Area Code Lookup
What Area Code Is Williamstown?
2 area codes serve Williamstown
Williamstown is served by area codes 304, 856. It spans West Virginia and New Jersey.
Area Codes Serving Williamstown
Frequently Asked Questions
What area code is Williamstown?
Williamstown is served by area codes 304, 856.
Why does Williamstown 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). Williamstown now has 2 area codes — 304 and 856 — covering the same or overlapping areas.
How do I call Williamstown from outside the US?
To call Williamstown from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-304-XXX-XXXX). The +1 is the country code for all NANPA countries.