{"area_code":"925","type":"geographic","status":"active","country":"US","region":"California","region_code":"CA","principal_city":"Concord","cities":["Concord","Antioch","Livermore","San Ramon","Pleasanton","Walnut Creek","Pittsburg","Brentwood","Dublin","Danville","Oakley","Martinez","Bay Point","Lafayette","Pleasant Hill"],"timezone":"America/Los_Angeles","timezone_label":"Pacific Time","current_local_time":"2026-08-05 03:10:46","ten_digit_dialing":true,"service_type":null,"overlay_codes":[],"nearby_codes":["650","415","628","341","510","408"],"summary":"Area code 925 covers Concord and nearby cities including Antioch, Livermore, San Ramon in California, in the Pacific Time.","carrier_summary":{"nxx_prefixes":634,"blocks":4910,"wireless_pct":35,"top_carriers":[{"name":"PACIFIC BELL","blocks":757},{"name":"ONVOY, LLC - CA","blocks":560},{"name":"T-MOBILE USA, INC.","blocks":506},{"name":"NEW CINGULAR WIRELESS PCS, LLC","blocks":444},{"name":"CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA","blocks":392},{"name":"METROPCS, INC.","blocks":294}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/925","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}