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: 240

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-240 A Collingswood NJ CMDNNJ32FMD  7310 TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 222      
856-240 0 Collingswood NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222   2010-10-11   
856-240 1 Collingswood NJ CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222   2005-05-20   
856-240 2 Collingswood NJ CMDNNJCEDS8  3639 MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 222   2004-03-26   
856-240 3 Collingswood NJ CMDNNJCE51Z  624H ONVOY SPECTRUM, LLC 222   2021-05-01   
856-240 4 Collingswood NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2023-05-21   
856-240 5 Collingswood NJ   829J PAETEC ITEL, LLC 222   2005-12-31   
856-240 7 Collingswood NJ CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222   2006-10-05   
856-240 8 Collingswood NJ CMDNNJCEX5Y  9003 NETCARRIER TELECOM, INC. - NJ 222   2007-08-29   
856-240 9 Collingswood NJ CMDNNJ32FMD  7310 TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 222      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.