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.

NPA: 575 [Rate centres in NPA 575] [Dial plan for NPA 575]

NXX: 586

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-586 A Questa NM QUSTNMMARS1  9636 QWEST CORPORATION 664      
575-586 0 Questa NM QUSTNMMARS1  9636 QWEST CORPORATION 664      
575-586 1 Questa NM QUSTNMMARS1  9636 QWEST CORPORATION 664      
575-586 2 Questa NM QUSTNMMARS1  9636 QWEST CORPORATION 664      
575-586 3 Questa NM ALBQNMMAX4Y  206F ONVOY, LLC - NM 664   2013-12-22   
575-586 4 Questa NM ALBQNMMAXLX  5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2006-11-01   
575-586 5 Questa NM ALBQNMMAX2Y  123F BANDWIDTH.COM CLEC, LLC - NM 664   2012-01-27   
575-586 6 Questa NM ALBQNMMAX4Y  206F ONVOY, LLC - NM 664   2011-10-30   
575-586 7 Questa NM QUSTNMMARS1  9636 QWEST CORPORATION 664      
575-586 8 Questa NM ALBQNMMAX4Y  206F ONVOY, LLC - NM 664   2007-05-04   
575-586 9 Questa NM QUSTNMMARS1  9636 QWEST CORPORATION 664      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.