Area Code Lookup
What Area Code Is Farmington?
6 area codes serve Farmington
Farmington is served by area codes 309, 385, 479, 505, 573, 681. It spans Illinois and Utah and Arkansas and New Mexico and Missouri and West Virginia.
Area Codes Serving Farmington
Frequently Asked Questions
What area code is Farmington?
Farmington is served by area codes 309, 385, 479, 505, 573, 681.
Why does Farmington 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). Farmington now has 6 area codes — 309 and 385 and 479 and 505 and 573 and 681 — covering the same or overlapping areas.
How do I call Farmington from outside the US?
To call Farmington from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-309-XXX-XXXX). The +1 is the country code for all NANPA countries.