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: 654

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
478-654 A Byron GA MACNGAMTXOY  318J COMCAST IP PHONE, LLC 446      
478-654 0 Byron GA   073H TELNYX LLC 446   2020-06-13   
478-654 1 Byron GA   067D ONVOY, LLC - GA 446   2020-10-11   
478-654 2 Byron GA   318J COMCAST IP PHONE, LLC 446   2013-05-07   
478-654 3 Byron GA   7435 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 446   2013-12-20   
478-654 4 Byron GA   8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 446   2017-07-20   
478-654 5 Byron GA   318J COMCAST IP PHONE, LLC 446   2017-01-29   
478-654 6 Byron GA   318J COMCAST IP PHONE, LLC 446      
478-654 7 Byron GA   067D ONVOY, LLC - GA 446   2019-03-02   
478-654 8 Byron GA   067D ONVOY, LLC - GA 446   2020-04-06   
478-654 9 Byron GA   067D ONVOY, LLC - GA 446   2020-04-06   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.