{"area_code":"341","type":"geographic","status":"active","country":"US","region":"California","region_code":"CA","principal_city":"Oakland","cities":["Oakland","Fremont","Hayward","Berkeley","Richmond","San Leandro","Alameda","Union City","Newark","Castro Valley","El Cerrito","San Lorenzo","San Pablo"],"timezone":"America/Los_Angeles","timezone_label":"Pacific Time","current_local_time":"2026-08-04 14:09:12","ten_digit_dialing":true,"service_type":null,"overlay_codes":["510"],"nearby_codes":["510","408","669","650","925","209"],"summary":"Area code 341 covers Oakland and nearby cities including Fremont, Hayward, Berkeley in California, in the Pacific Time.","carrier_summary":{"nxx_prefixes":107,"blocks":1098,"wireless_pct":42,"top_carriers":[{"name":"ONVOY, LLC - CA","blocks":314},{"name":"NEW CINGULAR WIRELESS PCS, LLC","blocks":147},{"name":"T-MOBILE USA, INC.","blocks":141},{"name":"CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA","blocks":97},{"name":"BANDWIDTH.COM CLEC, LLC - CA","blocks":93},{"name":"FRACTEL, LLC","blocks":84}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/341","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}