Phone
Instant Phone Lookup

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

650 Area Code

About Area Code 650

State: California
Major City: San Mateo
Timezone: Pacific (10:22am)
Short URL: allareacodes.com/650
Download: Download this data

Area Code 650 Map

  • Belmont, CA
  • Burlingame, CA
  • Daly City, CA
  • East Palo Alto, CA
  • Foster City, CA
  • Los Altos, CA
  • Menlo Park, CA
  • Millbrae, CA
  • Mountain View, CA
  • Pacifica, CA
  • Palo Alto, CA
  • Redwood City, CA
  • San Bruno, CA
  • San Carlos, CA
  • San Mateo, CA
  • South San Francisco, CA

More About Area Code 650

Area code 650 was first put in service August 2, 1997. Currently, the largest city it serves is San Mateo, CA, and it overlaps coverage areas with area code .

Overview of Active Prefixes

Assigned to Carrier

Usage

Carriers

Active Phone Number Prefixes

Prefix
Usage
Primary City
Carrier
Introduced
Landline
San Mateo
O1 Communications
Introduced 07/06/1997
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 06/30/2001
Wireless
San Mateo
The Telephone Connection Local Services
Introduced 03/03/2001
Landline
San Francisco
Tw Telecom Of California Lp
Introduced 05/10/1999
Wireless
San Bruno
Usa Mobility Wireless
Introduced 08/14/1998
Landline
Woodside
Mpower Communications Corp
Introduced 02/27/1999
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
Landline
San Jose
U.s. Telepacific Corp.
Introduced 05/10/1999
Landline
Mountain View
Pacific Bell
Introduced 05/10/1999
Landline
San Mateo
Pacific Bell
Introduced 05/10/1999
Landline
Palo Alto
Pacific Bell
Introduced 05/10/1999
Landline
Mountain View
Mci Worldcom Communications, Ca
Introduced 02/15/2007
Landline
Mountain View
Global Crossing Local Services-ca
Introduced 05/10/1999
Landline
Redwood City
Pacific Bell
Introduced 05/10/1999
Wireless
San Mateo
Usa Mobility Wireless
Introduced 08/14/1998
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 08/14/1998
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 08/14/1998
Wireless
San Mateo
American Messaging (am)
Introduced 08/14/1998
Wireless
Redwood City
American Messaging Services
Introduced 08/14/1998
Wireless
San Mateo
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Palo Alto
Mpower Communications Corp
Introduced 07/06/1997
Wireless
Mountain View
New Cingular Wireless PCS
Introduced 11/20/1998
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Mci Worldcom Communications, Ca
Introduced 07/06/1997
Landline
San Mateo
Xo California
Introduced 08/14/1998
Landline
San Bruno
Xo California
Introduced 08/14/1998
Landline
Fremont
Xo California
Introduced 08/14/1998
Landline
Fremont
Xo California
Introduced 08/14/1998
Landline
Millbrae
Xo California
Introduced 08/14/1998
Landline
San Carlos
Xo California
Introduced 08/14/1998
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Brooks Fiber Communications Of California
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Mci Worldcom Communications, Ca
Introduced 07/06/1997
Landline
Millbrae
Pac - West Telecomm
Introduced 08/14/1998
Landline
San Mateo
Pac - West Telecomm
Introduced 08/14/1998
Landline
Redwood City
Level 3 Communications
Introduced 08/14/1998
Landline
San Mateo
Level 3 Communications
Introduced 08/14/1998
Landline
San Bruno
U.s. Telepacific Corp.
Introduced 02/27/1999
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Wireless
Palo Alto
American Messaging Services
Introduced 11/20/1998
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 06/13/2000
Landline
Redwood City
Pac - West Telecomm
Introduced 07/22/1999
Landline
Palo Alto
Pacific Bell
Introduced 07/22/1999
Landline
Palo Alto
Peerless Network Of California
Introduced 04/13/2012
Landline
Mountain View
Mci Worldcom Communications, Ca
Introduced 04/27/2004
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 02/27/1999
Wireless
San Bruno
American Messaging (am)
Introduced 07/22/1999
Landline
Redwood City
Global Crossing Local Services-ca
Introduced 07/22/1999
Landline
Palo Alto
Teleport Communications Group - San Francisco
Introduced 09/13/2011
Landline
Millbrae
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
AT&T Local
Introduced 11/20/1998
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Pescadero
Level 3 Communications
Introduced 11/20/1998
Landline
Moss Beach
Mci Worldcom Communications, Ca
Introduced 07/22/1999
Landline
San Carlos
AT&T Local
Introduced 02/27/1999
Landline
Mountain View
AT&T Local
Introduced 08/14/1998
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Francisco
Level 3 Communications
Introduced 11/20/1998
Landline
Pescadero
Xo California
