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510 Area Code

About Area Code 510

State: California
Major City: Oakland
Timezone: Pacific (9:17pm)
Short URL: allareacodes.com/510
Download: Download this data

Area Code 510 Map

  • Alameda, CA
  • Berkeley, CA
  • Castro Valley, CA
  • El Cerrito, CA
  • Fremont, CA
  • Hayward, CA
  • Newark, CA
  • Oakland, CA
  • Richmond, CA
  • San Leandro, CA
  • San Lorenzo, CA
  • San Pablo, CA
  • Union City, CA

More About Area Code 510

Area code 510 was first put in service September 2, 1991. In 1998, area code 510 was split, and some of the phone numbers had to be updated to area code 925 on that date. To avoid exhausting all possible phone numbers in this area code, relief planning has begun. Currently, the largest city it serves is Oakland, 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
Wireless
Hayward
Metro PCS
Introduced 11/12/2008
Landline
Oakland
Peerless Network Of California
Introduced 02/14/2009
Wireless
Oakland
American Messaging (am)
Introduced 02/11/1995
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 02/27/1999
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/04/1995
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/04/1995
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Hayward
Sprint Spectrum L.p.
Introduced 06/30/2001
Landline
San Francisco
Bandwidth.com Clec
Introduced 01/04/2013
Wireless
Fremont
Usa Mobility Wireless
Introduced 07/06/1997
Wireless
Oakland
T-mobile Usa
Introduced 09/19/2002
Landline
San Francisco
Mci Worldcom Communications, Ca
Introduced 04/15/1996
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Wireless
Fremont
Usa Mobility Wireless
Introduced 10/13/1999
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 04/15/1996
Wireless
Fremont
Usa Mobility Wireless
Introduced 07/04/1995
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/04/1995
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 02/08/2007
Landline
El Sobrante
Pacific Bell
Introduced 02/04/1994
Landline
El Sobrante
Pacific Bell
Introduced 02/04/1994
Wireless
Hercules
Sprint Spectrum L.p.
Introduced 10/18/2001
Landline
San Francisco
Allegiance Telecom
Introduced 07/22/1999
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Tw Telecom Of California Lp
Introduced 07/22/1999
Landline
Oakland
Pac - West Telecomm
Introduced 07/22/1999
Landline
Oakland
Pacific Bell
Introduced 07/22/1999
Wireless
Richmond
T-mobile Usa
Introduced 02/15/2007
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Mpower Communications Corp
Introduced 04/15/1996
Landline
Union City
Tw Telecom Of California Lp
Introduced 05/10/1999
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
El Sobrante
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Bandwidth.com Clec
Introduced 07/25/2011
Landline
Hercules
Pacific Bell
Introduced 02/04/1994
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 08/09/2011
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pac - West Telecomm
Introduced 10/31/2000
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Broadwing Communications
Introduced 11/20/1998
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Tw Telecom Of California Lp
Introduced 10/13/1999
Landline
San Francisco
Level 3 Communications
Introduced 09/15/2011
Landline
Richmond
Bandwidth.com Clec
Introduced 04/28/2011
Landline
Walnut Creek
O1 Communications
Introduced 06/30/2001
Landline
Fremont
Teleport Communications Group - San Francisco
Introduced 01/14/2000
Landline
Hayward
Pacific Bell
Introduced 08/20/2000
Landline
Hayward
Pacific Bell
Introduced 10/15/1996
Landline
Oakland
Comcast Phone Of California
Introduced 05/18/1998
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
El Sobrante
Pacific Bell
Introduced 02/04/1994
Landline
Alameda
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 04/15/1996
Landline
Oakland
Pacific Bell
Introduced 01/10/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Mci Worldcom Communications, Ca
Introduced 02/04/1994
Landline
Sunnyvale
Brooks Fiber Communications Of California
Introduced 04/01/1997
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Utility Telephone
Introduced 10/13/1999
Landline
Oakland
Pac - West Telecomm
Introduced 10/31/2000
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Global Crossing Local Services-ca
Introduced 06/13/2000
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pac - West Telecomm
Introduced 01/14/2000
Landline
Berkeley
Xo California
Introduced 07/22/1999
Landline
Oakland
Pac - West Telecomm
Introduced 10/15/1996
Wireless
Oakland
T-mobile Usa
Introduced 12/26/2001
Landline
El Sobrante
Allegiance Telecom
Introduced 06/30/2001
Landline
Fremont
Pacific Bell
Introduced 06/30/2001
Landline
San Francisco
Mci Worldcom Communications, Ca
Introduced 04/15/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pac - West Telecomm
Introduced 07/01/1996
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/04/1995
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 08/14/1998
Landline
Oakland
Pac - West Telecomm
Introduced 10/15/1996
Landline
Albany
Pacific Bell
Introduced 03/03/2001
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Wireless
Hayward
Sprint Spectrum L.p.
