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: HNVIAL96X3X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
256-271 1 Rogersville AL 321J HD CARRIER LLC 477   2025-10-30   
256-628 3 Scottsboro AL 321J HD CARRIER LLC 477   2025-10-30   
256-696 A Huntsville AL 321J HD CARRIER LLC 477      
256-696 9 Huntsville AL 321J HD CARRIER LLC 477   2020-04-02   
938-274 4 Cullman AL 321J HD CARRIER LLC 477   2025-10-30   
938-277 3 Decatur AL 321J HD CARRIER LLC 477   2025-10-30   
938-278 1 Huntsville AL 321J HD CARRIER LLC 477   2025-07-19   
938-278 2 Huntsville AL 321J HD CARRIER LLC 477   2025-07-19   
938-278 3 Huntsville AL 321J HD CARRIER LLC 477   2025-07-19   
938-988 2 Huntsville AL 321J HD CARRIER LLC 477   2026-07-18   
938-988 3 Huntsville AL 321J HD CARRIER LLC 477   2026-07-18   
938-988 4 Huntsville AL 321J HD CARRIER LLC 477   2026-07-18   

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

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