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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Valliant, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-433 A HUGOOKAL0MD  387E CROSS-VALLIANT CELLULAR PARTNERSHIP 536      
580-933 A VLNTOKXADSA  2032 VALLIANT TEL. CO. 536      
580-933 0   2032 VALLIANT TEL. CO. 536      
580-933 1   2032 VALLIANT TEL. CO. 536      
580-933 2   387E CROSS-VALLIANT CELLULAR PARTNERSHIP 536      
580-933 3   387E CROSS-VALLIANT CELLULAR PARTNERSHIP 536      
580-933 4   2032 VALLIANT TEL. CO. 536      
580-933 5   2032 VALLIANT TEL. CO. 536      
580-933 6   2032 VALLIANT TEL. CO. 536      
580-933 7   2032 VALLIANT TEL. CO. 536      
580-933 8   2032 VALLIANT TEL. CO. 536      
580-933 9   2032 VALLIANT TEL. CO. 536      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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