861 Area Code
Area code 861 serves Peoria, Moline, Rock Island, Pekin, Peoria Heights and nearby communities in Illinois. It has been in service since February 24, 2023, when it was split from 309.
Who issues 861 numbers
Share of the 8 prefixes (the three digits after 861) assigned to each type of carrier. Classification by carrier name, approximate.
| Carrier | Prefixes |
|---|---|
| Exiant Communications | 3 |
| Opentact | 1 |
| Intrado Communications | 1 |
| Onvoy (Sinch) | 1 |
| 8X8 | 1 |
| Ahoi | 1 |
Cities and towns in area code 861
| City | Population | Other area codes |
|---|---|---|
| Peoria | 110,920 | 309 |
| Moline | 42,362 | 309 |
| Rock Island | 36,225 | 309 |
| Pekin | 31,277 | 309 |
| Peoria Heights | 5,767 | 309 |
| Milan | 5,028 | 309 |
Got a call from 861?
A 861 number was originally issued in Illinois, but that does not prove the caller is there. 25% of 861 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.
All 8 prefixes in area code 861
Format: (861) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.
861-222Opentact · Peoria861-333Exiant Communications · Pekin861-444Intrado Communications · Peoria861-666Onvoy (Sinch) · Danvers861-777Exiant Communications · Rock Island861-8808X8 · Peoria861-888Ahoi · Moline861-999Exiant Communications · Peoria
Questions about area code 861
- Where is area code 861?
- Area code 861 is in Illinois. It covers Peoria, Moline, Rock Island, Pekin, Peoria Heights and Milan.
- What time zone is area code 861?
- Area code 861 is in the Central time zone.
- Is 861 a toll-free number?
- No. 861 is a geographic area code in Illinois. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
- Why does 861 share its area with 309?
- 309 and 861 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
- Will area code 861 run out of numbers?
- NANPA's latest forecast projects the 309/861 overlay to exhaust in the fourth quarter of 2102. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.