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 (6:07pm)
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
(650) 200-
Landline
San Mateo
O1 Communications
Introduced 07/06/1997
(650) 201-
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 06/30/2001
(650) 202-
Wireless
San Mateo
The Telephone Connection Local Services
Introduced 03/03/2001
(650) 204-
Landline
San Francisco
Tw Telecom Of California Lp
Introduced 05/10/1999
(650) 205-
Wireless
San Bruno
Usa Mobility Wireless
Introduced 08/14/1998
(650) 206-
Landline
Woodside
Mpower Communications Corp
Introduced 02/27/1999
(650) 207-
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
(650) 208-
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
(650) 209-
Landline
San Jose
U.s. Telepacific Corp.
Introduced 05/10/1999
(650) 210-
Landline
Mountain View
Pacific Bell
Introduced 05/10/1999
(650) 212-
Landline
San Mateo
Pacific Bell
Introduced 05/10/1999
(650) 213-
Landline
Palo Alto
Pacific Bell
Introduced 05/10/1999
(650) 214-
Landline
Mountain View
Mci Worldcom Communications, Ca
Introduced 02/15/2007
(650) 215-
Landline
Mountain View
Global Crossing Local Services-ca
Introduced 05/10/1999
(650) 216-
Landline
Redwood City
Pacific Bell
Introduced 05/10/1999
(650) 217-
Wireless
San Mateo
Usa Mobility Wireless
Introduced 08/14/1998
(650) 218-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 08/14/1998
(650) 219-
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 08/14/1998
(650) 220-
Wireless
San Mateo
American Messaging (am)
Introduced 08/14/1998
(650) 221-
Wireless
Redwood City
American Messaging Services
Introduced 08/14/1998
(650) 222-
Wireless
San Mateo
Sprint Spectrum L.p.
Introduced 11/20/1998
(650) 223-
Landline
Palo Alto
Mpower Communications Corp
Introduced 07/06/1997
(650) 224-
Wireless
Mountain View
New Cingular Wireless PCS
Introduced 11/20/1998
(650) 225-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 226-
Landline
Redwood City
Mci Worldcom Communications, Ca
Introduced 07/06/1997
(650) 227-
Landline
San Mateo
Xo California
Introduced 08/14/1998
(650) 228-
Landline
San Bruno
Xo California
Introduced 08/14/1998
(650) 229-
Landline
Fremont
Xo California
Introduced 08/14/1998
(650) 230-
Landline
Fremont
Xo California
Introduced 08/14/1998
(650) 231-
Landline
Millbrae
Xo California
Introduced 08/14/1998
(650) 232-
Landline
San Carlos
Xo California
Introduced 08/14/1998
(650) 233-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 234-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 235-
Landline
San Mateo
Brooks Fiber Communications Of California
Introduced 07/06/1997
(650) 236-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 237-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 238-
Landline
San Bruno
Mci Worldcom Communications, Ca
Introduced 07/06/1997
(650) 239-
Landline
Millbrae
Pac - West Telecomm
Introduced 08/14/1998
(650) 240-
Landline
San Mateo
Pac - West Telecomm
Introduced 08/14/1998
(650) 241-
Landline
Redwood City
Level 3 Communications
Introduced 08/14/1998
(650) 242-
Landline
San Mateo
Level 3 Communications
Introduced 08/14/1998
(650) 243-
Landline
San Bruno
U.s. Telepacific Corp.
Introduced 02/27/1999
(650) 244-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 245-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
(650) 246-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 247-
Wireless
Palo Alto
American Messaging Services
Introduced 11/20/1998
(650) 248-
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 06/13/2000
(650) 249-
Landline
Redwood City
Pac - West Telecomm
Introduced 07/22/1999
(650) 251-
Landline
Palo Alto
Pacific Bell
Introduced 07/22/1999
(650) 252-
Landline
Palo Alto
Peerless Network Of California
Introduced 04/13/2012
(650) 253-
Landline
Mountain View
Mci Worldcom Communications, Ca
Introduced 04/27/2004
(650) 254-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 255-
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 02/27/1999
(650) 256-
Wireless
San Bruno
American Messaging (am)
