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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: BRNLNMMADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
505-337 A Albuquerque NM 9636 QWEST CORPORATION 664      
505-337 2 Albuquerque NM 9636 QWEST CORPORATION 664   2015-12-09   
505-404 5 Albuquerque NM 9636 QWEST CORPORATION 664   2005-07-05   
505-771 A Albuquerque NM 9636 QWEST CORPORATION 664      
505-867 A Albuquerque NM 9636 QWEST CORPORATION 664      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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