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Allegheny County · Pennsylvania

Pittsburgh, PA area codes and time zone

Quick answer

Pittsburgh is served by area codes 412, 724, 878, keeps EST time (GMT-5), and sits in county FIPS 42003.

Area codes
412 · 724 · 878Within 25 miles of the city centre
Time zone
ESTAmerica/New_York
UTC offset
GMT-5EDT in summer (UTCGMT-4)
County FIPS
42003Allegheny County

Dialling from and to Pittsburgh

What this means when you pick up the phone.

Because more than one code covers this area, ten-digit dialling applies for local calls: area code plus number, every time. From abroad, dial +1 then the ten digits.

How Pittsburgh came to have several area codes

Why one city can carry several codes.

Area codes are assigned to geography, then exhausted as demand grows. Pittsburgh — population about 303k — is covered by codes 412, 724, 878, drawn from within 25 miles of the city centre. Because these 3 codes serve the same footprint, they are overlays: the number pool ran low and a new code was layered on top rather than splitting the city apart. All ten digits are required for every local call.

Other Pittsburgh datasets on this site.

Statewide: Pennsylvania cities · Pennsylvania ZIP codes · Pennsylvania sales tax · Pennsylvania counties