National Phone Number Registry NPNR

Area Code 925 Location

Area code 925 is currently assigned for use in California since Mar 14, 1998. This area code originated from the 510 area code previously by means of area code split or overlay. View all phone prefixes used in area code 925 or other area codes in California.

(925)
Enter 7-digit phone number for area code 925 or the complete 10-digit phone number

Phone Prefixes for Area Code 925

Page 6 of 13 — Previous   Next
Area code Location Company / Service Provider
925-462 PLEASANTON, CA PACIFIC BELL
925-463 PLEASANTON, CA PACIFIC BELL
925-464 Walnut Creek, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
925-465 Walnut Creek, CA BROADWING COMMUNICATIONS, LLC - CA
925-467 PLEASANTON, CA PACIFIC BELL
925-468 PLEASANTON, CA PACIFIC BELL
925-469 PLEASANTON, CA PACIFIC BELL
925-470 ANTIOCH, CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
925-471 CONCORD, CA CITRIX COMMUNICATIONS LLC - CA
925-472 Walnut Creek, CA PACIFIC BELL
925-473 PITTSBURG, CA PACIFIC BELL
925-474 PLEASANTON, CA U.S. TELEPACIFIC CORP. - CA
925-475 PLEASANTON, CA TNCI-OP-CO - CA
925-476 Walnut Creek, CA TNCI-OP-CO - CA
925-478 Walnut Creek, CA LEVEL 3 COMMUNICATIONS, LLC - CA
925-479 Dublin / San Ramon, CA PACIFIC BELL
925-480 Bishop's Ranch, CA U.S. TELEPACIFIC CORP. - CA
925-481 ANTIOCH, CA NEW CINGULAR WIRELESS PCS, LLC
925-482 Walnut Creek, CA U.S. TELEPACIFIC CORP. - CA
925-483 CONCORD, CA COMCAST PHONE OF CALIFORNIA, LLC - CA
925-484 PLEASANTON, CA PACIFIC BELL
925-485 PLEASANTON, CA PACIFIC BELL
925-487 Dublin / San Ramon, CA NEW CINGULAR WIRELESS PCS, LLC
925-490 CONCORD, CA BANDWIDTH.COM CLEC, LLC - CA
925-493 LIVERMORE, CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
925-494 CONCORD, CA BANDWIDTH.COM CLEC, LLC - CA
925-495 LIVERMORE, CA BANDWIDTH.COM CLEC, LLC - CA
925-497 CONCORD, CA METRO PCS, INC.
925-498 Bishop's Ranch, CA U.S. TELEPACIFIC CORP. - CA
925-500 MARTINEZ, CA O1 COMMUNICATIONS, INC. - CA
925-503 ANTIOCH, CA T-MOBILE USA, INC.
925-509 Bishop's Ranch, CA USA MOBILITY WIRELESS, INC.
925-513 ECONTRCOST, CA PACIFIC BELL
925-516 ECONTRCOST, CA PACIFIC BELL
925-517 Pittsburg, CA O1 COMMUNICATIONS, INC. - CA
925-518 LIVERMORE, CA SPRINT SPECTRUM L.P.
925-519 PLEASANTON, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
925-520 PLEASANTON, CA PACIFIC BELL
925-521 CONCORD, CA PACIFIC BELL
925-522 ANTIOCH, CA PACIFIC BELL
925-523 PLEASANTON, CA PACIFIC BELL
925-524 CLAYTON, CA PACIFIC BELL
925-525 LIVERMORE, CA SPRINT SPECTRUM L.P.
925-526 PITTSBURG, CA U.S. TELEPACIFIC CORP. - CA
925-527 Walnut Creek, CA THE TELEPHONE CONNECTION LOCAL SERVICES, LLC
925-528 ORINDA, CA SPRINT SPECTRUM L.P.
925-529 ANTIOCH, CA CF COMMUNICATIONS, LLC DBA TELEKENEX - CA
925-532 Walnut Creek, CA TELNYX LLC
925-535 PLEASANTON, CA SPRINT SPECTRUM L.P.
925-536 CONCORD, CA TELNYX LLC
New numbers being added to 925 area code
Effective: 05/19/2017
925-503 in ANTIOCH, CA
T-MOBILE USA, INC.
Effective: 05/01/2017
925-532 in WALNUT CREEK, CA
TELNYX LLC
Effective: 05/01/2017
925-536 in CONCORD, CA
TELNYX LLC
925 Area Code Information
Type of code: General Purpose Code
Location: CA - US
Time zone: P
Assigned for use: Yes
Code in service: Yes
Service date: March 14, 1998
In jeopardy: No
Relief in progress: No
NPA Relief status:
Code assignable: Yes
Geographic or
non-geographic:
G
Reserved for future use: No
Planning letter(s): 080 061
Overlay code: No
Overlay complex:
Dialing plan Standard Permissive
Home local calls: 7D 1+10D
Foreign local calls: 1+10D NA
Home toll calls: 7D 1+10D
Foreign toll calls: 1+10D -
Page 6 of 13

Home   ·   Area Codes   ·   News & Info
Some useful links:
National Do Not Call Registry FTC - Cell Phones and the Do Not Call Registry FCC - Do Not Call List FTC Complaint Assistant 1.3.86