Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 575 [Rate centres in NPA 575] [Dial plan for NPA 575]

NXX: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-284 A Silver City NM ALBRNMFE5MD  6529 T-MOBILE USA, INC. 664      
575-284 0 Silver City NM   515J IP HORIZON LLC 664   2022-05-26   
575-284 1 Silver City NM   073H TELNYX LLC 664   2022-12-19   
575-284 2 Silver City NM   206F ONVOY, LLC - NM 664   2023-01-07   
575-284 3 Silver City NM   6529 T-MOBILE USA, INC. 664   2024-04-05   
575-284 4 Silver City NM   6529 T-MOBILE USA, INC. 664   2022-08-17   
575-284 5 Silver City NM   6529 T-MOBILE USA, INC. 664   2022-08-17   
575-284 6 Silver City NM   6529 T-MOBILE USA, INC. 664   2022-02-21   
575-284 7 Silver City NM   123F BANDWIDTH.COM CLEC, LLC - NM 664   2022-01-06   
575-284 8 Silver City NM   123F BANDWIDTH.COM CLEC, LLC - NM 664   2021-12-11   
575-284 9 Silver City NM   6529 T-MOBILE USA, INC. 664   2021-10-31   

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

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