Area Code Lookup
What Area Code Is Pittsburgh Zone 1?
2 area codes serve Pittsburgh Zone 1 · Pennsylvania
Pittsburgh Zone 1 is served by area codes 412, 878. It is located in Pennsylvania.
Area Codes Serving Pittsburgh Zone 1
Frequently Asked Questions
What area code is Pittsburgh Zone 1?
Pittsburgh Zone 1 is served by area codes 412, 878. It is located in Pennsylvania.
Why does Pittsburgh Zone 1 have multiple area codes?
As demand for phone numbers increased, NANPA added area codes through splits (dividing the region) or overlays (layering a new code over the same geography). Pittsburgh Zone 1 now has 2 area codes — 412 and 878 — covering the same or overlapping areas.
How do I call Pittsburgh Zone 1 from outside the US?
To call Pittsburgh Zone 1 from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-412-XXX-XXXX). The +1 is the country code for all NANPA countries.