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.

OCN: 1988 DOBSON TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
580-328 A Taloga OK CHYNOKXADS0  536      
580-488 A Leedey OK CHYNOKXADS0  536      
580-497 A Cheyenne OK CHYNOKXADS0  536      
580-497 0 Cheyenne OK CHYNOKXADS0  536      
580-497 1 Cheyenne OK CHYNOKXADS0  536      
580-497 2 Cheyenne OK CHYNOKXADS0  536      
580-497 3 Cheyenne OK CHYNOKXADS0  536      
580-497 4 Cheyenne OK CHYNOKXADS0  536      
580-497 5 Cheyenne OK CHYNOKXADS0  536      
580-497 8 Cheyenne OK CHYNOKXADS0  536      
580-497 9 Cheyenne OK CHYNOKXADS0  536      
580-526 A Erick OK CHYNOKXADS0  536      
580-534 A Sweetwater OK CHYNOKXADS0  536      
580-655 A Reydon OK CHYNOKXADS0  536      
580-926 A Camargo OK CHYNOKXADS0  536      
580-983 A Roger Mills OK CHYNOKXADS0  536      
580-983 0 Roger Mills OK CHYNOKXADS0  536      
580-983 1 Roger Mills OK CHYNOKXADS0  536      
580-983 2 Roger Mills OK CHYNOKXADS0  536      
580-983 3 Roger Mills OK CHYNOKXADS0  536      
580-983 4 Roger Mills OK CHYNOKXADS0  536      
580-983 7 Roger Mills OK CHYNOKXADS0  536      
580-983 8 Roger Mills OK CHYNOKXADS0  536      
580-983 9 Roger Mills OK CHYNOKXADS0  536      
580-995 A Vici OK CHYNOKXADS0  536      
806-565 A West Reydon TX CHYNOKXADS0  536      
806-754 A Sweetwater West TX CHYNOKXADS0  536      
806-988 A West Roger Mills TX CHYNOKXADS0  536      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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