Introduced 11/04/2011
Landline
Oakland
Pac - West Telecomm
Introduced 06/13/2000
Landline
Hercules
Level 3 Communications
Introduced 06/30/2001
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Wireless
Fremont
New Cingular Wireless PCS
Introduced 12/07/2012
Wireless
Fremont
Cellco Partnership DBA Verizon Wireless
Introduced 06/30/2001
Landline
Hayward
U.s. Telepacific Corp.
Introduced 08/20/2000
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 07/04/1995
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Hayward
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Fremont
New Cingular Wireless PCS
Introduced 04/01/1997
Wireless
Hayward
New Cingular Wireless PCS
Introduced 04/15/1996
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 06/30/2001
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Hayward
American Messaging (am)
Introduced 01/14/2000
Landline
Hercules
Teleport Communications Group - San Francisco
Introduced 06/30/2001
Wireless
Hayward
Sprint Spectrum L.p.
Introduced 07/02/2007
Landline
Hayward
Broadwing Communications
Introduced 05/10/1999
Wireless
Oakland
New Cingular Wireless PCS
Introduced 01/25/1998
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
Wireless
Fremont
New Cingular Wireless PCS
Introduced 09/12/2013
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Hercules
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Richmond
Xo California
Introduced 10/13/1999
Landline
Union City
Pacific Bell
Introduced 01/14/2000
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/06/1997
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/06/1997
Landline
Hercules
Pac - West Telecomm
Introduced 03/03/2001
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 01/31/2013
Wireless
Hayward
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Hayward
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Oakland
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Oakland
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Richmond
New Cingular Wireless PCS
Introduced 01/25/1998
Landline
Fremont
Cf Communications DBA Telekenex
Introduced 01/27/2012
Landline
Oakland
Pacific Bell
Introduced 07/01/1996
Landline
Alameda
Pacific Bell
Introduced 09/11/1994
Landline
Oakland
Pacific Bell
Introduced 07/01/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 05/04/2012
