Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 505 [Rate centres in NPA 505] [Dial plan for NPA 505]

NXX: 606

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
505-606 A Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664      
505-606 0 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 1 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 2 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 3 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 4 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 5 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 6 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 7 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 8 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   
505-606 9 Los Alamos NM LSALNMMADS0  9636 QWEST CORPORATION 664   2003-09-28   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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