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: 315 [Rate centres in NPA 315] [Dial plan for NPA 315]

NXX: 621

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
315-621 A Potsdam NY SYRCNYSUX1Y  384C ONVOY, LLC- NY 136      
315-621 0 Potsdam NY SALNNYBH2MD  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136   2021-10-02   
315-621 1 Potsdam NY SYRCNYSUXWY  997E BANDWIDTH.COM CLEC, LLC - NY 136   2023-04-20   
315-621 2 Potsdam NY SYRCNYSUX1Y  384C ONVOY, LLC- NY 136   2021-03-21   
315-621 3 Potsdam NY SYRCNYSUX1Y  384C ONVOY, LLC- NY 136   2021-03-21   
315-621 4 Potsdam NY SYRCNYSUX1Y  384C ONVOY, LLC- NY 136   2023-07-24   
315-621 5 Potsdam NY   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136   2024-01-22   
315-621 6 Potsdam NY SYRCNYSUX7X  624H ONVOY SPECTRUM, LLC 136   2021-12-11   
315-621 7 Potsdam NY SYRCNYSUX7X  624H ONVOY SPECTRUM, LLC 136   2021-12-11   
315-621 8 Potsdam NY SYRCNYSUXJX  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136   2022-07-12   
315-621 9 Potsdam NY   515J IP HORIZON LLC 136   2021-10-22   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.