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: 212

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-212 A Oakland: Berkeley DA CA SNFCCAMKX9X  073H TELNYX LLC 722      
341-212 0 Oakland: Berkeley DA CA SNFCCAMKX9X  073H TELNYX LLC 722   2022-01-22   
341-212 1 Oakland: Berkeley DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 2 Oakland: Berkeley DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 3 Oakland: Berkeley DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 4 Oakland: Berkeley DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 5 Oakland: Berkeley DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 6 Oakland: Berkeley DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2022-01-23   
341-212 7 Oakland: Berkeley DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2022-01-23   
341-212 8 Oakland: Berkeley DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 9 Oakland: Berkeley DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-01-23   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.