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: 856 [Rate centres in NPA 856] [Dial plan for NPA 856]

NXX: 658

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-658 A Swedesboro NJ CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222      
856-658 0 Swedesboro NJ   637C ONVOY, LLC - NJ 222   2016-04-29   
856-658 1 Swedesboro NJ   637C ONVOY, LLC - NJ 222   2016-04-29   
856-658 2 Swedesboro NJ   318J COMCAST IP PHONE, LLC 222   2015-10-09   
856-658 3 Swedesboro NJ   073H TELNYX LLC 222   2017-03-15   
856-658 4 Swedesboro NJ   637C ONVOY, LLC - NJ 222   2025-05-10   
856-658 5 Swedesboro NJ   637C ONVOY, LLC - NJ 222   2020-10-24   
856-658 6 Swedesboro NJ   637C ONVOY, LLC - NJ 222   2020-10-24   
856-658 7 Swedesboro NJ   637C ONVOY, LLC - NJ 222   2016-03-07   
856-658 8 Swedesboro NJ   637C ONVOY, LLC - NJ 222   2016-03-07   
856-658 9 Swedesboro NJ   264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 222   2016-10-13   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.