Introduced 07/22/1999
(650) 257-
Landline
Redwood City
Global Crossing Local Services-ca
Introduced 07/22/1999
(650) 258-
Landline
Palo Alto
Teleport Communications Group - San Francisco
Introduced 09/13/2011
(650) 259-
Landline
Millbrae
Pacific Bell
Introduced 07/06/1997
(650) 260-
Landline
Redwood City
AT&T Local
Introduced 11/20/1998
(650) 261-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 262-
Landline
Pescadero
Level 3 Communications
Introduced 11/20/1998
(650) 263-
Landline
Moss Beach
Mci Worldcom Communications, Ca
Introduced 07/22/1999
(650) 264-
Landline
San Carlos
AT&T Local
Introduced 02/27/1999
(650) 265-
Landline
Mountain View
AT&T Local
Introduced 08/14/1998
(650) 266-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 267-
Landline
San Francisco
Level 3 Communications
Introduced 11/20/1998
(650) 268-
Landline
Pescadero
Xo California
Introduced 07/22/1999
(650) 269-
Wireless
Palo Alto
Cellco Partnership DBA Verizon Wireless
Introduced 07/22/1999
(650) 270-
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 11/20/1998
(650) 271-
Wireless
San Francisco
Metro PCS
Introduced 08/22/2001
(650) 272-
Landline
Fremont
Xo California
Introduced 08/19/2013
(650) 273-
Landline
San Bruno
Astound Broadband
Introduced 10/13/1999
(650) 274-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 07/22/1999
(650) 275-
Landline
Woodside
Xo California
Introduced 07/22/1999
(650) 276-
Landline
Half Moon Bay
Tw Telecom Of California Lp
Introduced 07/22/1999
(650) 277-
Wireless
Redwood City
33 Wireless Inc.
Introduced 11/20/1998
(650) 278-
Wireless
San Mateo
T-mobile Usa
Introduced 12/27/2001
(650) 279-
Wireless
Mountain View
Cellco Partnership DBA Verizon Wireless
Introduced 07/22/1999
(650) 280-
Wireless
Mountain View
Sprint Spectrum L.p.
Introduced 05/10/1999
(650) 281-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 07/22/1999
(650) 282-
Landline
Mountain View
Astound Broadband
Introduced 10/13/1999
(650) 283-
Wireless
Palo Alto
T-mobile Usa
Introduced 12/27/2001
(650) 284-
Landline
Half Moon Bay
Pac - West Telecomm
Introduced 07/22/1999
(650) 285-
Landline
Palo Alto
Bandwidth.com Clec
Introduced 10/21/2013
(650) 286-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 287-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 288-
Landline
San Mateo
Level 3 Communications
Introduced 11/20/1998
(650) 289-
Landline
Palo Alto
Pacific Bell
Introduced 01/14/2000
(650) 290-
Landline
Pacifica
Metro PCS
Introduced 08/22/2001
(650) 291-
Wireless
San Bruno
Cellco Partnership DBA Verizon Wireless
Introduced 07/22/1999
(650) 292-
Landline
San Mateo
Broadwing Communications
Introduced 11/20/1998
(650) 293-
Landline
San Mateo
Pacific Bell
Introduced 11/20/1998
(650) 294-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 295-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 296-
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 07/22/1999
(650) 297-
Landline
Pescadero
Tw Telecom Of California Lp
Introduced 07/22/1999
(650) 298-
Landline
Redwood City
Pacific Bell
Introduced 11/20/1998
(650) 299-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 300-
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 09/18/2012
(650) 301-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 302-
Wireless
Millbrae
New Cingular Wireless PCS
Introduced 10/13/1999
(650) 303-
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 10/13/1999
(650) 305-
Wireless
Los Altos
T-mobile Usa
Introduced 09/19/2002
(650) 306-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 307-
Wireless
Millbrae
T-mobile Usa
Introduced 12/27/2001
(650) 308-
Landline
Palo Alto
Pacific Bell
Introduced 12/23/2010
(650) 312-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 314-
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
(650) 315-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 10/13/1999
(650) 316-
Landline
Mountain View
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 317-
Wireless
Mountain View
Usa Mobility Wireless
Introduced 07/06/1997
(650) 318-
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
(650) 319-
Landline
Sunnyvale
Allegiance Telecom
Introduced 02/27/1999
(650) 320-
Landline
Palo Alto
Pacific Bell
Introduced 11/20/1998
(650) 321-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 322-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 323-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 324-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 325-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 326-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 327-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 328-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 329-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 330-
Landline
Palo Alto
Pacific Bell
Introduced 11/20/1998
(650) 331-
Landline
Palo Alto
Broadwing Communications
Introduced 11/20/1998
(650) 332-
Landline
Woodside
Pac - West Telecomm
Introduced 11/20/1998
(650) 333-
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 11/20/1998
(650) 335-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 336-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 337-
Landline
Pescadero
O1 Communications
Introduced 07/22/1999
(650) 339-
Wireless
San Carlos
Cellco Partnership DBA Verizon Wireless
Introduced 05/10/1999
(650) 340-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 341-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 342-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 343-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 344-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 345-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 346-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 05/10/1999
