenbelt
Usa Mobility Wireless
02/04/1994
(301) 208-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 209-
Hyattsville
Verizon Maryland
02/04/1994
(301) 210-
Beltsville
Verizon Maryland
02/04/1994
(301) 212-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 213-
Beltsville
Sprint Spectrum
07/06/1997
(301) 214-
Rockville
Verizon Maryland
02/04/1994
(301) 215-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 216-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 217-
Rockville
Verizon Maryland
02/04/1994
(301) 218-
Bowie
Verizon Maryland
01/10/1996
(301) 219-
Bethesda
New Cingular Wireless PCS - DC
07/04/1995
(301) 220-
Greenbelt
Verizon Maryland
02/04/1994
(301) 221-
Bethesda
New Cingular Wireless PCS - DC
09/11/1994
(301) 222-
Bethesda
Cavalier Telephone Mid-atlantic
10/11/1997
(301) 223-
Williamsport
Verizon Maryland
02/04/1994
(301) 224-
Chevy Chase
Usa Mobility Wireless
04/15/1996
(301) 225-
Glenn Dale
Teleport Communications America - DC
05/21/2009
(301) 226-
Hyattsville
Verizon Maryland
07/01/1996
(301) 227-
Glen Echo
Verizon Maryland
02/04/1994
(301) 228-
Frederick
Verizon Maryland
07/06/1997
(301) 229-
Glen Echo
Verizon Maryland
02/04/1994
(301) 230-
Rockville
Verizon Maryland
02/04/1994
(301) 231-
Rockville
Verizon Maryland
02/04/1994
(301) 232-
Sandy Spring
Mci Worldcom Communications
01/11/1997
(301) 233-
Silver Spring
Cellco Partnership DBA Verizon Wireless
04/01/1997
(301) 234-
Fort Washington
Verizon Maryland
01/11/1997
(301) 235-
Clinton
Mcimetro Access Transmission Services LLC
01/11/1997
(301) 236-
Silver Spring
Verizon Maryland
02/04/1994
(301) 237-
Beltsville
Sprint Spectrum
04/01/1997
(301) 238-
Temple Hills
Verizon Maryland
02/04/1994
(301) 239-
Hyattsville
Verizon Maryland
02/11/1995
(301) 240-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 241-
Highfield
Verizon Maryland
01/10/1996
(301) 242-
Brandywine
Mcimetro Access Transmission Services LLC
01/11/1997
(301) 243-
Bethesda
Verizon Maryland
07/20/2006
(301) 244-
Rockville
Telcove Operations
01/11/1997
(301) 245-
Bittinger
Verizon Maryland
02/04/1994
(301) 246-
Nanjemoy
Verizon Maryland
02/04/1994
(301) 247-
Leonardtown
New Cingular Wireless PCS - DC
01/10/1996
(301) 248-
Fort Washington
Verizon Maryland
02/04/1994
(301) 249-
Bowie
Verizon Maryland
02/04/1994
(301) 250-
Rockville
Mci Worldcom Communications
01/11/1997
(301) 251-
Rockville
Verizon Maryland
02/04/1994
(301) 252-
Gaithersburg
Sprint Spectrum
01/10/1996
(301) 253-
Damascus
Verizon Maryland
02/04/1994
(301) 254-
Beltsville
Sprint Spectrum
01/10/1996
(301) 255-
Rockville
Verizon Maryland
01/11/1997
(301) 256-
Laurel
Mci Worldcom Communications
01/11/1997
(301) 257-
Beltsville
Sprint Spectrum
10/11/1997
(301) 258-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 259-
Issue
Verizon Maryland
02/04/1994
(301) 260-
Ashton
Verizon Maryland
07/06/1997
(301) 261-
Glenn Dale
Verizon Maryland
02/04/1994
(301) 262-
Bowie
Verizon Maryland
02/04/1994
(301) 263-
Glen Echo
Verizon Maryland
04/01/1997
(301) 264-
Mount Savage
Verizon Maryland
02/04/1994
(301) 265-
Fort Washington
Verizon Maryland
01/11/1997
(301) 266-
Waldorf
New Cingular Wireless PCS - DC
01/11/1997
(301) 267-
Greenbelt
Sprint Spectrum
10/04/2011
(301) 268-
Cumberland
Uscoc Of Cumberland DBA United States Cel Md
07/06/1997
(301) 270-
Hyattsville
Verizon Maryland
02/04/1994
(301) 271-
Thurmont
Verizon Maryland
02/04/1994
(301) 272-
Rockville
Mci Worldcom Communications
01/11/1997
(301) 273-
Silver Spring
Mci Worldcom Communications
01/11/1997
(301) 274-
Hughesville
Verizon Maryland
02/04/1994
(301) 275-
Bethesda
New Cingular Wireless PCS - DC
02/11/1995
(301) 276-
Hyattsville
Mci Worldcom Communications
01/11/1997
(301) 277-
Hyattsville
Verizon Maryland
02/04/1994
(301) 278-
Mount Rainier
Mci Worldcom Communications
01/11/1997
(301) 279-
Rockville
Verizon Maryland
02/04/1994
(301) 280-
Chevy Chase
Verizon Maryland
10/11/1997
(301) 281-
Oxon Hill
Mci Worldcom Communications
01/11/1997
(301) 282-
Silver Spring
Verizon Maryland
07/04/1995
(301) 283-
Bryans Road
Verizon Maryland
02/04/1994
(301) 284-
Rockville
Mci Worldcom Communications
01/11/1997
(301) 285-
Silver Spring
Verizon Maryland
07/04/1995
(301) 286-
Greenbelt
Verizon Maryland
02/04/1994
(301) 287-
Rockville
Mci Worldcom Communications
01/11/1997
(301) 288-
Rockville
Mci Worldcom Communications
01/10/1996
(301) 289-
College Park
Mci Worldcom Communications
01/11/1997
(301) 290-
Mechanicsville
Verizon Maryland
07/06/1997
(301) 291-
Mount Rainier
Mci Worldcom Communications
01/11/1997
(301) 292-
Fort Washington
Verizon Maryland
02/04/1994
(301) 293-
Myersville
Verizon Maryland
02/04/1994
(301) 294-
Rockville
Verizon Maryland
02/04/1994
(301) 295-
Rockville
Verizon Maryland
02/04/1994
(301) 296-
Rockville
Mci Worldcom Communications
07/04/1995
(301) 297-
Fort Washington
Verizon Maryland
02/04/1994
(301) 298-
Upper Marlboro
Mcimetro Access Transmission Services LLC
04/01/1997
(301) 299-
Bethesda
Verizon Maryland
02/04/1994
(301) 300-
Bethesda
Cellco Partnership DBA Verizon Wireless
03/30/2007
(301) 302-
Hagerstown
Sprint Spectrum
10/05/2004
(301) 303-
Greenbelt
Usa Mobility Wireless
02/04/1994
(301) 304-
Frederick
Comcast Phone Of Northern Maryland
03/06/2007
(301) 305-
Frederick
Sprint Spectrum
04/15/1996
(301) 306-
Lanham
Verizon Maryland
02/04/1994
(301) 307-
College Park
