Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 505 [Rate centres in NPA 505] [Dial plan for NPA 505]

NXX: 447

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
505-447 A Grants NM ALBRNMFE5MD  6529 T-MOBILE USA, INC. 664      
505-447 0 Grants NM   073H TELNYX LLC 664   2021-03-21   
505-447 1 Grants NM   206F ONVOY, LLC - NM 664   2021-08-27   
505-447 2 Grants NM   206F ONVOY, LLC - NM 664   2021-02-16   
505-447 3 Grants NM   206F ONVOY, LLC - NM 664   2021-02-16   
505-447 4 Grants NM   6010 NEW CINGULAR WIRELESS PCS, LLC 664   2025-10-04   
505-447 5 Grants NM   206F ONVOY, LLC - NM 664   2021-08-27   
505-447 6 Grants NM   206F ONVOY, LLC - NM 664   2021-08-27   
505-447 7 Grants NM   206F ONVOY, LLC - NM 664   2021-08-27   
505-447 8 Grants NM   377H PEERLESS NETWORK OF NEW MEXICO, LLC - NM 664   2021-07-18   
505-447 9 Grants NM   6529 T-MOBILE USA, INC. 664   2021-02-14   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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