Central time zone
Current Time in Oswego: 04:23 AM

Oswego Area Codes

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Here is the current list of area codes in Oswego, IL. There is currently 2 area code(s) in Oswego. Search all the most up-to-date currently used Oswego area codes below.

Central time zone
Current Time in Oswego: 04:23 AM
Area Code State City Timezone
331IllinoisOswegoCentral
630IllinoisOswegoCentral