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: 580 [Rate centres in NPA 580] [Dial plan for NPA 580]

NXX: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-278 A Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536      
580-278 0 Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536   2011-03-14   
580-278 1 Enid OK OKCYOKSX4MD  5562 METROPCS, INC. 536      
580-278 2 Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536   2011-09-18   
580-278 3 Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536   2012-01-06   
580-278 4 Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536      
580-278 5 Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536      
580-278 6 Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536      
580-278 7 Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536   2012-04-14   
580-278 8 Enid OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536   2012-04-14   
580-278 9 Enid OK OKCYOKSX4MD  5562 METROPCS, INC. 536      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.