{"area_code":"517","type":"geographic","status":"active","country":"US","region":"Michigan","region_code":"MI","principal_city":"Lansing","cities":["Lansing","East Lansing","Adrian","Clinton","Jackson","Okemos"],"timezone":"America/New_York","timezone_label":"Eastern Time","current_local_time":"2026-08-04 16:02:21","ten_digit_dialing":false,"service_type":null,"overlay_codes":[],"nearby_codes":["734","248","947","313","679","810"],"summary":"Area code 517 covers Lansing and nearby cities including East Lansing, Adrian, Clinton in Michigan, in the Eastern Time.","carrier_summary":{"nxx_prefixes":613,"blocks":4272,"wireless_pct":38,"top_carriers":[{"name":"ONVOY, LLCV - MI","blocks":576},{"name":"OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC","blocks":576},{"name":"CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI","blocks":435},{"name":"NEW CINGULAR WIRELESS PCS, LLC - IL","blocks":379},{"name":"MICHIGAN BELL TEL CO","blocks":377},{"name":"LEVEL 3 COMMUNICATIONS, LLC - MI","blocks":197}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/517","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}