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.

Switch: ALMGNMWERS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
575-475 A Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 A Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 0 Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 1 Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 2 Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 3 Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 4 Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 6 Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 8 Alamogordo NM 9636 QWEST CORPORATION 664      
575-479 9 Alamogordo NM 9636 QWEST CORPORATION 664      
575-921 A Alamogordo NM 9636 QWEST CORPORATION 664      
575-921 0 Alamogordo NM 9636 QWEST CORPORATION 664      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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