Phone numbers in Plymouth, Michigan
Plymouth has 44 phone prefixes in area code 734.
Biggest holders: AT&T (local phone), Teleport Communications America, MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 16%
- Local phone company 39%
- Internet / business phone carrier 43%
- Paging service 2%
Every prefix in Plymouth
Search the first six digits of a number in this list. If it's here, the number started in Plymouth with the carrier shown. If it isn't, check the Michigan page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 734-207 | AT&T (local phone) | Local phone company | – |
| 734-228 | AT&T Mobility | Mobile carrier | 2016 |
| 734-233 | AT&T Mobility | Mobile carrier | 2004 |
| 734-254 | AT&T (local phone) | Local phone company | – |
| 734-259 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 734-335 | Teleport Communications America | Internet / business phone carrier | – |
| 734-354 | AT&T (local phone) | Local phone company | – |
| 734-357 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 734-359 | Comcast | Internet / business phone carrier | 2017 |
| 734-386 | AT&T (local phone) | Local phone company | 2005 |
| 734-392 | Teleport Communications America | Internet / business phone carrier | – |
| 734-404 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 734-414 | AT&T (local phone) | Local phone company | – |
| 734-416 | AT&T (local phone) | Local phone company | – |
| 734-420 | AT&T (local phone) | Local phone company | – |
| 734-446 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 734-451 | AT&T (local phone) | Local phone company | – |
| 734-453 | AT&T (local phone) | Local phone company | – |
| 734-454 | AT&T (local phone) | Local phone company | – |
| 734-455 | AT&T (local phone) | Local phone company | – |
| 734-456 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 734-459 | AT&T (local phone) | Local phone company | – |
| 734-463 | Onvoy | Internet / business phone carrier | 2020 |
| 734-468 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 734-564 | T-Mobile (including Sprint) | Mobile carrier | – |
| 734-566 | American Messaging Services | Paging service | – |
| 734-582 | AT&T (local phone) | Local phone company | – |
| 734-617 | AT&T Mobility | Mobile carrier | 2026 |
| 734-637 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 734-656 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 734-667 | Comcast | Internet / business phone carrier | – |
| 734-737 | AT&T (local phone) | Local phone company | – |
| 734-738 | Teleport Communications America | Internet / business phone carrier | – |
| 734-781 | Teleport Communications America | Internet / business phone carrier | – |
| 734-844 | AT&T (local phone) | Local phone company | – |
| 734-862 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 734-891 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 734-892 | Onvoy | Internet / business phone carrier | 2014 |
| 734-927 | Bandwidth | Internet / business phone carrier | – |
| 734-928 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 734-979 | Verizon Wireless | Mobile carrier | – |
| 734-981 | AT&T (local phone) | Local phone company | – |
| 734-983 | AT&T (local phone) | Local phone company | – |
| 734-987 | 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.