Phone numbers in Wilmington, Massachusetts
Wilmington has 25 phone prefixes in area code 978.
Biggest holders: Verizon (local phone), Windstream (PAETEC), Bandwidth. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 8%
- Local phone company 24%
- Internet / business phone carrier 60%
- Phone company 8%
Every prefix in Wilmington
Search the first six digits of a number in this list. If it's here, the number started in Wilmington with the carrier shown. If it isn't, check the Massachusetts page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 978-203 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 978-205 | Bandwidth | Internet / business phone carrier | – |
| 978-229 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 978-253 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 978-267 | Bandwidth | Internet / business phone carrier | – |
| 978-284 | Verizon (local phone) | Local phone company | – |
| 978-315 | Peerless Network Of Massachusetts | Internet / business phone carrier | – |
| 978-404 | MetroPCS (T-Mobile) | Mobile carrier | 2002 |
| 978-444 | Bandwidth | Internet / business phone carrier | – |
| 978-447 | Comcast | Internet / business phone carrier | – |
| 978-520 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 978-527 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 978-570 | Tc Systems | Phone company | – |
| 978-604 | Verizon Wireless | Mobile carrier | 2001 |
| 978-642 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 978-657 | Verizon (local phone) | Local phone company | – |
| 978-658 | Verizon (local phone) | Local phone company | – |
| 978-661 | Verizon (local phone) | Local phone company | – |
| 978-694 | Verizon (local phone) | Local phone company | – |
| 978-737 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 978-752 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 978-753 | Tc Systems | Phone company | – |
| 978-909 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 978-924 | Bandwidth | Internet / business phone carrier | – |
| 978-988 | Verizon (local phone) | Local phone company | – |
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.