{"area_code":"878","type":"geographic","status":"active","country":"US","region":"Pennsylvania","region_code":"PA","principal_city":"Pittsburgh","cities":["Pittsburgh","Bethel Park","McKeesport","Monroeville","Mount Lebanon","New Castle","Penn Hills","Plum","Upper Saint Clair","West Mifflin"],"timezone":"America/New_York","timezone_label":"Eastern Time","current_local_time":"2026-10-23 00:48:52","ten_digit_dialing":true,"service_type":null,"overlay_codes":["412"],"nearby_codes":["412","724","582","814","234","330"],"summary":"Area code 878 covers Pittsburgh, Pennsylvania (Eastern Time) and nearby Bethel Park, McKeesport and Monroeville; overlay 412 shares the same area.","carrier_summary":{"nxx_prefixes":190,"blocks":1603,"wireless_pct":33,"top_carriers":[{"name":"ONVOY, LLC - PA","blocks":489},{"name":"ONVOY SPECTRUM, LLC","blocks":145},{"name":"CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA","blocks":117},{"name":"AERIAL COMMUNICATIONS, INC.","blocks":114},{"name":"NEW CINGULAR WIRELESS PCS, LLC - IL","blocks":112},{"name":"TON80 COMMUNICATIONS, LLC","blocks":69}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/878","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-10-21"}