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: 387

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
973-387 A Morristown NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224      
973-387 0 Morristown NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224      
973-387 1 Morristown NJ NWRKNJMDDSE  4123 XO NEW JERSEY, INC. 224   2008-09-21   
973-387 2 Morristown NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224      
973-387 3 Morristown NJ NWRKNJ0205Z  3114 CTC COMMUNICATIONS CORP., DBA CT COMM CORP - NJ 224   2008-08-18   
973-387 4 Morristown NJ NWRKNJ0205Z  3114 CTC COMMUNICATIONS CORP., DBA CT COMM CORP - NJ 224   2006-05-29   
973-387 5 Morristown NJ NBWKNJ17QMD  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224   2009-01-02   
973-387 6 Morristown NJ NWRKNJMDEMD  420F SERVICE ELECTRIC TELEPHONE COMPANY, LLC - NJ 224   2009-09-28   
973-387 7 Morristown NJ PRNYNJFPDS0  4948 CABLEVISION LIGHTPATH, INC. - NJ 224   2010-09-10   
973-387 8 Morristown NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224      
973-387 9 Morristown NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.