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: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
973-544 A Millburn NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224      
973-544 0 Millburn NJ RDBKNJBADS1  3639 MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 224   2002-04-08   
973-544 1 Millburn NJ NBWKNJ17DS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 224   2005-11-02   
973-544 2 Millburn NJ PSWYNJBXDS0  999H BLUEBIRD COMMUNICATIONS, LLC - NJ 224   2018-09-20   
973-544 3 Millburn NJ HCKNNJHKX4X  624H ONVOY SPECTRUM, LLC 224   2022-02-10   
973-544 4 Millburn NJ HCKNNJHKX4X  624H ONVOY SPECTRUM, LLC 224   2021-12-04   
973-544 5 Millburn NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2020-01-09   
973-544 6 Millburn NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2003-10-21   
973-544 7 Millburn NJ JRCYNJ67CMD  508J CENTURYLINK COMMUNICATIONS, LLC 224   2014-06-24   
973-544 8 Millburn NJ NWRKNJ0248Z  118F BANDWIDTH.COM CLEC, LLC - NJ 224   2008-12-04   
973-544 9 Millburn NJ JRCYNJ65DS4  264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2010-07-15   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.