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: FRDRMDFRPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-212 A Oakland MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
240-225 A Frederick MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
240-231 A Hagerstown MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
240-251 A Highfield MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
240-275 A Grantsville MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
240-287 A Hancock MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
240-322 A McCoole MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
240-323 A Emmitsburg MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
240-378 A Cumberland MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
301-750 A Friendsville MD 2593 CORE COMMUNICATIONS, INC. - MD 240   2004-05-09   
301-799 A Keedysville MD 2593 CORE COMMUNICATIONS, INC. - MD 240   2004-05-09   
301-857 A Clear Spring MD 2593 CORE COMMUNICATIONS, INC. - MD 240      
301-882 A New Market MD 2593 CORE COMMUNICATIONS, INC. - MD 240   2004-05-09   
304-821 A Inwood WV 5833 CORETEL VIRGINIA, LLC - WV 240      

Last updated: Fri, 17 May 2019 00:49:52 UTC

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