Area Code Box

Area code 309

Where is area code 309?

Peoria, Bloomington and Rock Island, Illinois

Local time: … (Central Time)

StateIllinois
CountryUnited States
Main citiesPeoria, Bloomington and Rock Island
Time zoneCentral Time
Overlay area codes861
In service since1957
Assigned prefixes786
Dialing format(309) XXX-XXXX · +1 309 XXX XXXX from abroad

Look up a 309 number

Enter a 3-digit area code or a full 10-digit number.

Cities and towns in area code 309

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 309.

Phone companies in area code 309

The carriers that hold the most 309 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

PrefixesCarrier
99Frontier North
83Illinois Bell Tel Co (AT&T)
74Onvoy
66Level 3 Communications
46Verizon Wireless
39Mediacom Telephony of Illinois
35Citizens Telecom Co Illinois-Frontier Citizens -Il
34New Cingular Wireless PCS (AT&T)

All 786 prefixes in area code 309

Pick the 3 digits after the area code to see that prefix’s city and carrier.

Area codes that overlay 309

Questions

Where is area code 309?
Area code 309 is in Illinois. It serves Peoria, Bloomington, Rock Island, Macomb and Galesburg and 170 other cities and towns.
What time zone is area code 309 in?
Area code 309 uses Central Time.
What area codes overlay 309?
861 serves the same area as 309. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.
Is a call from area code 309 a scam?
The area code alone doesn’t tell you. Most calls from 309 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 309 number, let it go to voicemail.
When did area code 309 start?
309 went into service in 1957.
Can a 309 number be outside Illinois?
Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 309 caller can be anywhere.

Other area codes in Illinois

Area codeMain cities
217Springfield, Champaign and Decatur
224Northbrook, Arlington Hts and Des Plaines
312Chicgozn01, Wheeling and Oak Brook
331Aurora, Naperville and Downers Grove
447Danville, Springfield and Champaign
464Oak For So, Forest Park and La Grange
618Collinsville, Carbondale and Belleville
630Schaumburg, La Grange and Naperville
708La Grange, Chicago Heights and Oak Forest
730Centralia, Herrin and Belleville
773Harwood Heights, Chicgozn01 and Chicgozn02
779Rockford, Joliet and Momence
815Rockford, Joliet and Kankakee
847Northbrook, Schaumburg and Arlington Hts
872Chicgozn01, Harwood Heights and Chicgozn04