861 area code: location, overlays and numbers
In Illinois, 861 has served as a US telephone area code since 2023 and shares an overlay with 309.
- Location
- Illinois
- Service start
- 2023
- Timezone
- Central time zone
- Overlay
- 309
- Local calling
- 10-digit dialing
- The rate centres
- 171
- Exhaust, projected
- 2102
- The country code
- +1 (United States)
Sources: NANPA public reports, the area code report and the rate-centre report, dated 11/01/2026. The exhaust year comes from the 2026-1 NANPA projections (April 2026). This is an unofficial NANPA site.
Get an 861 number
There are two ways to get a 861 number. At sign-up, a provider assigns a new number from those it holds in the code, and the number comes with its plan. A seller offers numbers it holds already, often with a pattern, at a one-time price. After that, you move the number over to a provider.
Providers sorted by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers that list local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. That never changes the order, which follows first-year cost. How we earn
Places in the 861 area code
For 861, NANPA lists 171 rate centres. Each one is a local calling area where numbers get assigned:
The list includes Abingdon, Adair, Albany and Aledo. It continues with Alexis, Alpha, Altona, Andover and Annawan. Also included are Arrowsmith, Astoria, Atkinson and Avon. More places are Bardolph, Bath, Bellflower, Benson and Biggsville. The list also has Bishop Hill, Blandinsville, Bloomington and Bradford. Other entries include Brimfield, Buda, Bushnell, Cambridge and Cameron. You also find Camp Grove, Canton, Carlock, Castleton and Chillicothe. Further entries are Colchester, Colfax, Congerville, Cooksville and Cordova. The list continues with Cropsey, Cuba, Danvers, Deer Creek and Delavan. Other places listed are Downs, Dunlap, East Moline, Easton and Edelstein. You also find Edgington, El Paso, Eliza, Ellisville and Ellsworth. Further entries are Elmira, Elmwood, Erie, Eureka and Fairview. The list ends with Farmer City, Farmington, Fiatt and 111 more.
Other related area codes
Same area and same pool of numbers: 309. Any of these codes can give you a new number here, so request the one you want.
Additional area codes for Illinois: 217, 312, 618, 815, 708, 847, 630, 773, 224, 779, 331, 872, 447, 464 and 730.
861 area code questions
Where is area code 861?
Area code 861 serves Illinois.
What country code does a 861 number use?
+1. Because 861 belongs to the North American Numbering Plan, calling from abroad means dialling +1 861 and the 7-digit number.
What time is it in the 861 area code?
861 keeps Central time.
Who uses a 861 number to call?
This code covers homes, mobiles and local businesses, and it also covers callers who fake a local number. What a 861 number shows on your screen is where it was assigned, not who is calling.