North American Telephone Operator
North American
Telephone Operator

Phone prefix +1-773978

Phone prefix: +1773978
This prefix is distributed within the state Illinois
The largest city within this prefix is Chicago, IL
District: Cook
The largest organization: Ameritech Illinois
Phone numbers of the state Illinois
Time Zone: Central
Winter time: UTC-6
Summer time: UTC-5
The largest city within the prefix of +1-773978.... numbers is shown below Chicago, IL.