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: NYCMNYBXTMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
332-251 2 New York City Zone 01 NY 181J ADVANCED TELECOM SOLUTIONS, LLC 132   2021-10-11   
646-960 A New York City Zone 01 NY 181J ADVANCED TELECOM SOLUTIONS, LLC 132      
646-960 0 New York City Zone 01 NY 181J ADVANCED TELECOM SOLUTIONS, LLC 132   2018-08-10   

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

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