Landline
Hayward
Mpower Communications Corp
Introduced 10/11/1997
Landline
Oakland
Mpower Communications Corp
Introduced 10/11/1997
Landline
Fremont
Global Crossing Local Services-ca
Introduced 01/14/2000
Landline
San Leandro
Pacific Bell
Introduced 01/25/1998
Landline
San Leandro
Pacific Bell
Introduced 04/15/1996
Wireless
Oakland
33 Wireless Inc.
Introduced 07/06/1997
Wireless
Richmond
American Messaging (am)
Introduced 01/25/1998
Landline
Oakland
Teleport Communications Group - San Francisco
Introduced 01/25/1998
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 09/11/1994
Landline
Fremont
Pacific Bell
Introduced 02/11/1995
Landline
Oakland
Global Crossing Local Services-ca
Introduced 01/14/2000
Landline
Berkeley
Pacific Bell
Introduced 11/28/2007
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Wireless
Fremont
New Cingular Wireless PCS
Introduced 07/08/2011
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 08/17/2012
Landline
Fremont
Pacific Bell
Introduced 01/25/1998
Wireless
Hayward
T-mobile Usa
Introduced 05/16/2013
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 01/14/2008
Wireless
Fremont
New Cingular Wireless PCS
Introduced 11/28/2001
Wireless
Berkeley
T-mobile Usa
Introduced 09/26/2013
Wireless
Fremont
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Richmond
New Cingular Wireless PCS
Introduced 01/25/1998
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 01/11/1997
Landline
Hayward
Peerless Network Of California
Introduced 04/13/2012
Wireless
Fremont
Level 3 Communications
Introduced 08/07/2008
Landline
Hayward
Pac - West Telecomm
Introduced 10/13/1999
Landline
Oakland
Pac - West Telecomm
Introduced 10/13/1999
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Wireless
San Francisco
T-mobile Usa
Introduced 12/26/2001
Wireless
Fremont
Sprint Spectrum L.p.
Introduced 01/14/2000
Wireless
Fremont
Sprint Spectrum L.p.
Introduced 08/20/2000
Wireless
Fremont
New Cingular Wireless PCS
Introduced 06/13/2000
Landline
Oakland
Tw Telecom Of California Lp
Introduced 05/18/1998
Landline
Oakland
Pac - West Telecomm
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 01/11/1997
Wireless
Oakland
New Cingular Wireless PCS
Introduced 10/11/1997
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 02/04/1994
Wireless
Fremont
New Cingular Wireless PCS
Introduced 10/11/1997
Wireless
Oakland
New Cingular Wireless PCS
Introduced 10/11/1997
Wireless
Oakland
New Cingular Wireless PCS
Introduced 05/18/1998
Wireless
Oakland
American Messaging (am)
Introduced 01/10/1996
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 05/18/1998
Wireless
Oakland
American Messaging (am)
Introduced 01/10/1996
Wireless
Oakland
American Messaging (am)
Introduced 04/01/1997
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 05/10/1999
Landline
Oakland
Teleport Communications Group - San Francisco
Introduced 05/18/1998
Landline
Oakland
Teleport Communications Group - San Francisco
Introduced 05/18/1998
Wireless
Fremont
T-mobile Usa
Introduced 12/26/2001
Landline
Hayward
Comcast Phone Of California
Introduced 08/28/2008
Landline
Hayward
Bandwidth.com Clec
Introduced 08/17/2012
Landline
Fremont
Xo California
Introduced 02/27/1999
Landline
Union City
Mpower Communications Corp
Introduced 10/11/1997
Landline
Fremont
Mpower Communications Corp
Introduced 10/11/1997
Landline
Fremont
Mpower Networks Services Inc.
Introduced 10/11/1997
Landline
Union City
Mci Worldcom Communications, Ca
Introduced 04/15/1996
Landline
Fremont
Pac - West Telecomm
Introduced 07/06/1997
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 07/06/1997
Landline
El Sobrante
Pacific Bell
Introduced 11/25/2009
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 07/06/1997
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Hayward
T-mobile Usa
Introduced 09/19/2001
Landline
Berkeley
North County Communications Corp.
Introduced 06/13/2000
Wireless
El Sobrante
T-mobile Usa
Introduced 09/19/2002
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Oakland
Paetec Communications
Introduced 11/07/2008
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Richmond
Cellco Partnership DBA Verizon Wireless
Introduced 03/27/2014
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 03/03/2001
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Union City
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Union City
Global Crossing Local Services-ca
Introduced 10/13/1999
Wireless
Hayward
New Cingular Wireless PCS
Introduced 11/28/2001
Landline
Oakland
Pacific Bell
Introduced 01/10/1996
Landline
Oakland
Pacific Bell
Introduced 04/15/1996
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 01/25/1998
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pac - West Telecomm
Introduced 10/31/2000
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Union City
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
American Messaging (am)
Introduced 02/04/1994
Landline
Fremont
Peerless Network Of California
Introduced 02/14/2009
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 10/15/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Richmond
Sprint Spectrum L.p.
