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   
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   
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   
914-744 3 Westchester Zone 2 NY 732J NUSO, LLC 132   2023-12-07   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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