Verizon Maryland
07/01/1996
(301) 308-
Greenbelt
Usa Mobility Wireless
02/04/1994
(301) 309-
Rockville
Verizon Maryland
02/04/1994
(301) 310-
Columbia
Verizon Maryland
07/01/1996
(301) 312-
Oxon Hill
New Cingular Wireless PCS - DC
10/11/1997
(301) 313-
Greenbelt
Verizon Maryland
10/11/1997
(301) 314-
Hyattsville
Paetec Communications
02/04/1994
(301) 315-
Rockville
Verizon Maryland
07/01/1996
(301) 316-
Temple Hills
Verizon Maryland
07/06/1997
(301) 317-
Laurel
Verizon Maryland
02/04/1994
(301) 318-
Bethesda
New Cingular Wireless PCS - DC
02/04/1994
(301) 319-
Rockville
Verizon Maryland
07/01/1996
(301) 320-
Glen Echo
Verizon Maryland
02/04/1994
(301) 321-
Rockville
Telcove Operations
07/06/1997
(301) 322-
Hyattsville
Verizon Maryland
02/04/1994
(301) 323-
Laurel
Tw Telecom Of Maryland LLC
07/06/1997
(301) 324-
Capitol Heights
Verizon Maryland
07/04/1995
(301) 325-
Silver Spring
Cellco Partnership DBA Verizon Wireless
07/04/1995
(301) 326-
Silver Spring
Omnipoint Communications Cap Operations
10/11/1997
(301) 327-
Upper Marlboro
Comcast Phone Of Northern Maryland
03/09/2006
(301) 328-
Silver Spring
Comcast Phone Of Northern Maryland
06/21/2006
(301) 329-
Greenbelt
Cavalier Telephone Mid-atlantic
09/20/2011
(301) 330-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 331-
Hagerstown
New Cingular Wireless PCS - DC
02/04/1994
(301) 332-
Silver Spring
New Cingular Wireless PCS - DC
10/15/1996
(301) 333-
Capitol Heights
Verizon Maryland
01/11/1997
(301) 334-
Oakland
Verizon Maryland
02/04/1994
(301) 335-
Bethesda
New Cingular Wireless PCS - DC
09/11/1994
(301) 336-
Capitol Heights
Verizon Maryland
02/04/1994
(301) 337-
Gaithersburg
Mci Worldcom Communications
07/04/1995
(301) 338-
Cumberland
Idt America Corp
01/31/2006
(301) 339-
Rockville
Cavalier Telephone Mid-atlantic
10/11/1997
(301) 340-
Rockville
Verizon Maryland
02/04/1994
(301) 341-
Hyattsville
Verizon Maryland
02/04/1994
(301) 342-
Patuxent River
Verizon Maryland
01/10/1996
(301) 343-
Capitol Heights
Sprint Spectrum
02/11/1995
(301) 344-
Greenbelt
Verizon Maryland
02/04/1994
(301) 345-
Greenbelt
Verizon Maryland
02/04/1994
(301) 346-
Silver Spring
New Cingular Wireless PCS - DC
10/11/1997
(301) 347-
Chevy Chase
Verizon Maryland
10/15/1996
(301) 348-
Kensington
Mci Worldcom Communications
07/04/1995
(301) 349-
Poolesville
Verizon Maryland
02/04/1994
(301) 350-
Capitol Heights
Verizon Maryland
02/04/1994
(301) 351-
Silver Spring
Cellco Partnership DBA Verizon Wireless
07/04/1995
(301) 352-
Bowie
Verizon Maryland
09/11/1994
(301) 353-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 354-
Rockville
Teleport Communications America - DC
01/10/1996
(301) 355-
Gaithersburg
Verizon Maryland
12/08/2005
(301) 356-
Laurel
Vdl DBA Global Telecom Brokers
08/17/2004
(301) 357-
Mount Rainier
Cellco Partnership DBA Verizon Wireless
10/12/2006
(301) 358-
Upper Marlboro
Level 3 Communications
10/11/1997
(301) 359-
Westernport
Verizon Maryland
01/10/1996
(301) 360-
Frederick
Verizon Maryland
01/25/1998
(301) 361-
Laurel
Tw Telecom Of Maryland LLC
10/11/1997
(301) 362-
Laurel
Verizon Maryland
10/11/1997
(301) 363-
Damascus
Level 3 Communications
08/16/2006
(301) 364-
Hyattsville
Mci Worldcom Communications
07/04/1995
(301) 365-
Bethesda
Verizon Maryland
02/04/1994
(301) 366-
Gaithersburg
Sprint Spectrum
10/11/1997
(301) 367-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/11/1995
(301) 368-
Damascus
Verizon Maryland
01/25/1998
(301) 369-
Laurel
Verizon Maryland
02/04/1994
(301) 370-
Gaithersburg
Sprint Spectrum
05/18/1998
(301) 371-
Middletown
Verizon Maryland
02/04/1994
(301) 372-
Brandywine
Verizon Maryland
02/04/1994
(301) 373-
Hollywood
Verizon Maryland
02/04/1994
(301) 374-
Waldorf
Verizon Maryland
02/11/1995
(301) 375-
Bryans Road
Verizon Maryland
02/04/1994
(301) 376-
Laurel
Verizon Maryland
04/01/1997
(301) 377-
Laurel
Comcast Phone Of Northern Maryland
10/11/1997
(301) 378-
Frederick
Comcast Phone Of Northern Maryland
02/20/2007
(301) 379-
Beltsville
Sprint Spectrum
01/25/1998
(301) 380-
Rockville
Verizon Maryland
02/04/1994
(301) 382-
Rockville
Verizon Maryland
10/15/1996
(301) 383-
Glenn Dale
Comcast Phone Of Northern Maryland
10/11/1997
(301) 384-
Silver Spring
Verizon Maryland
02/04/1994
(301) 385-
Bethesda
New Cingular Wireless PCS - DC
04/01/1997
(301) 386-
Hyattsville
Verizon Maryland
02/04/1994
(301) 387-
Swanton
Verizon Maryland
02/04/1994
(301) 388-
Silver Spring
Verizon Maryland
10/11/1997
(301) 389-
Laurel
Tw Telecom Of Maryland LLC
01/25/1998
(301) 390-
Bowie
Verizon Maryland
02/04/1994
(301) 391-
Damascus
Verizon Maryland
02/11/1995
(301) 392-
La Plata
Verizon Maryland
07/06/1997
(301) 393-
Hagerstown
Verizon Maryland
01/25/1998
(301) 394-
Beltsville
Verizon Maryland
02/04/1994
(301) 395-
Laurel
Cellco Partnership DBA Verizon Wireless
08/17/2004
(301) 396-
Waldorf
Verizon Maryland
01/25/1998
(301) 397-
Greenbelt
Verizon Maryland
02/11/1995
(301) 398-
Rockville
Verizon Maryland
10/09/2003
(301) 399-
Waldorf
Sprint Spectrum
01/25/1998
(301) 400-
Rockville
Verizon Maryland
03/29/2010
(301) 401-
Frederick
New Cingular Wireless PCS - DC
02/04/1994
(301) 402-
Bethesda
Verizon Maryland
02/04/1994
(301) 403-
Hyattsville
Verizon Maryland
02/04/1994
(301) 404-
Beltsville
Sprint Spectrum
04/15/1996
(301) 405-
Hyattsville
Paetec Communications
02/04/1994
(301) 406-
Chevy Chase
