- City / exchange
- Itasca
- Province / state
- Illinois
- Country
- United States
- Carrier
- Onvoy, LLC
- Line type
- Likely VoIP / virtual number
- OCN
- 224C
- Status
- In Service
- Assigned
- 11/05/2025
- Number pooling
- Yes (block shared between carriers)
331-340 phone numbers
Itasca, Illinois, United States · Onvoy, LLC
Reported numbers in 331-340
No numbers in this block have been reported by visitors yet.
What does the 331-340 prefix tell you?
Every North American number is area code + prefix + line. The prefix 331-340 was assigned to Onvoy, LLC on 11/05/2025 for the Itasca exchange. A call from this block usually originates from a Onvoy, LLC customer in or near Itasca, but caller ID can be spoofed to show any number.