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925 Area Code

State: California
Major City: Concord
Timezone: Pacific
Current Time: 2:14pm
Short URL: allareacodes.com/925

Area Code 925 Map

Where is area code 925?

Area code 925 is located in California and covers Concord, Antioch, Livermore, San Ramon, and Pleasanton. It is the only area code that serves the area.

What time zone is area code 925?

The 925 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 2:14pm.

History

925 was first put in service March 14, 1998. It was created from area code 510.

Nearby Area Codes

209 (Stockton, CA)
279/916 (Sacramento, CA)
408/669 (San Jose, CA)
510 (Oakland, CA)
530 (Redding, CA)
650 (San Mateo, CA)
707 (Santa Rosa, CA)
925 (Concord, CA)

Top 2 Counties in Area Code 925

CountyTotal Population% of 925% of County
Contra Costa, CA1,049,02562%84%
Alameda, CA1,510,27138%51%

Top 41 Cities in Area Code 925

CityTotal Population% of 925% of City
Concord, CA122,0673%100%
Antioch, CA102,3723%100%
Livermore, CA80,9682%100%
San Ramon, CA72,1482%100%
Pleasanton, CA70,2852%100%
Walnut Creek, CA64,1732%100%
Pittsburg, CA63,2642%100%
Brentwood, CA51,4811%100%
Dublin, CA46,0361%100%
Danville, CA42,0392%100%
Martinez, CA35,8241%100%
Oakley, CA35,4321%100%
Pleasant Hill, CA33,1521%100%
Lafayette, CA23,8931%100%
Bay Point, CA21,3491%100%
Orinda, CA17,6431%100%
Moraga, CA16,0161%100%
Alamo, CA14,5701%100%
Discovery Bay, CA13,3521%97%
Clayton, CA10,8970%100%
Blackhawk, CA9,3541%100%
Contra Costa Centre, CA5,3640%100%
Saranap, CA5,2020%100%
Vine Hill, CA3,7610%100%
Pacheco, CA3,6850%100%
San Miguel, CA3,3920%100%
Reliez Valley, CA3,1010%100%
Mountain View, CA2,3720%100%
Camino Tassajara, CA2,1970%100%
Bethel Island, CA2,1371%100%
Knightsen, CA1,5681%100%
Castle Hill, CA1,2990%100%
Byron, CA1,2771%100%
Diablo, CA1,1580%100%
Acalanes Ridge, CA1,1370%100%
Shell Ridge, CA9590%100%
Norris Canyon, CA9570%100%
Alhambra Valley, CA9240%100%
Sunol, CA9132%92%
North Gate, CA6790%100%
Clyde, CA6780%100%

Largest Telephone Carriers

Landline

Prefixes Carrier
28%Pacific Bell
5%Pac - West Telecomm
5%Us Telepacific
4%Teleport Group - San Francisco
3%Xo
3%Mcimetro Access Transmission Services
3%Level 3
17%Other

Wireless

Prefixes Carrier
10%Pacific Bell
7%Cingular
6%Sprint
5%Verizon Wireless
2%T-mobile
1%American Messaging Services
1%American Messaging (am)
3%Other

