Local Calling Guide
Area code/prefix search
NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]
NXX: 520
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
406-520 | A | Absarokee | MT | BLNGMT93BMD | 321J HD CARRIER LLC | 650 | |||
406-520 | 0 | Absarokee | MT | 145J TERRA NOVA TELECOM INC. | 650 | 2025-08-29 | |||
406-520 | 5 | Absarokee | MT | BLNGMT93BMD | 321J HD CARRIER LLC | 650 | 2020-09-27 | ||
406-520 | 6 | Absarokee | MT | BLNGMT93BMD | 321J HD CARRIER LLC | 650 | 2020-11-01 |
Last updated: Mon, 15 Sep 2025 02:24:40 UTC
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