Phone numbers in Winchester, Massachusetts
Winchester has 18 phone prefixes in area code 781.
Biggest holders: MetroPCS (T-Mobile), Verizon (local phone), MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 28%
- Local phone company 22%
- Internet / business phone carrier 39%
- Phone company 11%
Every prefix in Winchester
Search the first six digits of a number in this list. If it's here, the number started in Winchester with the carrier shown. If it isn't, check the Massachusetts page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 781-218 | Tc Systems | Phone company | – |
| 781-358 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 781-368 | Verizon (local phone) | Local phone company | – |
| 781-369 | Comcast | Internet / business phone carrier | – |
| 781-389 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 781-570 | MetroPCS (T-Mobile) | Mobile carrier | 2002 |
| 781-589 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 781-604 | Onvoy | Internet / business phone carrier | – |
| 781-625 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 781-717 | Rcn Telecom Services | Phone company | – |
| 781-721 | Verizon (local phone) | Local phone company | – |
| 781-722 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 781-729 | Verizon (local phone) | Local phone company | – |
| 781-756 | Verizon (local phone) | Local phone company | – |
| 781-760 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 781-838 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 781-977 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 781-983 | MetroPCS (T-Mobile) | Mobile carrier | – |
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.