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: 332 [Rate centres in NPA 332] [Dial plan for NPA 332]

NXX: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
332-310 A New York City Zone 01 NY   384C ONVOY, LLC- NY 132      
332-310 1 New York City Zone 01 NY   384C ONVOY, LLC- NY 132   2026-08-01   
332-310 2 New York City Zone 01 NY   384C ONVOY, LLC- NY 132   2026-09-11   
332-310 3 New York City Zone 01 NY   384C ONVOY, LLC- NY 132   2026-09-11   
332-310 4 New York City Zone 01 NY   384C ONVOY, LLC- NY 132   2026-09-11   
332-310 8 New York City Zone 01 NY   384C ONVOY, LLC- NY 132   2026-08-01   
332-310 9 New York City Zone 01 NY   384C ONVOY, LLC- NY 132   2026-08-01   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.