Phone numbers in Sterling, Colorado
Sterling has 12 phone prefixes in area code 970.
Biggest holders: CenturyLink / Lumen, Level 3 (Lumen), N.e. Colorado Cellular. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 33%
- Internet / business phone carrier 33%
Every prefix in Sterling
Search the first six digits of a number in this list. If it's here, the number started in Sterling with the carrier shown. If it isn't, check the Colorado page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 970-425 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 970-458 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 970-466 | N.e. Colorado Cellular | Mobile carrier | 2001 |
| 970-520 | N.e. Colorado Cellular | Mobile carrier | – |
| 970-521 | CenturyLink / Lumen | Local phone company | – |
| 970-522 | CenturyLink / Lumen | Local phone company | – |
| 970-526 | CenturyLink / Lumen | Local phone company | – |
| 970-571 | Verizon Wireless | Mobile carrier | – |
| 970-580 | Verizon Wireless | Mobile carrier | – |
| 970-606 | Commio | Internet / business phone carrier | 2023 |
| 970-740 | CenturyLink / Lumen | Local phone company | 2020 |
| 970-762 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
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.