Area code 878 is an area code in the North American Numbering Plan for Southwestern Pennsylvania, centered in Pittsburgh. It forms an overlay complex with two distinct numbering plan areas, 412 in Pittsburgh and some suburban areas and 724 in an area surrounding 412 in the southwestern corner of the state.

3 天之前 · Area code 878 is located in Pennsylvania. Get area code location and dialing plans for all phone prefixes in area code 878.

2013年4月17日 · Area code 878 serves the state of Pennsylvania. This area code was assigned on December 15th, 1999. On August 17th, 2001 it went into service. 878 is a General Purpose Code. 878 service area does overlap with 412 724 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.

4 天之前 · 878 is an area code located in the state of Pennsylvania, US. The largest city it serves is Pittsburgh. Find out where 878 area code zone from, which states, counties and cities it covers. Get the most exact information on time zones here.

2025年2月1日 · Area Code 878 is located in Pennsylvania. It covers 120 cities, including Pittsburgh, New Castle, Hermitage, Greensburg, and Indiana. It also covers 13 counties, including Allegheny County, Westmoreland County, Fayette County, Beaver County, and …

- 2001: Area code 878 was activated as an overlay for area codes 412 and 724 in southwestern Pennsylvania, centered in Pittsburgh. About area code 878: location, common spam callers, related area codes, and more. Includes 878 reverse phone lookup to identify spam callers.

Area code 878 is located in Pennsylvania. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.

1999年12月15日 · Area code 878 is located in SW Pennsylvania and includes Pittsburgh. View the 878 area code map, major cities, location, timezone and more on TeraCodes.com.