Prefixes

Assigned

Usage


Prefix
Usage
Primary City
Carrier
Introduced
(925) 200-
Pleasanton
Cellco Partnership DBA Verizon Wireless
05/18/1998
(925) 201-
Pleasanton
Mpower Communications Corp
05/18/1998
(925) 202-
Pleasanton
Sprint Spectrum
05/10/1999
(925) 203-
Pittsburg
New Cingular Wireless PCS
02/22/2002
(925) 205-
Antioch
American Messaging Services
05/10/1999
(925) 206-
Antioch
Cellco Partnership DBA Verizon Wireless
08/29/2007
(925) 207-
Concord
Sprint Spectrum
10/18/2001
(925) 208-
Danville
Teleport Communications Group - San Francisco
05/10/1999
(925) 209-
Pleasanton
Sprint Spectrum
08/14/1998
(925) 210-
Walnut Creek
Pacific Bell
05/18/1998
(925) 212-
Walnut Creek
New Cingular Wireless PCS
05/10/1999
(925) 213-
Walnut Creek
Usa Mobility Wireless
11/20/1998
(925) 215-
Livermore
Broadwing Communications
05/10/1999
(925) 216-
San Ramon
New Cingular Wireless PCS
11/20/1998
(925) 217-
Danville
Broadwing Communications
05/10/1999
(925) 218-
Pleasanton
Broadwing Communications
05/10/1999
(925) 219-
Antioch
Broadwing Communications
05/10/1999
(925) 220-
Walnut Creek
American Messaging Services
05/10/1999
(925) 221-
Walnut Creek
33 Wireless Inc.
07/22/1999
(925) 222-
Concord
Cf Communications DBA Telekenex
09/09/2010
(925) 223-
Pleasanton
Mcimetro Access Transmission Services LLC
05/10/1999
(925) 224-
Pleasanton
Pacific Bell
05/18/1998
(925) 225-
Pleasanton
Pacific Bell
05/18/1998
(925) 226-
Fremont
Xo California
02/27/1999
(925) 227-
Pleasanton
Pacific Bell
05/18/1998
(925) 228-
Martinez
Pacific Bell
05/18/1998
(925) 229-
Martinez
Pacific Bell
05/18/1998
(925) 230-
San Ramon
Level 3 Communications
10/13/1999
(925) 231-
Martinez
Level 3 Communications
05/10/1999
(925) 232-
Pittsburg
Level 3 Communications
05/10/1999
(925) 233-
Sunol
Level 3 Communications
05/10/1999
(925) 234-
Antioch
Level 3 Communications
05/10/1999
(925) 235-
Moraga
Level 3 Communications
05/10/1999
(925) 236-
San Ramon
Broadwing Communications
03/03/2001
(925) 237-
Antioch
Xo California
07/22/1999
(925) 238-
Antioch
Comcast Phone Of California
10/31/2008
(925) 239-
Walnut Creek
Peerless Network Of California
03/25/2013
(925) 240-
Brentwood
Pacific Bell
05/10/1999
(925) 241-
San Ramon
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 242-
San Ramon
Pacific Bell
05/10/1999
(925) 243-
Livermore
Pacific Bell
05/10/1999
(925) 244-
San Ramon
Pacific Bell
05/18/1998
(925) 245-
Livermore
Pacific Bell
05/10/1999
(925) 246-
Concord
Pacific Bell
05/18/1998
(925) 247-
Moraga
Pacific Bell
05/10/1999
(925) 248-
San Ramon
Pacific Bell
05/18/1998
(925) 249-
Pleasanton
Pacific Bell
05/10/1999
(925) 250-
Concord
Sprint Spectrum
05/10/1999
(925) 251-
Pleasanton
Pacific Bell
05/10/1999
(925) 252-
Pittsburg
Pacific Bell
05/10/1999
(925) 253-
Orinda
Pacific Bell
05/18/1998
(925) 254-
Orinda
Pacific Bell
05/18/1998
(925) 255-
Orinda
Mci Worldcom Communications, CA
05/18/1998
(925) 256-
Walnut Creek
Pacific Bell
05/18/1998
(925) 257-
Orinda
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 258-
Orinda
Pacific Bell
05/18/1998
(925) 259-
Orinda
Xo California
02/27/1999
(925) 260-
Walnut Creek
Sprint Spectrum
05/10/1999
(925) 261-
Pittsburg
Pacific Bell
05/10/1999
(925) 262-
Oakland
Global Crossing Local Services-ca
05/10/1999
(925) 263-
Danville
Global Crossing Local Services-ca
05/10/1999
(925) 264-
Pleasanton
Global Crossing Local Services-ca
05/10/1999
(925) 265-
Concord
Global Crossing Local Services-ca
05/10/1999
(925) 267-
Pittsburg
Xo California
07/22/1999
(925) 268-
Moraga
Xo California
07/22/1999
(925) 269-
Martinez
Xo California
07/22/1999
(925) 270-
Concord
Broadwing Communications
05/10/1999
(925) 271-
Pleasanton
Teleport Communications Group - San Francisco
05/10/1999
(925) 272-
Danville
Level 3 Communications
05/10/1999
(925) 273-
Livermore
Xo California
07/22/1999
(925) 274-
Walnut Creek
Pacific Bell
05/18/1998
(925) 275-
San Ramon
Pacific Bell
05/18/1998
(925) 276-
Clayton
Xo California
07/22/1999
(925) 277-
San Ramon
Pacific Bell
05/18/1998
(925) 278-
Walnut Creek
Comcast Phone Of California
10/24/2013
(925) 279-
Walnut Creek
Pacific Bell
05/18/1998
(925) 280-
Walnut Creek
Pacific Bell
05/18/1998
(925) 281-
Antioch
