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: DLLSPAXDGMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
272-349 A Montrose PA 547E ONVOY, LLC - PA 232      
272-391 A Clarks Summit PA 547E ONVOY, LLC - PA 232   2024-02-17   
272-732 A Sweet Valley PA 547E ONVOY, LLC - PA 232      
570-512 A Troy PA 547E ONVOY, LLC - PA 232      
570-605 A Mansfield PA 547E ONVOY, LLC - PA 232   2025-01-30   
570-707 A Tioga PA 547E ONVOY, LLC - PA 232      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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