Illinois is anchored by Chicago — the 3rd-largest US city and a world financial, logistics, and tech hub — plus a vast downstate agricultural and manufacturing economy.
Illinois's 13 area codes concentrate in the greater Chicago metro — 312 (Loop), 773 (city neighborhoods), 847/224 (North Shore), 630/331 (DuPage/Kane), 708 (south and west suburbs) — with 217 (Springfield), 309 (Peoria), 815 (Rockford), and 618 (Southern Illinois) serving the rest of the state in the Central Time zone.
Illinois is anchored by Chicago — the 3rd-largest US city and a world financial, logistics, and tech hub — plus a vast downstate agricultural and manufacturing economy. Chicago alone drives 13 area codes across the 3rd-largest US city — finance, logistics, tech, and healthcare concentrated in one metro — while downstate codes serve manufacturing and agriculture across the Prairie State.
From Chicago to Joliet instant number activation across every Illinois market.
Every feature Illinois businesses rely on. No bundles. No hidden costs.
Field 312, 773, and 847 calls from anywhere — Chicago's financial district generates high-value inbound traffic that can't afford a missed ring.
LaSalle Street finance, Fulton Market tech, and downstate manufacturing each need separate lines — Illinois's 13 codes serve wildly different industries.
Chicago's markets move fast — call recording and volume alerts let compliance review conversations and ops spot staffing gaps before they cost deals.
Four steps to a live Illinois number. No hardware, no contracts.
Choose from 312, 773, 847 or any IL code to serve Chicago's Loop, the suburbs, or downstate markets.
Plans from a solo Chicago trader to a 13-code statewide operation — month-to-month, all features on every tier.
Configure Central Time hours, set a LaSalle Street IVR, and activate your Illinois number live in seconds.
Chicago finance clients see a local code — call recording, analytics, and SMS active from the first ring.
Pick a region, then select any state to see every active area code with city coverage, time zones, and a number-picker shortcut.
Everything you need to know about Illinoisarea codes and virtual phone numbers. Can't find an answer? Our team is one click away.
Illinois numbers on TKOS follow Central Time (CT) (UTC-6). Routing rules, business hours, and call schedules all adjust automatically — no manual configuration needed.
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