Pac - West Telecomm
05/10/1999
(925) 282-
Lafayette
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 283-
Lafayette
Pacific Bell
05/18/1998
(925) 284-
Lafayette
Pacific Bell
05/18/1998
(925) 285-
Walnut Creek
New Cingular Wireless PCS
05/10/1999
(925) 286-
Walnut Creek
New Cingular Wireless PCS
05/10/1999
(925) 287-
Walnut Creek
Pacific Bell
07/22/1999
(925) 288-
Concord
Pacific Bell
07/22/1999
(925) 289-
Walnut Creek
Ymax Communications Corp.
02/23/2009
(925) 290-
Livermore
Xo California
07/22/1999
(925) 291-
Pittsburg
Xo California
07/22/1999
(925) 292-
Livermore
Comcast Phone Of California
05/18/1998
(925) 293-
Martinez
Pac - West Telecomm
07/22/1999
(925) 294-
Livermore
Pacific Bell
05/18/1998
(925) 295-
Walnut Creek
Pacific Bell
05/18/1998
(925) 296-
Walnut Creek
Pacific Bell
05/18/1998
(925) 297-
Lafayette
Xo California
02/27/1999
(925) 298-
Lafayette
Mci Worldcom Communications, CA
05/18/1998
(925) 299-
Lafayette
Pacific Bell
05/18/1998
(925) 300-
Walnut Creek
O1 Communications
05/10/1999
(925) 301-
Antioch
O1 Communications
05/10/1999
(925) 302-
San Ramon
Tw Telecom Of California Lp
05/10/1999
(925) 303-
Antioch
Tw Telecom Of California Lp
05/10/1999
(925) 304-
Walnut Creek
Level 3 Communications
05/10/1999
(925) 305-
Concord
Tw Telecom Of California Lp
05/10/1999
(925) 307-
San Ramon
Tw Telecom Of California Lp
05/10/1999
(925) 308-
Brentwood
Tw Telecom Of California Lp
05/10/1999
(925) 309-
Walnut Creek
Tw Telecom Of California Lp
05/10/1999
(925) 310-
Lafayette
Tw Telecom Of California Lp
05/10/1999
(925) 312-
Antioch
Usa Mobility Wireless
05/18/1998
(925) 313-
Martinez
Pacific Bell
05/18/1998
(925) 314-
Danville
Pacific Bell
05/18/1998
(925) 315-
Livermore
Tw Telecom Of California Lp
05/10/1999
(925) 316-
Walnut Creek
Level 3 Communications
05/10/1999
(925) 317-
Walnut Creek
O1 Communications
05/10/1999
(925) 318-
Walnut Creek
Tw Telecom Of California Lp
05/10/1999
(925) 319-
Sunol
T-mobile Usa
05/10/1999
(925) 320-
Moraga
U.s. Telepacific Corp.
03/27/2001
(925) 321-
Livermore
New Cingular Wireless PCS
11/30/2001
(925) 322-
Walnut Creek
Bandwidth.com Clec
05/10/2011
(925) 323-
Walnut Creek
New Cingular Wireless PCS
11/20/1998
(925) 324-
Walnut Creek
Cellco Partnership DBA Verizon Wireless
08/21/2002
(925) 325-
Pittsburg
T-mobile Usa
12/28/2001
(925) 326-
Concord
Level 3 Communications
05/29/2013
(925) 327-
San Ramon
Pacific Bell
05/18/1998
(925) 328-
San Ramon
Pacific Bell
05/18/1998
(925) 330-
Walnut Creek
New Cingular Wireless PCS
11/30/2001
(925) 331-
Antioch
U.s. Telepacific Corp.
07/17/2001
(925) 332-
Concord
Peerless Network Of California
10/04/2012
(925) 333-
Walnut Creek
American Messaging (am)
07/22/1999
(925) 334-
Concord
Cellco Partnership DBA Verizon Wireless
07/19/2011
(925) 335-
Martinez
Pacific Bell
05/18/1998
(925) 336-
San Ramon
New Cingular Wireless PCS
12/28/2001
(925) 337-
Livermore
Cellco Partnership DBA Verizon Wireless
01/28/2002
(925) 338-
Concord
Bandwidth.com Clec
07/22/2011
(925) 339-
Livermore
Metro PCS
09/21/2001
(925) 340-
Walnut Creek
Usa Mobility Wireless
05/18/1998
(925) 341-
Antioch
American Messaging (am)
06/13/2000
(925) 342-
Antioch
American Messaging (am)
05/10/1999
(925) 343-
Pleasanton
American Messaging Services
05/10/1999
(925) 344-
Livermore
Mpower Communications Corp
05/18/1998
(925) 345-
Danville
American Messaging (am)
07/22/1999
(925) 346-
Concord
American Messaging (am)
07/22/1999
(925) 347-
Livermore
American Messaging (am)
07/22/1999
(925) 348-
Concord
New Cingular Wireless PCS
01/28/2002
(925) 349-
Concord
Teleport Communications Group - San Francisco
08/14/1998
(925) 350-
Antioch
Comcast Phone Of California
09/13/2011
(925) 351-
Pleasanton
Sprint Spectrum
05/10/1999
(925) 352-
Pleasanton
Sprint Spectrum
05/10/1999
(925) 353-
Fremont
New Cingular Wireless PCS
01/28/2002
(925) 354-
Antioch
New Cingular Wireless PCS
01/28/2002
(925) 355-
San Ramon
Pacific Bell
05/18/1998
(925) 356-
Concord
Pacific Bell
05/18/1998
(925) 357-
Walnut Creek
Level 3 Communications
09/13/2011
(925) 358-
San Ramon
Pacific Bell
05/18/1998
(925) 359-
San Ramon
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 360-
Walnut Creek
New Cingular Wireless PCS
