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: PHLAPAFGXBY

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
835-212 5 Philadelphia Suburban Zone 13 PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2024-11-21   
835-212 6 Philadelphia Suburban Zone 13 PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2025-01-27   
835-212 7 Philadelphia Suburban Zone 13 PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2025-03-24   
835-212 8 Philadelphia Suburban Zone 13 PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2025-04-11   
835-216 A Avondale (Chester) PA 490J BOOST SUBSCRIBERCO L.L.C. 228      
835-216 0 Avondale (Chester) PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2023-06-11   
835-217 A Parkesburg PA 490J BOOST SUBSCRIBERCO L.L.C. 228      
835-217 0 Parkesburg PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2023-06-11   
835-247 3 Allentown (Lehigh) PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2024-09-30   
835-247 7 Allentown (Lehigh) PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2025-02-25   
835-261 A Reading PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2025-05-08   
835-261 0 Reading PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2025-05-08   
835-274 4 Allentown (Lehigh) PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2025-12-18   
835-287 2 Reading PA 490J BOOST SUBSCRIBERCO L.L.C. 228   2026-06-22   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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