The area code 217 is located in central Illinois and covers a significant portion of the state, including cities such as Springfield, Champaign-Urbana, Danville, Decatur, Jacksonville, and Quincy. Additionally, a new overlay area code, 447, serves the same geographic area as the existing 217 area code. Here are some key points about the 217 area code and the overlay:
- The 217 area code generally covers the central region of the state, serving thirty-five counties.
- The new 447 area code serves the same geographic area currently served by the existing 217 area code.
- To complete local calls in the affected areas, the new dialing procedure requires callers to dial the area code + telephone number or 1 + area code + telephone number.
- Beginning March 27, 2021, new telephone lines or services may be assigned numbers using the new 447 area code.
- Customers with 217 or 447 area code telephone numbers will be affected by the new dialing procedure.
- The new dialing procedure for local calls requires ten digits, including the area code and the seven-digit telephone number.
In summary, the 217 area code covers a large portion of central Illinois, and the addition of the 447 overlay area code means that residents and businesses in this area will need to adjust their dialing procedures for local calls.