10/13/1999
(925) 361-
San Ramon
Teleport Communications Group - San Francisco
07/22/1999
(925) 362-
Danville
Pacific Bell
05/18/1998
(925) 363-
Concord
Pacific Bell
05/18/1998
(925) 364-
Hayward
Mci Worldcom Communications, CA
01/14/2000
(925) 365-
San Ramon
Teleport Communications Group - San Francisco
08/14/1998
(925) 366-
Pleasanton
Sprint Spectrum
07/22/1999
(925) 367-
Pleasanton
Sprint Spectrum
07/22/1999
(925) 368-
Pleasanton
Sprint Spectrum
07/22/1999
(925) 369-
Martinez
Pac - West Telecomm
05/18/1998
(925) 370-
Martinez
Pacific Bell
05/18/1998
(925) 371-
Livermore
Pacific Bell
05/18/1998
(925) 372-
Martinez
Pacific Bell
05/18/1998
(925) 373-
Livermore
Pacific Bell
05/18/1998
(925) 374-
Martinez
Allegiance Telecom
10/31/2000
(925) 376-
Moraga
Pacific Bell
05/18/1998
(925) 377-
Moraga
Pacific Bell
05/18/1998
(925) 380-
San Ramon
Level 3 Communications
06/30/2001
(925) 381-
Concord
New Cingular Wireless PCS
07/22/1999
(925) 382-
Antioch
Sprint Spectrum
07/22/1999
(925) 383-
Concord
Sprint Spectrum
07/22/1999
(925) 385-
Oakland
Teleport Communications Group - San Francisco
10/13/1999
(925) 386-
Oakland
Teleport Communications Group - San Francisco
10/13/1999
(925) 387-
Martinez
Teleport Communications Group - San Francisco
10/13/1999
(925) 388-
Oakland
Teleport Communications Group - San Francisco
10/13/1999
(925) 389-
Danville
New Cingular Wireless PCS
11/30/2001
(925) 391-
Concord
Level 3 Communications
11/25/2013
(925) 392-
Brentwood
Teleport Communications Group - San Francisco
03/03/2001
(925) 394-
San Ramon
Global Crossing Local Services-ca
01/14/2000
(925) 395-
Walnut Creek
AT&T Local
03/03/2001
(925) 396-
Pleasanton
Pac - West Telecomm
05/18/1998
(925) 397-
Pleasanton
Pac - West Telecomm
05/18/1998
(925) 398-
Pleasanton
Teleport Communications Group - San Francisco
05/18/1998
(925) 399-
Pleasanton
Comcast Phone Of California
05/18/1998
(925) 400-
Pleasanton
O1 Communications
05/10/1999
(925) 401-
Pleasanton
Allegiance Telecom
07/22/1999
(925) 402-
Orinda
Allegiance Telecom
07/22/1999
(925) 403-
Lafayette
Allegiance Telecom
07/22/1999
(925) 404-
San Ramon
Allegiance Telecom
07/22/1999
(925) 405-
Concord
Allegiance Telecom
07/22/1999
(925) 406-
Danville
Allegiance Telecom
07/22/1999
(925) 407-
Walnut Creek
Allegiance Telecom
07/22/1999
(925) 408-
Concord
New Cingular Wireless PCS
06/30/2001
(925) 410-
Martinez
American Messaging Services
10/13/1999
(925) 413-
San Ramon
New Cingular Wireless PCS
01/14/2000
(925) 415-
San Ramon
Broadwing Communications
06/30/2001
(925) 416-
Pleasanton
Pacific Bell
05/18/1998
(925) 417-
Pleasanton
Pacific Bell
05/18/1998
(925) 418-
Brentwood
Broadwing Communications
06/30/2001
(925) 419-
San Ramon
American Messaging Services
07/22/1999
(925) 420-
Brentwood
O1 Communications
06/30/2001
(925) 421-
Concord
Bandwidth.com Clec
01/27/2012
(925) 422-
Livermore
Pacific Bell
05/18/1998
(925) 423-
Livermore
Pacific Bell
05/18/1998
(925) 424-
Livermore
Pacific Bell
05/18/1998
(925) 425-
Pleasanton
Teleport Communications Group - San Francisco
10/13/1999
(925) 426-
Pleasanton
Pacific Bell
05/18/1998
(925) 427-
Pittsburg
Pacific Bell
05/18/1998
(925) 428-
Antioch
T-mobile Usa
04/19/2013
(925) 429-
Concord
Broadwing Communications
06/13/2000
(925) 431-
Pittsburg
Pacific Bell
05/18/1998
(925) 432-
Pittsburg
Pacific Bell
05/18/1998
(925) 435-
Concord
T-mobile Usa
03/03/2001
(925) 437-
Antioch
New Cingular Wireless PCS
08/20/2000
(925) 438-
Orinda
U.s. Telepacific Corp.
10/31/2000
(925) 439-
Pittsburg
Pacific Bell
05/18/1998
(925) 443-
Livermore
Pacific Bell
05/18/1998
(925) 444-
Lafayette
U.s. Telepacific Corp.
06/30/2001
(925) 446-
Concord
Sprint Spectrum
06/25/2012
(925) 447-
Livermore
Pacific Bell
05/18/1998
(925) 448-
Walnut Creek
Cellco Partnership DBA Verizon Wireless
04/28/2014
(925) 449-
Livermore
Pacific Bell
05/18/1998
(925) 451-
Walnut Creek
New Cingular Wireless PCS
07/22/1999
(925) 452-
San Ramon
U.s. Telepacific Corp.
08/20/2000
(925) 453-
Livermore
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 454-
Livermore
Pacific Bell
05/18/1998
(925) 455-
Livermore
Pacific Bell
05/18/1998
(925) 456-
Livermore
Pacific Bell
05/18/1998
(925) 457-
Walnut Creek
