Local Calling Guide
Area code/prefix search
Switch: HLNAMTMAX0X
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NPA-NXX | BLOCK | Rate Centre | Region | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|
406-316 | A | Boulder | MT | 7421 AT&T - LOCAL | 648 | |||
406-316 | 9 | Boulder | MT | 7421 AT&T - LOCAL | 648 | |||
406-634 | A | Helena | MT | 7421 AT&T - LOCAL | 648 | |||
406-634 | 9 | Helena | MT | 7421 AT&T - LOCAL | 648 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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