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 12 of 13 — Previous   Next
Area code Location Company / Service Provider
925-963 PLEASANTON, CA NEW CINGULAR WIRELESS PCS, LLC
925-964 DANVILLE, CA PACIFIC BELL
925-965 PLEASANTON, CA AT&T LOCAL
925-967 Dublin / San Ramon, CA PACIFIC BELL
925-968 Bishop's Ranch, CA PACIFIC BELL
925-969 CONCORD, CA PACIFIC BELL
925-973 Bishop's Ranch, CA PACIFIC BELL
925-974 Walnut Creek, CA PACIFIC BELL
925-975 Walnut Creek, CA PACIFIC BELL
925-977 Walnut Creek, CA PACIFIC BELL
925-978 ANTIOCH, CA PACIFIC BELL
925-979 Walnut Creek, CA PACIFIC BELL
925-980 LIVERMORE, CA NEW CINGULAR WIRELESS PCS, LLC
925-983 Bishop's Ranch, CA MCI WORLDCOM COMMUNICATIONS, INC., CA
925-984 DANVILLE, CA SPRINT SPECTRUM L.P.
925-988 Walnut Creek, CA PACIFIC BELL
925-989 PLEASANTON, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
925-990 SUNOL, CA THE TELEPHONE CONNECTION LOCAL SERVICES, LLC
925-993 CLAYTON, CA O1 COMMUNICATIONS, INC. - CA
925-997 Dublin / San Ramon, CA NEW CINGULAR WIRELESS PCS, LLC
925-998 PLEASANTON, CA NEW CINGULAR WIRELESS PCS, LLC
925-999 Dublin / San Ramon, CA O1 COMMUNICATIONS, INC. - CA
925-211 California
925-311 California
925-411 California
925-442 California
925-486 California
925-511 California
925-530 California
925-555 OKLD0349T, CA PACIFIC BELL
925-611 California
925-619 California
925-650 California
925-657 California
925-700 California
925-707 California
925-711 California
925-714 California
925-739 California
925-747 California
925-760 California
925-805 California
925-811 California
925-909 California
925-911 California
925-916 California
925-925 California
925-950 California
925-958 California
925-959 California
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 12 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