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: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

NXX: 848

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-848 A Antioch CA OKLDCAAN5MD  7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 722      
925-848 0 Antioch CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2021-05-25   
925-848 1 Antioch CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2022-04-19   
925-848 2 Antioch CA   649C ONVOY, LLC - CA 722      
925-848 3 Antioch CA   649C ONVOY, LLC - CA 722      
925-848 4 Antioch CA   5562 METROPCS, INC. 722   2005-05-24   
925-848 5 Antioch CA   5562 METROPCS, INC. 722   2005-05-24   
925-848 6 Antioch CA   5562 METROPCS, INC. 722   2005-05-24   
925-848 7 Antioch CA   5562 METROPCS, INC. 722   2005-05-24   
925-848 8 Antioch CA   5562 METROPCS, INC. 722   2005-05-24   
925-848 9 Antioch CA   5562 METROPCS, INC. 722   2005-05-24   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.