Phone numbers in Middletown, Connecticut
Middletown has 31 phone prefixes in area codes 860, 959.
Biggest holders: AT&T (local phone), MCImetro (Verizon Business), Windstream (PAETEC). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 16%
- Local phone company 48%
- Internet / business phone carrier 35%
Every prefix in Middletown
Search the first six digits of a number in this list. If it's here, the number started in Middletown with the carrier shown. If it isn't, check the Connecticut page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 860-262 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-301 | AT&T Mobility | Mobile carrier | – |
| 860-316 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-342 | AT&T (local phone) | Local phone company | – |
| 860-343 | AT&T (local phone) | Local phone company | – |
| 860-344 | AT&T (local phone) | Local phone company | – |
| 860-346 | AT&T (local phone) | Local phone company | – |
| 860-347 | AT&T (local phone) | Local phone company | – |
| 860-349 | AT&T (local phone) | Local phone company | – |
| 860-358 | AT&T (local phone) | Local phone company | – |
| 860-398 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 860-613 | AT&T (local phone) | Local phone company | – |
| 860-632 | AT&T (local phone) | Local phone company | – |
| 860-635 | AT&T (local phone) | Local phone company | – |
| 860-636 | AT&T (local phone) | Local phone company | – |
| 860-638 | AT&T (local phone) | Local phone company | – |
| 860-685 | AT&T (local phone) | Local phone company | – |
| 860-704 | AT&T (local phone) | Local phone company | – |
| 860-740 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 860-754 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 860-759 | AT&T Mobility | Mobile carrier | 2002 |
| 860-788 | Bandwidth | Internet / business phone carrier | – |
| 860-807 | Teleport Communications America | Internet / business phone carrier | – |
| 860-834 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 860-852 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 860-854 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 860-894 | AT&T (local phone) | Local phone company | – |
| 860-975 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 959-246 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 959-559 | TON80 Communications | Internet / business phone carrier | 2022 |
| 959-996 | T-Mobile (including Sprint) | Mobile carrier | 2026 |
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.