Phone numbers in Carbondale, Illinois
Carbondale has 42 phone prefixes in area codes 618, 730.
Biggest holders: AT&T Mobility, Verizon Wireless, Frontier. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 52%
- Local phone company 14%
- Internet / business phone carrier 26%
- Phone company 7%
Every prefix in Carbondale
Search the first six digits of a number in this list. If it's here, the number started in Carbondale with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 618-201 | Verizon Wireless | Mobile carrier | – |
| 618-203 | T-Mobile (including Sprint) | Mobile carrier | – |
| 618-291 | AT&T Mobility | Mobile carrier | 2025 |
| 618-300 | Onvoy | Internet / business phone carrier | 2011 |
| 618-303 | AT&T Mobility | Mobile carrier | – |
| 618-305 | Verizon Wireless | Mobile carrier | – |
| 618-319 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 618-331 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 618-351 | Frontier | Local phone company | – |
| 618-353 | AT&T Mobility | Mobile carrier | – |
| 618-412 | AT&T Mobility | Mobile carrier | 2004 |
| 618-434 | T-Mobile (including Sprint) | Mobile carrier | 2008 |
| 618-453 | Frontier | Local phone company | – |
| 618-457 | Frontier | Local phone company | – |
| 618-490 | Mediacom Telephony Of Illinois | Internet / business phone carrier | 2010 |
| 618-503 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 618-519 | Mcc Network Services | Phone company | – |
| 618-521 | Verizon Wireless | Mobile carrier | – |
| 618-525 | AT&T Mobility | Mobile carrier | – |
| 618-527 | AT&T Mobility | Mobile carrier | – |
| 618-528 | AT&T Mobility | Mobile carrier | – |
| 618-529 | Frontier | Local phone company | – |
| 618-534 | Verizon Wireless | Mobile carrier | – |
| 618-536 | Frontier | Local phone company | – |
| 618-549 | Frontier | Local phone company | – |
| 618-559 | Verizon Wireless | Mobile carrier | – |
| 618-561 | Nuso | Internet / business phone carrier | – |
| 618-605 | Nuso | Internet / business phone carrier | 2013 |
| 618-630 | Stratus Networks | Phone company | 2020 |
| 618-713 | Verizon Wireless | Mobile carrier | 2002 |
| 618-784 | AT&T Mobility | Mobile carrier | 2025 |
| 618-901 | Peerless Network Of Illinois | Internet / business phone carrier | 2022 |
| 618-967 | Verizon Wireless | Mobile carrier | – |
| 730-242 | AT&T Mobility | Mobile carrier | 2024 |
| 730-250 | Verizon Wireless | Mobile carrier | 2024 |
| 730-270 | AT&T Mobility | Mobile carrier | 2025 |
| 730-273 | Nuso | Internet / business phone carrier | 2025 |
| 730-282 | Bandwidth | Internet / business phone carrier | 2025 |
| 730-294 | AT&T Mobility | Mobile carrier | 2026 |
| 730-295 | AT&T Mobility | Mobile carrier | 2026 |
| 730-300 | Leap Telecom | Phone company | 2024 |
| 730-740 | Hd Carrier | Internet / business phone carrier | 2025 |
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.