Area Code Lookup
What Area Code Is Chatham?
6 area codes serve Chatham
Chatham is served by area codes 217, 434, 518, 519, 774, 862. It spans Illinois and Virginia and New York and Ontario and Massachusetts and New Jersey.
Area Codes Serving Chatham
Frequently Asked Questions
What area code is Chatham?
Chatham is served by area codes 217, 434, 518, 519, 774, 862.
Why does Chatham 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). Chatham now has 6 area codes — 217 and 434 and 518 and 519 and 774 and 862 — covering the same or overlapping areas.
How do I call Chatham from outside the US?
To call Chatham from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-217-XXX-XXXX). The +1 is the country code for all NANPA countries.