Area Code Lookup
What Area Code Is Centralia?
3 area codes serve Centralia
Centralia is served by area codes 564, 618, 730. It spans Washington and Illinois.
Area Codes Serving Centralia
Frequently Asked Questions
What area code is Centralia?
Centralia is served by area codes 564, 618, 730.
Why does Centralia 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). Centralia now has 3 area codes — 564 and 618 and 730 — covering the same or overlapping areas.
How do I call Centralia from outside the US?
To call Centralia from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-564-XXX-XXXX). The +1 is the country code for all NANPA countries.