Introduced 12/09/2011
Wireless
Oakland
American Messaging (am)
Introduced 02/04/1994
Landline
Fremont
Teleport Communications Group - San Francisco
Introduced 10/13/1999
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Fremont
Sprint Spectrum L.p.
Introduced 10/31/2000
Landline
San Leandro
Pacific Bell
Introduced 11/30/2012
Wireless
Crockett
Sprint Spectrum L.p.
Introduced 04/20/2001
Landline
San Jose
U.s. Telepacific Corp.
Introduced 01/14/2000
Landline
Oakland
Teleport Communications Group - San Francisco
Introduced 10/15/1996
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 10/15/1996
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 02/09/2010
Wireless
Hayward
New Cingular Wireless PCS
Introduced 08/21/2002
Landline
Oakland
Mpower Communications Corp
Introduced 03/03/2001
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Tw Telecom Of California Lp
Introduced 10/13/1999
Wireless
Fremont
Cellco Partnership DBA Verizon Wireless
Introduced 07/22/1999
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 01/14/2000
Landline
Hayward
Bandwidth.com Clec
Introduced 02/22/2010
Landline
Union City
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Metro PCS
Introduced 08/22/2001
Landline
San Francisco
Allegiance Telecom
Introduced 01/14/2000
Landline
Union City
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Union City
Pacific Bell
Introduced 02/04/1994
Landline
Union City
Pacific Bell
Introduced 02/11/1995
Landline
Union City
Pacific Bell
Introduced 07/01/1996
Landline
San Francisco
Allegiance Telecom
Introduced 03/03/2001
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 04/15/1996
Wireless
El Sobrante
T-mobile Usa
Introduced 09/26/2013
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 03/03/2001
Landline
Oakland
Metro PCS
Introduced 10/13/1999
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Union City
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Union City
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Union City
Teleport Communications Group - San Francisco
Introduced 04/15/1996
Landline
Fremont
Pacific Bell
Introduced 04/15/1996
Landline
Fremont
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 04/01/1997
Landline
Oakland
Mpower Communications Corp
Introduced 01/11/1997
Landline
Fremont
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
New Cingular Wireless PCS
Introduced 10/15/1996
Landline
Oakland
Xo California
Introduced 02/27/1999
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/04/1995
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/04/1995
Wireless
Oakland
American Messaging (am)
Introduced 11/21/2002
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/04/1995
Landline
Fremont
Level 3 Communications
Introduced 07/06/2010
Landline
Hayward
T-mobile Usa
Introduced 08/14/1998
Wireless
Oakland
Usa Mobility Wireless
Introduced 01/10/1996
Landline
Fremont
Bandwidth.com Clec
Introduced 09/03/2010
Wireless
Oakland
New Cingular Wireless PCS
Introduced 01/10/1996
Wireless
Oakland
New Cingular Wireless PCS
Introduced 01/10/1996
Landline
Alameda
Pacific Bell
Introduced 02/04/1994
Landline
Alameda
Pacific Bell
Introduced 02/04/1994
Landline
Alameda
Pacific Bell
Introduced 02/04/1994
Landline
Albany
Pacific Bell
Introduced 02/04/1994
Landline
Albany
Pacific Bell
Introduced 02/04/1994
Landline
Albany
Pacific Bell
Introduced 02/04/1994
Landline
Albany
Pacific Bell
Introduced 02/04/1994
Landline
Albany
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
American Messaging (am)
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 10/13/1999
Landline
Oakland
Pac - West Telecomm
Introduced 01/25/1998
Landline
Oakland
Xo California
Introduced 08/14/1998
Wireless
Berkeley
American Messaging Services
Introduced 11/20/1998
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Global Crossing Local Services-ca
Introduced 05/10/1999
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 10/13/1999
Wireless
Fremont
Cellco Partnership DBA Verizon Wireless
Introduced 06/25/2001
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Hayward
33 Wireless Inc.
Introduced 02/27/1999
Unknown
Level 3 Communications
Introduced 05/05/2014
Wireless
Fremont
Sprint Spectrum L.p.
