Phone numbers in Glenwood, Iowa
Glenwood has 5 phone prefixes in area code 712.
Biggest holders: Teleport Communications America, UScellular, Btc. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 40%
- Internet / business phone carrier 20%
- Phone company 20%
Every prefix in Glenwood
Search the first six digits of a number in this list. If it's here, the number started in Glenwood with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 712-302 | Teleport Communications America | Internet / business phone carrier | 2013 |
| 712-520 | UScellular | Mobile carrier | – |
| 712-521 | Btc | Phone company | 2019 |
| 712-527 | CenturyLink / Lumen | Local phone company | – |
| 712-800 | Windstream Communications Of The Midewest | Local phone company | 2010 |
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.