Introduced 07/22/1999
Wireless
Palo Alto
Cellco Partnership DBA Verizon Wireless
Introduced 07/22/1999
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 11/20/1998
Wireless
San Francisco
Metro PCS
Introduced 08/22/2001
Landline
Fremont
Xo California
Introduced 08/19/2013
Landline
San Bruno
Astound Broadband
Introduced 10/13/1999
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 07/22/1999
Landline
Woodside
Xo California
Introduced 07/22/1999
Landline
Half Moon Bay
Tw Telecom Of California Lp
Introduced 07/22/1999
Wireless
Redwood City
33 Wireless Inc.
Introduced 11/20/1998
Wireless
San Mateo
T-mobile Usa
Introduced 12/27/2001
Wireless
Mountain View
Cellco Partnership DBA Verizon Wireless
Introduced 07/22/1999
Wireless
Mountain View
Sprint Spectrum L.p.
Introduced 05/10/1999
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 07/22/1999
Landline
Mountain View
Astound Broadband
Introduced 10/13/1999
Wireless
Palo Alto
T-mobile Usa
Introduced 12/27/2001
Landline
Half Moon Bay
Pac - West Telecomm
Introduced 07/22/1999
Landline
Palo Alto
Bandwidth.com Clec
Introduced 10/21/2013
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Level 3 Communications
Introduced 11/20/1998
Landline
Palo Alto
Pacific Bell
Introduced 01/14/2000
Landline
Pacifica
Metro PCS
Introduced 08/22/2001
Wireless
San Bruno
Cellco Partnership DBA Verizon Wireless
Introduced 07/22/1999
Landline
San Mateo
Broadwing Communications
Introduced 11/20/1998
Landline
San Mateo
Pacific Bell
Introduced 11/20/1998
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 07/22/1999
Landline
Pescadero
Tw Telecom Of California Lp
Introduced 07/22/1999
Landline
Redwood City
Pacific Bell
Introduced 11/20/1998
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 09/18/2012
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Wireless
Millbrae
New Cingular Wireless PCS
Introduced 10/13/1999
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 10/13/1999
Wireless
Los Altos
T-mobile Usa
Introduced 09/19/2002
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Wireless
Millbrae
T-mobile Usa
Introduced 12/27/2001
Landline
Palo Alto
Pacific Bell
Introduced 12/23/2010
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 10/13/1999
Landline
Mountain View
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Wireless
Mountain View
Usa Mobility Wireless
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
Landline
Sunnyvale
Allegiance Telecom
Introduced 02/27/1999
Landline
Palo Alto
Pacific Bell
Introduced 11/20/1998
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 11/20/1998
Landline
Palo Alto
Broadwing Communications
Introduced 11/20/1998
Landline
Woodside
Pac - West Telecomm
Introduced 11/20/1998
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Pescadero
O1 Communications
Introduced 07/22/1999
Wireless
San Carlos
Cellco Partnership DBA Verizon Wireless
Introduced 05/10/1999
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 05/10/1999
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 05/10/1999
Landline
San Francisco
Global Crossing Local Services-ca
Introduced 05/10/1999
Landline
Palo Alto
Global Crossing Local Services-ca
Introduced 05/10/1999
Landline
Palo Alto
Level 3 Communications
Introduced 11/20/1998
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Pacifica
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 11/20/1998
Landline
San Mateo
Pacific Bell
Introduced 08/14/1998
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
Pacifica
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pac - West Telecomm
Introduced 05/10/1999
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Allegiance Telecom
Introduced 02/27/1999
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Wireless
Palo Alto
American Messaging (am)
Introduced 07/22/1999
Wireless
San Mateo
Usa Mobility Wireless
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Wireless
Redwood City
American Messaging (am)
Introduced 07/22/1999
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Global Crossing Local Services-ca
Introduced 02/27/1999
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Wireless
Palo Alto
Cellco Partnership DBA Verizon Wireless
Introduced 11/29/2001
Landline
Redwood City
Pacific Bell
Introduced 03/03/2001
Landline
San Jose
Teleport Communications Group - San Francisco
Introduced 10/13/1999
Landline
Palo Alto
Teleport Communications Group - San Francisco
Introduced 10/13/1999
Landline
Redwood City
Teleport Communications Group - San Francisco
Introduced 10/13/1999
Landline
San Jose
Teleport Communications Group - San Francisco
Introduced 10/13/1999
