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.

Switch: ATLNGAMQX8X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
256-906 7 Ranburne AL 478J NUSO, LLC 438   2020-09-28   
404-896 8 Atlanta GA 478J NUSO, LLC 438   2023-12-01   
470-607 A Atlanta GA 478J NUSO, LLC 438      
470-607 1 Atlanta GA 478J NUSO, LLC 438   2020-07-31   
762-739 A Blue Ridge GA 478J NUSO, LLC 438      
762-739 0 Blue Ridge GA 478J NUSO, LLC 438   2020-10-23   
943-252 4 Atlanta GA 478J NUSO, LLC 438   2024-06-09   
943-252 5 Atlanta GA 478J NUSO, LLC 438   2024-06-09   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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