(650) 347-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 348-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 349-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 350-
Landline
San Mateo
Pacific Bell
Introduced 05/10/1999
(650) 351-
Landline
San Francisco
Global Crossing Local Services-ca
Introduced 05/10/1999
(650) 352-
Landline
Palo Alto
Global Crossing Local Services-ca
Introduced 05/10/1999
(650) 353-
Landline
Palo Alto
Level 3 Communications
Introduced 11/20/1998
(650) 354-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 355-
Landline
Pacifica
Pacific Bell
Introduced 07/06/1997
(650) 356-
Landline
San Mateo
Pacific Bell
Introduced 11/20/1998
(650) 357-
Landline
San Mateo
Pacific Bell
Introduced 08/14/1998
(650) 358-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 359-
Landline
Pacifica
Pacific Bell
Introduced 07/06/1997
(650) 360-
Landline
San Bruno
Pac - West Telecomm
Introduced 05/10/1999
(650) 361-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 362-
Landline
Redwood City
Allegiance Telecom
Introduced 02/27/1999
(650) 363-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 364-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 365-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 366-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 367-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 368-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 369-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 370-
Wireless
Palo Alto
American Messaging (am)
Introduced 07/22/1999
(650) 371-
Wireless
San Mateo
Usa Mobility Wireless
Introduced 07/06/1997
(650) 372-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 373-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 374-
Wireless
Redwood City
American Messaging (am)
Introduced 07/22/1999
(650) 375-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 376-
Landline
San Mateo
Global Crossing Local Services-ca
Introduced 02/27/1999
(650) 377-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 378-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 380-
Wireless
Palo Alto
Cellco Partnership DBA Verizon Wireless
Introduced 11/29/2001
(650) 381-
Landline
Redwood City
Pacific Bell
Introduced 03/03/2001
(650) 383-
Landline
San Jose
Teleport Communications Group - San Francisco
Introduced 10/13/1999
(650) 384-
Landline
Palo Alto
Teleport Communications Group - San Francisco
Introduced 10/13/1999
(650) 385-
Landline
Redwood City
Teleport Communications Group - San Francisco
Introduced 10/13/1999
(650) 386-
Landline
San Jose
Teleport Communications Group - San Francisco
Introduced 10/13/1999
(650) 387-
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 03/03/2001
(650) 388-
Landline
Palo Alto
Mcimetro Access Transmission Services LLC
Introduced 08/14/1998
(650) 389-
Landline
San Mateo
Mcimetro Access Transmission Services LLC
Introduced 08/14/1998
(650) 390-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 391-
Landline
Palo Alto
Tw Telecom Of California Lp
Introduced 08/14/1998
(650) 392-
Landline
San Francisco
Tw Telecom Of California Lp
Introduced 08/14/1998
(650) 393-
Landline
San Mateo
Tw Telecom Of California Lp
Introduced 08/14/1998
(650) 394-
Landline
San Carlos
Tw Telecom Of California Lp
Introduced 08/14/1998
(650) 395-
Landline
Redwood City
Tw Telecom Of California Lp
Introduced 08/14/1998
(650) 396-
Landline
Mountain View
T-mobile Usa
Introduced 08/14/1998
(650) 397-
Landline
Los Altos
O1 Communications
Introduced 05/10/1999
(650) 399-
Landline
Redwood City
O1 Communications
Introduced 06/30/2001
(650) 400-
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
(650) 401-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 403-
Landline
San Mateo
Allegiance Telecom
Introduced 02/27/1999
(650) 404-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 406-
Wireless
Mountain View
American Messaging Services
Introduced 01/14/2000
(650) 408-
Wireless
San Mateo
American Messaging Services
Introduced 08/14/1998
(650) 409-
Landline
San Francisco
U.s. Telepacific Corp.
Introduced 10/11/1997
(650) 412-
Landline
San Carlos
Allegiance Telecom
Introduced 02/27/1999
(650) 413-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 416-
Landline
San Francisco
Mpower Communications Corp
Introduced 10/11/1997
(650) 417-
Landline
San Jose
U.s. Telepacific Corp.
Introduced 10/11/1997
(650) 419-
Landline
La Honda
Level 3 Communications
Introduced 10/13/1999
(650) 421-
Landline
Redwood City
U.s. Telepacific Corp.
Introduced 07/22/1999
(650) 422-
Wireless
Palo Alto
Cellco Partnership DBA Verizon Wireless
Introduced 04/19/2013
(650) 423-
Landline
Redwood City
Pac - West Telecomm
Introduced 07/06/1997
(650) 424-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 425-
Landline
San Mateo
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 426-
Landline
Mountain View
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 427-
Landline
Palo Alto
Mci Worldcom Communications, Ca
Introduced 12/27/2006
(650) 428-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 429-
Landline
Redwood City
Mci Worldcom Communications, Ca
Introduced 07/06/1997
(650) 430-
Wireless
San Mateo
T-mobile Usa
Introduced 12/27/2001
(650) 432-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 433-
Landline
Palo Alto
Allegiance Telecom
Introduced 10/13/1999
(650) 434-
Landline
Woodside
U.s. Telepacific Corp.
Introduced 10/13/1999
(650) 437-
Landline
San Mateo
Bandwidth.com Clec
Introduced 03/03/2014
(650) 438-
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 10/18/2001
(650) 440-
Wireless
Half Moon Bay
T-mobile Usa
Introduced 09/19/2002
(650) 443-
Landline
Millbrae
U.s. Telepacific Corp.