Introduced 05/17/2001
Landline
Albany
Pacific Bell
Introduced 04/15/1996
Landline
Albany
Pacific Bell
Introduced 02/04/1994
Unknown
Comcast Phone Of California
Introduced 07/14/2014
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 01/10/1996
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Fremont
T-mobile Usa
Introduced 08/14/1998
Landline
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 05/10/1999
Landline
Oakland
Pacific Bell
Introduced 09/11/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Mci Worldcom Communications, Ca
Introduced 01/10/1996
Landline
Fremont
Comcast Phone Of California
Introduced 01/11/1997
Landline
Fremont
Pacific Bell
Introduced 05/18/1998
Landline
Oakland
Metro PCS
Introduced 05/18/1998
Landline
Hayward
Xo California
Introduced 08/14/1998
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Xo California
Introduced 05/18/1998
Wireless
Fremont
New Cingular Wireless PCS
Introduced 01/10/1996
Landline
Fremont
Xo California
Introduced 05/18/1998
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 07/01/1996
Landline
Hayward
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Fremont
Mpower Communications Corp
Introduced 08/20/2000
Landline
Hayward
Comcast Phone Of California
Introduced 04/01/1997
Landline
Oakland
Pacific Bell
Introduced 07/06/1997
Landline
Oakland
Pac - West Telecomm
Introduced 08/14/1998
Wireless
Hayward
New Cingular Wireless PCS
Introduced 01/10/1996
Wireless
Oakland
New Cingular Wireless PCS
Introduced 01/10/1996
Wireless
Hayward
American Messaging Services
Introduced 02/27/1999
Landline
Hercules
Broadwing Communications
Introduced 08/20/2000
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 02/27/1999
Landline
Oakland
Pacific Bell
Introduced 04/15/1996
Landline
Oakland
Pacific Bell
Introduced 01/10/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 09/11/1994
Wireless
Fremont
T-mobile Usa
Introduced 01/18/2013
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/11/1995
Landline
Hayward
Cf Communications DBA Telekenex
Introduced 03/12/2012
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/11/1995
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 08/10/2010
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
New Cingular Wireless PCS
Introduced 07/04/1995
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 09/11/1994
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Broadwing Communications
Introduced 05/10/1999
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Oakland
Pacific Bell
Introduced 07/06/1997
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 07/04/1995
Landline
Oakland
Pacific Bell
Introduced 07/22/1999
Landline
Oakland
Pacific Bell
Introduced 07/06/1997
Landline
Oakland
Pacific Bell
Introduced 01/11/1997
Landline
Oakland
Level 3 Communications
Introduced 11/20/1998
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Usa Mobility Wireless
Introduced 04/15/1996
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Bandwidth.com Clec
Introduced 03/07/2013
Landline
Berkeley
Pacific Bell
Introduced 01/10/1996
Wireless
Fremont
New Cingular Wireless PCS
Introduced 10/31/2000
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/11/1995
Landline
El Sobrante
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Oakland
Pacific Bell
Introduced 05/18/1998
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 04/15/1996
Landline
Berkeley
Pacific Bell
Introduced 07/06/1997
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 04/15/1996
Landline
El Sobrante
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Bandwidth.com Clec
Introduced 05/14/2013
Wireless
Richmond
Cellco Partnership DBA Verizon Wireless
Introduced 09/19/2002
Wireless
Fremont
Cellco Partnership DBA Verizon Wireless
Introduced 08/20/2000
Landline
Union City
Pacific Bell
Introduced 07/22/1999
Wireless
Fremont
New Cingular Wireless PCS
Introduced 06/14/2002
Landline
Hayward
Metro PCS
Introduced 03/22/2001
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Centurylink Communications LLC
Introduced 06/03/2013
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 10/13/1999
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 10/13/1999
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 10/13/1999
Wireless
Richmond
Cellco Partnership DBA Verizon Wireless
Introduced 06/13/2000
Landline
San Leandro
Sbc Internet Services
Introduced 06/13/2000
Landline
Fremont
Pacific Bell
Introduced 06/13/2000
Landline
Hayward
T-mobile Usa
Introduced 01/14/2000
Landline
Oakland
Mpower Communications Corp
Introduced 04/20/2001
Landline
Hayward
Pacific Bell
Introduced 05/10/1999
Wireless
Hercules
Sprint Spectrum L.p.
