Area code 878

Area code 878 is found in the US state of Pennsylvania. 878 is an overlay code for area code 412 and 724 in southwest Pennsylvania, though no numbers have yet been assigned to it. 10-digit dialing is mandatory in the area. Phone numbers in the 878 area code can be found in 29 cities or locations.

List of cities in area code 878

The carriers providing phone numbers in area code 878

Phone prefixes in the 878 area code

AreaCode/Prefix (Exchange) Usage
878-201 Landline
878-202 Landline
878-203 Unknown
878-204 Unknown
878-205 Unknown
878-206 Unknown
878-207 Unknown
878-210 Unknown
878-218 Unknown
878-222 Landline
878-228 Unknown
878-238 Unknown
878-258 Landline
878-266 Unknown
878-271 Unknown
878-295 Landline
878-302 Landline
878-313 Unknown
878-332 Landline
878-333 Unknown
878-355 Unknown
878-378 Unknown
878-379 Unknown
878-400 Unknown
878-422 Landline
878-425 Unknown
878-444 Landline
878-645 Unknown
878-666 Unknown
878-668 Unknown
878-670 Unknown
878-777 Landline
878-847 Unknown
878-870 Unknown
878-999 Unknown