Area code 312
Get a 312 phone number
To get a 312 phone number, pick an available 312 number below and sign up for AvoCall. Your new number works for calls and texts on the phone you already own over WiFi or data. Current web pricing is verified at checkout. No second SIM and no new device are required.
- Location
- Chicago, IL, Illinois
- Time zone
- Central (GMT -6)
The 312 area code covers Chicago, IL and nearby Illinois communities.
Top 20 312 numbers available right now
Pulled live from our carrier network. Last updated: August 25, 2026 at 10:12 AM UTC.
Every number requires an AvoCall plan. Current web pricing is verified at checkout, and number availability changes often.
About the 312 area code
Since 1947, Chicago has been reached through area code 312, one of the original assignments, which also lists Cicero and Schaumburg within its Illinois coverage. Central time applies here.
Three newer codes trace to its territory. 708 and 773 were created out of it, and 872 was added as an overlay that continues to share the city's ground, so ten-digit dialing covers local calls in the city.
Dialing note: 312 is part of an overlay complex with 872, so local calls in this area are dialed with all ten digits.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 07/16/2026.
312 phone number FAQ
- How do I get a 312 phone number?
- Pick an available 312 number and sign up for AvoCall. Your new Chicago, IL number works for calls and texts on your existing phone over WiFi or data. Current web pricing is verified at checkout. There is no second SIM and no new device.
- Where is the 312 area code?
- It serves Chicago, IL and nearby cities in Illinois, including Chicago, Cicero, Schaumburg.
- Can I receive verification codes on a 312 number?
- AvoCall 312 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.