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.

Williamstown, NJ

<< 1 2 3

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
856-885 3 CMDNNJCE59Z  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 222   2007-08-02   
856-885 4 CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222   2007-06-14   
856-885 5 PRTNNJ312MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 222      
856-885 6 CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222   2006-10-10   
856-885 7 CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2023-12-09   
856-885 8 CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222   2007-06-14   
856-885 9 CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2022-10-23   
856-889 A CMDNNJCE59Z  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 222      

<< 1 2 3

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.