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: ATLNGAEPXKY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
470-480 A Atlanta GA 321J HD CARRIER LLC 438      
470-480 9 Atlanta GA 321J HD CARRIER LLC 438   2019-03-10   
470-531 6 Atlanta Northwest GA 321J HD CARRIER LLC 438   2020-04-24   
470-596 A Atlanta Northwest GA 321J HD CARRIER LLC 438      
470-596 9 Atlanta Northwest GA 321J HD CARRIER LLC 438   2020-05-18   
470-661 3 Atlanta South GA 321J HD CARRIER LLC 438   2020-04-24   
470-670 8 Atlanta GA 321J HD CARRIER LLC 438   2020-05-22   
470-938 9 Atlanta Northwest GA 321J HD CARRIER LLC 438   2020-04-24   
770-657 9 Atlanta Northwest GA 321J HD CARRIER LLC 438   2026-06-01   
943-251 5 Griffin GA 321J HD CARRIER LLC 438   2025-09-14   
943-251 6 Griffin GA 321J HD CARRIER LLC 438   2025-09-14   
943-272 6 Covington GA 321J HD CARRIER LLC 438   2025-09-14   
943-272 7 Covington GA 321J HD CARRIER LLC 438   2025-09-14   
943-280 4 Atlanta South GA 321J HD CARRIER LLC 438   2025-09-14   
943-280 5 Atlanta South GA 321J HD CARRIER LLC 438   2025-09-14   
943-284 4 Newnan GA 321J HD CARRIER LLC 438   2025-09-14   
943-284 5 Newnan GA 321J HD CARRIER LLC 438   2025-09-14   
943-286 7 Atlanta Northeast GA 321J HD CARRIER LLC 438   2025-10-06   
943-286 8 Atlanta Northeast GA 321J HD CARRIER LLC 438   2025-10-06   
943-306 2 Atlanta Northwest GA 321J HD CARRIER LLC 438   2026-06-01   
943-306 3 Atlanta Northwest GA 321J HD CARRIER LLC 438   2026-06-01   
943-313 3 Gainesville GA 321J HD CARRIER LLC 438   2026-06-15   
943-313 4 Gainesville GA 321J HD CARRIER LLC 438   2026-06-15   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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