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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Switch: PRAGOKXARP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
405-567 A Prague OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 536      
405-567 0 Prague OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 536      
405-567 1 Prague OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 536      
405-567 2 Prague OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 536      
405-567 3 Prague OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 536      
405-567 4 Prague OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 536      
405-567 6 Prague OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 536      
405-567 8 Prague OK 1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 536      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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