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.

Reading, PA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
835-242 9 PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2024-12-26   
835-261 A PHLAPAFGXBY  490J BOOST SUBSCRIBERCO L.L.C. 228   2025-05-08   
835-261 0 PHLAPAFGXBY  490J BOOST SUBSCRIBERCO L.L.C. 228   2025-05-08   
835-261 2 PHLAPAMK33Z  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-05-09   
835-261 3 PHLAPAMK33Z  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-09-29   
835-261 4 KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2025-06-12   
835-261 5 KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2025-06-12   
835-261 6 KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2025-06-12   
835-261 7 KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2025-06-12   
835-261 8 PHLAPAFGXUX  114J EXIANT COMMUNICATIONS LLC 228   2025-06-22   
835-261 9 KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2026-02-11   
835-287 A PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2026-03-07   
835-287 0 PHLAPAMK20Z  002F BANDWIDTH.COM CLEC, LLC - PA 228   2026-05-03   
835-287 1 PHLAPAFGD2S  547E ONVOY, LLC - PA 228   2026-05-30   
835-287 2 PHLAPAFGXBY  490J BOOST SUBSCRIBERCO L.L.C. 228   2026-06-22   
835-287 4 PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2026-06-14   
835-287 5 PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2026-06-14   
835-287 6 PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2026-06-06   
835-287 7 PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2026-06-06   
835-287 8 PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2026-03-07   
835-287 9 PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2026-03-07   
835-835 A PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228   2025-11-11   
835-835 4 PHLAPASLOMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-12-14   
835-835 5 PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228   2025-11-11   
835-835 6 PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228   2025-11-11   
835-835 7 PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228   2025-11-11   
835-835 8 PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228   2025-11-11   
835-835 9 PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228   2025-11-11   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.