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.
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Vici, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-940 A OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 0 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 1 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 2 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 3 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 4 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 5 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 6 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 7 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-940 8 OKCYOKMTBMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-995 A CHYNOKXADS0  1988 DOBSON TEL. CO. 536      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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