Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 478 [Rate centres in NPA 478] [Dial plan for NPA 478]

NXX: 429

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
478-429 A Byromville GA MACNGA01CM2  6744 SOUTHERN COMMUNICATIONS SERVICES, INC. 446      
478-429 1 Byromville GA MACNGA01CM2  6744 SOUTHERN COMMUNICATIONS SERVICES, INC. 446      
478-429 2 Byromville GA MACNGAMT3MD  067D ONVOY, LLC - GA 446   2021-07-05   
478-429 3 Byromville GA MACNGAMT3MD  067D ONVOY, LLC - GA 446   2021-07-05   
478-429 4 Byromville GA MACNGAMT3MD  067D ONVOY, LLC - GA 446   2019-03-02   
478-429 5 Byromville GA MACNGAMT3MD  067D ONVOY, LLC - GA 446   2021-01-17   
478-429 6 Byromville GA MACNGAMT3MD  067D ONVOY, LLC - GA 446   2021-01-17   
478-429 7 Byromville GA MACNGAMT3MD  067D ONVOY, LLC - GA 446   2021-01-17   
478-429 8 Byromville GA MACNGAMT3MD  067D ONVOY, LLC - GA 446   2021-03-28   

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.