Phone numbers in Elburn, Illinois
Elburn has 7 phone prefixes in area codes 331, 630.
Biggest holders: TON80 Communications, Bandwidth, Fractel. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 14%
- Internet / business phone carrier 57%
- Phone company 29%
Every prefix in Elburn
Search the first six digits of a number in this list. If it's here, the number started in Elburn with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 331-288 | TON80 Communications | Internet / business phone carrier | 2022 |
| 331-303 | Bandwidth | Internet / business phone carrier | – |
| 331-348 | Fractel | Internet / business phone carrier | 2019 |
| 630-365 | AT&T (local phone) | Local phone company | – |
| 630-387 | First Communications | Phone company | – |
| 630-448 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 630-934 | AT&T Enterprises | Phone company | 2001 |
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.