Introduced 05/10/1999
(650) 444-
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 11/20/1998
(650) 445-
Wireless
San Mateo
T-mobile Usa
Introduced 07/22/2013
(650) 446-
Landline
Woodside
O1 Communications
Introduced 04/23/2001
(650) 449-
Landline
San Francisco
Allegiance Telecom
Introduced 10/31/2000
(650) 450-
Wireless
Mountain View
New Cingular Wireless PCS
Introduced 01/28/2002
(650) 451-
Landline
San Francisco
T-mobile Usa
Introduced 05/10/1999
(650) 452-
Landline
San Francisco
AT&T Local
Introduced 11/20/1998
(650) 453-
Landline
San Carlos
Global Crossing Local Services-ca
Introduced 05/10/1999
(650) 454-
Wireless
Redwood City
New Cingular Wireless PCS
Introduced 01/28/2002
(650) 455-
Wireless
Millbrae
New Cingular Wireless PCS
Introduced 05/10/1999
(650) 456-
Landline
Pescadero
Pac - West Telecomm
Introduced 05/10/1999
(650) 458-
Landline
San Mateo
Astound Broadband
Introduced 10/13/1999
(650) 461-
Landline
Palo Alto
Pacific Bell
Introduced 11/20/1998
(650) 462-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 463-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 464-
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 11/20/1998
(650) 465-
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 01/25/1998
(650) 466-
Landline
San Francisco
Pacific Bell
Introduced 11/20/1998
(650) 467-
Landline
San Bruno
Pacific Bell
Introduced 01/14/2000
(650) 468-
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 04/23/2001
(650) 469-
Landline
Los Altos
Allegiance Telecom
Introduced 02/27/1999
(650) 470-
Landline
Palo Alto
Pacific Bell
Introduced 01/25/1998
(650) 471-
Landline
San Jose
Mpower Communications Corp
Introduced 10/11/1997
(650) 472-
Landline
Los Altos
Broadwing Communications
Introduced 02/27/1999
(650) 473-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 474-
Landline
Redwood City
Pacific Bell
Introduced 01/14/2000
(650) 475-
Landline
Fremont
Xo California
Introduced 05/18/1998
(650) 477-
Landline
San Mateo
Cellco Partnership DBA Verizon Wireless
Introduced 06/13/2000
(650) 479-
Landline
Half Moon Bay
U.s. Telepacific Corp.
Introduced 08/20/2000
(650) 480-
Landline
Redwood City
Brooks Fiber Communications Of California
Introduced 07/06/1997
(650) 481-
Landline
Redwood City
Mci Worldcom Communications, Ca
Introduced 07/06/1997
(650) 482-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 483-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/25/1998
(650) 485-
Landline
Palo Alto
Pacific Bell
Introduced 06/13/2000
(650) 486-
Landline
San Carlos
Pacific Bell
Introduced 08/20/2000
(650) 487-
Landline
La Honda
U.s. Telepacific Corp.
Introduced 08/20/2000
(650) 488-
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 02/27/1999
(650) 489-
Landline
San Carlos
Level 3 Communications
Introduced 10/13/1999
(650) 490-
Wireless
Millbrae
New Cingular Wireless PCS
Introduced 01/28/2002
(650) 491-
Landline
San Bruno
Broadwing Communications
Introduced 03/03/2001
(650) 492-
Wireless
Mountain View
New Cingular Wireless PCS
Introduced 01/28/2002
(650) 493-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 494-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 496-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 497-
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
(650) 498-
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
(650) 500-
Wireless
San Carlos
American Messaging Services
Introduced 08/14/1998
(650) 503-
Landline
Redwood City
Mpower Communications Corp
Introduced 10/11/1997
(650) 504-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
(650) 506-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 508-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 513-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 515-
Landline
San Bruno
Level 3 Communications
Introduced 07/22/1999
(650) 516-
Landline
Pacifica
U.s. Telepacific Corp.
Introduced 01/14/2000
(650) 517-
Landline
San Carlos
U.s. Telepacific Corp.
Introduced 01/14/2000
(650) 518-
Wireless
Los Altos
Metro PCS
Introduced 09/21/2001
(650) 520-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 11/20/1998
(650) 521-
Landline
Palo Alto
Comcast Phone Of California
Introduced 08/04/2005
(650) 522-
Landline
San Mateo
Pacific Bell
Introduced 11/20/1998
(650) 523-
Landline
San Mateo
Pac - West Telecomm
Introduced 07/06/1997
(650) 524-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 525-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 526-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 527-
Landline
Mountain View
Pacific Bell
Introduced 10/31/2000
(650) 528-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 529-
Landline
Woodside
Pacific Bell
Introduced 07/06/1997
(650) 530-
Landline
Woodside
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 532-
Landline
San Mateo
Mpower Communications Corp
Introduced 07/06/1997
(650) 533-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 01/25/1998
(650) 534-
Landline
San Bruno
Brooks Fiber Communications Of California
Introduced 10/11/1997
(650) 535-
Landline
Moss Beach
U.s. Telepacific Corp.
