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.

OCN: 460K FIRST COMMUNICATIONS, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
937-668 A Dayton OH DYTNOHKTLMD  328      
937-668 0 Dayton OH DYTNOHKTLMD  328   2008-02-10   
937-702 1 Beavercreek OH DYTNOHKTLMD  328   2012-08-26   
947-269 A Rochester MI SFLDMIMKNMD  340      
947-269 0 Rochester MI SFLDMIMKNMD  340   2023-12-08   

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Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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