Sprint Spectrum
10/31/2000
(925) 458-
Pittsburg
Pacific Bell
05/18/1998
(925) 459-
Concord
Broadwing Communications
05/10/1999
(925) 460-
Pleasanton
Pacific Bell
05/18/1998
(925) 461-
Pleasanton
Pacific Bell
05/18/1998
(925) 462-
Pleasanton
Pacific Bell
05/18/1998
(925) 463-
Pleasanton
Pacific Bell
05/18/1998
(925) 464-
Walnut Creek
Cellco Partnership DBA Verizon Wireless
08/16/2012
(925) 465-
Walnut Creek
Broadwing Communications
01/14/2000
(925) 467-
Pleasanton
Pacific Bell
05/18/1998
(925) 468-
Pleasanton
Pacific Bell
05/18/1998
(925) 469-
Pleasanton
Pacific Bell
05/18/1998
(925) 470-
Antioch
Teleport Communications Group - San Francisco
05/18/1998
(925) 472-
Walnut Creek
Pacific Bell
05/18/1998
(925) 473-
Pittsburg
Pacific Bell
05/18/1998
(925) 474-
Pleasanton
U.s. Telepacific Corp.
08/20/2000
(925) 475-
Pleasanton
Pac - West Telecomm
10/13/1999
(925) 476-
Oakland
Pac - West Telecomm
10/13/1999
(925) 478-
Walnut Creek
Level 3 Communications
02/27/1999
(925) 479-
San Ramon
Pacific Bell
10/31/2000
(925) 480-
San Ramon
U.s. Telepacific Corp.
05/18/1998
(925) 481-
Antioch
New Cingular Wireless PCS
03/24/2014
(925) 482-
Walnut Creek
U.s. Telepacific Corp.
10/31/2000
(925) 484-
Pleasanton
Pacific Bell
05/18/1998
(925) 485-
Pleasanton
Pacific Bell
05/18/1998
(925) 487-
San Ramon
New Cingular Wireless PCS
06/13/2000
(925) 490-
Bandwidth.com Clec
05/23/2014
(925) 493-
Livermore
Teleport Communications Group - San Francisco
10/31/2000
(925) 497-
Concord
Metro PCS
08/22/2001
(925) 498-
San Ramon
U.s. Telepacific Corp.
03/03/2001
(925) 500-
Martinez
O1 Communications
05/10/1999
(925) 509-
San Ramon
Usa Mobility Wireless
11/20/1998
(925) 513-
Brentwood
Pacific Bell
05/18/1998
(925) 516-
Brentwood
Pacific Bell
05/18/1998
(925) 517-
Pittsburg
O1 Communications
05/18/2001
(925) 518-
Livermore
Sprint Spectrum
08/14/1998
(925) 519-
Pleasanton
Cellco Partnership DBA Verizon Wireless
11/20/1998
(925) 520-
Pleasanton
Pacific Bell
10/13/1999
(925) 521-
Concord
Pacific Bell
10/13/1999
(925) 522-
Antioch
Pacific Bell
10/13/1999
(925) 523-
Pleasanton
Pacific Bell
01/14/2000
(925) 524-
Clayton
Pacific Bell
01/14/2000
(925) 525-
Livermore
Sprint Spectrum
08/20/2000
(925) 526-
Pittsburg
U.s. Telepacific Corp.
08/20/2000
(925) 527-
Walnut Creek
The Telephone Connection Local Services
10/31/2000
(925) 528-
Orinda
Sprint Spectrum
10/31/2000
(925) 529-
Antioch
Cf Communications DBA Telekenex
11/22/2010
(925) 535-
Pleasanton
Sprint Spectrum
10/31/2000
(925) 543-
San Ramon
Pacific Bell
05/18/1998
(925) 548-
San Ramon
New Cingular Wireless PCS
01/14/2000
(925) 549-
San Ramon
New Cingular Wireless PCS
01/14/2000
(925) 550-
Antioch
New Cingular Wireless PCS
02/27/1999
(925) 551-
San Ramon
Pacific Bell
05/18/1998
(925) 552-
Danville
Pacific Bell
05/18/1998
(925) 553-
Danville
Xo California
02/27/1999
(925) 556-
San Ramon
Pacific Bell
05/18/1998
(925) 557-
San Ramon
Mci Worldcom Communications, CA
05/18/1998
(925) 558-
San Ramon
Xo California
02/27/1999
(925) 560-
San Ramon
Pacific Bell
05/18/1998
(925) 565-
Antioch
Metro PCS
09/21/2001
(925) 566-
Concord
AT&T Local
05/10/1999
(925) 567-
Clayton
Sprint Spectrum
07/17/2001
(925) 568-
Sunol
Teleport Communications Group - San Francisco
01/14/2000
(925) 570-
San Ramon
Sprint Spectrum
05/10/1999
(925) 571-
San Ramon
North County Communications Corp.
06/13/2000
(925) 572-
Pleasanton
North County Communications Corp.
06/13/2000
(925) 573-
Pittsburg
North County Communications Corp.
06/13/2000
(925) 574-
San Ramon
U.s. Telepacific Corp.
06/27/2001
(925) 575-
Danville
Sprint Spectrum
03/03/2001
(925) 577-
San Ramon
T-mobile Usa
09/19/2001
(925) 579-
Livermore
Allegiance Telecom
04/24/2001
(925) 580-
Pleasanton
Sprint Spectrum
07/22/1999
(925) 583-
Livermore
U.s. Telepacific Corp.
08/20/2000
(925) 584-
Antioch
Sprint Spectrum
10/31/2000
(925) 585-
Concord
American Messaging Services
08/14/1998
(925) 586-
Concord
Cellco Partnership DBA Verizon Wireless
06/13/2000
(925) 587-
San Ramon
Mpower Communications Corp
06/13/2000
(925) 588-
Walnut Creek
Mpower Communications Corp
06/13/2000
(925) 592-
Walnut Creek
Mpower Communications Corp
11/20/1998
(925) 594-
Danville
Metro PCS
09/21/2001
