Phone numbers in Beaver Dam, Kentucky
Beaver Dam has 10 phone prefixes in area codes 270, 364.
Biggest holders: Onvoy, AT&T Mobility, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 40%
- Local phone company 10%
- Internet / business phone carrier 50%
Every prefix in Beaver Dam
Search the first six digits of a number in this list. If it's here, the number started in Beaver Dam with the carrier shown. If it isn't, check the Kentucky page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 270-256 | AT&T Mobility | Mobile carrier | 2001 |
| 270-274 | AT&T (local phone) | Local phone company | – |
| 270-289 | Onvoy | Internet / business phone carrier | – |
| 270-363 | AT&T Mobility | Mobile carrier | 2006 |
| 270-716 | Onvoy | Internet / business phone carrier | – |
| 270-730 | Charter / Spectrum | Internet / business phone carrier | – |
| 270-775 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 270-947 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 270-955 | Verizon Wireless | Mobile carrier | – |
| 364-220 | Onvoy | Internet / business phone carrier | 2021 |
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.