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: 716 [Rate centres in NPA 716] [Dial plan for NPA 716]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
716-403 A Tonawanda NY BFLONYFRXHY  384C ONVOY, LLC- NY 140      
716-403 0 Tonawanda NY   384C ONVOY, LLC- NY 140   2018-05-26   
716-403 1 Tonawanda NY   5562 METROPCS, INC. 140   2020-09-04   
716-403 2 Tonawanda NY   384C ONVOY, LLC- NY 140   2019-09-16   
716-403 3 Tonawanda NY   384C ONVOY, LLC- NY 140   2019-09-16   
716-403 4 Tonawanda NY   384C ONVOY, LLC- NY 140   2019-09-16   
716-403 5 Tonawanda NY   624H ONVOY SPECTRUM, LLC 140   2020-08-05   
716-403 6 Tonawanda NY   624H ONVOY SPECTRUM, LLC 140   2020-08-05   
716-403 7 Tonawanda NY   624H ONVOY SPECTRUM, LLC 140   2020-08-05   
716-403 8 Tonawanda NY   997E BANDWIDTH.COM CLEC, LLC - NY 140   2022-11-03   
716-403 9 Tonawanda NY   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 140   2021-07-08   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.