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: 431

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-431 A Glassboro NJ CMDNNJCEX5Z  7134 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 222      
856-431 0 Glassboro NJ   637C ONVOY, LLC - NJ 222      
856-431 1 Glassboro NJ CMDNNJCEX5Z  7134 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 222      
856-431 2 Glassboro NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222      
856-431 3 Glassboro NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222      
856-431 4 Glassboro NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222      
856-431 5 Glassboro NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-431 6 Glassboro NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222      
856-431 7 Glassboro NJ CMDNNJCEX5Z  7134 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 222      
856-431 8 Glassboro NJ CMDNNJCEXFZ  264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 222      
856-431 9 Glassboro NJ CMDNNJCEXFZ  264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 222      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.