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: 306

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-306 A Berlin NJ PNVLNJAGH00  4869 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - NJ 222      
856-306 0 Berlin NJ PNVLNJAGH00  4869 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - NJ 222      
856-306 1 Berlin NJ PNVLNJAGH00  4869 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - NJ 222      
856-306 2 Berlin NJ CMDNNJCEDS8  3639 MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 222   2004-03-26   
856-306 3 Berlin NJ PNVLNJAGH00  4869 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - NJ 222      
856-306 4 Berlin NJ PNVLNJAGH00  4869 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - NJ 222      
856-306 5 Berlin NJ PRTNNJ312MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 222   2008-01-31   
856-306 6 Berlin NJ PNVLNJAGH00  4869 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - NJ 222      
856-306 7 Berlin NJ CMDNNJCE55Z  321J HD CARRIER LLC 222   2020-05-01   
856-306 8 Berlin NJ CMDNNJCEX5Z  7134 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 222   2007-07-01   
856-306 9 Berlin NJ PNVLNJAGH00  4869 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - NJ 222      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.