Phone numbers in Burlington, Colorado
Burlington has 6 phone prefixes in area code 719.
Biggest holders: Verizon Wireless, Onvoy, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Local phone company 17%
- Internet / business phone carrier 33%
Every prefix in Burlington
Search the first six digits of a number in this list. If it's here, the number started in Burlington with the carrier shown. If it isn't, check the Colorado page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 719-340 | AT&T Mobility | Mobile carrier | – |
| 719-342 | Verizon Wireless | Mobile carrier | – |
| 719-343 | Verizon Wireless | Mobile carrier | – |
| 719-346 | CenturyLink / Lumen | Local phone company | – |
| 719-356 | Onvoy | Internet / business phone carrier | 2007 |
| 719-825 | Onvoy | Internet / business phone 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.