217
Springfield and Champaign-Urbana Illinois Guide
Discover what area code 217 Illinois covers, from Springfield to Champaign-Urbana, plus the 447 overlay, 10-digit dialing rules, and scam tips before you call.
IL · 13 Area Codes
Illinois
Area Codes
Illinois's economy leans on logistics, finance, and manufacturing, centered around Chicago, Aurora, and Naperville. Get a local virtual phone number with any Illinois area code.
13 area codes
Original code 312 · 1947
Capital: Springfield
Carrier-grade network
// Why IL Virtual Numbers
Why businesses choose an Illinois virtual number
A local Illinois number shows callers which part of the state you serve.
1947
312 first assigned
312 came first, in 1947
312 was Illinois's original area code, assigned in 1947. The newest, 872, arrived in 2009. Each of the 13 codes below maps to its own part of the state, so the code you pick shows which region you serve.
01 — Illinois at a Glance
Illinois, by the numbers.
Illinois launched in 1947 with four codes: 312 (Chicago), 815 (north), 217 (central), and 618 (south). Peoria's 309 split from 815 in 1957.
Chicago's suburbs split off as 708 in 1989, then 847 and 630 in the mid-1990s. 773 took the city outside downtown, leaving 312 just the Loop.
By the 2000s, overlays took over: 224 over 847, 331 over 630, then 779 over 815 and 872 over 312/773 in 2009 — Illinois's current 13-code lineup.
Did you know?
Area code 872, activated in November 2009, was Illinois's way of adding numbers to Chicago without redrawing any boundaries — it simply shares the exact same footprint as 312 and 773.
// 13 area codes
Illinois Virtual Phone Numbers
Select any area code to get a local virtual number for that region of Illinois.
224
Area code 224 shares the exact same boundary as 847 across Chicago's North Shore and northwest suburbs. See the cities, the corporate corridor, and the dialing rules.
309
Area code 309 Illinois covers Peoria and the Quad Cities. See what the new 861 overlay changed, how 10-digit dialing works, and why a local 309 number still wins trust.
312
312 is downtown Chicago's area code — the Loop, River North, Streeterville and the Near West and South Sides. How it shrank to a few square miles, how 773 and 872 fit in, and what a 312 call means.
331
Area code 331 Illinois overlays 630 across Chicago's western suburbs. See the coverage, the 2007 overlay history, and how ten-digit dialing keeps every call connecting.
618
Area code 618 Illinois has served southern Illinois since 1947. See the Metro East coverage, the new 730 overlay, and how ten-digit dialing keeps every call connecting.
630
DuPage County, Illinois Business Guide
The 630 area code covers Naperville, Aurora & DuPage County, Illinois. Explore its history, 331 overlay, time zone, scam alerts & how to get a local business number.
708
Chicago Suburbs Business Phone Guide
The 708 area code covers Chicago's south and west suburbs in Cook County. Explore its 1989 split from 312, 464 overlay, time zone, scam alerts & business number tips.
773
Chicago Neighborhoods, History & Business Guide
The 773 area code wraps around Chicago's neighborhoods outside the Loop. See its coverage, the 1996 split from 312, scam awareness, and how the 872 overlay changed dialing.
779
Area code 779 Illinois overlays 815 across Rockford, Joliet, and northern Illinois. See the coverage, the 2007 overlay history, and the ten-digit dialing rules.
815
Learn where the 815 area code is located, which Illinois cities and counties it covers, and how to get a local phone number for your home or business today.
847
Area code 847 Illinois covers Chicago's north and northwest suburbs from the North Shore to Schaumburg. See the 1996 split from 708 and the 224 overlay dialing rules.
872
Chicago's Complete Local Number Guide
The 872 area code overlays Chicago's 312 and 773 codes. Learn its 2009 history, the neighborhoods it reaches, and how to get an 872 number for your business.
// Get Started
Get an Illinois number in 3 steps
From choosing a code to setting up call routing.
- 01Step 01
Choose a IL area code
Browse the Illinois area codes above and pick the region that best serves your customers.
- 02Step 02
Select your number
Choose from the numbers available in your selected area code.
- 03Step 03
Set up routing
Configure call routing, business hours, and voicemail from your Rozper dashboard for your Illinois number.
Frequently Asked
Illinois number questions answered.
Everything you need to know before getting an Illinois virtual phone number.
Illinois has 13 active area codes: 217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872. Rozper offers virtual phone numbers in these codes, which you can browse and choose from one dashboard.
312 is Illinois's original area code, assigned in 1947. The most recent addition, 872, followed in 2009.
No. Virtual numbers are location-independent. A business based anywhere in the U.S. or internationally can get a Illinois area code and route calls to any device, team, or call center.
Illinois's capital is Springfield, and the state keeps Central time. Its population is about 12,550,000, across 102 counties.
Illinois's economy centers on logistics, finance, and manufacturing, with Chicago, Aurora, and Naperville as the main business hubs. Chicago's O'Hare is one of the busiest cargo airports in the world.
Questions about Illinois numbers? Get in touch.
// Next door
States that border Illinois
Customers and teams near the Illinoisline often use a neighbouring state's codes. Here are the area codes next door.
Ready for an Illinois number?
Pick an Illinois area code and talk to us about setting up your number.