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: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-631 A Haddon Heights NJ CMDNNJCEXHX  3079 US LEC OF PENNSYLVANIA INC. - NJ 222      
856-631 0 Haddon Heights NJ CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2019-08-31   
856-631 1 Haddon Heights NJ CMDNNJCEXHX  3079 US LEC OF PENNSYLVANIA INC. - NJ 222      
856-631 2 Haddon Heights NJ CMDNNJCEXHX  3079 US LEC OF PENNSYLVANIA INC. - NJ 222      
856-631 3 Haddon Heights NJ CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2015-06-30   
856-631 4 Haddon Heights NJ CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2015-12-01   
856-631 5 Haddon Heights NJ CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2015-03-24   
856-631 6 Haddon Heights NJ CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2015-01-13   
856-631 7 Haddon Heights NJ CMDNNJCECM2  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 222   2015-12-21   
856-631 8 Haddon Heights NJ CMDNNJCECM2  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 222   2008-08-18   
856-631 9 Haddon Heights NJ CMDNNJCECM2  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 222   2014-11-30   

Last updated: Fri, 23 Jul 2021 12:43:22 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.