618 area code: location, overlays and numbers
In St. Louis, Illinois, the US area code 618 has served the region since 1947 and shares an overlay with 730.
- Location
- St. Louis in Illinois
- When service began
- 1947
- Time zone used
- Central time zone
- Overlay
- 730
- Calls within the area
- Full 10-digit dialling
- Rate centre list
- 242
- Exhaust projection
- 2040
- Country calling prefix
- +1 (United States)
Source: NANPA public reports, the area code report, the rate-centre report and the NANPA projections 2026-1 (April 2026). File dated 11/01/2026; the projections give the exhaust year. We are not an official NANPA site.
618 number: how to get one
A 618 number is available through two routes. Providers hand out a new number with their plan, chosen at sign-up from the pool they hold in this code. Sellers post numbers they already hold, frequently with a pattern, at a one-time price. Once you buy one, you transfer it to a provider.
Providers, listed 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) |
Local numbers offered by sellers
| 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. The order stays by first-year cost, and a referral fee never changes it. How we earn
Places in the 618 area code
For the 618 code, NANPA lists 242 rate centres. Every one of them is a local calling area where numbers are assigned:
Crisp, Creal Springs, Coulterville, Columbia, Collinsville, Cobden, Clay City, Claremont, Cisne, Christopher, Chesterfield Rockbridge, Chester, Chauncey, Centralia, Cave In Rock, Carterville, Carrier Mills, Carmi, Carlyle, Carbondale, Calhoun, Cairo, Burnt Prairie, Bunker Hill, Brussels, Brownstown, Browns, Broughton, Brookport, Brighton, Bridgeport, Breese, Bluford, Blairsville, Blair, Birds, Bible Grove, Bethalto, Benton, Bellmont, Belleville, Belle Prairie, Belle Rive, Beecher City, Beckemeyer, Batchtown, Bartelso, Baldwin, Aviston, Ava, Ashley, Annapolis, Anna, Alton, Altamont, Allendale, Alhambra, Albion, Albers, Addieville and 182 more.
Other related area codes
Numbers in the same area and the same pool: 730. Any of these codes can give you a new number in this area, so ask for the one you want.
In Illinois, other codes include 217, 312 and 815. Others are 309, 708, 847, 630, 773, 224, 779, 331, 872, 447, 464 and 861.
618 area code questions
Where can you find area code 618?
Calls to 618 ring in St. Louis, Illinois, and around St. Louis, MO-IL.
Which country code does a 618 number use?
+1. Part of the North American Numbering Plan, 618 means callers abroad dial +1 618 plus the 7-digit number.
What time is it in the 618 area code?
The 618 area stays on Central time.
Who uses a 618 number for calls?
Homes, mobiles and local businesses all use numbers in this code, and so do people who pretend to have a local one. A 618 number on your screen shows where the number was assigned, but not who is calling.