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 03/03/2001
Landline
Palo Alto
Mcimetro Access Transmission Services LLC
Introduced 08/14/1998
Landline
San Mateo
Mcimetro Access Transmission Services LLC
Introduced 08/14/1998
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Tw Telecom Of California Lp
Introduced 08/14/1998
Landline
San Francisco
Tw Telecom Of California Lp
Introduced 08/14/1998
Landline
San Mateo
Tw Telecom Of California Lp
Introduced 08/14/1998
Landline
San Carlos
Tw Telecom Of California Lp
Introduced 08/14/1998
Landline
Redwood City
Tw Telecom Of California Lp
Introduced 08/14/1998
Landline
Mountain View
T-mobile Usa
Introduced 08/14/1998
Landline
Los Altos
O1 Communications
Introduced 05/10/1999
Landline
Redwood City
O1 Communications
Introduced 06/30/2001
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Allegiance Telecom
Introduced 02/27/1999
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Wireless
Mountain View
American Messaging Services
Introduced 01/14/2000
Wireless
San Mateo
American Messaging Services
Introduced 08/14/1998
Landline
San Francisco
U.s. Telepacific Corp.
Introduced 10/11/1997
Landline
San Carlos
Allegiance Telecom
Introduced 02/27/1999
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Francisco
Mpower Communications Corp
Introduced 10/11/1997
Landline
San Jose
U.s. Telepacific Corp.
Introduced 10/11/1997
Landline
La Honda
Level 3 Communications
Introduced 10/13/1999
Landline
Redwood City
U.s. Telepacific Corp.
Introduced 07/22/1999
Wireless
Palo Alto
Cellco Partnership DBA Verizon Wireless
Introduced 04/19/2013
Landline
Redwood City
Pac - West Telecomm
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Landline
Mountain View
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Landline
Palo Alto
Mci Worldcom Communications, Ca
Introduced 12/27/2006
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Mci Worldcom Communications, Ca
Introduced 07/06/1997
Wireless
San Mateo
T-mobile Usa
Introduced 12/27/2001
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Allegiance Telecom
Introduced 10/13/1999
Landline
Woodside
U.s. Telepacific Corp.
Introduced 10/13/1999
Landline
San Mateo
Bandwidth.com Clec
Introduced 03/03/2014
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 10/18/2001
Wireless
Half Moon Bay
T-mobile Usa
Introduced 09/19/2002
Landline
Millbrae
U.s. Telepacific Corp.
Introduced 05/10/1999
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 11/20/1998
Wireless
San Mateo
T-mobile Usa
Introduced 07/22/2013
Landline
Woodside
O1 Communications
Introduced 04/23/2001
Landline
San Francisco
Allegiance Telecom
Introduced 10/31/2000
Wireless
Mountain View
New Cingular Wireless PCS
Introduced 01/28/2002
Landline
San Francisco
T-mobile Usa
Introduced 05/10/1999
Landline
San Francisco
AT&T Local
Introduced 11/20/1998
Landline
San Carlos
Global Crossing Local Services-ca
Introduced 05/10/1999
Wireless
Redwood City
New Cingular Wireless PCS
Introduced 01/28/2002
Wireless
Millbrae
New Cingular Wireless PCS
Introduced 05/10/1999
Landline
Pescadero
Pac - West Telecomm
Introduced 05/10/1999
Landline
San Mateo
Astound Broadband
Introduced 10/13/1999
Landline
Palo Alto
Pacific Bell
Introduced 11/20/1998
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 01/25/1998
Landline
San Francisco
Pacific Bell
Introduced 11/20/1998
Landline
San Bruno
Pacific Bell
Introduced 01/14/2000
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 04/23/2001
Landline
Los Altos
Allegiance Telecom
Introduced 02/27/1999
Landline
Palo Alto
Pacific Bell
Introduced 01/25/1998
Landline
San Jose
Mpower Communications Corp
Introduced 10/11/1997
Landline
Los Altos
Broadwing Communications
Introduced 02/27/1999
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 01/14/2000
Landline
Fremont
Xo California
Introduced 05/18/1998
Landline
San Mateo
Cellco Partnership DBA Verizon Wireless
Introduced 06/13/2000
Landline
Half Moon Bay
U.s. Telepacific Corp.
Introduced 08/20/2000
Landline
Redwood City
Brooks Fiber Communications Of California
Introduced 07/06/1997
Landline
Redwood City
Mci Worldcom Communications, Ca
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/25/1998
Landline
Palo Alto
Pacific Bell
Introduced 06/13/2000
Landline
San Carlos
Pacific Bell
Introduced 08/20/2000
Landline
La Honda
U.s. Telepacific Corp.
Introduced 08/20/2000
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 02/27/1999
Landline
San Carlos
Level 3 Communications
Introduced 10/13/1999
Wireless
Millbrae
New Cingular Wireless PCS
Introduced 01/28/2002
Landline
San Bruno
Broadwing Communications
