Local Phone Numbers
Illinois
312 Area Code
A 312 number connects your business to the heart of Chicago. Covering the city's central areas, this iconic area code lends instant credibility, whether you're based locally or serving customers remotely. While new 312 numbers are mostly unavailable due to limited supply, you can still port your existing number to DialLink. Looking for something new? Area codes 773 and 872 are official overlays for the same region, offering full coverage of the Windy City.
With DialLink, you don't just get a Chicago number — you get a full-featured, AI-powered cloud phone system. It's simple to set up, packed with automation, and built to help SMBs and startups grow.
Area code 312 is one of Chicago's original area codes, covering the city's central business district including the Loop. It's associated with business, finance, tech, and culture — making it a powerful choice for local credibility and brand trust.
When you choose a local number from DialLink, you're getting more than just digits:
Automate routine calls, appointment booking, and more
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Whether you're based in Illinois or simply want to break into the market, DialLink's numbers help your business sound local, feel accessible, and stay organized.
DialLink provides local and international numbers in 100+ countries. Whether you're expanding across the U.S. or reaching global customers, we've got your communications covered.
312 covers downtown Chicago, including the Loop and central business areas of the city.
An overlay area code is assigned to the same geographic region as an existing area code. It allows more phone numbers to be issued without affecting existing ones.
There are over 300 active area codes in the United States, with more added regularly to keep up with demand.
Originally assigned by geography and population size, area codes now follow overlays and other rules to keep up with growth, making them more flexible, though less geographically consistent.
Start today with DialLink's AI-powered cloud phone system and secure your local number. Project professionalism, build trust, and scale your customer communications with ease.
