•September 2, 2020•
The Illinois Commerce Commission (ICC) today reminded residential and business customers served by the 217 area code to prepare for the introduction of the new 447 area code. The 447 area code will be added as an overlay to the region currently served by area code 217 to ensure continuing supply of telephone numbers for the area. An overlay is the addition of another area code (447) to the same geographic region served by an existing area code (217).
The ICC ordered an area code overlay for the 217 Area Code on August 15, 2006, to be implemented upon the exhaust of available, unassigned 217 prefixes. An overlay does not require customers to change their existing area code or telephone number.     Login or Subscribe to read the rest of this story.