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: 505 [Rate centres in NPA 505] [Dial plan for NPA 505]

NXX: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
505-200 A Albuquerque NM ALBQNMMAXUY  318J COMCAST IP PHONE, LLC 664      
505-200 0 Albuquerque NM   318J COMCAST IP PHONE, LLC 664   2011-11-04   
505-200 1 Albuquerque NM   6010 NEW CINGULAR WIRELESS PCS, LLC 664   2011-11-29   
505-200 2 Albuquerque NM   318J COMCAST IP PHONE, LLC 664   2012-01-05   
505-200 3 Albuquerque NM   7464 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM 664   2011-11-16   
505-200 4 Albuquerque NM   7457 LEVEL 3 TELECOM OF NEW MEXICO, LLC - NM 664   2011-12-17   
505-200 5 Albuquerque NM   7457 LEVEL 3 TELECOM OF NEW MEXICO, LLC - NM 664   2011-12-17   
505-200 6 Albuquerque NM   7457 LEVEL 3 TELECOM OF NEW MEXICO, LLC - NM 664   2011-12-17   
505-200 7 Albuquerque NM   7457 LEVEL 3 TELECOM OF NEW MEXICO, LLC - NM 664   2011-12-17   
505-200 8 Albuquerque NM   7457 LEVEL 3 TELECOM OF NEW MEXICO, LLC - NM 664   2011-12-17   
505-200 9 Albuquerque NM   318J COMCAST IP PHONE, LLC 664   2012-01-05   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.