Introduced 09/19/2001
Landline
Oakland
Metro PCS
Introduced 10/31/2000
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 08/17/2007
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Oakland
Mpower Communications Corp
Introduced 04/01/1997
Wireless
Oakland
33 Wireless Inc.
Introduced 07/06/1997
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/11/1995
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/11/1995
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 07/04/1995
Wireless
Hayward
Metro PCS
Introduced 08/22/2001
Wireless
Oakland
New Cingular Wireless PCS
Introduced 04/15/1996
Landline
Fremont
O1 Communications
Introduced 06/25/2001
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Wireless
Oakland
New Cingular Wireless PCS
Introduced 04/15/1996
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Wireless
Fremont
Sprint Spectrum L.p.
Introduced 11/20/1998
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 04/01/1997
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Berkeley
T-mobile Usa
Introduced 09/19/2002
Wireless
Oakland
American Messaging (am)
Introduced 02/04/1994
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 10/11/1997
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Oakland
Usa Mobility Wireless
Introduced 07/01/1996
Landline
Crockett
Pac - West Telecomm
Introduced 02/28/2001
Landline
Hayward
Pacific Bell
Introduced 04/01/1997
Landline
El Sobrante
Pacific Bell
Introduced 02/04/1994
Landline
Walnut Creek
Tw Telecom Of California Lp
Introduced 11/20/1998
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 07/04/1995
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Bandwidth.com Clec
Introduced 02/22/2010
Landline
Hayward
Mci Worldcom Communications, Ca
Introduced 04/15/1996
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Wireless
Richmond
New Cingular Wireless PCS
Introduced 01/14/2000
Landline
Oakland
Pacific Bell
Introduced 08/20/2000
Wireless
Hayward
T-mobile Usa
Introduced 12/09/2013
Landline
Fremont
Pacific Bell
Introduced 10/15/1996
Landline
Oakland
Xo California
Introduced 11/20/1998
Landline
El Sobrante
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Xo California
Introduced 10/31/2000
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
U.s. Telepacific Corp.
Introduced 04/23/2001
Landline
Alameda
Pacific Bell
Introduced 01/10/1996
Landline
Alameda
Pacific Bell
Introduced 02/04/1994
Landline
Alameda
Pacific Bell
Introduced 07/01/1996
Wireless
Hayward
Sprint Spectrum L.p.
Introduced 06/13/2000
Landline
Hayward
Pac - West Telecomm
Introduced 05/10/1999
Landline
Oakland
Pacific Bell
Introduced 01/14/2000
Wireless
Hayward
Sprint Spectrum L.p.
Introduced 05/17/2002
Wireless
Hayward
Sprint Spectrum L.p.
Introduced 10/31/2000
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 01/14/2000
Landline
El Sobrante
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
New Cingular Wireless PCS
Introduced 01/10/1996
Wireless
Hayward
Sprint Spectrum L.p.
Introduced 11/20/1998
Wireless
Oakland
New Cingular Wireless PCS
Introduced 01/10/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Broadwing Communications
Introduced 05/10/1999
Landline
El Sobrante
Pacific Bell
Introduced 09/11/1994
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Alameda
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Mci Worldcom Communications, Ca
Introduced 04/15/1996
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 02/04/1994
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 01/25/1998
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 11/20/1998
Landline
San Francisco
Bandwidth.com Clec
Introduced 09/14/2012
Wireless
Richmond
Metro PCS
Introduced 09/21/2001
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Comcast Phone Of California
Introduced 09/21/2006
Landline
El Sobrante
Broadwing Communications
Introduced 06/13/2000
Landline
Hayward
Pacific Bell
Introduced 01/10/1996
Landline
Hayward
Pacific Bell
Introduced 07/04/1995
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Crockett
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Fremont
Mci Worldcom Communications, Ca
Introduced 04/15/1996
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 01/14/2000
Landline
Hercules
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Cf Communications DBA Telekenex
Introduced 11/01/2011
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/11/1995
Landline
Hercules
Xo California
Introduced 10/13/1999
Wireless
Oakland
Usa Mobility Wireless
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
U.s. Telepacific Corp.
