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: HNVIAL96X1X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
256-501 4 Athens AL 145J TERRA NOVA TELECOM INC. 477   2026-07-20   
256-686 8 Decatur AL 145J TERRA NOVA TELECOM INC. 477   2026-04-30   
256-784 3 Falkville AL 145J TERRA NOVA TELECOM INC. 477   2026-03-28   
938-900 A Huntsville AL 145J TERRA NOVA TELECOM INC. 477      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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