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: WHPLNYWPX3X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
203-542 A Greenwich CT 7421 AT&T - LOCAL 132      
914-239 A Pleasantville NY 7421 AT&T - LOCAL 132      
914-272 A Westchester Zone 8 NY 7421 AT&T - LOCAL 132      
914-372 A Westchester Zone 7 NY 7421 AT&T - LOCAL 132      
914-452 A Pound Ridge NY 7421 AT&T - LOCAL 132      
914-570 A Westchester Zone 7 NY 7421 AT&T - LOCAL 132      
914-630 A Westchester Zone 6 NY 7421 AT&T - LOCAL 132      
914-766 A Croton Falls NY 7421 AT&T - LOCAL 132      
914-940 A Armonk Village NY 7421 AT&T - LOCAL 132      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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