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: 392

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
478-392 A Reynolds GA MACNGAMT1MD  6116 LEVEL 3 COMMUNICATIONS, LLC - GA 446   2024-01-23   
478-392 7 Reynolds GA MACNGAMT1MD  6116 LEVEL 3 COMMUNICATIONS, LLC - GA 446   2024-01-23   

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

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