Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
405-581 A OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536      
405-581 2   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2016-10-23   
405-997 A ERBOOKXADS1  2020 POTTAWATOMIE TEL. CO. 536      

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

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