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: 973 [Rate centres in NPA 973] [Dial plan for NPA 973]

NXX: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
973-291 A Butler NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224      
973-291 0 Butler NJ   637C ONVOY, LLC - NJ 224   2025-02-02   
973-291 1 Butler NJ   264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2010-08-26   
973-291 2 Butler NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 224   2010-08-26   
973-291 3 Butler NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 224   2011-08-11   
973-291 4 Butler NJ   612K CSC VOICE, LLC 224   2003-07-07   
973-291 5 Butler NJ   637C ONVOY, LLC - NJ 224   2025-04-01   
973-291 6 Butler NJ   612K CSC VOICE, LLC 224   2005-04-07   
973-291 7 Butler NJ   4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2007-04-21   
973-291 8 Butler NJ   612K CSC VOICE, LLC 224   2007-07-14   
973-291 9 Butler NJ   264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2024-06-22   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.