Area Code Lookup
What Area Code Is Petersburg?
3 area codes serve Petersburg
Petersburg is served by area codes 734, 804, 812. It spans Michigan and Virginia and Indiana.
Area Codes Serving Petersburg
Frequently Asked Questions
What area code is Petersburg?
Petersburg is served by area codes 734, 804, 812.
Why does Petersburg 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). Petersburg now has 3 area codes — 734 and 804 and 812 — covering the same or overlapping areas.
How do I call Petersburg from outside the US?
To call Petersburg from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-734-XXX-XXXX). The +1 is the country code for all NANPA countries.