Illinois · Central Time
Springfield, IL Area Codes
Springfield is served by 2 area codes (217, 447). Here's which is original, which are overlays, and how to pick one for a new local number.
Last updated October 1, 2026
Area codes serving Springfield
Springfield sits in Illinois, part of the Midwest region and the Central Time zone. Its numbers are spread across an overlay of 2 codes that all cover the same ground: 217, 447.
The original code is 217 (in service since 1947). As the area ran low on numbers, regulators added overlay codes on top instead of splitting the city, so longtime residents kept their numbers while new lines received a newer code.
| Code | Area served | In service |
|---|---|---|
| 217 | Central Illinois including Springfield, Champaign-Urbana, Decatur and Quincy | January 1, 1947 |
| 447 | Central Illinois including Springfield, Champaign-Urbana, Decatur and Quincy | March 27, 2021 |
Nearby cities sharing these area codes
- Champaign
- Decatur
- Urbana
- Quincy
- Danville
- Charleston
- Mattoon
- Jacksonville
- Effingham
- Taylorville
- Lincoln
How to pick an area code for a new number
When you activate a new line in Springfield, the carrier assigns whichever code has numbers available — you usually can't choose. If a specific code matters to you (for example the prestige of 217), ask the carrier whether any blocks remain, or request a number transfer. All codes here dial identically and cost the same.
Dialing in Springfield
Because Springfield is an overlay area, 10-digit dialing is mandatory: always dial the area code plus the seven-digit number, even for a neighbor. See 10-digit dialing and overlay area codes for the background. For every code in Illinois, visit the Illinois area codes page.
Quick answers
Springfield area code FAQ
What area codes does Springfield use?
Springfield, IL is served by 2 area codes: 217, 447.
Which is the original Springfield area code?
217 is the original code for Springfield, in service since 1947; the others were added later for more numbers.
Do I need to dial the area code in Springfield?
Yes. With multiple overlapping codes, 10-digit dialing is required for every call in this area.