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: PHLAPAMKXCX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
835-203 9 Bally PA 318J COMCAST IP PHONE, LLC 228   2022-11-11   
835-206 1 Atglen PA 318J COMCAST IP PHONE, LLC 228   2023-06-26   
835-227 4 Easton PA 318J COMCAST IP PHONE, LLC 228   2025-07-05   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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