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: FTWSPAFWIMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
484-283 1 Kemblesville PA 422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 228   2007-08-23   
484-667 2 West Grove PA 422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 228   2007-08-23   
610-467 A Oxford PA 422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 228      
610-467 0 Oxford PA 422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 228   2007-06-09   
610-467 1 Oxford PA 422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 228   2010-11-05   
610-979 8 Atglen PA 422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 228   2012-07-02   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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