Introduced 08/20/2000
(650) 537-
Wireless
Mountain View
Sprint Spectrum L.p.
Introduced 08/20/2000
(650) 538-
Landline
Pescadero
U.s. Telepacific Corp.
Introduced 08/20/2000
(650) 539-
Wireless
San Mateo
T-mobile Usa
Introduced 05/18/1998
(650) 542-
Landline
Redwood City
Pacific Bell
Introduced 08/20/2000
(650) 543-
Landline
San Jose
U.s. Telepacific Corp.
Introduced 02/27/1999
(650) 544-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 10/13/1999
(650) 545-
Landline
Mountain View
North County Communications Corp.
Introduced 01/14/2000
(650) 548-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 549-
Landline
Redwood City
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 550-
Landline
Colma
Pacific Bell
Introduced 08/14/1998
(650) 551-
Landline
San Carlos
Pacific Bell
Introduced 08/14/1998
(650) 552-
Landline
Millbrae
Pacific Bell
Introduced 08/14/1998
(650) 553-
Landline
San Bruno
Pacific Bell
Introduced 08/14/1998
(650) 554-
Landline
San Mateo
Pacific Bell
Introduced 08/14/1998
(650) 556-
Landline
Redwood City
Pacific Bell
Introduced 08/14/1998
(650) 557-
Landline
Pacifica
Pacific Bell
Introduced 08/14/1998
(650) 558-
Landline
San Mateo
Pacific Bell
Introduced 08/14/1998
(650) 559-
Landline
Los Altos
Pacific Bell
Introduced 08/14/1998
(650) 560-
Landline
Half Moon Bay
Pacific Bell
Introduced 08/14/1998
(650) 561-
Landline
Palo Alto
Pacific Bell
Introduced 08/14/1998
(650) 562-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 563-
Landline
Moss Beach
Pacific Bell
Introduced 08/14/1998
(650) 564-
Landline
Mountain View
Pacific Bell
Introduced 08/14/1998
(650) 565-
Landline
Palo Alto
Pacific Bell
Introduced 08/14/1998
(650) 566-
Landline
Palo Alto
Pacific Bell
Introduced 08/14/1998
(650) 567-
Landline
Mountain View
Pacific Bell
Introduced 08/14/1998
(650) 568-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 569-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 570-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 571-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 572-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 573-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 574-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 575-
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 01/14/2000
(650) 576-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/14/2000
(650) 577-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 578-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 579-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 580-
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 05/18/1998
(650) 581-
Landline
San Mateo
Teleport Communications Group - San Francisco
Introduced 10/11/1997
(650) 583-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 584-
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
(650) 585-
Landline
San Carlos
Broadwing Communications
Introduced 08/20/2000
(650) 587-
Landline
Redwood City
Broadwing Communications
Introduced 08/20/2000
(650) 588-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 589-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 590-
Landline
San Carlos
Pac - West Telecomm
Introduced 07/06/1997
(650) 591-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 592-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 593-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 594-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 595-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 596-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 597-
Landline
San Carlos
Utility Telephone
Introduced 10/04/2008
(650) 598-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 599-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 600-
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 06/12/2012
(650) 603-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 604-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 605-
Landline
Mountain View
Allegiance Telecom
Introduced 02/27/1999
(650) 607-
Landline
San Carlos
Pacific Bell
Introduced 11/20/1998
(650) 610-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 612-
Wireless
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 614-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 615-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 616-
Landline
San Bruno
Pacific Bell
Introduced 11/20/1998
(650) 617-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 618-
Landline
Palo Alto
Pac - West Telecomm
Introduced 07/06/1997
(650) 619-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
(650) 620-
Landline
San Carlos
Pacific Bell
Introduced 11/20/1998
(650) 621-
Landline
Palo Alto
Pacific Bell
Introduced 11/20/1998
(650) 622-
Landline
San Carlos
Pacific Bell
Introduced 11/20/1998
(650) 623-
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
(650) 624-
Landline
San Bruno
Pacific Bell
Introduced 11/20/1998
(650) 625-
Landline
Mountain View
Pacific Bell
Introduced 11/20/1998
(650) 627-
Landline
San Mateo
Pacific Bell
Introduced 11/20/1998
(650) 628-
Landline
San Carlos
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 630-
Wireless
Palo Alto
Metro PCS
Introduced 08/22/2001
(650) 631-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 632-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 633-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 634-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 635-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 636-
Landline
San Francisco
Allegiance Telecom
Introduced 02/27/1999
(650) 637-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 638-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 639-
Wireless
San Mateo
American Messaging (am)
Introduced 07/22/1999
(650) 641-
Landline
Mountain View
Broadwing Communications
Introduced 08/20/2000
(650) 642-
Wireless
San Mateo
Sprint Spectrum L.p.
