O'Fallon, MO Area Code
O'Fallon, Missouri (population 96,101) uses area code 636.
Carriers with O'Fallon numbers
24 prefixes are assigned to the O'Fallon exchange: 29% mobile, 21% VoIP and cable, 50% landline.
| Carrier | Prefixes |
|---|---|
| Brightspeed Of Missouri | 8 |
| AT&T Mobility | 4 |
| T-Mobile | 3 |
| Charter Ip Enabled Services | 2 |
| Boost Subscriberco L.L.C. | 1 |
| Shelcomm | 1 |
| Paetec Itel | 1 |
| Lumen (Level 3) | 1 |
Area codes used in O'Fallon
| Area code | Prefixes serving O'Fallon | Main carriers in this code |
|---|---|---|
| 636 | 24 | AT&T (Southwestern Bell), Brightspeed Of Missouri, Onvoy (Sinch) |
O'Fallon phone number prefixes
Numbers starting with these first six digits were originally assigned to the O'Fallon exchange.
636-240Brightspeed Of Missouri636-272Brightspeed Of Missouri636-281Brightspeed Of Missouri636-293T-Mobile636-294Charter Ip Enabled Services636-312AT&T Mobility636-339T-Mobile636-351Boost Subscriberco L.L.C.636-379Brightspeed Of Missouri636-385Brightspeed Of Missouri636-409Charter Ip Enabled Services636-439AT&T Mobility636-470Shelcomm636-474Brightspeed Of Missouri636-515AT&T Mobility636-542Paetec Itel636-544AT&T Mobility636-614Lumen (Level 3)636-630Commio636-696AT&T (Teleport)636-849T-Mobile636-874Ton80 Communications636-978Brightspeed Of Missouri636-980Brightspeed Of Missouri
Nearby cities in area code 636
- St. Charles
- St. Peters
- Florissant
- Wentzville
- Chesterfield
- Wildwood
- Ballwin
- Hazelwood
- Old Jamestown
- Warrensburg
- Lake St. Louis
- Manchester
Questions
- What is the area code for O'Fallon, MO?
- The area code for O'Fallon, Missouri is 636.
- What time zone is O'Fallon in?
- O'Fallon is in the Central time zone.