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: 607

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
973-607 A Dover NJ NWRKNJ02Y8X  7421 AT&T - LOCAL 224      
973-607 0 Dover NJ   3639 MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 224   2002-04-08   
973-607 1 Dover NJ   612K CSC VOICE, LLC 224   2002-05-07   
973-607 2 Dover NJ   4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2005-05-13   
973-607 3 Dover NJ   4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2005-05-13   
973-607 4 Dover NJ   4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2004-01-13   
973-607 5 Dover NJ   7421 AT&T - LOCAL 224      
973-607 7 Dover NJ   5562 METROPCS, INC. 224   2005-09-20   
973-607 8 Dover NJ   8407 COOPERATIVE COMMUNICATIONS, INC. 224   2002-03-27   
973-607 9 Dover NJ   5562 METROPCS, INC. 224   2005-10-08   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.