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: 607 [Rate centres in NPA 607] [Dial plan for NPA 607]

NXX: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-420 A Binghamton NY BNGHNYCX5MD  732J NUSO, LLC 138      
607-420 1 Binghamton NY BNGHNYCX5MD  732J NUSO, LLC 138   2023-05-14   
607-420 2 Binghamton NY   732J NUSO, LLC 138   2025-05-10   
607-420 3 Binghamton NY   732J NUSO, LLC 138   2025-05-15   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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