Phone numbers in Southingtn, Connecticut
Southingtn has 23 phone prefixes in area codes 860, 959.
Biggest holders: AT&T (local phone), Verizon Wireless, MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 30%
- Local phone company 26%
- Internet / business phone carrier 43%
Every prefix in Southingtn
Search the first six digits of a number in this list. If it's here, the number started in Southingtn with the carrier shown. If it isn't, check the Connecticut page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 860-276 | AT&T (local phone) | Local phone company | – |
| 860-302 | AT&T Mobility | Mobile carrier | – |
| 860-329 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-378 | AT&T (local phone) | Local phone company | – |
| 860-384 | Verizon Wireless | Mobile carrier | – |
| 860-385 | Onvoy | Internet / business phone carrier | – |
| 860-406 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-414 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-426 | Comcast | Internet / business phone carrier | – |
| 860-609 | Teleport Communications America | Internet / business phone carrier | – |
| 860-620 | AT&T (local phone) | Local phone company | – |
| 860-621 | AT&T (local phone) | Local phone company | – |
| 860-628 | AT&T (local phone) | Local phone company | – |
| 860-637 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 860-681 | AT&T (local phone) | Local phone company | – |
| 860-736 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 860-863 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 860-877 | AT&T Mobility | Mobile carrier | – |
| 860-919 | Verizon Wireless | Mobile carrier | – |
| 959-216 | Bandwidth | Internet / business phone carrier | 2020 |
| 959-261 | Verizon Wireless | Mobile carrier | 2021 |
| 959-285 | Verizon Wireless | Mobile carrier | 2026 |
| 959-595 | 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.