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: 838 [Rate centres in NPA 838] [Dial plan for NPA 838]

NXX: 866

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
838-866 A St Regis Falls NY ALBYNYPSHMD  965H FRACTEL, LLC 134      
838-866 0 St Regis Falls NY   515J IP HORIZON LLC 134   2024-08-16   
838-866 2 St Regis Falls NY   384C ONVOY, LLC- NY 134   2023-07-22   
838-866 5 St Regis Falls NY   155E PEERLESS NETWORK OF NEW YORK, LLC - NY 134   2024-05-23   
838-866 6 St Regis Falls NY   965H FRACTEL, LLC 134   2022-02-25   
838-866 7 St Regis Falls NY   624H ONVOY SPECTRUM, LLC 134   2022-03-04   
838-866 8 St Regis Falls NY   624H ONVOY SPECTRUM, LLC 134   2022-03-04   
838-866 9 St Regis Falls NY   384C ONVOY, LLC- NY 134   2023-01-06   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.