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: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
478-423 A Macon GA   700J WAVENATION, LLC 446   2025-09-15   
478-423 0 Macon GA   700J WAVENATION, LLC 446   2025-09-15   
478-423 4 Macon GA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 446   2026-01-22   
478-423 5 Macon GA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 446   2026-01-22   
478-423 6 Macon GA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 446   2026-01-22   
478-423 7 Macon GA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 446   2026-01-22   
478-423 8 Macon GA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 446   2026-01-22   
478-423 9 Macon GA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 446   2026-01-22   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.