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: 819

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-819 A Pottstown PA PHLAPAMKXSX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-819 0 Pottstown PA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-819 1 Pottstown PA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-819 2 Pottstown PA   829J PAETEC ITEL, LLC 228   2004-12-16   
610-819 3 Pottstown PA   624H ONVOY SPECTRUM, LLC 228   2021-11-06   
610-819 4 Pottstown PA   547E ONVOY, LLC - PA 228   2020-12-24   
610-819 5 Pottstown PA   547E ONVOY, LLC - PA 228   2020-12-24   
610-819 7 Pottstown PA   547E ONVOY, LLC - PA 228   2020-12-24   
610-819 8 Pottstown PA   547E ONVOY, LLC - PA 228   2024-07-01   
610-819 9 Pottstown PA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.