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.

Philadelphia Suburban Zone 14, PA

<< 1 2 3 4 5

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
610-870 8   547E ONVOY, LLC - PA 228   2004-11-05   
610-870 9   547E ONVOY, LLC - PA 228   2004-11-05   
610-915 A ALTWPAAEDS0  7341 XO COMMUNICATIONS SERVICES, INC. - PA 228      
610-915 0   7341 XO COMMUNICATIONS SERVICES, INC. - PA 228      
610-915 1   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-10-26   
610-915 2   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 228   2013-11-11   
610-915 3   318J COMCAST IP PHONE LLC 228   2013-08-01   
610-915 4   318J COMCAST IP PHONE LLC 228   2018-06-22   
610-915 5   7341 XO COMMUNICATIONS SERVICES, INC. - PA 228      
610-915 6   5494 NETCARRIER TELECOM, INC. - PA 228   2002-11-25   
610-915 7   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-10-26   
610-915 8   002F BANDWIDTH.COM CLEC, LLC - PA 228   2010-06-24   
610-915 9   7341 XO COMMUNICATIONS SERVICES, INC. - PA 228      
610-957 A PHLAPAFGD0S  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228      
610-957 0   551G NUSO, LLC 228   2016-09-23   
610-957 1   551G NUSO, LLC 228   2016-09-23   
610-957 2   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-10-26   
610-957 3   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-10-26   
610-957 4   624H ONVOY SPECTRUM, LLC 228   2021-11-05   
610-957 5   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228      
610-957 6   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228      
610-957 7   624H ONVOY SPECTRUM, LLC 228   2021-11-05   
610-957 8   6664 SPRINT SPECTRUM, L.P. 228   2015-04-17   
610-957 9   6664 SPRINT SPECTRUM, L.P. 228   2015-04-17   

<< 1 2 3 4 5

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.