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.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-877 A Pikesville MD 939H COMMIO, LLC 238      
667-877 7 Pikesville MD 939H COMMIO, LLC 238   2022-11-18   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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