Phone numbers in Acton, Massachusetts
Acton has 29 phone prefixes in area codes 351, 978.
Biggest holders: T-Mobile (including Sprint), Verizon (local phone), Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 38%
- Local phone company 21%
- Internet / business phone carrier 34%
- Phone company 7%
Every prefix in Acton
Search the first six digits of a number in this list. If it's here, the number started in Acton with the carrier shown. If it isn't, check the Massachusetts page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 351-209 | Exiant Communications | Phone company | 2019 |
| 351-218 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 351-220 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 351-235 | T-Mobile (including Sprint) | Mobile carrier | – |
| 351-244 | Verizon Wireless | Mobile carrier | 2024 |
| 351-245 | T-Mobile (including Sprint) | Mobile carrier | – |
| 351-667 | Fractel | Internet / business phone carrier | 2021 |
| 978-201 | T-Mobile (including Sprint) | Mobile carrier | – |
| 978-206 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 978-263 | Verizon (local phone) | Local phone company | – |
| 978-264 | Verizon (local phone) | Local phone company | – |
| 978-266 | Verizon (local phone) | Local phone company | – |
| 978-268 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 978-274 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 978-393 | Bandwidth | Internet / business phone carrier | – |
| 978-394 | T-Mobile (including Sprint) | Mobile carrier | – |
| 978-429 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 978-489 | T-Mobile (including Sprint) | Mobile carrier | – |
| 978-621 | Verizon Wireless | Mobile carrier | – |
| 978-631 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 978-635 | Verizon (local phone) | Local phone company | – |
| 978-795 | Tc Systems | Phone company | – |
| 978-844 | Verizon Wireless | Mobile carrier | 2002 |
| 978-849 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 978-881 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 978-893 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 978-908 | T-Mobile (including Sprint) | Mobile carrier | – |
| 978-929 | Verizon (local phone) | Local phone company | – |
| 978-936 | 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.