Usa Mobility Wireless
02/04/1994
(301) 407-
Poolesville
Verizon Maryland
07/01/1996
(301) 408-
Hyattsville
Verizon Maryland
07/01/1996
(301) 409-
Greenbelt
Usa Mobility Wireless
02/04/1994
(301) 412-
Bethesda
New Cingular Wireless PCS - DC
02/04/1994
(301) 413-
Rockville
Verizon Maryland
02/04/1994
(301) 414-
Damascus
Verizon Maryland
02/04/1994
(301) 415-
Silver Spring
Verizon Maryland
02/04/1994
(301) 416-
Williamsport
Verizon Maryland
02/04/1994
(301) 417-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 418-
Frederick
Verizon Maryland
11/20/2002
(301) 419-
Beltsville
Verizon Maryland
02/04/1994
(301) 420-
Suitland
Verizon Maryland
02/04/1994
(301) 421-
Silver Spring
Verizon Maryland
02/04/1994
(301) 422-
Hyattsville
Verizon Maryland
02/04/1994
(301) 423-
Temple Hills
Verizon Maryland
02/04/1994
(301) 424-
Rockville
Verizon Maryland
02/04/1994
(301) 425-
Beltsville
Verizon Maryland
09/11/1994
(301) 426-
Beltsville
Verizon Maryland
04/15/1996
(301) 427-
Silver Spring
Verizon Maryland
02/04/1994
(301) 428-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 429-
Lanham
Verizon Maryland
01/11/1997
(301) 430-
Bowie
Verizon Maryland
10/11/1997
(301) 431-
Hyattsville
Verizon Maryland
02/04/1994
(301) 432-
Keedysville
Verizon Maryland
02/04/1994
(301) 433-
Fort Washington
Verizon Maryland
01/11/1997
(301) 434-
Hyattsville
Verizon Maryland
02/04/1994
(301) 435-
Bethesda
Verizon Maryland
07/04/1995
(301) 436-
Hyattsville
Verizon Maryland
02/04/1994
(301) 437-
Beltsville
Sprint Spectrum
08/14/1998
(301) 438-
Rockville
Verizon Maryland
02/04/1994
(301) 439-
Hyattsville
Verizon Maryland
02/04/1994
(301) 440-
Capitol Heights
Sprint Spectrum
05/18/1998
(301) 441-
Greenbelt
Verizon Maryland
02/04/1994
(301) 442-
Beltsville
Sprint Spectrum
01/25/1998
(301) 443-
Rockville
Verizon Maryland
02/04/1994
(301) 444-
Gaithersburg
Verizon Maryland
01/25/1998
(301) 445-
Hyattsville
Verizon Maryland
02/04/1994
(301) 446-
Greenbelt
Verizon Maryland
08/14/1998
(301) 447-
Emmitsburg
Verizon Maryland
02/04/1994
(301) 448-
Silver Spring
Comcast Phone Of Northern Maryland
08/20/2000
(301) 449-
Fort Washington
Verizon Maryland
02/04/1994
(301) 451-
Bethesda
Verizon Maryland
05/10/1999
(301) 452-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/11/1995
(301) 453-
Kitzmiller
Verizon Maryland
02/04/1994
(301) 454-
Hyattsville
Verizon Maryland
02/04/1994
(301) 455-
Beltsville
Sprint Spectrum
01/25/1998
(301) 456-
Mount Rainier
Comcast Phone Of Northern Maryland
04/01/1997
(301) 457-
Silver Spring
Verizon Maryland
02/11/1995
(301) 458-
Mount Rainier
Teleport Communications America - DC
07/04/1995
(301) 459-
Lanham
Verizon Maryland
02/04/1994
(301) 460-
Rockville
Verizon Maryland
02/04/1994
(301) 461-
Rockville
Cellco Partnership DBA Verizon Wireless
05/18/1998
(301) 462-
Myersville
Sprint Spectrum
10/11/1997
(301) 463-
Lonaconing
Verizon Maryland
02/04/1994
(301) 464-
Bowie
Verizon Maryland
02/04/1994
(301) 465-
Myersville
Sprint Spectrum
01/11/1997
(301) 466-
Silver Spring
Cellco Partnership DBA Verizon Wireless
07/04/1995
(301) 467-
Silver Spring
Cellco Partnership DBA Verizon Wireless
01/10/1996
(301) 468-
Rockville
Verizon Maryland
02/04/1994
(301) 469-
Bethesda
Verizon Maryland
02/04/1994
(301) 470-
Laurel
Verizon Maryland
02/04/1994
(301) 471-
Frederick
Cellco Partnership DBA Verizon Wireless
04/15/1996
(301) 472-
Mechanicsville
Verizon Maryland
09/11/1994
(301) 473-
Frederick
Verizon Maryland
02/04/1994
(301) 474-
Greenbelt
Verizon Maryland
02/04/1994
(301) 475-
Leonardtown
Verizon Maryland
02/04/1994
(301) 476-
Silver Spring
Verizon Maryland
09/11/1994
(301) 477-
College Park
Comcast Phone Of Northern Maryland
10/11/1997
(301) 478-
Oldtown
Verizon Maryland
02/04/1994
(301) 479-
College Park
Mci Worldcom Communications
07/04/1995
(301) 480-
Bethesda
Verizon Maryland
02/04/1994
(301) 481-
Leonardtown
Cellco Partnership DBA Verizon Wireless
04/15/1996
(301) 482-
Damascus
Verizon Maryland
04/15/1996
(301) 483-
Laurel
Verizon Maryland
04/15/1996
(301) 484-
Oxon Hill
Comcast Phone Of Northern Maryland
04/01/1997
(301) 485-
Oxon Hill
Comcast Phone Of Northern Maryland
04/01/1997
(301) 486-
Greenbelt
Verizon Maryland
01/11/1997
(301) 487-
Myersville
Verizon Maryland
02/04/1994
(301) 488-
Greenbelt
Verizon Maryland
01/25/1998
(301) 489-
Greenbelt
Verizon Maryland
09/11/1994
(301) 490-
Laurel
Verizon Maryland
02/04/1994
(301) 491-
Hagerstown
Uscoc Of Cumberland DBA United States Cel Md
02/04/1994
(301) 492-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 493-
Rockville
Verizon Maryland
02/04/1994
(301) 494-
Upper Marlboro
Verizon Maryland
10/15/1996
(301) 495-
Silver Spring
Verizon Maryland
02/04/1994
(301) 496-
Bethesda
Verizon Maryland
02/04/1994
(301) 497-
Laurel
Verizon Maryland
02/04/1994
(301) 498-
Laurel
Verizon Maryland
02/04/1994
(301) 499-
Capitol Heights
Verizon Maryland
02/04/1994
(301) 500-
Chevy Chase
Xo Maryland
09/01/2010
(301) 501-
Oakland
New Cingular Wireless PCS - DC
02/04/1994
(301) 502-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 503-
Bethesda
New Cingular Wireless PCS - DC
02/04/1994
(301) 504-
Silver Spring
Verizon Maryland
02/04/1994
(301) 505-
Temple Hills
Verizon Maryland
02/04/1994
(301) 506-
Greenbelt
Usa Mobility Wireless
02/04/1994
(301) 507-
Greenbelt
Verizon Maryland
02/04/1994
(301) 508-
Myersville
