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: NYCMNYZRMMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
363-201 A Nassau Zone 4 NY 939H COMMIO, LLC 132   2024-03-31   
646-949 A New York City Zone 01 NY 939H COMMIO, LLC 132      
845-998 A Tuxedo NY 939H COMMIO, LLC 132      
914-581 A Katonah NY 939H COMMIO, LLC 132      
914-638 A Westchester Zone 1 NY 939H COMMIO, LLC 132   2024-03-31   
914-647 A Westchester Zone 8 NY 939H COMMIO, LLC 132   2024-04-01   
929-540 A New York City Zone 08 NY 939H COMMIO, LLC 132   2024-03-31   
929-550 A New York City Zone 12 NY 939H COMMIO, LLC 132   2024-04-01   
929-739 A New York City Zone 10 NY 939H COMMIO, LLC 132   2024-04-01   
929-740 A New York City Zone 05 NY 939H COMMIO, LLC 132   2024-04-01   
934-243 A Amagansett NY 939H COMMIO, LLC 132      
934-244 A Bayport NY 939H COMMIO, LLC 132      
934-245 A St James NY 939H COMMIO, LLC 132      
934-249 A Greenport (Suffolk) NY 939H COMMIO, LLC 132      
934-250 A Islip NY 939H COMMIO, LLC 132      
934-251 A Midland NY 939H COMMIO, LLC 132      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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