Phone numbers in Webster City, Iowa
Webster City has 7 phone prefixes in area code 515.
Biggest holders: T-Mobile (including Sprint), UScellular, Premier Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 57%
- Local phone company 14%
- Phone company 29%
Every prefix in Webster City
Search the first six digits of a number in this list. If it's here, the number started in Webster City with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 515-209 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 515-297 | UScellular | Mobile carrier | 2002 |
| 515-524 | Premier Communications | Phone company | 2021 |
| 515-606 | Communications 1 Network | Phone company | – |
| 515-654 | MetroPCS (T-Mobile) | Mobile carrier | 2018 |
| 515-832 | CenturyLink / Lumen | Local phone company | – |
| 515-835 | Verizon Wireless | Mobile carrier | – |
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.