773 area code: location, overlays and numbers
In Chicago, Illinois, area code 773 serves as a US telephone area code and has operated since 1996. It shares an overlay with 872.
- Location
- Chicago, Illinois
- Service began
- 1996
- Local time zone
- Central time
- Overlay
- 872
- Calls within the area
- 1 + 10-digit dialing
- Rate centers
- 1
- Projected exhaustion
- 2046
- Code for the country
- +1 (United States)
Public NANPA reports form the basis here: the area code report and the rate-centre report, file dated 11/01/2026. Exhaust year: NANPA projections 2026-1 (April 2026). Not an official NANPA site.
Get your own 773 number
There are two routes to a 773 number. A provider includes a new number with its plan. You choose it when you sign up from the numbers the provider holds in the code. Numbers already held by a seller are listed for a one-time price and often have a pattern. After buying one, you move it to a provider.
Providers, sorted by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers that list local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
We may receive a referral fee from certain sellers and providers. This never affects the ranking, which is based on first-year cost. How we earn
Area codes connected to this one
The same area and the same numbers pool: 872. Any of these codes can provide a new number in this area, so request the one you prefer.
The other Illinois area codes are 217, 312, 618, 815, 309, 708, 847, 630, 224, 779, 331, 447, 464, 861 and 730.
Guides by city: Chicago area codes.
773 area code questions
Where does area code 773 operate?
Around Chicago-Naperville-Elgin, IL-IN, 773 rings in Chicago, Illinois.
Which country code applies to a 773 number?
+1. The North American Numbering Plan covers 773, so from abroad you dial +1 773 along with the 7-digit number.
What time is it in the 773 area code?
Area code 773 uses Central time.
Who calls using a 773 number?
This code covers homes, mobiles and local businesses, plus callers who pretend to have a local number. What a 773 number on your screen shows is where it was assigned, not who is calling.