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: 341 [Rate centres in NPA 341] [Dial plan for NPA 341]

NXX: 254

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-254 A Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722   2024-10-31   
341-254 0 Oakland: Berkeley DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
341-254 1 Oakland: Berkeley DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
341-254 4 Oakland: Berkeley DA CA   624H ONVOY SPECTRUM, LLC 722      
341-254 5 Oakland: Berkeley DA CA   433E SONIC TELECOM, LLC - CA 722      
341-254 6 Oakland: Berkeley DA CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
341-254 7 Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722      
341-254 8 Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722      
341-254 9 Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.