Phone numbers in Centralia, Illinois
Centralia has 39 phone prefixes in area codes 618, 730.
Biggest holders: AT&T Mobility, Verizon Wireless, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 85%
- Local phone company 10%
- Internet / business phone carrier 3%
- Paging service 3%
Every prefix in Centralia
Search the first six digits of a number in this list. If it's here, the number started in Centralia with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 618-231 | AT&T Mobility | Mobile carrier | – |
| 618-237 | AT&T Mobility | Mobile carrier | – |
| 618-267 | Verizon Wireless | Mobile carrier | – |
| 618-292 | AT&T Mobility | Mobile carrier | – |
| 618-322 | Verizon Wireless | Mobile carrier | – |
| 618-335 | Verizon Wireless | Mobile carrier | – |
| 618-339 | AT&T Mobility | Mobile carrier | – |
| 618-352 | AT&T Mobility | Mobile carrier | – |
| 618-359 | AT&T Mobility | Mobile carrier | – |
| 618-367 | Verizon Wireless | Mobile carrier | – |
| 618-436 | AT&T (local phone) | Local phone company | – |
| 618-532 | AT&T (local phone) | Local phone company | – |
| 618-533 | AT&T (local phone) | Local phone company | – |
| 618-545 | AT&T (local phone) | Local phone company | – |
| 618-597 | American Messaging Services | Paging service | – |
| 618-682 | AT&T Mobility | Mobile carrier | 2021 |
| 618-760 | AT&T Mobility | Mobile carrier | 2021 |
| 618-780 | AT&T Mobility | Mobile carrier | – |
| 618-813 | AT&T Mobility | Mobile carrier | 2021 |
| 618-848 | Onvoy | Internet / business phone carrier | 2022 |
| 618-856 | AT&T Mobility | Mobile carrier | 2022 |
| 618-907 | Verizon Wireless | Mobile carrier | 2022 |
| 618-918 | AT&T Mobility | Mobile carrier | – |
| 618-953 | AT&T Mobility | Mobile carrier | 2023 |
| 730-220 | AT&T Mobility | Mobile carrier | 2023 |
| 730-227 | AT&T Mobility | Mobile carrier | 2023 |
| 730-232 | AT&T Mobility | Mobile carrier | 2024 |
| 730-234 | AT&T Mobility | Mobile carrier | 2024 |
| 730-253 | AT&T Mobility | Mobile carrier | 2024 |
| 730-258 | AT&T Mobility | Mobile carrier | 2024 |
| 730-262 | AT&T Mobility | Mobile carrier | 2025 |
| 730-266 | AT&T Mobility | Mobile carrier | 2025 |
| 730-272 | AT&T Mobility | Mobile carrier | 2025 |
| 730-278 | AT&T Mobility | Mobile carrier | 2025 |
| 730-283 | AT&T Mobility | Mobile carrier | 2025 |
| 730-285 | AT&T Mobility | Mobile carrier | 2025 |
| 730-286 | AT&T Mobility | Mobile carrier | 2025 |
| 730-287 | AT&T Mobility | Mobile carrier | 2025 |
| 730-308 | MetroPCS (T-Mobile) | Mobile carrier | 2026 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.