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: RLGHNCHD4MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
984-401 7 Wake Forest NC 939H COMMIO, LLC 426   2021-06-11   
984-529 4 Knightdale NC 939H COMMIO, LLC 426   2022-11-20   
984-584 6 Apex NC 939H COMMIO, LLC 426   2022-11-20   
984-684 2 Cary (Research Triangle Park) NC 939H COMMIO, LLC 426   2022-11-27   
984-788 1 Wendell NC 939H COMMIO, LLC 426   2022-11-27   
984-866 0 Selma NC 939H COMMIO, LLC 426   2022-11-27   
984-867 A Raleigh NC 939H COMMIO, LLC 426      
984-867 5 Raleigh NC 939H COMMIO, LLC 426   2017-08-17   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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