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: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-310 A Ruidoso NM RUDSNMXC5MD  206F ONVOY, LLC - NM 664      
575-310 0 Ruidoso NM RUDSNMXC5MD  206F ONVOY, LLC - NM 664      
575-310 1 Ruidoso NM RUDSNMXC5MD  206F ONVOY, LLC - NM 664      
575-310 3 Ruidoso NM RUDSNMXC5MD  206F ONVOY, LLC - NM 664      
575-310 8 Ruidoso NM   206F ONVOY, LLC - NM 664      
575-310 9 Ruidoso NM ALBRNMFE5MD  6529 T-MOBILE USA, INC. 664      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.