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650 Area Code

State: California
Major City: San Mateo
Timezone: Pacific
Current Time: 3:56am
Short URL: allareacodes.com/650

Area Code 650 Map

Where is area code 650?

Area code 650 is located in California and covers San Mateo, Redwood City, Mountain View, South San Francisco, and Palo Alto. It is the only area code that serves the area.

650 area code

What time zone is area code 650?

The 650 area code is located in the Pacific timezone. The Pacific time zone is also known as America/Los_Angeles. As of the last time this page was loaded, the current time is 3:56am.

History

650 was first put in service August 2, 1997. It was created from area code 415.

Nearby Area Codes

408/669 (San Jose, CA)
415/628 (San Francisco, CA)
510 (Oakland, CA)
650 (San Mateo, CA)
831 (Salinas, CA)
925 (Concord, CA)

Top 2 Counties in Area Code 650

CountyTotal Population% of 650% of County
San Mateo, CA718,45191%98%
Santa Clara, CA1,781,6429%6%

Top 39 Cities in Area Code 650

CityTotal Population% of 650% of City
San Mateo, CA97,2072%100%
Daly City, CA101,1231%84%
Redwood City, CA76,8154%100%
Mountain View, CA74,0662%99%
South San Francisco, CA63,6324%100%
Palo Alto, CA64,4033%91%
San Bruno, CA41,1141%100%
Pacifica, CA37,2342%100%
Menlo Park, CA32,0262%100%
Foster City, CA30,5672%100%
Burlingame, CA28,8061%100%
Los Altos, CA28,9761%99%
San Carlos, CA28,4061%100%
East Palo Alto, CA28,1550%100%
Belmont, CA25,8351%100%
Millbrae, CA21,5320%100%
North Fair Oaks, CA14,6870%100%
Stanford, CA13,8090%100%
Half Moon Bay, CA11,3241%100%
Hillsborough, CA10,8251%100%
Los Altos Hills, CA7,9221%100%
Atherton, CA6,9141%100%
El Granada, CA5,4671%100%
Woodside, CA5,2871%100%
Portola Valley, CA4,3531%100%
Emerald Lake Hills, CA4,2780%100%
Broadmoor, CA4,1760%100%
Highlands-Baywood Park, CA4,0270%100%
West Menlo Park, CA3,6590%100%
Loyola, CA3,2610%100%
Moss Beach, CA3,1030%100%
Cupertino, CA58,3020%5%
Montara, CA2,9090%100%
Colma, CA1,7920%100%
Brisbane, CA4,2821%42%
Ladera, CA1,4260%100%
La Honda, CA9281%100%
Pescadero, CA6431%100%
Loma Mar, CA1130%100%

Largest Telephone Carriers

Landline

Prefixes Carrier
45%Pacific Bell
4%Teleport Group - San Francisco
3%Pac - West Telecomm
3%Level 3
3%Allegiance Telecom
3%Us Telepacific
2%Xo
17%Other

Wireless

Prefixes Carrier
6%Cingular
5%Sprint
3%Verizon Wireless
2%T-mobile
1%Metro PCS
1%American Messaging Services
1%American Messaging (am)
1%Other

Prefixes

Assigned

Usage


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

Heavily Reported Numbers

Phone complaint data powered by CallerCenter.com


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