New Cingular Wireless PCS - DC
05/18/1998
(301) 509-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 510-
Greenbelt
Usa Mobility Wireless
02/04/1994
(301) 512-
Silver Spring
Cellco Partnership DBA Verizon Wireless
01/10/1996
(301) 513-
Greenbelt
Verizon Maryland
02/04/1994
(301) 514-
Frederick
Cellco Partnership DBA Verizon Wireless
07/01/1996
(301) 515-
Gaithersburg
Verizon Maryland
01/10/1996
(301) 516-
Suitland
Verizon Maryland
04/01/1997
(301) 517-
Rockville
Verizon Maryland
02/04/1994
(301) 518-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 519-
Gaithersburg
Verizon Maryland
04/01/1997
(301) 520-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 521-
Oxon Hill
Verizon Maryland
04/01/1997
(301) 522-
Rockville
Verizon Maryland
04/01/1997
(301) 523-
Beltsville
Sprint Spectrum
10/15/1996
(301) 524-
Frederick
Sprint Spectrum
08/14/1998
(301) 525-
Gaithersburg
Quantum Telecommunications
10/16/2003
(301) 526-
Silver Spring
New Cingular Wireless PCS - DC
08/14/1998
(301) 527-
Gaithersburg
Verizon Maryland
02/11/1995
(301) 528-
Gaithersburg
Verizon Maryland
08/14/1998
(301) 529-
Rockville
New Cingular Wireless PCS - DC
08/14/1998
(301) 530-
Rockville
Verizon Maryland
02/04/1994
(301) 531-
Hyattsville
Starpower Communications
11/20/1998
(301) 533-
Oakland
Verizon Maryland
08/14/1998
(301) 534-
Indian Head
Ymax Communications Corp.
11/15/2006
(301) 535-
Waldorf
New Cingular Wireless PCS - DC
08/14/1998
(301) 536-
Leonardtown
Sprint Spectrum
11/20/1998
(301) 537-
Beltsville
Sprint Spectrum
08/14/1998
(301) 538-
Bethesda
New Cingular Wireless PCS - DC
02/11/1995
(301) 539-
La Plata
Teleport Communications America - DC
08/14/1998
(301) 540-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 541-
Mount Rainier
Teleport Communications America - DC
11/20/1998
(301) 542-
Waldorf
Teleport Communications America - DC
08/14/1998
(301) 543-
Laurel
Teleport Communications America - DC
10/11/1997
(301) 544-
Rockville
Verizon Maryland
11/20/1998
(301) 545-
Rockville
Verizon Maryland
10/11/1997
(301) 546-
Landover
Verizon Maryland
04/07/2014
(301) 547-
Mount Rainier
Teleport Communications America - DC
01/10/1996
(301) 548-
Gaithersburg
Verizon Maryland
02/11/1995
(301) 549-
Laurel
Verizon Maryland
09/11/1994
(301) 551-
Kensington
Baltimore-washington Telephone (bwt)
06/13/2000
(301) 552-
Lanham
Verizon Maryland
02/04/1994
(301) 553-
Waldorf
Usa Mobility Wireless
05/18/1998
(301) 554-
Bethesda
Usa Mobility Wireless
05/18/1998
(301) 556-
Gaithersburg
Teleport Communications America - DC
10/11/1997
(301) 557-
Mount Rainier
Broadwing Communications. LLC
09/06/2011
(301) 558-
College Park
Usa Mobility Wireless
05/18/1998
(301) 559-
Hyattsville
Verizon Maryland
02/04/1994
(301) 560-
Hyattsville
Paetec Communications
08/14/1998
(301) 561-
Silver Spring
Baltimore-washington Telephone (bwt)
03/03/2001
(301) 562-
Silver Spring
Verizon Maryland
04/01/1997
(301) 563-
Silver Spring
Verizon Maryland
04/01/1997
(301) 564-
Rockville
Verizon Maryland
02/04/1994
(301) 565-
Silver Spring
Verizon Maryland
02/04/1994
(301) 566-
Beltsville
Verizon Maryland
10/11/1997
(301) 567-
Oxon Hill
Verizon Maryland
02/04/1994
(301) 568-
Suitland
Verizon Maryland
02/04/1994
(301) 569-
Gaithersburg
Cellco Partnership DBA Verizon Wireless
08/14/1998
(301) 570-
Ashton
Verizon Maryland
02/04/1994
(301) 571-
Rockville
Verizon Maryland
02/04/1994
(301) 572-
Beltsville
Verizon Maryland
02/04/1994
(301) 573-
Hagerstown
Sprint Spectrum
11/20/1998
(301) 574-
Upper Marlboro
Verizon Maryland
02/11/1995
(301) 575-
Laurel
Us Lec Of Maryland
08/14/1998
(301) 576-
Silver Spring
Paetec Communications
08/14/1998
(301) 577-
Lanham
Verizon Maryland
02/04/1994
(301) 578-
Silver Spring
Verizon Maryland
10/15/1996
(301) 579-
Brandywine
Verizon Maryland
02/04/1994
(301) 580-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 581-
Rockville
Verizon Maryland
04/01/1997
(301) 582-
Hagerstown
Verizon Maryland
02/04/1994
(301) 583-
Hyattsville
Verizon Maryland
01/25/1998
(301) 584-
Silver Spring
Baltimore-washington Telephone (bwt)
06/13/2000
(301) 585-
Silver Spring
Verizon Maryland
02/04/1994
(301) 586-
Beltsville
Verizon Maryland
01/10/1996
(301) 587-
Silver Spring
Verizon Maryland
02/04/1994
(301) 588-
Silver Spring
Verizon Maryland
02/04/1994
(301) 589-
Silver Spring
Verizon Maryland
02/04/1994
(301) 590-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 591-
Gaithersburg
Paetec Communications
08/14/1998
(301) 592-
Silver Spring
Verizon Maryland
10/11/1997
(301) 593-
Silver Spring
Verizon Maryland
02/04/1994
(301) 594-
Bethesda
Verizon Maryland
02/04/1994
(301) 595-
Beltsville
Verizon Maryland
02/04/1994
(301) 596-
Columbia
Verizon Maryland
02/04/1994
(301) 597-
Hancock
New Frontiers Telecommunications
06/13/2000
(301) 598-
Rockville
Verizon Maryland
02/04/1994
(301) 599-
Clinton
Verizon Maryland
02/04/1994
(301) 600-
Frederick
Verizon Maryland
07/06/2006
(301) 601-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 602-
Silver Spring
Cellco Partnership DBA Verizon Wireless
04/15/1996
(301) 603-
Rockville
Verizon Maryland
07/01/1996
(301) 604-
Laurel
Verizon Maryland
02/04/1994
(301) 605-
Rockville
Verizon Maryland
10/15/1996
(301) 606-
Frederick
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 607-
New Market
Verizon Maryland
02/04/1994
(301) 608-
Silver Spring
Verizon Maryland
02/04/1994
