730 Area Code
The 730 area code is a telephone area code serving southern Illinois.
Federal Data
State Data
County Data
City Data
The 730 area code is a telephone area code serving southern Illinois.
Federal Data
State Data
County Data
City Data
Area code 730 covers the southern portion of Illinois.
Area code 730 is an overlay to area code 618. This means that area code 730 covers the same geographic area as area code 618. Area code 618 was one of the original area codes from 1947. Area code 730 was implemented with an in-service date of July 7, 2023. Ten-digit dialing is required.
Area code 730 is a general purpose code which was placed in service on July 7, 2023.
Our Illinois phone number lookup service will analyze the three-digit prefix of any 730 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Illinois geographic region, and local calling area associated with the phone number.
| Company | Number of Prefixes |
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| Rate Center | Number of Prefixes |
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