Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 856 [Rate centres in NPA 856] [Dial plan for NPA 856]

NXX: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-421 A Port Norris NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2025-02-09   
856-421 0 Port Norris NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222   2012-05-24   
856-421 2 Port Norris NJ CMDNNJCEDS8  3639 MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 222   2004-03-26   
856-421 3 Port Norris NJ CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222   2005-10-15   
856-421 5 Port Norris NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2014-07-06   
856-421 6 Port Norris NJ CMDNNJCE51Z  624H ONVOY SPECTRUM, LLC 222   2021-05-02   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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