Phone numbers in Greenfield, Tennessee
Greenfield has 6 phone prefixes in area code 731.
Biggest holders: Verizon Wireless, AT&T (local phone), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 17%
- Internet / business phone carrier 33%
- Phone company 17%
Every prefix in Greenfield
Search the first six digits of a number in this list. If it's here, the number started in Greenfield with the carrier shown. If it isn't, check the Tennessee page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 731-233 | Verizon Wireless | Mobile carrier | – |
| 731-235 | AT&T (local phone) | Local phone company | – |
| 731-237 | Onvoy | Internet / business phone carrier | – |
| 731-480 | Aeneas Communications | Phone company | – |
| 731-621 | Verizon Wireless | Mobile carrier | 2001 |
| 731-678 | Charter / Spectrum | Internet / business phone carrier | 2005 |
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.