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: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-587 A Fremont-Newark: Greenleaf DA CA SNJUCACL7MD  965H FRACTEL, LLC 722      
341-587 0 Fremont-Newark: Greenleaf DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
341-587 1 Fremont-Newark: Greenleaf DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
341-587 2 Fremont-Newark: Greenleaf DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
341-587 3 Fremont-Newark: Greenleaf DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
341-587 4 Fremont-Newark: Greenleaf DA CA SNJUCACL9MD  516J TON80 COMMUNICATIONS, LLC 722      
341-587 5 Fremont-Newark: Greenleaf DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
341-587 6 Fremont-Newark: Greenleaf DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
341-587 7 Fremont-Newark: Greenleaf DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
341-587 8 Fremont-Newark: Greenleaf DA CA SNJUCACL7MD  965H FRACTEL, LLC 722      
341-587 9 Fremont-Newark: Greenleaf DA CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.