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: 845 [Rate centres in NPA 845] [Dial plan for NPA 845]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
845-403 A Spring Valley NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132      
845-403 0 Spring Valley NY   384C ONVOY, LLC- NY 132   2016-04-14   
845-403 1 Spring Valley NY   384C ONVOY, LLC- NY 132   2016-04-14   
845-403 2 Spring Valley NY   321J HD CARRIER LLC 132   2016-08-22   
845-403 3 Spring Valley NY   321J HD CARRIER LLC 132   2016-08-22   
845-403 4 Spring Valley NY   321J HD CARRIER LLC 132   2016-08-22   
845-403 5 Spring Valley NY   321J HD CARRIER LLC 132   2016-08-22   
845-403 6 Spring Valley NY   7140 TC SYSTEMS, INC. - NY 132   2016-07-08   
845-403 7 Spring Valley NY   073H TELNYX LLC 132   2017-04-21   
845-403 8 Spring Valley NY   831C INTRADO COMMUNICATIONS, LLC 132   2016-09-04   
845-403 9 Spring Valley NY   515J IP HORIZON LLC 132   2017-02-26   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.