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: PHLAPAMK20Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
835-201 A Bethlehem PA 002F BANDWIDTH.COM CLEC, LLC - PA 228      
835-201 0 Bethlehem PA 002F BANDWIDTH.COM CLEC, LLC - PA 228   2022-11-14   
835-997 5 Allentown (Lehigh) PA 002F BANDWIDTH.COM CLEC, LLC - PA 228   2025-01-13   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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