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: CMDNNJCEX1Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
609-940 A Trenton NJ 939H COMMIO, LLC 222      
856-570 A Cedarville NJ 939H COMMIO, LLC 222      
856-572 A Franklinville NJ 939H COMMIO, LLC 222      
856-578 A Port Norris NJ 939H COMMIO, LLC 222      
856-584 A Woodstown NJ 939H COMMIO, LLC 222      
856-598 A Elmer NJ 939H COMMIO, LLC 222   2024-03-11   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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