Area codes 217 and 447

Area codes 217 and 447 are telephone area codes in the North American Numbering Plan (NANP) for much of the central part of the U.S. state of Illinois.

The numbering plan area (NPA) includes the state capital, Springfield, and Champaign, Urbana, Decatur, Taylorville, Lincoln, Danville, Effingham, Quincy, Rantoul, and Jacksonville.

In the original configuration of the first nationwide telephone numbering plan, the numbering plan area 217 included most of Metro East, the Illinois side of the St. Louis metropolitan area.

In 1951, a slight boundary shift reassigned most of the southern portion of Metro East to area code 618, leaving the northern portion in 217.

[3][4] As of March 27, 2021, new central office codes are available for activation by service providers.