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: 318

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-318 A Williamstown NJ CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222      
856-318 0 Williamstown NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2010-02-26   
856-318 1 Williamstown NJ CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222   2009-03-23   
856-318 2 Williamstown NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222   2010-06-17   
856-318 3 Williamstown NJ   829J PAETEC ITEL, LLC 222   2010-06-30   
856-318 4 Williamstown NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222   2010-11-29   
856-318 5 Williamstown NJ   515J IP HORIZON LLC 222   2013-08-08   
856-318 6 Williamstown NJ CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2014-10-20   
856-318 7 Williamstown NJ CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222   2013-10-03   
856-318 8 Williamstown NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2010-05-21   
856-318 9 Williamstown NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222   2009-02-09   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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