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: 921

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-921 A Alamogordo NM ALMGNMWERS1  9636 QWEST CORPORATION 664      
575-921 0 Alamogordo NM ALMGNMWERS1  9636 QWEST CORPORATION 664      
575-921 1 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2003-04-05   
575-921 2 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2003-04-05   
575-921 3 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2003-04-05   
575-921 4 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2003-04-05   
575-921 5 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2005-08-08   
575-921 6 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2006-02-10   
575-921 7 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2006-05-21   
575-921 8 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2006-06-26   
575-921 9 Alamogordo NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664   2006-09-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.