Introduced 03/03/2001
Wireless
Mountain View
New Cingular Wireless PCS
Introduced 01/28/2002
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
Wireless
San Carlos
American Messaging Services
Introduced 08/14/1998
Landline
Redwood City
Mpower Communications Corp
Introduced 10/11/1997
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Level 3 Communications
Introduced 07/22/1999
Landline
Pacifica
U.s. Telepacific Corp.
Introduced 01/14/2000
Landline
San Carlos
U.s. Telepacific Corp.
Introduced 01/14/2000
Wireless
Los Altos
Metro PCS
Introduced 09/21/2001
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Palo Alto
Comcast Phone Of California
Introduced 08/04/2005
Landline
San Mateo
Pacific Bell
Introduced 11/20/1998
Landline
San Mateo
Pac - West Telecomm
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 10/31/2000
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Woodside
Pacific Bell
Introduced 07/06/1997
Landline
Woodside
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
San Mateo
Mpower Communications Corp
Introduced 07/06/1997
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
San Bruno
Brooks Fiber Communications Of California
Introduced 10/11/1997
Landline
Moss Beach
U.s. Telepacific Corp.
Introduced 08/20/2000
Wireless
Mountain View
Sprint Spectrum L.p.
Introduced 08/20/2000
Landline
Pescadero
U.s. Telepacific Corp.
Introduced 08/20/2000
Wireless
San Mateo
T-mobile Usa
Introduced 05/18/1998
Landline
Redwood City
Pacific Bell
Introduced 08/20/2000
Landline
San Jose
U.s. Telepacific Corp.
Introduced 02/27/1999
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 10/13/1999
Landline
Mountain View
North County Communications Corp.
Introduced 01/14/2000
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 08/14/1998
Landline
San Carlos
Pacific Bell
Introduced 08/14/1998
Landline
Millbrae
Pacific Bell
Introduced 08/14/1998
Landline
San Bruno
Pacific Bell
Introduced 08/14/1998
Landline
San Mateo
Pacific Bell
Introduced 08/14/1998
Landline
Redwood City
Pacific Bell
Introduced 08/14/1998
Landline
Pacifica
Pacific Bell
Introduced 08/14/1998
Landline
San Mateo
Pacific Bell
Introduced 08/14/1998
Landline
Los Altos
Pacific Bell
Introduced 08/14/1998
Landline
Half Moon Bay
Pacific Bell
Introduced 08/14/1998
Landline
Palo Alto
Pacific Bell
Introduced 08/14/1998
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Moss Beach
Pacific Bell
Introduced 08/14/1998
Landline
Mountain View
Pacific Bell
Introduced 08/14/1998
Landline
Palo Alto
Pacific Bell
Introduced 08/14/1998
Landline
Palo Alto
Pacific Bell
Introduced 08/14/1998
Landline
Mountain View
Pacific Bell
Introduced 08/14/1998
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 01/14/2000
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/14/2000
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 05/18/1998
Landline
San Mateo
Teleport Communications Group - San Francisco
Introduced 10/11/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
Landline
San Carlos
Broadwing Communications
Introduced 08/20/2000
Landline
Redwood City
Broadwing Communications
Introduced 08/20/2000
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pac - West Telecomm
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Utility Telephone
Introduced 10/04/2008
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 06/12/2012
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Allegiance Telecom
Introduced 02/27/1999
Landline
San Carlos
Pacific Bell
Introduced 11/20/1998
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Wireless
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 11/20/1998
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pac - West Telecomm
Introduced 07/06/1997
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
Landline
San Carlos
Pacific Bell
Introduced 11/20/1998
Landline
Palo Alto
Pacific Bell
Introduced 11/20/1998
Landline
San Carlos
Pacific Bell
Introduced 11/20/1998
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
Landline
San Bruno
Pacific Bell
Introduced 11/20/1998
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
Landline
San Mateo
Pacific Bell
Introduced 11/20/1998
Landline
San Carlos
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Wireless
Palo Alto
Metro PCS
Introduced 08/22/2001
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Francisco
Allegiance Telecom
Introduced 02/27/1999
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Wireless
San Mateo
American Messaging (am)
Introduced 07/22/1999
Landline
Mountain View
Broadwing Communications
Introduced 08/20/2000
Wireless
San Mateo
Sprint Spectrum L.p.
