- City / exchange
- Helena
- Province / state
- Montana
- Country
- United States
- Carrier
- Mcimetro Access Transmission Services LLC
- Line type
- Landline or business line
- OCN
- 7229
- Status
- In Service
- Assigned
- 06/19/2002
- Number pooling
- Yes (block shared between carriers)
406-558 phone numbers
Helena, Montana, United States · Mcimetro Access Transmission Services LLC
Reported numbers in 406-558
No numbers in this block have been reported by visitors yet.
What does the 406-558 prefix tell you?
Every North American number is area code + prefix + line. The prefix 406-558 was assigned to Mcimetro Access Transmission Services LLC on 06/19/2002 for the Helena exchange. A call from this block usually originates from a Mcimetro Access Transmission Services LLC customer in or near Helena, but caller ID can be spoofed to show any number.