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Lake St. Louis, MO Area Code
Lake St. Louis, Missouri (population 19,129) uses area code 636.
Lake St. Louis has no telephone exchange of its own in NANPA records; it is served by the O'Fallon exchange about 5.5 km away.
Carriers with Lake St. Louis 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 Lake St. Louis
| Area code | Prefixes serving Lake St. Louis | Main carriers in this code |
|---|---|---|
| 636 | 24 | AT&T (Southwestern Bell), Brightspeed Of Missouri, Onvoy (Sinch) |
Lake St. Louis 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
- O'Fallon
- St. Charles
- St. Peters
- Florissant
- Wentzville
- Chesterfield
- Wildwood
- Ballwin
- Hazelwood
- Old Jamestown
- Warrensburg
- Manchester
Questions
- What is the area code for Lake St. Louis, MO?
- The area code for Lake St. Louis, Missouri is 636.
- What time zone is Lake St. Louis in?
- Lake St. Louis is in the Central time zone.