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.

Switch: SNFCCA21XNZ

1 2 3 4 5 6 7 8 9 10 11 12 13 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
341-207 2 Richmond CA 624H ONVOY SPECTRUM, LLC 722   2022-02-17   
341-207 6 Richmond CA 624H ONVOY SPECTRUM, LLC 722   2022-01-16   
341-207 7 Richmond CA 624H ONVOY SPECTRUM, LLC 722   2022-01-16   
341-208 0 Hayward CA 624H ONVOY SPECTRUM, LLC 722   2022-01-21   
341-208 6 Hayward CA 624H ONVOY SPECTRUM, LLC 722   2022-01-21   
341-210 3 Oakland: Alameda DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-29   
341-210 4 Oakland: Alameda DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-29   
341-210 5 Oakland: Alameda DA CA 624H ONVOY SPECTRUM, LLC 722   2022-02-21   
341-212 1 Oakland: Berkeley DA CA 624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 2 Oakland: Berkeley DA CA 624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 3 Oakland: Berkeley DA CA 624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 4 Oakland: Berkeley DA CA 624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 5 Oakland: Berkeley DA CA 624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 8 Oakland: Berkeley DA CA 624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-212 9 Oakland: Berkeley DA CA 624H ONVOY SPECTRUM, LLC 722   2022-01-23   
341-241 0 Hayward CA 624H ONVOY SPECTRUM, LLC 722   2022-09-21   
341-241 1 Hayward CA 624H ONVOY SPECTRUM, LLC 722   2022-09-21   
341-241 7 Hayward CA 624H ONVOY SPECTRUM, LLC 722   2022-09-21   
341-241 8 Hayward CA 624H ONVOY SPECTRUM, LLC 722   2022-09-21   
341-241 9 Hayward CA 624H ONVOY SPECTRUM, LLC 722   2022-09-21   
341-257 1 Fremont-Newark: Main DA CA 624H ONVOY SPECTRUM, LLC 722   2025-01-30   
341-261 A Fremont-Newark: Greenleaf DA CA 624H ONVOY SPECTRUM, LLC 722   2025-02-27   
341-261 1 Fremont-Newark: Greenleaf DA CA 624H ONVOY SPECTRUM, LLC 722   2025-02-27   
341-341 A Fremont-Newark: Oliver DA CA 624H ONVOY SPECTRUM, LLC 722   2024-11-24   
341-341 3 Fremont-Newark: Oliver DA CA 624H ONVOY SPECTRUM, LLC 722   2024-11-24   
341-341 4 Fremont-Newark: Oliver DA CA 624H ONVOY SPECTRUM, LLC 722   2024-11-24   
341-666 4 Oakland: Trinidad DA CA 624H ONVOY SPECTRUM, LLC 722   2020-07-02   
341-666 5 Oakland: Trinidad DA CA 624H ONVOY SPECTRUM, LLC 722   2020-07-02   
341-666 8 Oakland: Trinidad DA CA 624H ONVOY SPECTRUM, LLC 722   2020-07-02   
341-667 2 Oakland: Fruitvale DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
341-667 3 Oakland: Fruitvale DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
341-667 4 Oakland: Fruitvale DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
341-667 9 Oakland: Fruitvale DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
341-699 1 Oakland: Main-Piedmont DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-16   
341-699 2 Oakland: Main-Piedmont DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-16   
341-699 3 Oakland: Main-Piedmont DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-16   
341-699 4 Oakland: Main-Piedmont DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-16   
341-699 5 Oakland: Main-Piedmont DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-16   
341-732 3 El Sobrante-Pinole CA 624H ONVOY SPECTRUM, LLC 722   2021-11-20   
341-732 4 El Sobrante-Pinole CA 624H ONVOY SPECTRUM, LLC 722   2021-11-20   
341-758 7 Oakland: Fruitvale DA CA 624H ONVOY SPECTRUM, LLC 722   2021-07-23   
341-899 5 Oakland: Trinidad DA CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
341-900 3 Crockett CA 624H ONVOY SPECTRUM, LLC 722   2021-07-23   
341-900 5 Crockett CA 624H ONVOY SPECTRUM, LLC 722   2021-11-07   
341-900 6 Crockett CA 624H ONVOY SPECTRUM, LLC 722   2021-11-07   
369-203 6 Bridgeville CA 624H ONVOY SPECTRUM, LLC 722   2025-01-30   
369-205 5 Guerneville CA 624H ONVOY SPECTRUM, LLC 722   2025-01-30   
369-206 5 Miranda CA 624H ONVOY SPECTRUM, LLC 722   2025-01-30   
369-207 6 Trinidad CA 624H ONVOY SPECTRUM, LLC 722   2025-01-30   
369-210 0 Santa Rosa CA 624H ONVOY SPECTRUM, LLC 722   2024-01-19   

1 2 3 4 5 6 7 8 9 10 11 12 13 >>

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.