Local Calling Guide
Area code/prefix search
NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]
NXX: 221
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
406-221 | A | Butte | MT | HLNAMTMAKMD | 7421 AT&T - LOCAL | 648 | |||
406-221 | 0 | Butte | MT | 073H TELNYX LLC | 648 | ||||
406-221 | 1 | Butte | MT | GRFLMTMA7MD | 453F ONVOY, LLC - MT | 648 | |||
406-221 | 2 | Butte | MT | GRFLMTMA7MD | 453F ONVOY, LLC - MT | 648 | |||
406-221 | 3 | Butte | MT | HLNAMTMAMMD | 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 648 | |||
406-221 | 4 | Butte | MT | GRFLMTMA7MD | 453F ONVOY, LLC - MT | 648 | |||
406-221 | 5 | Butte | MT | GRFLMTMA7MD | 453F ONVOY, LLC - MT | 648 | |||
406-221 | 6 | Butte | MT | MSSLMTAG5MD | 6010 NEW CINGULAR WIRELESS PCS, LLC | 648 | |||
406-221 | 7 | Butte | MT | 792K CHARTER IP ENABLED SERVICES, LLC | 648 | ||||
406-221 | 8 | Butte | MT | GRFLMTMAHMD | 073H TELNYX LLC | 648 | |||
406-221 | 9 | Butte | MT | HLNAMTMAKMD | 7421 AT&T - LOCAL | 648 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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