Introduced 07/22/1999
(650) 644-
Landline
Palo Alto
Pac - West Telecomm
Introduced 01/25/1998
(650) 645-
Landline
San Mateo
Teleport Communications Group - San Francisco
Introduced 02/27/1999
(650) 646-
Wireless
Palo Alto
T-mobile Usa
Introduced 10/31/2000
(650) 648-
Landline
San Francisco
Allegiance Telecom
Introduced 02/27/1999
(650) 649-
Landline
Redwood City
Pac - West Telecomm
Introduced 05/18/1998
(650) 651-
Landline
Millbrae
Mci Worldcom Communications, Ca
Introduced 07/06/1997
(650) 652-
Landline
Millbrae
Pacific Bell
Introduced 07/06/1997
(650) 653-
Landline
Redwood City
Mci Worldcom Communications, Ca
Introduced 07/06/1997
(650) 654-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 655-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 656-
Landline
Palo Alto
Level 3 Communications
Introduced 04/07/2014
(650) 662-
Landline
La Honda
O1 Communications
Introduced 03/22/2001
(650) 666-
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 06/12/2012
(650) 669-
Wireless
Mountain View
Metro PCS
Introduced 09/21/2001
(650) 670-
Wireless
Redwood City
Sprint Spectrum L.p.
Introduced 08/20/2000
(650) 673-
Landline
La Honda
Sbc Internet Services
Introduced 12/14/2009
(650) 676-
Landline
S San Fran
Utility Telephone
Introduced 03/07/2005
(650) 678-
Wireless
San Mateo
Cellco Partnership DBA Verizon Wireless
Introduced 05/10/1999
(650) 679-
Landline
Redwood City
Astound Broadband
Introduced 10/13/1999
(650) 681-
Landline
Palo Alto
O1 Communications
Introduced 05/17/2001
(650) 682-
Wireless
Palo Alto
The Telephone Connection Local Services
Introduced 10/31/2000
(650) 683-
Wireless
Woodside
Sprint Spectrum L.p.
Introduced 10/31/2000
(650) 684-
Landline
Millbrae
Pac - West Telecomm
Introduced 07/06/1997
(650) 685-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 686-
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 687-
Landline
Palo Alto
Mci Worldcom Communications, Ca
Introduced 07/06/1997
(650) 688-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 689-
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 690-
Landline
Palo Alto
AT&T Local
Introduced 05/18/1998
(650) 691-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 692-
Landline
Millbrae
Pacific Bell
Introduced 07/06/1997
(650) 693-
Landline
Mountain View
Broadwing Communications
Introduced 11/20/1998
(650) 694-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 696-
Landline
San Mateo
Pacific Bell
Introduced 07/06/1997
(650) 697-
Landline
Millbrae
Pacific Bell
Introduced 07/06/1997
(650) 701-
Landline
Redwood City
Pacific Bell
Introduced 10/13/1999
(650) 703-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
(650) 704-
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 11/20/1998
(650) 712-
Landline
Half Moon Bay
Pacific Bell
Introduced 07/06/1997
(650) 713-
Landline
Half Moon Bay
Allegiance Telecom
Introduced 02/27/1999
(650) 714-
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 10/13/1999
(650) 716-
Landline
Redwood City
Xo California
Introduced 01/14/2000
(650) 718-
Landline
Moss Beach
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 719-
Landline
Moss Beach
Allegiance Telecom
Introduced 02/27/1999
(650) 720-
Landline
Half Moon Bay
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 721-
Landline
Palo Alto
Level 3 Communications
Introduced 07/22/1999
(650) 722-
Wireless
Redwood City
Cellco Partnership DBA Verizon Wireless
Introduced 06/13/2000
(650) 723-
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
(650) 724-
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
(650) 725-
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
(650) 726-
Landline
Half Moon Bay
Pacific Bell
Introduced 07/06/1997
(650) 727-
Unknown
Bandwidth.com Clec
Introduced 06/03/2014
(650) 728-
Landline
Moss Beach
Pacific Bell
Introduced 07/06/1997
(650) 729-
Landline
Half Moon Bay
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 730-
Landline
San Carlos
Cellco Partnership DBA Verizon Wireless
Introduced 01/14/2000
(650) 731-
Landline
San Francisco
Astound Broadband
Introduced 01/14/2000
(650) 732-
Landline
Millbrae
Cellco Partnership DBA Verizon Wireless
Introduced 01/14/2000
(650) 733-
Landline
San Francisco
Allegiance Telecom
Introduced 02/27/1999
(650) 735-
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 736-
Landline
Palo Alto
Level 3 Communications
Introduced 07/06/1997
(650) 737-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 738-
Landline
Pacifica
Pacific Bell
Introduced 07/06/1997
(650) 739-
Landline
Palo Alto
Pacific Bell
Introduced 08/20/2000
(650) 740-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/25/1998
(650) 741-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 742-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 743-
Wireless
Redwood City
New Cingular Wireless PCS
Introduced 08/20/2000
(650) 745-
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 746-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 747-
Landline
La Honda
Pacific Bell
Introduced 07/06/1997
(650) 748-
Landline
La Honda
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 749-
Landline
La Honda
Allegiance Telecom
Introduced 02/27/1999
(650) 752-
Landline
Palo Alto
Pacific Bell
Introduced 05/10/1999
(650) 754-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 755-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 756-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 757-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 758-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 759-
Wireless
San Mateo
Cellco Partnership DBA Verizon Wireless
Introduced 08/20/2000
(650) 761-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 762-
Landline
San Mateo
Pacific Bell
Introduced 05/18/1998
(650) 763-
Landline
San Francisco
Level 3 Communications
Introduced 05/18/1998
(650) 766-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
(650) 769-
Landline
San Carlos
Brooks Fiber Communications Of California
Introduced 08/14/1998
(650) 771-
Wireless
Redwood City
Metro PCS
Introduced 09/21/2001
(650) 773-
Wireless
San Mateo
Cellco Partnership DBA Verizon Wireless
Introduced 11/29/2001
(650) 776-
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 08/20/2000
