Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-691 A OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536      
580-691 2   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2018-03-01   
580-965 A CRTWOKXARS1  1979 CHEROKEE TEL. CO. 536      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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