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.

Switch: NYCMNY13XNX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
363-205 6 Nassau Zone 5 NY 732J NUSO, LLC 132   2024-12-08   
475-383 8 Greenwich CT 732J NUSO, LLC 132   2025-01-13   
475-383 9 Greenwich CT 732J NUSO, LLC 132   2025-01-13   
516-276 8 Nassau Zone 5 NY 732J NUSO, LLC 132   2025-06-12   
646-601 0 New York City Zone 01 NY 732J NUSO, LLC 132   2024-10-25   
646-601 8 New York City Zone 01 NY 732J NUSO, LLC 132   2024-10-25   
646-625 1 New York City Zone 01 NY 732J NUSO, LLC 132   2025-06-30   
646-640 9 New York City Zone 01 NY 732J NUSO, LLC 132   2025-06-30   
914-543 A Westchester Zone 2 NY 732J NUSO, LLC 132      
914-543 1 Westchester Zone 2 NY 732J NUSO, LLC 132   2022-10-09   
914-663 3 Westchester Zone 2 NY 732J NUSO, LLC 132   2025-09-01   
914-744 3 Westchester Zone 2 NY 732J NUSO, LLC 132   2023-12-07   
917-521 8 New York City Zone 01 NY 732J NUSO, LLC 132   2025-06-12   
934-724 3 Montauk Point NY 732J NUSO, LLC 132   2025-03-15   
934-724 8 Montauk Point NY 732J NUSO, LLC 132   2025-03-15   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.