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Central time zone
Current Time in O Fallon: 03:49 AM
O Fallon Area Codes
Here is the current list of area codes in O Fallon, MO. There is currently 1 area code(s) in O Fallon. Search all the most up-to-date currently used O Fallon area codes below.
Central time zone
Current Time in O Fallon: 03:49 AM
Area Code | State | City | Timezone |
---|---|---|---|
636 | Missouri | O Fallon | Central |