Introduced 07/22/1999
Landline
Palo Alto
Pac - West Telecomm
Introduced 01/25/1998
Landline
San Mateo
Teleport Communications Group - San Francisco
Introduced 02/27/1999
Wireless
Palo Alto
T-mobile Usa
Introduced 10/31/2000
Landline
San Francisco
Allegiance Telecom
Introduced 02/27/1999
Landline
Redwood City
Pac - West Telecomm
Introduced 05/18/1998
Landline
Millbrae
Mci Worldcom Communications, Ca
Introduced 07/06/1997
Landline
Millbrae
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Mci Worldcom Communications, Ca
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Level 3 Communications
Introduced 04/07/2014
Landline
La Honda
O1 Communications
Introduced 03/22/2001
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 06/12/2012
Wireless
Mountain View
Metro PCS
Introduced 09/21/2001
Wireless
Redwood City
Sprint Spectrum L.p.
Introduced 08/20/2000
Landline
La Honda
Sbc Internet Services
Introduced 12/14/2009
Landline
S San Fran
Utility Telephone
Introduced 03/07/2005
Wireless
San Mateo
Cellco Partnership DBA Verizon Wireless
Introduced 05/10/1999
Landline
Redwood City
Astound Broadband
Introduced 10/13/1999
Landline
Palo Alto
O1 Communications
Introduced 05/17/2001
Wireless
Palo Alto
The Telephone Connection Local Services
Introduced 10/31/2000
Wireless
Woodside
Sprint Spectrum L.p.
Introduced 10/31/2000
Landline
Millbrae
Pac - West Telecomm
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Landline
Palo Alto
Mci Worldcom Communications, Ca
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
Palo Alto
AT&T Local
Introduced 05/18/1998
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Millbrae
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Broadwing Communications
Introduced 11/20/1998
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
Landline
Millbrae
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 10/13/1999
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 11/20/1998
Landline
Half Moon Bay
Pacific Bell
Introduced 07/06/1997
Landline
Half Moon Bay
Allegiance Telecom
Introduced 02/27/1999
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 10/13/1999
Landline
Redwood City
Xo California
Introduced 01/14/2000
Landline
Moss Beach
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
Moss Beach
Allegiance Telecom
Introduced 02/27/1999
Landline
Half Moon Bay
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Landline
Palo Alto
Level 3 Communications
Introduced 07/22/1999
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 06/13/2000
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
Landline
Half Moon Bay
Pacific Bell
Introduced 07/06/1997
Unknown
Bandwidth.com Clec
Introduced 06/03/2014
Landline
Moss Beach
Pacific Bell
Introduced 07/06/1997
Landline
Half Moon Bay
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
San Carlos
Cellco Partnership DBA Verizon Wireless
Introduced 01/14/2000
Landline
San Francisco
Astound Broadband
Introduced 01/14/2000
Landline
Millbrae
Cellco Partnership DBA Verizon Wireless
Introduced 01/14/2000
Landline
San Francisco
Allegiance Telecom
Introduced 02/27/1999
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
Pacifica
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 08/20/2000
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/25/1998
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Wireless
Redwood City
New Cingular Wireless PCS
Introduced 08/20/2000
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
La Honda
Pacific Bell
Introduced 07/06/1997
Landline
La Honda
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
La Honda
Allegiance Telecom
Introduced 02/27/1999
Landline
Palo Alto
Pacific Bell
Introduced 05/10/1999
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Wireless
San Mateo
Cellco Partnership DBA Verizon Wireless
Introduced 08/20/2000
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
Pacific Bell
Introduced 05/18/1998
Landline
San Francisco
Level 3 Communications
Introduced 05/18/1998
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
Landline
San Carlos
Brooks Fiber Communications Of California
Introduced 08/14/1998
Wireless
Redwood City
Metro PCS
Introduced 09/21/2001
Wireless
San Mateo
Cellco Partnership DBA Verizon Wireless
Introduced 11/29/2001
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 08/20/2000
Landline
Millbrae
Pacific Bell
Introduced 08/14/1998
Landline
Redwood City
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 10/31/2000
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Mountain View
Cellco Partnership DBA Verizon Wireless
Introduced 03/03/2001