(650) 777-
Landline
Millbrae
Pacific Bell
Introduced 08/14/1998
(650) 779-
Landline
Redwood City
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 780-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 784-
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 10/31/2000
(650) 786-
Landline
Redwood City
Pacific Bell
Introduced 07/06/1997
(650) 787-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/25/1998
(650) 793-
Wireless
Mountain View
Cellco Partnership DBA Verizon Wireless
Introduced 03/03/2001
(650) 794-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 795-
Landline
La Honda
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 796-
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 07/06/1997
(650) 798-
Landline
Palo Alto
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 799-
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 07/22/1999
(650) 800-
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 01/06/2012
(650) 801-
Landline
San Carlos
Teleport Communications Group - San Francisco
Introduced 07/06/1997
(650) 802-
Landline
San Carlos
Pacific Bell
Introduced 07/06/1997
(650) 804-
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 08/21/2002
(650) 808-
Landline
San Bruno
Pacific Bell
Introduced 11/20/1998
(650) 810-
Landline
San Jose
U.s. Telepacific Corp.
Introduced 05/10/1999
(650) 812-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 813-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 814-
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 11/20/1998
(650) 815-
Landline
Sunnyvale
Brooks Fiber Communications Of California
Introduced 07/06/1997
(650) 817-
Landline
Redwood City
Pacific Bell
Introduced 08/14/1998
(650) 821-
Landline
San Francisco
Teleport Communications Group - San Francisco
Introduced 10/13/1999
(650) 823-
Wireless
Los Altos
New Cingular Wireless PCS
Introduced 08/20/2000
(650) 825-
Landline
San Francisco
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 826-
Wireless
San Bruno
Sprint Spectrum L.p.
Introduced 08/20/2000
(650) 827-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 829-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 830-
Landline
San Carlos
Level 3 Communications
Introduced 01/25/2001
(650) 832-
Landline
San Carlos
Mpower Communications Corp
Introduced 10/11/1997
(650) 833-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 834-
Wireless
San Bruno
Metro PCS
Introduced 09/21/2001
(650) 835-
Landline
San Bruno
O1 Communications
Introduced 01/25/2001
(650) 837-
Landline
San Bruno
Pacific Bell
Introduced 06/13/2000
(650) 838-
Landline
Palo Alto
Pacific Bell
Introduced 06/13/2000
(650) 839-
Landline
Redwood City
Pacific Bell
Introduced 06/13/2000
(650) 842-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 843-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 845-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 846-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 847-
Landline
Palo Alto
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 849-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 850-
Landline
Woodside
Allegiance Telecom
Introduced 02/27/1999
(650) 851-
Landline
Woodside
Pacific Bell
Introduced 07/06/1997
(650) 852-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 853-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 854-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 855-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 856-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 857-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 858-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 859-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 860-
Landline
Pescadero
Broadwing Communications
Introduced 11/20/1998
(650) 861-
Wireless
Mountain View
T-mobile Usa
Introduced 09/19/2002
(650) 862-
Wireless
Palo Alto
New Cingular Wireless PCS
Introduced 01/14/2000
(650) 863-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/14/2000
(650) 864-
Landline
Mountain View
Pacific Bell
Introduced 08/20/2000
(650) 866-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 867-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 01/25/1998
(650) 868-
Wireless
Redwood City
New Cingular Wireless PCS
Introduced 02/27/1999
(650) 869-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 870-
Landline
San Bruno
Pac - West Telecomm
Introduced 07/06/1997
(650) 871-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 872-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 873-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 874-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 875-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 876-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 877-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 878-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 879-
Landline
Pescadero
Pacific Bell
Introduced 07/06/1997
(650) 881-
Landline
Pescadero
Teleport Communications Group - San Francisco
Introduced 02/27/1999
(650) 882-
Landline
Pescadero
Allegiance Telecom
Introduced 02/27/1999
(650) 887-
Landline
Los Altos
Pac - West Telecomm
Introduced 11/20/1998
(650) 888-
Wireless
San Mateo
New Cingular Wireless PCS
Introduced 11/20/1998
(650) 889-
Landline
Half Moon Bay
O1 Communications
Introduced 03/01/2001
(650) 892-
Wireless
San Bruno
New Cingular Wireless PCS
Introduced 03/03/2001
(650) 897-
Landline
Moss Beach
Pac - West Telecomm
Introduced 10/13/1999
(650) 898-
Landline
Pacifica
Pac - West Telecomm
Introduced 10/13/1999
(650) 899-
Landline
La Honda
Pac - West Telecomm
Introduced 10/13/1999
(650) 900-
Landline
San Jose
O1 Communications
Introduced 05/10/1999
(650) 903-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 906-
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 01/25/1998
(650) 917-
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
(650) 918-
Landline
San Mateo
AT&T Local
Introduced 08/14/1998
(650) 919-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 921-
Wireless
San Mateo
Metro PCS
Introduced 09/21/2001
(650) 922-
Wireless
San Bruno
Cellco Partnership DBA Verizon Wireless
Introduced 03/01/2001
(650) 924-
Wireless
Palo Alto
Sprint Spectrum L.p.
