Learn about the 878 area code, including its location, cities, time zone, introduction date, and related area codes.
878 Area Code Details
Major Cities in the 878 Area Code
The 878 area code is associated with the following cities and communities:
- Bethel Park
- McKeesport
- Monroeville
- Mount Lebanon
- New Castle
- Penn Hills
- Pittsburgh
- Plum
- Upper Saint Clair
- West Mifflin
Where Is Area Code 878 Located?
The 878 area code serves communities in Pennsylvania. The exact communities and numbering assignments can change as telephone numbering resources are updated.
878 Area Code Time Zone
The 878 area code is associated with the Eastern time zone.
When Was 878 Area Code Introduced?
The 878 area code was introduced in 17-Aug-2001.
How to Call a 878 Area Code Number
For a call within the same numbering plan, dial the required local number according to your carrier’s dialing rules. For calls from outside the United States, use the United States country code (+1), followed by the area code and seven-digit telephone number.
Related Area Codes
878 Area Code FAQ
What state is 878 area code in?
The 878 area code is associated with Pennsylvania.
What time zone is 878 area code in?
The 878 area code is associated with Eastern.
What cities use 878 area code?
Bethel Park|McKeesport|Monroeville|Mount Lebanon|New Castle|Penn Hills|Pittsburgh|Plum|Upper Saint Clair|West Mifflin
More Questions About Area Code 878
What state is area code 878 in?
Area code 878 is associated with Pennsylvania.
What time zone is area code 878 in?
The listed time zone for area code 878 is Eastern.