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: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-420 A Woodbury NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-420 0 Woodbury NJ CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222      
856-420 1 Woodbury NJ CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222      
856-420 2 Woodbury NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-420 3 Woodbury NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-420 4 Woodbury NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-420 5 Woodbury NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-420 6 Woodbury NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-420 7 Woodbury NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-420 8 Woodbury NJ CMDNNJCECM2  5562 METROPCS, INC. 222      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.