Eureka, MO Area Code
Eureka, Missouri (population 13,422) uses area code 636.
Carriers with Eureka numbers
6 prefixes are assigned to the Eureka exchange: 0% mobile, 50% VoIP and cable, 50% landline.
| Carrier | Prefixes |
|---|---|
| Onvoy (Sinch) | 2 |
| AT&T (Southwestern Bell) | 2 |
| Peerless Network | 1 |
| Paetec Itel | 1 |
Area codes used in Eureka
| Area code | Prefixes serving Eureka | Main carriers in this code |
|---|---|---|
| 636 | 6 | AT&T (Southwestern Bell), Brightspeed Of Missouri, Onvoy (Sinch) |
Eureka phone number prefixes
Numbers starting with these first six digits were originally assigned to the Eureka exchange.
636-280Onvoy (Sinch)636-429Peerless Network636-494Onvoy (Sinch)636-549Paetec Itel636-587AT&T (Southwestern Bell)636-938AT&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 Eureka, MO?
- The area code for Eureka, Missouri is 636.
- What time zone is Eureka in?
- Eureka is in the Central time zone.