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: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-544 A Riverside NJ CMDNNJCEX5Z  7134 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 222      
856-544 0 Riverside NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-544 1 Riverside NJ CMDNNJCEXFZ  264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 222      
856-544 2 Riverside NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-544 3 Riverside NJ CMDNNJCE58Z  318J COMCAST IP PHONE, LLC 222      
856-544 4 Riverside NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-544 5 Riverside NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-544 6 Riverside NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222      
856-544 7 Riverside NJ CMDNNJCE08Z  508J CENTURYLINK COMMUNICATIONS, LLC 222      
856-544 8 Riverside NJ   515J IP HORIZON LLC 222      
856-544 9 Riverside NJ CMDNNJCEX5Z  7134 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 222      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.