(925) 595-
Concord
Sprint Spectrum
05/18/2001
(925) 596-
Pleasanton
Cellco Partnership DBA Verizon Wireless
08/20/2000
(925) 597-
Pittsburg
Cellco Partnership DBA Verizon Wireless
06/13/2000
(925) 598-
Pleasanton
Pacific Bell
08/14/1998
(925) 600-
Pleasanton
Pacific Bell
02/27/1999
(925) 602-
Concord
Pacific Bell
05/18/1998
(925) 603-
Concord
Pacific Bell
05/18/1998
(925) 605-
Livermore
Pac - West Telecomm
11/20/1998
(925) 606-
Livermore
Pacific Bell
05/18/1998
(925) 608-
Martinez
Broadwing Communications
03/01/2001
(925) 609-
Concord
Pacific Bell
05/18/1998
(925) 621-
Pleasanton
U.s. Telepacific Corp.
04/26/2001
(925) 623-
Pleasanton
Sprint Spectrum
10/31/2000
(925) 625-
Oakley
Pacific Bell
05/18/1998
(925) 626-
Brentwood
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 627-
Walnut Creek
U.s. Telepacific Corp.
03/27/2001
(925) 628-
Antioch
Cellco Partnership DBA Verizon Wireless
08/20/2000
(925) 631-
Moraga
Pacific Bell
05/18/1998
(925) 634-
Brentwood
Pacific Bell
05/18/1998
(925) 635-
Pittsburg
Teleport Communications Group - San Francisco
08/20/2000
(925) 639-
Walnut Creek
T-mobile Usa
10/18/2001
(925) 640-
San Ramon
New Cingular Wireless PCS
02/27/1999
(925) 642-
Antioch
New Cingular Wireless PCS
03/03/2001
(925) 643-
Pittsburg
U.s. Telepacific Corp.
05/21/2001
(925) 646-
Concord
Pacific Bell
05/18/1998
(925) 648-
Danville
Pacific Bell
05/18/1998
(925) 658-
Walnut Creek
Teleport Communications Group - San Francisco
06/13/2000
(925) 659-
San Ramon
Teleport Communications Group - San Francisco
06/13/2000
(925) 660-
Pleasanton
Tw Telecom Of California Lp
08/14/1998
(925) 663-
Sunol
Pac - West Telecomm
07/22/1999
(925) 664-
Pittsburg
Pac - West Telecomm
07/22/1999
(925) 665-
Pittsburg
Pac - West Telecomm
07/22/1999
(925) 666-
Brentwood
Pac - West Telecomm
07/22/1999
(925) 667-
Livermore
U.s. Telepacific Corp.
05/18/2001
(925) 671-
Concord
Pacific Bell
05/18/1998
(925) 672-
Clayton
Pacific Bell
05/18/1998
(925) 673-
Clayton
Pacific Bell
05/18/1998
(925) 674-
Concord
Pacific Bell
05/18/1998
(925) 675-
Concord
Pacific Bell
05/18/1998
(925) 676-
Concord
Pacific Bell
05/18/1998
(925) 677-
Concord
Pacific Bell
05/18/1998
(925) 678-
Danville
U.s. Telepacific Corp.
08/20/2000
(925) 679-
Oakley
Pacific Bell
05/18/1998
(925) 680-
Concord
Pacific Bell
05/18/1998
(925) 681-
Concord
Pacific Bell
05/18/1998
(925) 682-
Concord
Pacific Bell
05/18/1998
(925) 683-
Danville
New Cingular Wireless PCS
05/10/1999
(925) 684-
Oakley
Pacific Bell
05/18/1998
(925) 685-
Concord
Pacific Bell
05/18/1998
(925) 686-
Concord
Pacific Bell
05/18/1998
(925) 687-
Concord
Pacific Bell
05/18/1998
(925) 688-
Concord
Pacific Bell
05/18/1998
(925) 689-
Concord
Pacific Bell
05/18/1998
(925) 690-
Clayton
Mcimetro Access Transmission Services LLC
02/27/1999
(925) 691-
Concord
Pacific Bell
05/18/1998
(925) 692-
Concord
Pacific Bell
05/18/1998
(925) 693-
Clayton
Teleport Communications Group - San Francisco
10/31/2000
(925) 694-
Pleasanton
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 695-
Concord
Mpower Communications Corp
05/18/1998
(925) 698-
Pittsburg
New Cingular Wireless PCS
01/14/2000
(925) 699-
Pleasanton
New Cingular Wireless PCS
01/14/2000
(925) 701-
Pleasanton
U.s. Telepacific Corp.
06/13/2000
(925) 705-
Walnut Creek
Metro PCS
08/22/2001
(925) 706-
Antioch
Pacific Bell
05/18/1998
(925) 708-
Walnut Creek
Cellco Partnership DBA Verizon Wireless
01/26/2001
(925) 709-
Pittsburg
Pacific Bell
05/18/1998
(925) 718-
Danville
O1 Communications
01/26/2001
(925) 719-
San Ramon
Cellco Partnership DBA Verizon Wireless
04/16/2002
(925) 723-
Martinez
Mpower Communications Corp
06/13/2000
(925) 724-
Livermore
Mpower Communications Corp
06/13/2000
(925) 725-
Danville
Mpower Communications Corp
06/13/2000
(925) 726-
Concord
Mpower Communications Corp
01/14/2000
(925) 727-
Antioch
Mpower Communications Corp
06/13/2000
(925) 730-
Pleasanton
Pacific Bell
05/18/1998
(925) 732-
Antioch
Cf Communications DBA Telekenex
11/02/2011
(925) 734-
Pleasanton
Pacific Bell
05/18/1998
(925) 735-
Danville
Pacific Bell
05/18/1998
(925) 736-
Danville
Pacific Bell
05/18/1998
(925) 737-
Pleasanton
Pacific Bell
05/18/1998
(925) 738-
Pleasanton
