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: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-640 A Sparta NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424      
336-640 0 Sparta NC   073H TELNYX LLC 424   2022-09-09   
336-640 1 Sparta NC   3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424   2019-01-12   
336-640 2 Sparta NC   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 424   2020-09-07   
336-640 3 Sparta NC   6324 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 424   2026-01-26   
336-640 6 Sparta NC   8389 TELEPORT COMMUNICATIONS AMERICA, LLC - NC 424   2020-11-16   

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

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