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: 603

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-603 A Enid OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-603 0 Enid OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-603 1 Enid OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-603 2 Enid OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-603 3 Enid OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-603 4 Enid OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-603 5 Enid OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536   2010-01-08   
580-603 6 Enid OK OKCYOKCEXCZ  939H COMMIO, LLC 536   2022-08-11   
580-603 8 Enid OK OKCYOKCEXBZ  073H TELNYX LLC 536   2017-03-21   
580-603 9 Enid OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      

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

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