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.

Atglen, PA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
610-593 A ATGLPAXARS0  0161 COMMONWEALTH TELEPHONE COMPANY LLC 228      
610-979 A PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228      
610-979 0 PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228   2008-12-15   
610-979 1   3806 CORE COMMUNICATIONS, INC. - PA 228   2009-04-10   
610-979 2 PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228   2024-10-26   
610-979 3   145J TERRA NOVA TELECOM INC. 228   2025-08-01   
610-979 6 FTWSPAFWX2X  7309 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 228   2016-03-21   
610-979 7 PHLAPA031MD  508J CENTURYLINK COMMUNICATIONS, LLC 228   2017-10-05   
610-979 8 FTWSPAFWIMD  422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 228   2012-07-02   
610-979 9 PHLAPAFGXCX  073H TELNYX LLC 228   2021-02-18   
835-206 A PHLAPAFGD0S  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228      
835-206 0 PHLAPAFGXCX  073H TELNYX LLC 228   2023-10-01   
835-206 1 PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228   2023-06-26   
835-206 4 PHLAPAFGD0S  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228   2022-12-29   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.