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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Switch: IJVLMD01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-215 A Frederick MD 4749 TELCOVE OPERATIONS, INC. - MD 240      
240-436 A Buckeystown MD 4749 TELCOVE OPERATIONS, INC. - MD 240      

Last updated: Sat, 09 Mar 2019 02:16:03 UTC

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