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
580-283 A Achille OK ACHLOKXARS1  536      
580-285 A Yuba OK YUBAOKXARS1  536      
580-295 A Bokchito OK BKCHOKXARS1  536      
580-296 A Colbert OK CLBROKXADS0  536      
580-434 A Calera OK CALROKXADS1  536      
580-838 A Kemp OK KEMPOKXARS1  536      
580-965 A Cartwright OK CRTWOKXARS1  536      
580-986 A Atwood OK ATWDOKXADS0  536      
918-389 A Arpelar OK APLROKXADS0  538      
918-546 A Stuart OK STRTOKXADS0  538      

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

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