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: NYCMNY37BMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
347-434 A New York City Zone 11 NY 551G NUSO, LLC 132      
347-609 A New York City Zone 15 NY 551G NUSO, LLC 132      
646-791 A New York City Zone 01 NY 551G NUSO, LLC 132      
646-956 A New York City Zone 01 NY 551G NUSO, LLC 132      
929-379 A New York City Zone 06 NY 551G NUSO, LLC 132      
929-380 A New York City Zone 09 NY 551G NUSO, LLC 132      
929-388 A New York City Zone 04 NY 551G NUSO, LLC 132      
929-495 A New York City Zone 11 NY 551G NUSO, LLC 132      
929-510 A New York City Zone 08 NY 551G NUSO, LLC 132      

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

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