Phone numbers in Mattoon, Illinois
Mattoon has 39 phone prefixes in area codes 217, 447.
Biggest holders: AT&T Mobility, Verizon Wireless, Illinois Consolidated Tel. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 49%
- Internet / business phone carrier 26%
- Paging service 5%
- Phone company 21%
Every prefix in Mattoon
Search the first six digits of a number in this list. If it's here, the number started in Mattoon with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 217-205 | Fidium Enterprise Services | Phone company | 2013 |
| 217-232 | AT&T Mobility | Mobile carrier | – |
| 217-234 | Illinois Consolidated Tel | Phone company | – |
| 217-235 | Illinois Consolidated Tel | Phone company | – |
| 217-238 | Illinois Consolidated Tel | Phone company | – |
| 217-246 | Verizon Wireless | Mobile carrier | – |
| 217-254 | Verizon Wireless | Mobile carrier | – |
| 217-258 | Illinois Consolidated Tel | Phone company | – |
| 217-259 | Verizon Wireless | Mobile carrier | – |
| 217-261 | Peerless Network Of Illinois | Internet / business phone carrier | 2022 |
| 217-273 | Verizon Wireless | Mobile carrier | – |
| 217-276 | AT&T Mobility | Mobile carrier | – |
| 217-294 | Verizon Wireless | Mobile carrier | – |
| 217-295 | Mediacom Telephony Of Illinois | Internet / business phone carrier | 2010 |
| 217-317 | T-Mobile (including Sprint) | Mobile carrier | – |
| 217-460 | Verizon Wireless | Mobile carrier | – |
| 217-798 | MCImetro (Verizon Business) | Internet / business phone carrier | 2020 |
| 217-929 | MCImetro (Verizon Business) | Internet / business phone carrier | 2005 |
| 217-951 | Illinois Consolidated Tel | Phone company | 2024 |
| 217-956 | American Messaging Services | Paging service | – |
| 217-957 | American Messaging Services | Paging service | – |
| 217-961 | Onvoy | Internet / business phone carrier | 2020 |
| 217-962 | T-Mobile (including Sprint) | Mobile carrier | – |
| 217-975 | AT&T Mobility | Mobile carrier | – |
| 447-249 | AT&T Mobility | Mobile carrier | 2023 |
| 447-252 | Hd Carrier | Internet / business phone carrier | 2023 |
| 447-259 | AT&T Mobility | Mobile carrier | 2023 |
| 447-279 | AT&T Mobility | Mobile carrier | 2023 |
| 447-280 | AT&T Mobility | Mobile carrier | 2023 |
| 447-289 | AT&T Mobility | Mobile carrier | 2024 |
| 447-291 | AT&T Mobility | Mobile carrier | 2024 |
| 447-296 | IP Horizon | Internet / business phone carrier | 2024 |
| 447-312 | AT&T Mobility | Mobile carrier | 2025 |
| 447-322 | Terra Nova Telecom | Internet / business phone carrier | 2025 |
| 447-335 | AT&T Mobility | Mobile carrier | 2026 |
| 447-439 | Exiant Communications | Phone company | 2026 |
| 447-450 | Leap Telecom | Phone company | 2024 |
| 447-497 | Twilio | Internet / business phone carrier | 2022 |
| 447-810 | Onvoy | Internet / business phone carrier | 2021 |
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.