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-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
580-306 A Broken Bow OK   536      
580-420 A Oak Hill OK OKHLOKXADS0  536      
580-494 A Hochatown OK HCTWOKXADS0  536      
580-584 A Broken Bow OK BRKBOKXADS0  536      
580-835 A Eagletown OK EGTNOKXADS0  536      
580-981 A Wright City OK WRCYOKXADS0  536      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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