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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
575-635 4 Las Cruces NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2002-06-28   
575-636 1 Las Cruces NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2012-06-23   
575-636 2 Las Cruces NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2004-12-30   
575-651 3 Ruidoso Downs NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2019-11-17   
575-659 7 Lovington NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2017-10-26   
575-680 1 Las Cruces NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2006-10-26   
575-680 2 Las Cruces NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2006-10-26   
575-725 2 Carlsbad NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2016-10-14   
575-735 3 Cimarron NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2023-02-18   
575-781 2 Santa Rosa NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2021-05-12   
575-812 8 Alamogordo NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2008-10-24   
575-824 7 Chaparral NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2004-11-14   
575-888 3 Las Cruces NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2015-08-24   
575-915 1 Las Cruces NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2008-06-06   
575-936 5 Deming NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2008-06-11   
575-945 2 Logan NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2021-05-12   
575-952 1 Truth or Consequences NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2018-06-17   
575-956 9 Silver City NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2002-07-15   
575-988 7 Carlsbad NM 5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2019-03-23   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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