Phone numbers in Union Star, Missouri
Union Star has 3 phone prefixes in area code 816.
Biggest holders: Windstream Missouri, CenturyLink / Lumen. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 100%
Every prefix in Union Star
Search the first six digits of a number in this list. If it's here, the number started in Union Star with the carrier shown. If it isn't, check the Missouri page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 816-593 | Windstream Missouri | Local phone company | – |
| 816-707 | CenturyLink / Lumen | Local phone company | 2017 |
| 816-909 | Windstream Missouri | Local phone company | 2018 |
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.