Area Code 773 Phone Number
for Your Business
Get a local 773 number for your business in Chicago, IL. Cloud VoIP with SMS, an auto attendant (IVR), and more — starting at $30/ext/mo. No contracts.
What Is Area Code 773?
Area code 773 is a North American telephone area code serving Chicago, Illinois. It has been in service since October 12, 1996 and operates on Central Time. It is part of the 773/872 overlay complex. Businesses operating in the 773 area code region use local numbers to build trust with customers, improve answer rates, and establish a professional local presence.
With Zonitel, you can get a new 773 area code number or port your existing one with guided onboarding — no hardware required. Your team can make and receive calls from any device using the Zonitel mobile app or web portal.
Area Code 773 at a Glance
- Region
- Chicago (Outer Neighborhoods), Illinois
- In service
- Since October 12, 1996
- Time zone
- Central Time
- Overlay
- Shares its territory with 872; local calls use 10-digit dialing
- History
- Created on October 12, 1996 from area code 312
- Telemarketing hours
- 8 a.m.–9 p.m. Central Time for residential numbers (TCPA, 47 CFR 64.1200(c)(1))
Why Your Business Needs a 773 Local Number
A local number tells customers you're part of the community. People in Chicago are more likely to pick up a call from a 773 number they recognize than from an unfamiliar out-of-area number.
Everything Included With Your 773 Number
Zonitel is not just a phone number — it's a complete cloud business phone system. Every plan includes:
Frequently Asked Questions About Area Code 773
What cities use area code 773?
Area code 773 serves the Chicago (Outer Neighborhoods) area of Illinois. Cities in the 773 region include Chicago, IL.
Is area code 773 an overlay?
Yes. 773 is part of the 773/872 overlay, so new numbers in this region can come from any of those area codes, and local calls require 10-digit dialing.
What time zone is area code 773 in?
Area code 773 is in Central Time. Telemarketing calls to residential 773 numbers are limited to 8 a.m.–9 p.m. Central Time under the TCPA (47 CFR 64.1200(c)(1)).
Can I get a 773 number for my business without moving there?
Yes. With Zonitel's cloud VoIP, you can get a 773 area code number regardless of where your business is physically located. This lets you establish a local presence in Chicago without a physical office.
Can I keep my existing 773 number and switch to Zonitel?
Yes. Number porting is free. Porting commonly takes 5–10 business days depending on your current carrier, and your old service stays active until the coordinated cutover.
How much does a 773 business phone number cost?
Zonitel plans start at $30/extension/month plus tax, with no setup fees and no contracts. Your 773 local number is included in the plan.
Get Your 773 Area Code Number Today
30-day free trial. No annual contract required. Guided onboarding.