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.

OCN: 148J TELENGY LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
312-761 A Chicago Zone 01-Calumet IL CHCGILWUQMD  358      
312-761 0 Chicago Zone 01-Calumet IL CHCGILWUQMD  358   2018-07-09   
609-874 9 Princeton NJ CMDNNJCE53Z  222   2020-02-10   
609-913 A Trenton NJ CMDNNJCE53Z  222      
609-913 0 Trenton NJ CMDNNJCE53Z  222   2018-07-07   
773-541 4 Chicago Zone 02-Edgewater IL CHCGILWUQMD  358   2020-02-29   
774-418 0 Worcester MA SOVLMAAB0MD  128   2020-02-29   
857-346 A Boston MA SOVLMAAB0MD  128      
857-346 0 Boston MA SOVLMAAB0MD  128   2018-07-07   
862-320 A Newark NJ JRCYNJ65AMD  224      
862-320 0 Newark NJ JRCYNJ65AMD  224   2018-07-07   
973-925 6 Paterson NJ JRCYNJ65AMD  224   2020-02-10   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.