(301) 609-
La Plata
Verizon Maryland
02/04/1994
(301) 610-
Rockville
Verizon Maryland
10/15/1996
(301) 612-
Sandy Spring
Teleport Communications America
10/11/2012
(301) 613-
Beltsville
Sprint Spectrum
07/01/1996
(301) 614-
Greenbelt
Verizon Maryland
01/10/1996
(301) 615-
Greenbelt
Verizon Maryland
02/04/1994
(301) 616-
Oakland
Uscoc Of Cumberland DBA United States Cel Md
02/04/1994
(301) 617-
Laurel
Verizon Maryland
02/11/1995
(301) 618-
Hyattsville
Verizon Maryland
02/04/1994
(301) 619-
Frederick
Verizon Maryland
02/04/1994
(301) 620-
Frederick
Verizon Maryland
02/04/1994
(301) 621-
Glenn Dale
Verizon Maryland
02/04/1994
(301) 622-
Silver Spring
Verizon Maryland
02/04/1994
(301) 623-
Mount Rainier
Teleport Communications America - DC
10/11/1997
(301) 624-
Frederick
Verizon Maryland
01/10/1996
(301) 625-
Silver Spring
Verizon Maryland
01/10/1996
(301) 626-
Silver Spring
Verizon Maryland
05/18/1998
(301) 627-
Upper Marlboro
Verizon Maryland
02/04/1994
(301) 628-
Mount Rainier
Teleport Communications America - DC
01/10/1996
(301) 629-
Glenn Dale
Verizon Maryland
02/04/1994
(301) 630-
Temple Hills
Verizon Maryland
02/04/1994
(301) 631-
Frederick
Verizon Maryland
02/11/1995
(301) 632-
Waldorf
Verizon Maryland
01/10/1996
(301) 633-
Bethesda
New Cingular Wireless PCS - DC
02/11/1995
(301) 634-
Mount Rainier
Teleport Communications America - DC
10/11/1997
(301) 635-
Myersville
New Frontiers Telecommunications
06/13/2000
(301) 636-
Hyattsville
Verizon Maryland
06/13/2000
(301) 637-
Rockville
Level 3 Communications
08/14/1998
(301) 638-
Waldorf
Verizon Maryland
01/10/1996
(301) 639-
Frederick
Cellco Partnership DBA Verizon Wireless
02/11/1995
(301) 640-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 641-
Silver Spring
Cellco Partnership DBA Verizon Wireless
09/11/1994
(301) 642-
Bethesda
New Cingular Wireless PCS - DC
01/25/1998
(301) 643-
Waldorf
Cellco Partnership DBA Verizon Wireless
09/11/1994
(301) 644-
Frederick
Verizon Maryland
08/14/1998
(301) 645-
Waldorf
Verizon Maryland
02/04/1994
(301) 646-
Bethesda
New Cingular Wireless PCS - DC
01/10/1996
(301) 647-
Laurel
Verizon Maryland
01/10/1996
(301) 648-
Bethesda
New Cingular Wireless PCS - DC
02/04/1994
(301) 649-
Silver Spring
Verizon Maryland
02/04/1994
(301) 650-
Silver Spring
Verizon Maryland
02/04/1994
(301) 651-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/11/1995
(301) 652-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 653-
Waldorf
New Cingular Wireless PCS - DC
01/10/1996
(301) 654-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 655-
Bethesda
New Cingular Wireless PCS - DC
04/15/1996
(301) 656-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 657-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 658-
Sandy Spring
Teleport Communications America - DC
10/11/1997
(301) 659-
Waldorf
New Cingular Wireless PCS - DC
05/18/1998
(301) 660-
Keedysville
New Cingular Wireless PCS - DC
03/19/2004
(301) 661-
Bethesda
New Cingular Wireless PCS - DC
09/11/1994
(301) 662-
Frederick
Verizon Maryland
02/04/1994
(301) 663-
Frederick
Verizon Maryland
02/04/1994
(301) 664-
Chevy Chase
Verizon Maryland
01/10/1996
(301) 665-
Hagerstown
Verizon Maryland
01/10/1996
(301) 666-
Glenn Dale
Teleport Communications America - DC
08/14/1998
(301) 667-
Myersville
New Cingular Wireless PCS - DC
09/11/1994
(301) 668-
Frederick
Verizon Maryland
08/14/1998
(301) 669-
Suitland
Verizon Maryland
09/11/1994
(301) 670-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 671-
Hagerstown
New Frontiers Telecommunications
06/13/2000
(301) 672-
Tall Timbers
Sprint Spectrum
11/20/1998
(301) 673-
Frederick
New Frontiers Telecommunications
06/13/2000
(301) 674-
Bethesda
Sprint Spectrum
11/20/1998
(301) 675-
Silver Spring
Omnipoint Communications Cap Operations
06/13/2000
(301) 676-
Frederick
New Cingular Wireless PCS - DC
07/06/1997
(301) 677-
Glenn Dale
Teleport Communications America - DC
02/04/1994
(301) 678-
Hancock
Verizon Maryland
02/04/1994
(301) 679-
Mount Rainier
Teleport Communications America - DC
08/14/1998
(301) 680-
Silver Spring
Verizon Maryland
02/04/1994
(301) 681-
Silver Spring
Verizon Maryland
02/04/1994
(301) 682-
Frederick
Verizon Maryland
02/11/1995
(301) 683-
Mount Rainier
Teleport Communications America - DC
08/14/1998
(301) 684-
Indian Head
Teleport Communications America - DC
08/14/1998
(301) 685-
Damascus
Teleport Communications America - DC
08/14/1998
(301) 686-
Oxon Hill
Verizon Maryland
05/10/1999
(301) 687-
Frostburg
Verizon Maryland
07/04/1995
(301) 688-
Laurel
Verizon Maryland
02/04/1994
(301) 689-
Frostburg
Verizon Maryland
02/04/1994
(301) 690-
Leonardtown
Idt America Corp
05/23/2007
(301) 691-
Poolesville
Teleport Communications America - DC
08/14/1998
(301) 692-
Mount Rainier
Teleport Communications America - DC
08/14/1998
(301) 693-
Frederick
Omnipoint Communications Cap Operations
06/13/2000
(301) 694-
Frederick
Verizon Maryland
02/04/1994
(301) 695-
Frederick
Verizon Maryland
02/04/1994
(301) 696-
Frederick
Verizon Maryland
02/04/1994
(301) 697-
Cumberland
New Cingular Wireless PCS - DC
02/04/1994
(301) 698-
Frederick
Verizon Maryland
02/04/1994
(301) 699-
Hyattsville
Verizon Maryland
02/04/1994
(301) 701-
Hyattsville
Verizon Maryland
02/04/1994
(301) 702-
Temple Hills
Verizon Maryland
02/04/1994
(301) 703-
Mount Airy
Level 3 Communications
08/29/2002
