Local Calling Guide
Area code/prefix search
NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]
NXX: 507
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
406-507 | A | Whitefish | MT | MSSLMTMA0MD | 9415 LEVEL 3 COMMUNICATIONS, LLC - MT | 648 | |||
406-507 | 0 | Whitefish | MT | GRFLMTMA7MD | 453F ONVOY, LLC - MT | 648 | 2024-04-14 | ||
406-507 | 1 | Whitefish | MT | MSSLMTMA0MD | 9415 LEVEL 3 COMMUNICATIONS, LLC - MT | 648 | 2023-04-21 |
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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