United States, Oswego Area Codes

Number structure

+1630551
554
United StatesIllinoisOswegoNumber

List of area codes

630-551
630-554

Local time in Oswego

TimezoneGMTTime
America/Chicago-06:00
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Map of Oswego

Other area codes in Illinois

Area Codes Search Notes

Fixed phone numbers in the United States, state Illinois, Oswego are comprised of a single country code (+1), a 3 digit area code, a 3 digit local office code (or region code), and a 4 digit line code. Making a call with the wrong country, area, or region code can be costly. Browse our sites area and region codes by state and city to ensure you have the correct information for your calls. Each states page contains a list of the cities within that state and the numbers of that area. Also available are local times. So you don’t have to worry about calling too late or early again.

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