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: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-757 A Socorro NM ALBQNM10X3X  516J TON80 COMMUNICATIONS, LLC 664      
575-757 0 Socorro NM   515J IP HORIZON LLC 664   2022-05-26   
575-757 5 Socorro NM ALBQNM10X3X  516J TON80 COMMUNICATIONS, LLC 664   2022-05-05   
575-757 7 Socorro NM ALBQNM10QMD  145J TERRA NOVA TELECOM INC. 664   2024-04-22   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.