Phone numbers in Carrollton, Illinois
Carrollton has 4 phone prefixes in area code 217.
Biggest holders: Level 3 (Lumen), Vonage America, Frontier. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 25%
- Internet / business phone carrier 75%
Every prefix in Carrollton
Search the first six digits of a number in this list. If it's here, the number started in Carrollton with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 217-409 | Level 3 (Lumen) | Internet / business phone carrier | 2003 |
| 217-702 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 217-760 | Vonage America | Internet / business phone carrier | 2019 |
| 217-942 | Frontier | Local phone company | – |
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.