(301) 704-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 705-
Waldorf
Verizon Maryland
02/04/1994
(301) 706-
Silver Spring
Cellco Partnership DBA Verizon Wireless
04/15/1996
(301) 707-
Cumberland
Uscoc Of Cumberland DBA United States Cel Md
02/04/1994
(301) 708-
Greenbelt
Cavalier Telephone Mid-atlantic
09/20/2011
(301) 709-
Greenbelt
Usa Mobility Wireless
02/04/1994
(301) 710-
Waldorf
Level 3 Communications
12/30/2005
(301) 712-
Frederick
Mci Worldcom Communications
03/27/2005
(301) 713-
Silver Spring
Verizon Maryland
02/04/1994
(301) 714-
Hagerstown
Verizon Maryland
02/04/1994
(301) 715-
Upper Marlboro
Teleport Communications America - DC
08/14/1998
(301) 716-
Beltsville
Verizon Maryland
07/01/1996
(301) 717-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 718-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 719-
Mount Rainier
Teleport Communications America - DC
08/14/1998
(301) 720-
Brandywine
Teleport Communications America - DC
08/14/1998
(301) 721-
Gaithersburg
Verizon Maryland
10/15/1996
(301) 722-
Cumberland
Verizon Maryland
02/04/1994
(301) 723-
Cumberland
Verizon Maryland
05/18/1998
(301) 724-
Cumberland
Verizon Maryland
02/04/1994
(301) 725-
Laurel
Verizon Maryland
02/04/1994
(301) 727-
Capitol Heights
Baltimore-washington Telephone (bwt)
06/13/2000
(301) 728-
Silver Spring
Omnipoint Communications Cap Operations
06/13/2000
(301) 729-
Cumberland
Verizon Maryland
02/04/1994
(301) 730-
Myersville
New Cingular Wireless PCS - DC
11/20/1998
(301) 731-
Lanham
Verizon Maryland
02/04/1994
(301) 732-
Greenbelt
Metro PCS
10/04/2011
(301) 733-
Hagerstown
Verizon Maryland
02/04/1994
(301) 734-
Silver Spring
Verizon Maryland
02/11/1995
(301) 735-
Suitland
Verizon Maryland
02/04/1994
(301) 736-
Suitland
Verizon Maryland
02/04/1994
(301) 737-
Lexington Park
Verizon Maryland
02/04/1994
(301) 738-
Rockville
Verizon Maryland
02/04/1994
(301) 739-
Hagerstown
Verizon Maryland
02/04/1994
(301) 740-
Gaithersburg
Verizon Maryland
04/22/2004
(301) 741-
Laurel
Level 3 Communications
08/14/1998
(301) 742-
Bethesda
New Cingular Wireless PCS - DC
02/04/1994
(301) 743-
Indian Head
Verizon Maryland
02/04/1994
(301) 744-
Indian Head
Verizon Maryland
10/11/1997
(301) 745-
Hagerstown
Verizon Maryland
02/04/1994
(301) 746-
Accident
Verizon Maryland
02/04/1994
(301) 747-
Mount Rainier
Teleport Communications America - DC
11/20/1998
(301) 748-
Frederick
Sprint Spectrum
04/01/1997
(301) 749-
Oxon Hill
Verizon Maryland
09/11/1994
(301) 750-
Friendsville
Core Communications
03/18/2004
(301) 751-
Waldorf
Cellco Partnership DBA Verizon Wireless
01/10/1996
(301) 752-
Waldorf
Cellco Partnership DBA Verizon Wireless
08/14/1998
(301) 753-
Oxon Hill
Verizon Maryland
02/04/1994
(301) 754-
Silver Spring
Verizon Maryland
09/11/1994
(301) 755-
Silver Spring
Mci Worldcom Communications
07/04/1995
(301) 756-
Laurel
Tw Telecom Of Maryland LLC
01/25/1998
(301) 757-
Patuxent River
Verizon Maryland
01/11/1997
(301) 758-
Silver Spring
Cellco Partnership DBA Verizon Wireless
09/11/1994
(301) 759-
Cumberland
Verizon Maryland
02/04/1994
(301) 760-
Bethesda
Level 3 Communications
02/27/2002
(301) 761-
Kensington
Level 3 Communications
02/27/2002
(301) 762-
Rockville
Verizon Maryland
02/04/1994
(301) 763-
Suitland
Verizon Maryland
02/04/1994
(301) 764-
Waldorf
Verizon Maryland
01/10/1996
(301) 765-
Bethesda
Verizon Maryland
10/15/1996
(301) 766-
Hagerstown
Verizon Maryland
04/15/1996
(301) 767-
Bethesda
Verizon Maryland
10/15/1996
(301) 768-
Cabin John
Level 3 Communications
02/27/2002
(301) 769-
Avenue
Verizon Maryland
02/04/1994
(301) 770-
Rockville
Verizon Maryland
02/04/1994
(301) 771-
Chevy Chase
Verizon Maryland
04/01/1997
(301) 772-
Hyattsville
Verizon Maryland
02/04/1994
(301) 773-
Hyattsville
Verizon Maryland
02/04/1994
(301) 774-
Ashton
Verizon Maryland
02/04/1994
(301) 775-
Silver Spring
Cellco Partnership DBA Verizon Wireless
01/10/1996
(301) 776-
Laurel
Verizon Maryland
02/04/1994
(301) 777-
Cumberland
Verizon Maryland
02/04/1994
(301) 778-
Capitol Heights
Mci Worldcom Communications
07/04/1995
(301) 779-
Hyattsville
Verizon Maryland
02/04/1994
(301) 780-
Upper Marlboro
Verizon Maryland
01/25/1998
(301) 781-
Frostburg
New Frontiers Telecommunications
06/13/2000
(301) 782-
Brandywine
Verizon Maryland
02/04/1994
(301) 783-
Cumberland
New Frontiers Telecommunications
06/13/2000
(301) 784-
Cumberland
Verizon Maryland
09/11/1994
(301) 785-
Silver Spring
Cellco Partnership DBA Verizon Wireless
08/14/1998
(301) 786-
Mccoole
Verizon Maryland
01/10/1996
(301) 787-
Silver Spring
Cellco Partnership DBA Verizon Wireless
08/14/1998
(301) 788-
Frederick
Cellco Partnership DBA Verizon Wireless
08/14/1998
(301) 789-
Hyattsville
Core Communications - PA
08/13/2002
(301) 790-
Hagerstown
Verizon Maryland
02/04/1994
(301) 791-
Hagerstown
Verizon Maryland
02/04/1994
(301) 792-
Silver Spring
Omnipoint Communications Cap Operations
06/13/2000
(301) 793-
Silver Spring
Omnipoint Communications Cap Operations
06/13/2000
(301) 794-
Lanham
Verizon Maryland
02/04/1994
(301) 795-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 796-
College Park
Verizon Maryland
06/30/2003
(301) 797-
Hagerstown
Verizon Maryland
02/04/1994
(301) 798-
New Market
Verizon Maryland
07/01/1996
(301) 799-
Keedysville
Core Communications
03/18/2004
(301) 800-
Hagerstown
Virginia PCS Alliance, L.c.
