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: 537

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-537 A Southmont NC LXTNNCXAJMD  793K TWC IP ENABLED SERVICES, LLC 424   2025-02-05   
336-537 0 Southmont NC   793K TWC IP ENABLED SERVICES, LLC 424   2013-05-21   
336-537 1 Southmont NC   638E ONVOY, LLC - NC 424   2022-07-31   
336-537 2 Southmont NC   638E ONVOY, LLC - NC 424   2020-12-27   
336-537 3 Southmont NC   638E ONVOY, LLC - NC 424   2020-12-27   
336-537 4 Southmont NC   793K TWC IP ENABLED SERVICES, LLC 424   2009-06-11   
336-537 5 Southmont NC   638E ONVOY, LLC - NC 424   2019-06-25   
336-537 7 Southmont NC   508J CENTURYLINK COMMUNICATIONS, LLC 424   2015-06-11   
336-537 8 Southmont NC   638E ONVOY, LLC - NC 424   2021-03-28   
336-537 9 Southmont NC   638E ONVOY, LLC - NC 424   2021-03-28   

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

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