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.

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

NXX: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-923 A Odessa NY BNGHNYHYX4Z  793K TWC IP ENABLED SERVICES, LLC 138      
607-923 0 Odessa NY BNGHNYHYXZX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 138   2014-10-10   
607-923 8 Odessa NY BNGHNYHYX4Z  793K TWC IP ENABLED SERVICES, LLC 138   2010-12-31   
607-923 9 Odessa NY BNGHNYHYX1Z  818H PEERING HUB, INC. - NY 138   2023-05-07   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.