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.

NPA: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 870

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-870 A Philadelphia Suburban Zone 14 PA PHLAPAFGXDY  7757 ATX TELECOMMUNICATIONS SERVICES, LTD. - PA 228      
610-870 0 Philadelphia Suburban Zone 14 PA PHLAPAFGXDY  7757 ATX TELECOMMUNICATIONS SERVICES, LTD. - PA 228      
610-870 1 Philadelphia Suburban Zone 14 PA   547E ONVOY, LLC - PA 228   2004-11-05   
610-870 2 Philadelphia Suburban Zone 14 PA PHLAPAFGXDY  7757 ATX TELECOMMUNICATIONS SERVICES, LTD. - PA 228      
610-870 3 Philadelphia Suburban Zone 14 PA   547E ONVOY, LLC - PA 228   2004-11-05   
610-870 4 Philadelphia Suburban Zone 14 PA   547E ONVOY, LLC - PA 228   2004-11-05   
610-870 5 Philadelphia Suburban Zone 14 PA PHLAPAFGXDY  7757 ATX TELECOMMUNICATIONS SERVICES, LTD. - PA 228      
610-870 6 Philadelphia Suburban Zone 14 PA FTWSPAFWX2X  7309 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 228   2021-08-23   
610-870 7 Philadelphia Suburban Zone 14 PA   547E ONVOY, LLC - PA 228   2004-11-05   
610-870 8 Philadelphia Suburban Zone 14 PA   547E ONVOY, LLC - PA 228   2004-11-05   
610-870 9 Philadelphia Suburban Zone 14 PA   547E ONVOY, LLC - PA 228   2004-11-05   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.