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: LPTPPAMAGT2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
215-217 A Philadelphia Zone 2 PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-02-10   
215-916 A Morrisville PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-02-03   
302-671 A Milford DE 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-01-16   
835-256 A Philadelphia Suburban Zone 30 PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-01-24   
835-257 A Allentown (Lehigh) PA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-02-03   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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