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

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
570-512 9 Troy PA 547E ONVOY, LLC - PA 232   2020-10-26   
570-572 0 Dallas PA 547E ONVOY, LLC - PA 232   2024-05-03   
570-572 1 Dallas PA 547E ONVOY, LLC - PA 232   2024-07-06   
570-572 8 Dallas PA 547E ONVOY, LLC - PA 232   2024-04-04   
570-605 A Mansfield PA 547E ONVOY, LLC - PA 232   2025-01-30   
570-605 2 Mansfield PA 547E ONVOY, LLC - PA 232   2020-10-25   
570-605 4 Mansfield PA 547E ONVOY, LLC - PA 232   2019-12-18   
570-605 5 Mansfield PA 547E ONVOY, LLC - PA 232   2021-04-19   
570-707 A Tioga PA 547E ONVOY, LLC - PA 232      
570-707 5 Tioga PA 547E ONVOY, LLC - PA 232   2021-04-04   
570-707 6 Tioga PA 547E ONVOY, LLC - PA 232   2021-04-04   
570-707 7 Tioga PA 547E ONVOY, LLC - PA 232   2019-12-18   
570-720 8 Ulster PA 547E ONVOY, LLC - PA 232   2023-10-12   

<< 1 2

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.