Phone numbers in Springcity, Tennessee
Springcity has 5 phone prefixes in area code 423.
Biggest holders: AT&T (local phone), Twin Lakes Communications, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 40%
- Internet / business phone carrier 40%
- Phone company 20%
Every prefix in Springcity
Search the first six digits of a number in this list. If it's here, the number started in Springcity with the carrier shown. If it isn't, check the Tennessee page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 423-365 | AT&T (local phone) | Local phone company | – |
| 423-407 | Twin Lakes Communications | Phone company | 2020 |
| 423-452 | AT&T (local phone) | Local phone company | – |
| 423-799 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
| 423-862 | Onvoy | Internet / business phone carrier | 2023 |
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.