- City / exchange
- W Chicago
- Province / state
- Illinois
- Country
- United States
- Carrier
- Onvoy, LLC
- Line type
- Likely VoIP / virtual number
- OCN
- 224C
- Status
- In Service
- Assigned
- 02/02/2026
- Number pooling
- Yes (block shared between carriers)
331-344 phone numbers
W Chicago, Illinois, United States · Onvoy, LLC
Reported numbers in 331-344
No numbers in this block have been reported by visitors yet.
What does the 331-344 prefix tell you?
Every North American number is area code + prefix + line. The prefix 331-344 was assigned to Onvoy, LLC on 02/02/2026 for the W Chicago exchange. A call from this block usually originates from a Onvoy, LLC customer in or near W Chicago, but caller ID can be spoofed to show any number.