Discovering the truth about a phone number, email, or address history can be eye-opening, please use this tool with caution.USA Area code 773 - Chicago, IL
Area code 773 is a North American Numbering Plan telephone area code serving Area code in the U.S. state of Illinois in Illinois. It today covers roughly 2.7 million residents across 1 cities and towns .
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Who called me from area code 773?
A call from area code 773 most likely originates from Chicago or elsewhere in Illinois - but caller ID spoofing means the area code alone cannot confirm who called. Right now, 25 773 numbers carry scam reports on this page. The only reliable way to identify the caller is to check the full 10-digit number:
- Run the number through the reverse phone lookup at the top of this page to see the owner's name, carrier, and location.
- Compare it against the recently reported scam numbers in 773 below.
- If the call was unwanted, report it to the FTC and use the report form on this page so other 773 residents see it.
Report a scam call from 773 Help other 773-area residents - takes 20 seconds, no signup
Reports are reviewed by our team before appearing on the page. The highest-reported numbers get added to the “Recently reported scam numbers” list above with a “community” badge.
Should I answer a call from a 773 number? Take the 30-second quiz - 5 questions, verdict + advice
Runs entirely in your browser - nothing is sent or stored.
Next step: run a reverse-phone lookup on the number to see everything public about it.
Where is the 773 area code? Coverage map
The pin marks Chicago, the largest city served by area code 773. Zoom and pan to explore the coverage region.
Interactive map. Click a pin for city details. Data © OpenStreetMap contributors.
Area codes near 773 (overlay + neighboring)
If a caller ID shows one of these codes, the call is probably still from the Chicago area or a nearby region. Click any code to see its own page.
773 area code robocall complaints (FCC data)
Monthly count of FCC complaints tagged to numbers in area code 773 over the last 12 months.
116 complaints in the last 12 months. That's about 71% fewer robocall complaints per capita than the US average - 4 per 100,000 residents vs a national average of 14.7.
Source: FCC Consumer Complaint Data (dataset vakf-fz8e). Data as of August 9, 2026. Refreshed monthly.
How 773 area code spam calls arrive
Based on 116 FCC complaints in the last 12 months, here's how 773 spam calls reached recipients:
FCC Consumer Complaint Data, last 12 months as of August 9, 2026. Refreshed monthly. Note: the FCC dataset labels method (Live Voice / Prerecorded / SMS) but does not classify scam type (IRS impersonation, tech support fraud, etc.) - those come from community reports.
Recently reported scam numbers in 773
Numbers reported to the FCC or by our community in the last 12 months. Click any to run a full reverse-phone lookup.
Source: FCC Consumer Complaint Data, last 12 months as of August 9, 2026. Refreshed monthly. Numbers submitted via the report form near the top of this page get added here with a “community” badge after moderation.
How to block 773 spam calls (by carrier)
Getting repeated spam calls from 773 numbers around Chicago, Illinois? You can't legitimately block every 773 call without also missing legitimate ones from Chicago, Illinois - so the practical fix is to turn on your carrier's free spam filter and register on the national do-not-call list. Step-by-step for each major US carrier below.
AT&T
- Download the free AT&T ActiveArmor app (iOS + Android).
- Sign in with your wireless number.
- Enable Fraud Blocking and Suspected Spam Warning.
- To block a specific number, tap the call in your history → Block.
Verizon
- Download the free Verizon Call Filter app (iOS + Android).
- Sign in with your Verizon account.
- Turn on Spam Filter.
- To block a specific number: My Verizon → Blocks → Add Number.
T-Mobile
- Download the free Scam Shield app (iOS + Android).
- Enable Scam Block (blocks known scam calls silently).
- Use Scam ID to see “Scam Likely” caller ID on suspicious numbers.
- To block a specific number, dial
#662#from your device.
All carriers
- Register on the FTC's National Do-Not-Call list.
- Report unwanted calls to the FCC at fcc.gov/complaints.
- On iPhone: Settings → Phone → Silence Unknown Callers.
- On Android: Phone app → ⋮ → Settings → Caller ID & spam.
Sources: carrier support pages (AT&T, Verizon, T-Mobile), FCC consumer guides. Free features as of 2026. Every one of these steps costs nothing.
History of the 773 area code
state of Illinois. It serves the outer areas of Chicago, outside the Loop and the innermost neighborhoods. Originally, all of Chicago and its suburbs used area code 312.
773 area code FAQ: common questions
What area code is 773?
Area code 773 is a North American Numbering Plan area code that serves Area code in the U.S. state of Illinois in Illinois, primarily including Chicago and surrounding communities.
Where does area code 773 cover?
Area code 773 covers the Chicago, Illinois area.
Is 773 a real area code or a scam?
773 is a real, actively-assigned US area code - not itself a scam. However, spammers do use 773 numbers because the code is well-known and appears local to millions of residents. Always verify the specific number, not the area code.
How do I block 773 spam calls?
You cannot legitimately block an entire area code without also blocking legitimate calls from Chicago. Better options: register on the National Do-Not-Call list, enable your carrier's spam-filter (all major US carriers now offer this free), and report unwanted calls to the FCC at fcc.gov/complaints so they show up in the trend data on this page.
What's the overlay area code for 773?
773 does not currently have an overlay area code assigned. New numbers in the region are still issued with the 773 prefix.
Sources
Or explore reverse-phone lookup for any US number.