Local Phone Numbers
Illinois
773 Area Code
Looking to grow your business in Chicago and build stronger customer connections? A 773 area code number helps you build local trust and boost answer rates — without having a physical office in Illinois.
DialLink makes it easy for SMBs and startups to get a local number with powerful features like AI voice agents, call handling automation, and an intuitive setup. The 773 area code is an overlay for the original 312 area code, and both now serve the same central Chicago area, including The Loop and many surrounding neighborhoods.
The 773 area code covers central and northwestern portions of Chicago, including many neighborhoods just outside The Loop. It was introduced as an overlay to the 312 area code to expand number availability in the area. This means both area codes serve the same region and are equally recognizable to local residents and businesses.
Whether you're a local entrepreneur, a growing startup, or a national company targeting the Chicago market, a 773 number positions you as local and trustworthy.
From finance and logistics to tech and media, Chicago is a high-value market full of opportunity. A 773 number gives your business a credible presence in the Windy City.
When you choose a local number from DialLink, you're getting more than just digits:
Automate routine calls, appointment booking, and more
Get insights into calls and improve follow-ups
Customize call flows, routing, and voicemail rules
Answer calls on mobile, desktop, web app, or desk phones
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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.
Serving more than just Illinois? DialLink offers local and international numbers in over 100 countries — no physical office required. Scale your communication globally with ease.
Area code 773 covers Chicago, Illinois, excluding downtown neighborhoods. It serves most of the city's northwest, west, and north side neighborhoods.
An overlay area code is added to a geographic region already served by another area code. It allows for more phone numbers without requiring existing users to change their numbers.
There are over 300 active area codes in the United States. Overlays and new codes are introduced regularly to meet growing 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.