Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 336 [Rate centres in NPA 336] [Dial plan for NPA 336]

NXX: 820

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-820 A Zephyr NC ELKNNCXAX6X  793K TWC IP ENABLED SERVICES, LLC 424   2025-02-05   
336-820 0 Zephyr NC   145J TERRA NOVA TELECOM INC. 424   2025-07-11   
336-820 4 Zephyr NC ELKNNCXAX6X  793K TWC IP ENABLED SERVICES, LLC 424   2009-02-11   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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