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: PITBPADTTMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
412-789 A Pittsburgh Zone 1 PA 078H MOSAIC NETWORX LLC - PA 234      
412-789 1 Pittsburgh Zone 1 PA 078H MOSAIC NETWORX LLC - PA 234   2014-03-27   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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