- City / exchange
- Sulivngdns
- Province / state
- Tennessee
- Country
- United States
- Carrier
- Bandwidth.com Clec, LLC - Tn
- Line type
- Likely VoIP / virtual number
- OCN
- 124F
- Status
- In Service
- Assigned
- 02/10/2026
- Number pooling
- Yes (block shared between carriers)
423-399 phone numbers
Sulivngdns, Tennessee, United States · Bandwidth.com Clec, LLC - Tn
Reported numbers in 423-399
No numbers in this block have been reported by visitors yet.
What does the 423-399 prefix tell you?
Every North American number is area code + prefix + line. The prefix 423-399 was assigned to Bandwidth.com Clec, LLC - Tn on 02/10/2026 for the Sulivngdns exchange. A call from this block usually originates from a Bandwidth.com Clec, LLC - Tn customer in or near Sulivngdns, but caller ID can be spoofed to show any number.