Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Elk City, OK

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-821 6 OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-821 7 OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536   2009-11-30   
580-821 8 EKCYOKMARS1  9533 SOUTHWESTERN BELL 536      
580-821 9 OKCYOKCEXMZ  145J TERRA NOVA TELECOM INC. 536   2023-11-15   

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Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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