04/29/2010
(301) 801-
Silver Spring
Cellco Partnership DBA Verizon Wireless
04/15/1996
(301) 802-
Silver Spring
Cellco Partnership DBA Verizon Wireless
10/15/1996
(301) 803-
Rockville
Verizon Maryland
02/04/1994
(301) 804-
Sandy Spring
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 805-
Bowie
Verizon Maryland
02/04/1994
(301) 806-
Beltsville
Sprint Spectrum
07/01/1996
(301) 807-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 808-
Capitol Heights
Verizon Maryland
02/04/1994
(301) 809-
Bowie
Verizon Maryland
02/04/1994
(301) 810-
Monrovia
AT&T Local
08/14/1998
(301) 812-
North Beach
Verizon Maryland
07/01/1996
(301) 813-
Bethesda
Baltimore-washington Telephone (bwt)
06/30/2001
(301) 814-
Bethesda
New Cingular Wireless PCS - DC
02/04/1994
(301) 815-
Frederick
Verizon Maryland
02/04/1994
(301) 816-
Rockville
Verizon Maryland
02/04/1994
(301) 817-
Suitland
Verizon Maryland
02/04/1994
(301) 818-
Waldorf
Verizon Maryland
02/04/1994
(301) 819-
Silver Spring
Verizon Maryland
07/01/1996
(301) 820-
Gaithersburg
AT&T Local
11/20/1998
(301) 821-
Laurel
AT&T Local
08/14/1998
(301) 822-
Mount Rainier
AT&T Local
08/14/1998
(301) 823-
Mount Rainier
AT&T Local
08/14/1998
(301) 824-
Smithsburg
Verizon Maryland
02/04/1994
(301) 825-
Rockville
AT&T Local
08/14/1998
(301) 826-
Lexington Park
Verizon Maryland
02/04/1994
(301) 827-
Bethesda
Verizon Maryland
02/04/1994
(301) 828-
Bethesda
AT&T Local
08/14/1998
(301) 829-
Mount Airy
Verizon Maryland
02/04/1994
(301) 830-
Silver Spring
AT&T Local
08/14/1998
(301) 831-
Adamstown
Verizon Maryland
02/04/1994
(301) 832-
Mount Rainier
AT&T Local
08/14/1998
(301) 833-
Glenn Dale
Teleport Communications America - DC
11/11/2003
(301) 834-
Brunswick
Verizon Maryland
02/04/1994
(301) 836-
Temple Hills
Verizon Maryland
07/04/1995
(301) 837-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 838-
Rockville
Verizon Maryland
07/04/1995
(301) 839-
Oxon Hill
Verizon Maryland
02/04/1994
(301) 840-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 841-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 842-
Clear Spring
Verizon Maryland
02/04/1994
(301) 843-
Waldorf
Verizon Maryland
02/04/1994
(301) 844-
Mount Rainier
Sprint Spectrum
10/04/2011
(301) 845-
Walkersville
Verizon Maryland
02/04/1994
(301) 846-
Frederick
Verizon Maryland
02/04/1994
(301) 847-
Beltsville
Verizon Maryland
02/04/1994
(301) 848-
Waldorf
Cellco Partnership DBA Verizon Wireless
08/14/1998
(301) 849-
Oakland
New Frontiers Telecommunications
06/13/2000
(301) 850-
Glenn Dale
Level 3 Communications
08/04/2002
(301) 851-
Hyattsville
Verizon Maryland
02/04/1994
(301) 852-
Hyattsville
Verizon Maryland
02/04/1994
(301) 853-
Hyattsville
Verizon Maryland
02/04/1994
(301) 854-
Columbia
Verizon Maryland
02/04/1994
(301) 855-
Upper Marlboro
Verizon Maryland
02/04/1994
(301) 856-
Clinton
Verizon Maryland
02/04/1994
(301) 857-
Clear Spring
Core Communications
07/12/2002
(301) 858-
Glenn Dale
Verizon Maryland
02/04/1994
(301) 859-
Oxon Hill
Level 3 Communications
01/09/2002
(301) 860-
Bowie
Verizon Maryland
08/20/2000
(301) 861-
Waldorf
Level 3 Communications
08/14/1998
(301) 862-
Lexington Park
Verizon Maryland
02/04/1994
(301) 863-
Lexington Park
Verizon Maryland
02/04/1994
(301) 864-
Hyattsville
Verizon Maryland
02/04/1994
(301) 865-
New Market
Verizon Maryland
02/04/1994
(301) 866-
Lexington Park
Verizon Maryland
10/15/1996
(301) 867-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 868-
Clinton
Verizon Maryland
02/04/1994
(301) 869-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 870-
Waldorf
Verizon Maryland
02/04/1994
(301) 871-
Rockville
Verizon Maryland
02/04/1994
(301) 872-
Ridge
Verizon Maryland
02/04/1994
(301) 873-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 874-
Adamstown
Verizon Maryland
02/04/1994
(301) 875-
Laurel
Cellco Partnership DBA Verizon Wireless
03/27/2005
(301) 876-
Cumberland
Level 3 Communications
05/02/2002
(301) 877-
Clinton
Verizon Maryland
01/11/1997
(301) 878-
Baltimore
Verizon Maryland
01/10/1996
(301) 879-
Silver Spring
Verizon Maryland
02/11/1995
(301) 880-
Tall Timbers
Level 3 Communications
08/14/1998
(301) 881-
Rockville
Verizon Maryland
02/04/1994
(301) 882-
New Market
Core Communications
03/18/2004
(301) 883-
Hyattsville
Verizon Maryland
09/11/1994
(301) 884-
Mechanicsville
Verizon Maryland
02/04/1994
(301) 885-
Waldorf
Verizon Maryland
02/11/1995
(301) 886-
Laurel
Verizon Maryland
07/04/1995
(301) 887-
Hyattsville
Verizon Maryland
02/11/1995
(301) 888-
Brandywine
Verizon Maryland
02/04/1994
(301) 889-
Glenn Dale
Verizon Maryland
01/10/1996
(301) 890-
Beltsville
Verizon Maryland
02/04/1994
(301) 891-
Hyattsville
Verizon Maryland
02/04/1994
(301) 892-
Hyattsville
Verizon Maryland
03/11/2005
(301) 893-
Waldorf
Verizon Maryland
01/10/1996
(301) 894-
Temple Hills
Verizon Maryland
02/04/1994
(301) 895-
Grantsville
Verizon Maryland
02/04/1994
(301) 896-
Rockville
Verizon Maryland
01/10/1996
(301) 897-
Rockville
Verizon Maryland
02/04/1994
(301) 898-
Walkersville
Verizon Maryland
02/04/1994
(301) 899-
Temple Hills
Verizon Maryland
02/04/1994
(301) 900-
Frederick
Verizon Maryland
10/22/2013
(301) 901-
Greenbelt
Verizon Maryland
02/04/1994
(301) 902-
Beltsville
Verizon Maryland
02/04/1994
