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.
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NPA: 640 [Rate centres in NPA 640] [Dial plan for NPA 640]

NXX: 465

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
640-465 A Trenton NJ   883K AHOI LLC 222   2026-05-18   
640-465 0 Trenton NJ   637C ONVOY, LLC - NJ 222   2026-05-21   
640-465 8 Trenton NJ   883K AHOI LLC 222   2026-05-18   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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