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 742-
Livermore
American Messaging Services
01/14/2000
(925) 743-
Danville
Pacific Bell
05/18/1998
(925) 746-
Walnut Creek
Pacific Bell
05/18/1998
(925) 750-
Pleasanton
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 752-
Antioch
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 753-
Antioch
Pacific Bell
05/18/1998
(925) 754-
Antioch
Pacific Bell
05/18/1998
(925) 755-
Antioch
Pacific Bell
08/14/1998
(925) 756-
Antioch
Pacific Bell
05/18/1998
(925) 757-
Antioch
Pacific Bell
05/18/1998
(925) 759-
Antioch
New Cingular Wireless PCS
06/13/2000
(925) 762-
San Ramon
Pacific Bell
02/27/1999
(925) 765-
Walnut Creek
Sprint Spectrum
06/13/2000
(925) 766-
Walnut Creek
Sprint Spectrum
11/20/1998
(925) 768-
Concord
Cellco Partnership DBA Verizon Wireless
06/25/2001
(925) 771-
Concord
U.s. Telepacific Corp.
03/01/2001
(925) 775-
Antioch
Pac - West Telecomm
05/18/1998
(925) 776-
Antioch
Pacific Bell
05/18/1998
(925) 777-
Antioch
Pacific Bell
05/18/1998
(925) 778-
Antioch
Pacific Bell
05/18/1998
(925) 779-
Antioch
Pacific Bell
05/18/1998
(925) 783-
Antioch
Cellco Partnership DBA Verizon Wireless
05/10/1999
(925) 784-
Livermore
Cellco Partnership DBA Verizon Wireless
05/10/1999
(925) 785-
San Ramon
Cellco Partnership DBA Verizon Wireless
05/10/1999
(925) 786-
San Ramon
Cellco Partnership DBA Verizon Wireless
05/10/1999
(925) 787-
Concord
Cellco Partnership DBA Verizon Wireless
05/10/1999
(925) 788-
Walnut Creek
Cellco Partnership DBA Verizon Wireless
05/10/1999
(925) 789-
Sunol
Cellco Partnership DBA Verizon Wireless
05/10/1999
(925) 790-
San Ramon
Pacific Bell
01/26/2001
(925) 791-
Concord
U.s. Telepacific Corp.
07/16/2001
(925) 794-
Moraga
O1 Communications
07/17/2001
(925) 798-
Concord
Pacific Bell
05/18/1998
(925) 800-
Livermore
O1 Communications
05/10/1999
(925) 803-
San Ramon
Pacific Bell
05/18/1998
(925) 804-
San Ramon
Teleport Communications Group - San Francisco
05/18/1998
(925) 806-
San Ramon
Pacific Bell
05/18/1998
(925) 807-
San Ramon
Xo California
02/27/1999
(925) 808-
Concord
Pacific Bell
05/10/1999
(925) 809-
Brentwood
U.s. Telepacific Corp.
03/01/2001
(925) 812-
Martinez
Metro PCS
09/21/2001
(925) 813-
Antioch
Cellco Partnership DBA Verizon Wireless
08/21/2002
(925) 815-
Danville
Pacific Bell
05/18/1998
(925) 817-
Walnut Creek
Pacific Bell
07/22/1999
(925) 818-
Walnut Creek
New Cingular Wireless PCS
10/13/1999
(925) 819-
San Ramon
New Cingular Wireless PCS
10/13/1999
(925) 820-
Danville
Pacific Bell
05/18/1998
(925) 822-
Concord
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 823-
San Ramon
Pacific Bell
05/18/1998
(925) 824-
San Ramon
Pacific Bell
05/18/1998
(925) 825-
Concord
Pacific Bell
05/18/1998
(925) 826-
Concord
Mci Worldcom Communications, CA
05/18/1998
(925) 827-
Concord
Pacific Bell
05/18/1998
(925) 828-
San Ramon
Pacific Bell
05/18/1998
(925) 829-
San Ramon
Pacific Bell
05/18/1998
(925) 830-
San Ramon
Pacific Bell
05/18/1998
(925) 831-
Danville
Pacific Bell
05/18/1998
(925) 833-
San Ramon
Pacific Bell
05/18/1998
(925) 835-
Sunol
U.s. Telepacific Corp.
08/20/2000
(925) 837-
Danville
Pacific Bell
05/18/1998
(925) 838-
Danville
Pacific Bell
05/18/1998
(925) 839-
Martinez
U.s. Telepacific Corp.
04/24/2001
(925) 842-
San Ramon
Pacific Bell
05/18/1998
(925) 843-
San Ramon
Tw Telecom Of California Lp
05/20/2010
(925) 844-
Clayton
U.s. Telepacific Corp.
07/17/2001
(925) 846-
Pleasanton
Pacific Bell
05/18/1998
(925) 847-
Pleasanton
Pacific Bell
05/18/1998
(925) 848-
Antioch
Pac - West Telecomm
01/14/2000
(925) 849-
Concord
U.s. Telepacific Corp.
08/20/2000
(925) 852-
Concord
Xo California
04/24/2001
(925) 854-
Danville
Mci Worldcom Communications, CA
05/18/1998
(925) 855-
Danville
Pacific Bell
05/18/1998
(925) 856-
Danville
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 858-
San Ramon
New Cingular Wireless PCS
02/27/1999
(925) 860-
Fremont
Xo California
02/27/1999
(925) 862-
Sunol
Pacific Bell
05/18/1998
(925) 864-
Concord
Sprint Spectrum
08/20/2000
(925) 866-
San Ramon
Pacific Bell
05/18/1998
(925) 867-
San Ramon
Pacific Bell
05/18/1998
(925) 871-
Oakland
Pac - West Telecomm
11/20/1998
(925) 872-
Pleasanton
