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: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-230 A Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
341-230 0 Richmond CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2023-08-24   
341-230 1 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-06-15   
341-230 2 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-29   
341-230 3 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-29   
341-230 4 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-29   
341-230 5 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-29   
341-230 6 Richmond CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-10-11   
341-230 7 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-29   
341-230 8 Richmond CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2023-10-16   
341-230 9 Richmond CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2023-12-10   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.