Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Alva, OK

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-748 8 OKCYOKCEXXY  516C AT&T CORP. 536   2011-02-05   
580-748 9 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2015-12-05   

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

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