(301) 903-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 904-
Leonardtown
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 905-
Silver Spring
Verizon Maryland
02/04/1994
(301) 906-
Bethesda
New Cingular Wireless PCS - DC
10/15/1996
(301) 907-
Chevy Chase
Verizon Maryland
05/18/1998
(301) 908-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 909-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 910-
Bethesda
New Cingular Wireless PCS - DC
02/04/1994
(301) 912-
Odenton
Verizon Maryland
02/04/1994
(301) 913-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 914-
Mc Henry
Mountain Communications DBA Procom
12/27/2012
(301) 915-
Bethesda
Starpower Communications
11/20/1998
(301) 916-
Poolesville
Verizon Maryland
02/04/1994
(301) 917-
Rockville
Starpower Communications
08/14/1998
(301) 918-
Lanham
Verizon Maryland
02/04/1994
(301) 919-
Bethesda
New Cingular Wireless PCS - DC
02/04/1994
(301) 920-
Silver Spring
Starpower Communications
08/14/1998
(301) 921-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 922-
Silver Spring
Cellco Partnership DBA Verizon Wireless
04/15/1996
(301) 923-
Hyattsville
Verizon Maryland
09/11/1994
(301) 924-
Ashton
Verizon Maryland
02/04/1994
(301) 925-
Hyattsville
Verizon Maryland
02/04/1994
(301) 926-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 927-
Hyattsville
Verizon Maryland
02/04/1994
(301) 928-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/11/1995
(301) 929-
Kensington
Verizon Maryland
02/04/1994
(301) 930-
Silver Spring
Verizon Maryland
02/04/1994
(301) 931-
Beltsville
Verizon Maryland
07/04/1995
(301) 932-
La Plata
Verizon Maryland
02/04/1994
(301) 933-
Kensington
Verizon Maryland
02/04/1994
(301) 934-
La Plata
Verizon Maryland
02/04/1994
(301) 935-
Hyattsville
Verizon Maryland
02/04/1994
(301) 937-
Beltsville
Verizon Maryland
02/04/1994
(301) 938-
Silver Spring
Cellco Partnership DBA Verizon Wireless
04/15/1996
(301) 939-
Laurel
Verizon Maryland
04/15/1996
(301) 940-
Silver Spring
Verizon Maryland
02/04/1994
(301) 941-
Chevy Chase
Verizon Maryland
02/11/1995
(301) 942-
Kensington
Verizon Maryland
02/04/1994
(301) 943-
Silver Spring
Cellco Partnership DBA Verizon Wireless
04/15/1996
(301) 944-
Gaithersburg
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 945-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 946-
Kensington
Verizon Maryland
02/04/1994
(301) 947-
Gaithersburg
Verizon Maryland
04/15/1996
(301) 948-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 949-
Kensington
Verizon Maryland
02/04/1994
(301) 951-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 952-
Upper Marlboro
Verizon Maryland
02/04/1994
(301) 953-
Laurel
Verizon Maryland
02/04/1994
(301) 955-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 956-
Rockville
Verizon Maryland
05/22/2002
(301) 957-
Laurel
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 960-
Silver Spring
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 961-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 962-
Kensington
Verizon Maryland
01/11/1997
(301) 963-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 964-
Myersville
New Cingular Wireless PCS - DC
04/15/1996
(301) 965-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 966-
Hyattsville
Mcimetro Access Transmission Services LLC
11/20/1998
(301) 967-
Suitland
Verizon Maryland
02/04/1994
(301) 968-
Bethesda
Mci Worldcom Communications
07/04/1995
(301) 969-
Brunswick
Comcast Phone Of Northern Maryland
03/06/2007
(301) 970-
Annapolis
Verizon Maryland
02/04/1994
(301) 971-
Oxon Hill
Starpower Communications
11/20/1998
(301) 972-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 973-
Glenn Dale
Verizon Maryland
02/04/1994
(301) 974-
Laurel
Starpower Communications
11/20/1998
(301) 975-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 976-
Baltimore-washington Telephone (bwt)
10/17/2005
(301) 977-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 978-
Gaithersburg
Verizon Maryland
10/11/1997
(301) 979-
Gaithersburg
Verizon Maryland
04/15/1996
(301) 980-
Silver Spring
Cellco Partnership DBA Verizon Wireless
02/04/1994
(301) 981-
Mount Rainier
Tw Telecom Of Maryland LLC
02/04/1994
(301) 982-
Greenbelt
Verizon Maryland
02/04/1994
(301) 983-
Bethesda
Verizon Maryland
02/04/1994
(301) 984-
Rockville
Verizon Maryland
02/04/1994
(301) 985-
Hyattsville
Verizon Maryland
02/04/1994
(301) 986-
Chevy Chase
Verizon Maryland
02/04/1994
(301) 987-
Gaithersburg
Verizon Maryland
10/11/1997
(301) 988-
Hagerstown
Uscoc Of Cumberland DBA United States Cel Md
07/06/1997
(301) 989-
Silver Spring
Verizon Maryland
02/04/1994
(301) 990-
Gaithersburg
Verizon Maryland
02/04/1994
(301) 991-
Hagerstown
Sprint Spectrum
04/15/1996
(301) 992-
Hagerstown
Sprint Spectrum
10/11/1997
(301) 993-
Greenbelt
Verizon Maryland
11/20/1998
(301) 994-
Valley Lee
Verizon Maryland
02/04/1994
(301) 995-
Patuxent River
Verizon Maryland
08/14/1998
(301) 996-
Beltsville
Sprint Spectrum
01/10/1996
(301) 997-
Leonardtown
Verizon Maryland
01/25/1998
(301) 998-
Rockville
Verizon Maryland
01/10/1996

Heavily Reported Numbers

Phone complaint data powered by CallerCenter.com


Sources: North American Numbering Plan Administration (NANPA), telecom providers, and the U.S. Census Bureau.