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: 223

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
505-223 A Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 0 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 1 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 2 Albuquerque NM ALBQNMMAXLX  5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664      
505-223 3 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 4 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 5 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 6 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 7 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 8 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      
505-223 9 Albuquerque NM TJRSNMMADS0  9636 QWEST CORPORATION 664      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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