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: 427

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-427 A Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 0 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 1 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 2 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 3 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 4 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 5 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 6 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 7 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      
856-427 8 Haddonfield NJ   515J IP HORIZON LLC 222   2016-05-07   
856-427 9 Haddonfield NJ HDFDNJHDRP0  9206 VERIZON NEW JERSEY, INC. 222      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.