Phone numbers in Herrin, Illinois
Herrin has 25 phone prefixes in area codes 618, 730.
Biggest holders: AT&T Mobility, Frontier, Novacom. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 76%
- Local phone company 8%
- Internet / business phone carrier 12%
- Phone company 4%
Every prefix in Herrin
Search the first six digits of a number in this list. If it's here, the number started in Herrin with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 618-333 | Novacom | Phone company | – |
| 618-727 | AT&T Mobility | Mobile carrier | – |
| 618-810 | AT&T Mobility | Mobile carrier | 2021 |
| 618-849 | AT&T Mobility | Mobile carrier | 2022 |
| 618-850 | Twilio | Internet / business phone carrier | – |
| 618-913 | AT&T Mobility | Mobile carrier | 2023 |
| 618-916 | Nuso | Internet / business phone carrier | 2023 |
| 618-925 | AT&T Mobility | Mobile carrier | – |
| 618-942 | Frontier | Local phone company | – |
| 618-951 | AT&T Mobility | Mobile carrier | 2023 |
| 618-957 | AT&T Mobility | Mobile carrier | 2023 |
| 618-988 | Frontier | Local phone company | – |
| 730-208 | AT&T Mobility | Mobile carrier | 2023 |
| 730-229 | AT&T Mobility | Mobile carrier | 2025 |
| 730-241 | AT&T Mobility | Mobile carrier | 2024 |
| 730-252 | Onvoy | Internet / business phone carrier | 2024 |
| 730-256 | AT&T Mobility | Mobile carrier | 2024 |
| 730-260 | AT&T Mobility | Mobile carrier | 2024 |
| 730-261 | AT&T Mobility | Mobile carrier | 2025 |
| 730-271 | AT&T Mobility | Mobile carrier | 2025 |
| 730-284 | AT&T Mobility | Mobile carrier | 2025 |
| 730-288 | AT&T Mobility | Mobile carrier | 2025 |
| 730-289 | AT&T Mobility | Mobile carrier | 2025 |
| 730-290 | AT&T Mobility | Mobile carrier | 2025 |
| 730-301 | AT&T Mobility | 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.