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: 325 [Rate centres in NPA 325] [Dial plan for NPA 325]

NXX: 301

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
325-301 A San Angelo TX SANGTXXAXBX  551G NUSO, LLC 961      
325-301 0 San Angelo TX SANGTXXA0MD  6529 T-MOBILE USA, INC. 961   2015-07-22   
325-301 1 San Angelo TX SANGTXXAXBX  551G NUSO, LLC 961   2013-05-02   
325-301 2 San Angelo TX SANGTXXAYMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 961   2015-10-22   
325-301 3 San Angelo TX SANGTXXA0MD  5562 METROPCS, INC. 961   2016-05-02   
325-301 7 San Angelo TX SANGTXXA0MD  6529 T-MOBILE USA, INC. 961   2016-10-09   
325-301 8 San Angelo TX SANGTXXA0MD  6529 T-MOBILE USA, INC. 961   2016-10-09   
325-301 9 San Angelo TX SANGTXXAYMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 961   2016-06-09   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.