Phone numbers in Carmel, Indiana
Carmel has 55 phone prefixes in area codes 317, 463.
Biggest holders: AT&T (local phone), Level 3 (Lumen), T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 13%
- Local phone company 40%
- Internet / business phone carrier 47%
Every prefix in Carmel
Search the first six digits of a number in this list. If it's here, the number started in Carmel with the carrier shown. If it isn't, check the Indiana page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 317-208 | AT&T (local phone) | Local phone company | – |
| 317-218 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 317-249 | Teleport Communications America | Internet / business phone carrier | – |
| 317-324 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 317-343 | Bandwidth | Internet / business phone carrier | – |
| 317-428 | AT&T (local phone) | Local phone company | – |
| 317-564 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 317-566 | AT&T (local phone) | Local phone company | – |
| 317-569 | AT&T (local phone) | Local phone company | – |
| 317-571 | AT&T (local phone) | Local phone company | – |
| 317-573 | AT&T (local phone) | Local phone company | – |
| 317-574 | AT&T (local phone) | Local phone company | – |
| 317-575 | AT&T (local phone) | Local phone company | – |
| 317-580 | AT&T (local phone) | Local phone company | – |
| 317-581 | AT&T (local phone) | Local phone company | – |
| 317-582 | AT&T (local phone) | Local phone company | – |
| 317-587 | AT&T (local phone) | Local phone company | – |
| 317-660 | Level 3 (Lumen) | Internet / business phone carrier | 2006 |
| 317-663 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 317-669 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 317-688 | Level 3 (Lumen) | Internet / business phone carrier | 2005 |
| 317-689 | Level 3 (Lumen) | Internet / business phone carrier | 2014 |
| 317-705 | AT&T (local phone) | Local phone company | – |
| 317-706 | AT&T (local phone) | Local phone company | – |
| 317-708 | Teleport Communications America | Internet / business phone carrier | – |
| 317-740 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 317-795 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 317-798 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 317-805 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 317-810 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 317-814 | Teleport Communications America | Internet / business phone carrier | – |
| 317-815 | AT&T (local phone) | Local phone company | – |
| 317-816 | AT&T (local phone) | Local phone company | – |
| 317-817 | AT&T (local phone) | Local phone company | – |
| 317-818 | AT&T (local phone) | Local phone company | – |
| 317-819 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 317-843 | AT&T (local phone) | Local phone company | – |
| 317-844 | AT&T (local phone) | Local phone company | – |
| 317-846 | AT&T (local phone) | Local phone company | – |
| 317-848 | AT&T (local phone) | Local phone company | – |
| 317-853 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 317-975 | MetroPCS (T-Mobile) | Mobile carrier | 2013 |
| 317-993 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 463-216 | Vonage America | Internet / business phone carrier | 2018 |
| 463-223 | Bandwidth | Internet / business phone carrier | 2019 |
| 463-250 | Telnyx | Internet / business phone carrier | 2021 |
| 463-273 | Level 3 (Lumen) | Internet / business phone carrier | 2022 |
| 463-293 | Onvoy | Internet / business phone carrier | 2024 |
| 463-316 | AT&T Mobility | Mobile carrier | 2024 |
| 463-328 | TON80 Communications | Internet / business phone carrier | 2021 |
| 463-329 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 463-333 | Onvoy | Internet / business phone carrier | 2017 |
| 463-341 | Onvoy | Internet / business phone carrier | 2026 |
| 463-345 | Fractel | Internet / business phone carrier | 2020 |
| 463-388 | Commio | Internet / business phone carrier | 2022 |
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.