Phone numbers in Chesterton, Indiana
Chesterton has 12 phone prefixes in area code 219.
Biggest holders: Frontier, Verizon Wireless, Bandwidth. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 8%
- Local phone company 50%
- Internet / business phone carrier 33%
- Phone company 8%
Every prefix in Chesterton
Search the first six digits of a number in this list. If it's here, the number started in Chesterton with the carrier shown. If it isn't, check the Indiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 219-250 | Verizon Wireless | Mobile carrier | 2008 |
| 219-255 | Bandwidth | Internet / business phone carrier | 2018 |
| 219-278 | Telnyx | Internet / business phone carrier | 2021 |
| 219-395 | Frontier | Local phone company | – |
| 219-423 | Onvoy | Internet / business phone carrier | 2026 |
| 219-728 | Acme Communications | Phone company | 2004 |
| 219-799 | Fractel | Internet / business phone carrier | 2020 |
| 219-921 | Frontier | Local phone company | – |
| 219-926 | Frontier | Local phone company | – |
| 219-928 | Frontier | Local phone company | – |
| 219-929 | Frontier | Local phone company | – |
| 219-983 | 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.