Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 478 [Rate centres in NPA 478] [Dial plan for NPA 478]

NXX: 393

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
478-393 A Chester GA MACNGAMT1MD  6116 LEVEL 3 COMMUNICATIONS, LLC - GA 446   2024-01-23   
478-393 3 Chester GA   145J TERRA NOVA TELECOM INC. 446   2025-05-23   
478-393 7 Chester GA MACNGAMT1MD  6116 LEVEL 3 COMMUNICATIONS, LLC - GA 446   2024-01-23   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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