Phone numbers in Cicero, Indiana
Cicero has 12 phone prefixes in area codes 317, 463.
Biggest holders: Verizon Wireless, T-Mobile (including Sprint), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 58%
- Local phone company 8%
- Internet / business phone carrier 33%
Every prefix in Cicero
Search the first six digits of a number in this list. If it's here, the number started in Cicero with the carrier shown. If it isn't, check the Indiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 317-349 | Bandwidth | Internet / business phone carrier | 2017 |
| 317-376 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 317-385 | Verizon Wireless | Mobile carrier | 2002 |
| 317-420 | T-Mobile (including Sprint) | Mobile carrier | – |
| 317-606 | Verizon Wireless | Mobile carrier | 2007 |
| 317-984 | Frontier | Local phone company | – |
| 463-214 | Onvoy | Internet / business phone carrier | 2018 |
| 463-254 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 463-272 | Verizon Wireless | Mobile carrier | 2022 |
| 463-310 | Onvoy | Internet / business phone carrier | 2024 |
| 463-340 | T-Mobile (including Sprint) | Mobile carrier | 2026 |
| 463-422 | MetroPCS (T-Mobile) | Mobile 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.