Introduced 02/27/1999
Wireless
Berkeley
Usa Mobility Wireless
Introduced 02/04/1994
Wireless
Berkeley
Sprint Spectrum L.p.
Introduced 02/27/1999
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/11/1995
Landline
Alameda
Pacific Bell
Introduced 02/04/1994
Wireless
El Sobrante
Sprint Spectrum L.p.
Introduced 03/03/2001
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Pacific Bell
Introduced 02/27/1999
Wireless
Oakland
American Messaging Services
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 01/14/2000
Landline
Fremont
Allegiance Telecom
Introduced 08/20/2000
Wireless
Hayward
Sprint Spectrum L.p.
Introduced 10/18/2001
Landline
San Francisco
Metro PCS
Introduced 10/31/2000
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 03/22/2001
Landline
Alameda
O1 Communications
Introduced 01/25/2001
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Richmond
Teleport Communications Group - San Francisco
Introduced 06/13/2000
Landline
San Francisco
Bandwidth.com Clec
Introduced 02/28/2014
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
American Messaging (am)
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Allegiance Telecom
Introduced 10/13/1999
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Allegiance Telecom
Introduced 02/27/1999
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 06/13/2000
Wireless
Berkeley
Cellco Partnership DBA Verizon Wireless
Introduced 03/22/2001
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 01/10/1996
Landline
El Sobrante
O1 Communications
Introduced 05/17/2001
Wireless
Oakland
The Telephone Connection Local Services
Introduced 10/31/2000
Landline
Hayward
Allegiance Telecom
Introduced 06/13/2000
Landline
Fremont
Allegiance Telecom
Introduced 06/13/2000
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 10/31/2000
Landline
Oakland
Mpower Communications Corp
Introduced 04/01/1997
Landline
Richmond
Level 3 Communications
Introduced 02/04/1994
Wireless
Hayward
New Cingular Wireless PCS
Introduced 01/14/2000
Wireless
Hayward
New Cingular Wireless PCS
Introduced 01/14/2000
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 10/15/1996
Landline
Alameda
Pacific Bell
Introduced 01/10/1996
Landline
Alameda
Pacific Bell
Introduced 02/04/1994
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 01/25/2001
Wireless
Oakland
Sprint Spectrum L.p.
Introduced 10/13/1999
Landline
San Francisco
Broadwing Communications
Introduced 05/10/1999
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Union City
Broadwing Communications
Introduced 05/10/1999
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 05/10/1999
Landline
Oakland
Pacific Bell
Introduced 02/11/1995
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Xo California
Introduced 02/27/1999
Landline
Hayward
Sbc Internet Services
Introduced 03/27/2014
Landline
San Francisco
Mci Worldcom Communications, Ca
Introduced 04/15/1996
Landline
San Francisco
Comcast Phone Of California
Introduced 04/15/1996
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 04/15/1996
Landline
Hayward
Pac - West Telecomm
Introduced 07/06/1997
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 07/04/1995
Landline
Berkeley
Pacific Bell
Introduced 02/04/1994
Wireless
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/11/1995
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Hayward
Pac - West Telecomm
Introduced 10/15/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Comcast Phone Of California
Introduced 01/11/1997
Landline
San Leandro
Pacific Bell
Introduced 02/04/1994
Landline
Fremont
Teleport Communications Group - San Francisco
Introduced 04/15/1996
Landline
Fremont
Teleport Communications Group - San Francisco
