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: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
505-663 A Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      
505-663 0 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      
505-663 1 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      
505-663 2 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      
505-663 3 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      
505-663 4 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      
505-663 5 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      
505-663 6 Los Alamos NM ALBQNMMAX2Y  123F BANDWIDTH.COM CLEC, LLC - NM 664   2015-05-10   
505-663 7 Los Alamos NM ALBQNMXMDS0  7464 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM 664   2003-05-07   
505-663 8 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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