Introduced 10/31/2000
(650) 926-
Landline
Palo Alto
Pacific Bell
Introduced 07/06/1997
(650) 930-
Landline
Sunnyvale
Brooks Fiber Communications Of California
Introduced 07/06/1997
(650) 931-
Landline
San Mateo
U.s. Telepacific Corp.
Introduced 05/10/1999
(650) 932-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 933-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 934-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 935-
Landline
Los Altos
Mcimetro Access Transmission Services LLC
Introduced 07/06/1997
(650) 937-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 938-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 940-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 941-
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
(650) 942-
Landline
Millbrae
Cellco Partnership DBA Verizon Wireless
Introduced 08/14/1998
(650) 943-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 944-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 946-
Landline
Los Altos
Comcast Phone Of California
Introduced 07/06/1997
(650) 947-
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
(650) 948-
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
(650) 949-
Landline
Los Altos
Pacific Bell
Introduced 07/06/1997
(650) 952-
Landline
San Bruno
Pacific Bell
Introduced 07/06/1997
(650) 954-
Wireless
Brisbane
Sprint Spectrum L.p.
Introduced 10/31/2000
(650) 960-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 961-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 962-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 963-
Landline
Mountain View
Pac - West Telecomm
Introduced 05/18/1998
(650) 964-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 965-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 966-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 967-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 968-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 969-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 980-
Landline
Redwood City
Xo California
Introduced 08/14/1998
(650) 984-
Landline
Pacifica
O1 Communications
Introduced 06/25/2001
(650) 985-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 988-
Landline
Mountain View
Pacific Bell
Introduced 07/06/1997
(650) 989-
Landline
Half Moon Bay
Broadwing Communications
Introduced 06/30/2001
(650) 991-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 992-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 993-
Landline
Pacifica
Pacific Bell
Introduced 07/06/1997
(650) 994-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 995-
Landline
Redwood City
Pacific Bell
Introduced 01/25/2001
(650) 996-
Wireless
Mountain View
New Cingular Wireless PCS
Introduced 01/14/2000
(650) 997-
Landline
Colma
Pacific Bell
Introduced 07/06/1997
(650) 999-
Landline
Palo Alto
Cf Communications DBA Telekenex
Introduced 08/23/2011

Heavily Reported Numbers

Phone complaint data powered by CallerCenter.com

Most Searched Numbers

Cell
All Time
650-201-0000
650-201-0020
650-201-0033
650-201-0091
650-201-0181
650-201-0187
650-201-0193
650-201-0213
650-201-0232
650-201-0245
650-201-0279
650-201-0332
650-201-0388
650-201-0402
650-201-0425
650-201-0445
650-201-0455
650-201-0459
650-201-0495
650-201-0509
This Month
650-201-0000
650-201-0020
650-201-0033
650-201-0091
650-201-0181
650-201-0187
650-201-0193
650-201-0213
650-201-0232
650-201-0245
650-201-0279
650-201-0332
650-201-0388
650-201-0402
650-201-0425
650-201-0445
650-201-0455
650-201-0459
650-201-0495
650-201-0509
Landline
All Time
650-200-0000
650-200-0004
650-200-0084
650-200-0125
650-200-0149
650-200-0201
650-200-0243
650-200-0264
650-200-0269
650-200-0303
650-200-0407
650-200-0453
650-200-0506
650-200-0641
650-200-0699
650-200-0731
650-200-0809
650-200-0824
650-200-0957
650-200-0991
This Month
650-200-0000
650-200-0004
650-200-0084
650-200-0125
650-200-0149
650-200-0201
650-200-0243
650-200-0264
650-200-0269
650-200-0303
650-200-0407
650-200-0453
650-200-0506
650-200-0641
650-200-0699
650-200-0731
650-200-0809
650-200-0824
650-200-0957
650-200-0991