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
La Honda
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 07/06/1997
Landline
Palo Alto
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 07/22/1999
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 01/06/2012
Landline
San Carlos
Teleport Communications Group - San Francisco
Introduced 07/06/1997
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 08/21/2002
Landline
San Bruno
Pacific Bell
Introduced 11/20/1998
Landline
San Jose
U.s. Telepacific Corp.
Introduced 05/10/1999
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
Sunnyvale
Brooks Fiber Communications Of California
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 08/14/1998
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 10/13/1999
Wireless
Los Altos
New Cingular Wireless PCS
Introduced 08/20/2000
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 08/20/2000
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Carlos
Level 3 Communications
Introduced 01/25/2001
Landline
San Carlos
Mpower Communications Corp
Introduced 10/11/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Wireless
San Bruno
Metro PCS
Introduced 09/21/2001
Landline
San Bruno
O1 Communications
Introduced 01/25/2001
Landline
San Bruno
Pacific Bell
Introduced 06/13/2000
Landline
Palo Alto
Pacific Bell
Introduced 06/13/2000
Landline
Redwood City
Pacific Bell
Introduced 06/13/2000
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Woodside
Allegiance Telecom
Introduced 02/27/1999
Landline
Woodside
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Pescadero
Broadwing Communications
Introduced 11/20/1998
Wireless
Mountain View
T-mobile Usa
Introduced 09/19/2002
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 01/14/2000
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/14/2000
Landline
Mountain View
Pacific Bell
Introduced 08/20/2000
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Redwood City
New Cingular Wireless PCS
Introduced 02/27/1999
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pac - West Telecomm
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Pescadero
Pacific Bell
Introduced 07/06/1997
Landline
Pescadero
Teleport Communications Group - San Francisco
Introduced 02/27/1999
Landline
Pescadero
Allegiance Telecom
Introduced 02/27/1999
Landline
Los Altos
Pac - West Telecomm
Introduced 11/20/1998
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
Landline
Half Moon Bay
O1 Communications
Introduced 03/01/2001
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 03/03/2001
Landline
Moss Beach
Pac - West Telecomm
Introduced 10/13/1999
Landline
Pacifica
Pac - West Telecomm
Introduced 10/13/1999
Landline
La Honda
Pac - West Telecomm
Introduced 10/13/1999
Landline
San Jose
O1 Communications
Introduced 05/10/1999
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
Landline
San Mateo
AT&T Local
Introduced 08/14/1998
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Wireless
San Mateo
Metro PCS
Introduced 09/21/2001
Wireless
San Bruno
Cellco Partnership DBA Verizon Wireless
Introduced 03/01/2001
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 10/31/2000
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
Landline
Sunnyvale
Brooks Fiber Communications Of California
Introduced 07/06/1997
Landline
San Mateo
U.s. Telepacific Corp.
Introduced 05/10/1999
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Los Altos
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
Landline
Millbrae
Cellco Partnership DBA Verizon Wireless
Introduced 08/14/1998
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Los Altos
Comcast Phone Of California
Introduced 07/06/1997
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 10/31/2000
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pac - West Telecomm
Introduced 05/18/1998
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Xo California
Introduced 08/14/1998
Landline
Pacifica
O1 Communications
Introduced 06/25/2001
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
Landline
Half Moon Bay
Broadwing Communications
Introduced 06/30/2001
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Pacifica
Pacific Bell
Introduced 07/06/1997
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Redwood City
Pacific Bell
Introduced 01/25/2001
Wireless
Mountain View
New Cingular Wireless PCS
Introduced 01/14/2000
Landline
Colma
Pacific Bell
Introduced 07/06/1997
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 08/23/2011

Heavily Reported Numbers

Phone complaint data powered by CallerCenter.com

Most Searched Numbers

Prefixes with the Most Subscribers