Cellco Partnership DBA Verizon Wireless
02/27/1999
(925) 875-
San Ramon
Pacific Bell
05/10/1999
(925) 876-
Walnut Creek
New Cingular Wireless PCS
11/20/1998
(925) 878-
Lafayette
Sprint Spectrum
08/20/2000
(925) 884-
San Ramon
Pac - West Telecomm
05/10/1999
(925) 885-
Oakland
Pac - West Telecomm
05/10/1999
(925) 886-
Danville
Pac - West Telecomm
05/10/1999
(925) 887-
Concord
Pac - West Telecomm
05/10/1999
(925) 888-
Oakland
Pac - West Telecomm
05/10/1999
(925) 889-
Clayton
Pac - West Telecomm
05/10/1999
(925) 890-
Concord
New Cingular Wireless PCS
11/20/1998
(925) 891-
Oakland
Pac - West Telecomm
05/10/1999
(925) 892-
Pleasanton
Pac - West Telecomm
05/10/1999
(925) 895-
San Ramon
Sprint Spectrum
08/20/2000
(925) 899-
Walnut Creek
New Cingular Wireless PCS
05/10/1999
(925) 900-
Lafayette
O1 Communications
05/10/1999
(925) 901-
San Ramon
Pacific Bell
05/18/1998
(925) 904-
San Ramon
Pacific Bell
05/18/1998
(925) 905-
San Ramon
Pac - West Telecomm
05/10/1999
(925) 906-
Walnut Creek
Pacific Bell
05/18/1998
(925) 913-
San Ramon
T-mobile Usa
09/20/2002
(925) 914-
Clayton
T-mobile Usa
09/20/2002
(925) 915-
Danville
T-mobile Usa
09/20/2002
(925) 917-
Martinez
T-mobile Usa
09/20/2002
(925) 918-
Pleasanton
Cellco Partnership DBA Verizon Wireless
06/13/2000
(925) 920-
Walnut Creek
Usa Mobility Wireless
08/14/1998
(925) 922-
Pleasanton
T-mobile Usa
09/20/2002
(925) 924-
Pleasanton
Pacific Bell
05/10/1999
(925) 926-
Walnut Creek
Pacific Bell
05/18/1998
(925) 927-
Walnut Creek
Pacific Bell
05/18/1998
(925) 930-
Walnut Creek
Pacific Bell
05/18/1998
(925) 931-
Pleasanton
Pacific Bell
05/10/1999
(925) 932-
Walnut Creek
Pacific Bell
05/18/1998
(925) 933-
Walnut Creek
Pacific Bell
05/18/1998
(925) 934-
Walnut Creek
Pacific Bell
05/18/1998
(925) 935-
Walnut Creek
Pacific Bell
05/18/1998
(925) 937-
Walnut Creek
Pacific Bell
05/18/1998
(925) 938-
Walnut Creek
Pacific Bell
05/18/1998
(925) 939-
Walnut Creek
Pacific Bell
05/18/1998
(925) 940-
Oakland
Pac - West Telecomm
05/18/1998
(925) 941-
Walnut Creek
Pacific Bell
05/18/1998
(925) 942-
Walnut Creek
Pacific Bell
05/18/1998
(925) 943-
Walnut Creek
Pacific Bell
05/18/1998
(925) 944-
Walnut Creek
Pacific Bell
05/18/1998
(925) 945-
Walnut Creek
Pacific Bell
05/18/1998
(925) 946-
Walnut Creek
Pacific Bell
05/18/1998
(925) 947-
Walnut Creek
Pacific Bell
05/18/1998
(925) 948-
Walnut Creek
Mci Worldcom Communications, CA
05/18/1998
(925) 949-
Walnut Creek
Teleport Communications Group - San Francisco
05/18/1998
(925) 951-
Walnut Creek
Mcimetro Access Transmission Services LLC
05/18/1998
(925) 952-
Walnut Creek
Pacific Bell
05/18/1998
(925) 953-
Walnut Creek
Tw Telecom Of California Lp
05/18/1998
(925) 954-
Oakland
Mpower Communications Corp
05/18/1998
(925) 955-
Oakland
Pac - West Telecomm
05/18/1998
(925) 956-
Walnut Creek
Xo California
11/20/1998
(925) 957-
Martinez
Pacific Bell
05/10/1999
(925) 960-
Livermore
Pacific Bell
05/10/1999
(925) 961-
Livermore
Pacific Bell
05/10/1999
(925) 962-
Lafayette
Pacific Bell
05/10/1999
(925) 963-
Pleasanton
New Cingular Wireless PCS
11/20/1998
(925) 964-
Danville
Pacific Bell
05/10/1999
(925) 965-
Pleasanton
AT&T Local
02/27/1999
(925) 967-
San Ramon
Pacific Bell
05/10/1999
(925) 968-
Danville
Pacific Bell
05/10/1999
(925) 969-
Concord
Pacific Bell
05/10/1999
(925) 973-
San Ramon
Pacific Bell
05/10/1999
(925) 974-
Walnut Creek
Pacific Bell
05/18/1998
(925) 975-
Walnut Creek
Pacific Bell
05/18/1998
(925) 977-
Walnut Creek
Pacific Bell
05/18/1998
(925) 978-
Antioch
Pacific Bell
05/10/1999
(925) 979-
Walnut Creek
Pacific Bell
05/10/1999
(925) 980-
Livermore
New Cingular Wireless PCS
05/10/1999
(925) 983-
Hayward
Mci Worldcom Communications, CA
05/18/1998
(925) 984-
Danville
Sprint Spectrum
08/20/2000
(925) 988-
Walnut Creek
Pacific Bell
05/18/1998
(925) 989-
Pleasanton
Cellco Partnership DBA Verizon Wireless
05/10/1999
(925) 990-
Sunol
The Telephone Connection Local Services
10/31/2000
(925) 993-
Clayton
O1 Communications
03/26/2001
(925) 997-
San Ramon
New Cingular Wireless PCS
05/10/1999
(925) 998-
Pleasanton
New Cingular Wireless PCS
11/20/1998
(925) 999-
San Ramon
O1 Communications
05/10/1999

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.