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: 580

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
505-580 A Gallup NM   6529 T-MOBILE USA, INC. 664   2025-07-25   
505-580 8 Gallup NM   6529 T-MOBILE USA, INC. 664   2025-07-25   
505-580 9 Gallup NM   6529 T-MOBILE USA, INC. 664   2025-07-25   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.