Introduced 04/15/1996
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 04/15/1996
Landline
Oakland
Pac - West Telecomm
Introduced 04/15/1996
Landline
San Francisco
Cf Communications DBA Telekenex
Introduced 06/29/2011
Landline
San Francisco
Broadwing Communications
Introduced 05/10/1999
Landline
San Francisco
Broadwing Communications
Introduced 04/20/2001
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 07/06/1997
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 07/06/1997
Wireless
Hayward
Cellco Partnership DBA Verizon Wireless
Introduced 07/22/1999
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 09/11/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 04/15/1996
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 02/11/1995
Wireless
Oakland
New Cingular Wireless PCS
Introduced 02/04/1994
Wireless
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 01/25/1998
Landline
Hayward
Teleport Communications Group - San Francisco
Introduced 04/15/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
Oakland
Pacific Bell
Introduced 10/15/1996
Landline
Oakland
Global Crossing Local Services-ca
Introduced 10/13/1999
Landline
Oakland
Cellco Partnership DBA Verizon Wireless
Introduced 06/30/2001
Landline
Oakland
Global Crossing Local Services-ca
Introduced 08/20/2000
Wireless
Oakland
New Cingular Wireless PCS
Introduced 09/11/1994
Landline
Hayward
O1 Communications
Introduced 07/22/1999
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 03/22/2001
Landline
San Jose
U.s. Telepacific Corp.
Introduced 03/01/2001
Wireless
Hayward
New Cingular Wireless PCS
Introduced 03/27/2014
Landline
Fremont
Pacific Bell
Introduced 02/04/1994
Wireless
Fremont
Metro PCS
Introduced 09/21/2001
Landline
Hayward
Mpower Communications Corp
Introduced 08/20/2000
Landline
Fremont
Tw Telecom Of California Lp
Introduced 01/14/2000
Landline
Hercules
Xo California
Introduced 08/18/2004
Wireless
Union City
Sprint Spectrum L.p.
Introduced 05/17/2001
Landline
San Francisco
Allegiance Telecom
Introduced 05/10/1999
Landline
Hayward
Level 3 Communications
Introduced 07/22/1999
Landline
El Sobrante
Pacific Bell
Introduced 07/22/1999
Landline
Richmond
Pacific Bell
Introduced 07/22/1999
Wireless
Union City
American Messaging Services
Introduced 05/10/1999
Wireless
San Francisco
Sprint Spectrum L.p.
Introduced 07/22/1999
Wireless
Fremont
American Messaging (am)
Introduced 10/13/1999
Landline
Oakland
Tw Telecom Of California Lp
Introduced 05/10/1999
Landline
Richmond
Pacific Bell
Introduced 02/04/1994
Landline
Union City
Comcast Phone Of California
Introduced 04/01/1997
Unknown
North County Communications Corp.
Introduced 06/08/2011
Landline
Oakland
Level 3 Communications
Introduced 07/22/1999
Landline
Fremont
Pacific Bell
Introduced 07/22/1999
Landline
Berkeley
Pacific Bell
Introduced 07/22/1999
Landline
San Francisco
Mci Worldcom Communications, Ca
Introduced 04/15/1996
Landline
Oakland
Level 3 Communications
Introduced 07/22/1999
Landline
Oakland
Pacific Bell
Introduced 05/10/1999
Landline
Oakland
Pacific Bell
Introduced 04/15/1996
Landline
Oakland
Pacific Bell
Introduced 02/04/1994
Landline
San Francisco
Cf Communications DBA Telekenex
Introduced 07/20/2012
Landline
Union City
Pac - West Telecomm
Introduced 05/10/1999
Landline
Oakland
Pac - West Telecomm
Introduced 05/10/1999
Landline
Oakland
U.s. Telepacific Corp.
Introduced 07/22/1999
Landline
Fremont
Global Crossing Local Services-ca
Introduced 05/10/1999
Wireless
Oakland
American Messaging Services
Introduced 07/22/1999
Landline
Hayward
Cf Communications DBA Telekenex
Introduced 10/22/2010

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