Union, MO Area Code
Union, Missouri (population 13,445) uses area code 636.
Carriers with Union numbers
12 prefixes are assigned to the Union exchange: 25% mobile, 25% VoIP and cable, 50% landline.
| Carrier | Prefixes |
|---|---|
| AT&T Mobility | 3 |
| AT&T (Southwestern Bell) | 3 |
| Lumen (Level 3) | 2 |
| Metropcs | 1 |
| Telnyx | 1 |
| Aurora Communications | 1 |
| Terra Nova Telecom | 1 |
Area codes used in Union
| Area code | Prefixes serving Union | Main carriers in this code |
|---|---|---|
| 636 | 12 | AT&T (Southwestern Bell), Brightspeed Of Missouri, Onvoy (Sinch) |
Union phone number prefixes
Numbers starting with these first six digits were originally assigned to the Union exchange.
636-210AT&T Mobility636-234Lumen (Level 3)636-249Metropcs636-286AT&T Mobility636-303Telnyx636-388Lumen (Level 3)636-582Aurora Communications636-583AT&T (Southwestern Bell)636-584AT&T (Southwestern Bell)636-649AT&T Mobility636-666Terra Nova Telecom636-744AT&T (Southwestern Bell)
Nearby cities in area code 636
- O'Fallon
- St. Charles
- St. Peters
- Florissant
- Wentzville
- Chesterfield
- Wildwood
- Ballwin
- Hazelwood
- Old Jamestown
- Warrensburg
- Lake St. Louis
Questions
- What is the area code for Union, MO?
- The area code for Union, Missouri is 636.
- What time zone is Union in?
- Union is in the Central time zone.