- City / exchange
- Naperville
- Province / state
- Illinois
- Country
- United States
- Carrier
- Level 3 Communications, LLC - Il
- Line type
- Likely VoIP / virtual number
- OCN
- 6115
- Status
- In Service
- Assigned
- 12/14/2015
- Number pooling
- Yes (block shared between carriers)
331-401 phone numbers
Naperville, Illinois, United States · Level 3 Communications, LLC - Il
Reported numbers in 331-401
No numbers in this block have been reported by visitors yet.
What does the 331-401 prefix tell you?
Every North American number is area code + prefix + line. The prefix 331-401 was assigned to Level 3 Communications, LLC - Il on 12/14/2015 for the Naperville exchange. A call from this block usually originates from a Level 3 Communications, LLC - Il customer in or near Naperville, but caller ID can be spoofed to show any number.