Phone numbers in Willimantic, Connecticut
Willimantic has 25 phone prefixes in area codes 860, 959.
Biggest holders: Verizon Wireless, AT&T (local phone), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 56%
- Local phone company 20%
- Internet / business phone carrier 24%
Every prefix in Willimantic
Search the first six digits of a number in this list. If it's here, the number started in Willimantic with the carrier shown. If it isn't, check the Connecticut page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 860-207 | Verizon Wireless | Mobile carrier | 2013 |
| 860-208 | AT&T Mobility | Mobile carrier | – |
| 860-234 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-336 | Teleport Communications America | Internet / business phone carrier | – |
| 860-377 | Verizon Wireless | Mobile carrier | – |
| 860-423 | AT&T (local phone) | Local phone company | – |
| 860-428 | Verizon Wireless | Mobile carrier | – |
| 860-450 | AT&T (local phone) | Local phone company | – |
| 860-455 | AT&T (local phone) | Local phone company | – |
| 860-456 | AT&T (local phone) | Local phone company | – |
| 860-465 | AT&T (local phone) | Local phone company | – |
| 860-576 | Verizon Wireless | Mobile carrier | 2008 |
| 860-617 | AT&T Mobility | Mobile carrier | – |
| 860-634 | T-Mobile (including Sprint) | Mobile carrier | – |
| 860-771 | AT&T Mobility | Mobile carrier | 2010 |
| 860-786 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 860-931 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 860-933 | Verizon Wireless | Mobile carrier | 2002 |
| 860-942 | Verizon Wireless | Mobile carrier | – |
| 959-210 | Peerless Network Of Connecticut | Internet / business phone carrier | 2019 |
| 959-232 | Onvoy | Internet / business phone carrier | 2021 |
| 959-260 | AT&T Mobility | Mobile carrier | 2024 |
| 959-444 | Peerless Network Of Connecticut | Internet / business phone carrier | 2016 |
| 959-929 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 959-995 | TON80 Communications | 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.