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 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
707-918 6 Santa Rosa CA 624H ONVOY SPECTRUM, LLC 722   2021-11-14   
707-918 7 Santa Rosa CA 624H ONVOY SPECTRUM, LLC 722   2021-11-14   
707-918 8 Santa Rosa CA 624H ONVOY SPECTRUM, LLC 722   2021-11-14   
831-257 5 Aptos CA 624H ONVOY SPECTRUM, LLC 722   2020-06-29   
831-257 6 Aptos CA 624H ONVOY SPECTRUM, LLC 722   2020-06-29   
831-257 7 Aptos CA 624H ONVOY SPECTRUM, LLC 722   2020-06-29   
831-257 9 Aptos CA 624H ONVOY SPECTRUM, LLC 722   2021-05-24   
831-266 3 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2021-07-23   
831-268 8 Felton CA 624H ONVOY SPECTRUM, LLC 722   2024-08-18   
831-281 1 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2024-02-02   
831-281 8 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2024-02-02   
831-281 9 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2024-02-02   
831-285 5 Watsonville CA 624H ONVOY SPECTRUM, LLC 722   2023-04-01   
831-289 0 Ben Lomond CA 624H ONVOY SPECTRUM, LLC 722   2024-08-18   
831-336 6 Ben Lomond CA 624H ONVOY SPECTRUM, LLC 722   2021-07-23   
831-366 0 Boulder Creek CA 624H ONVOY SPECTRUM, LLC 722   2024-08-18   
831-401 6 Ben Lomond CA 624H ONVOY SPECTRUM, LLC 722   2021-11-07   
831-401 7 Ben Lomond CA 624H ONVOY SPECTRUM, LLC 722   2021-11-07   
831-432 4 Boulder Creek CA 624H ONVOY SPECTRUM, LLC 722   2021-07-23   
831-432 5 Boulder Creek CA 624H ONVOY SPECTRUM, LLC 722   2021-11-07   
831-432 6 Boulder Creek CA 624H ONVOY SPECTRUM, LLC 722   2021-11-07   
831-529 2 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2024-08-18   
831-536 8 Watsonville CA 624H ONVOY SPECTRUM, LLC 722   2024-08-18   
831-587 1 Watsonville CA 624H ONVOY SPECTRUM, LLC 722   2021-11-19   
831-587 2 Watsonville CA 624H ONVOY SPECTRUM, LLC 722   2021-11-19   
831-666 3 Watsonville CA 624H ONVOY SPECTRUM, LLC 722   2021-07-23   
831-699 3 Felton CA 624H ONVOY SPECTRUM, LLC 722   2021-12-10   
831-699 4 Felton CA 624H ONVOY SPECTRUM, LLC 722   2021-12-10   
831-699 6 Felton CA 624H ONVOY SPECTRUM, LLC 722   2021-07-23   
831-842 9 Aptos CA 624H ONVOY SPECTRUM, LLC 722   2024-08-18   
831-946 1 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
831-946 2 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
831-946 4 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
831-946 5 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
831-946 6 Santa Cruz CA 624H ONVOY SPECTRUM, LLC 722   2021-11-15   
925-220 2 Pittsburg CA 624H ONVOY SPECTRUM, LLC 722   2024-09-01   
925-220 5 Pittsburg CA 624H ONVOY SPECTRUM, LLC 722   2024-09-01   
925-220 6 Pittsburg CA 624H ONVOY SPECTRUM, LLC 722   2024-09-01   
925-220 7 Pittsburg CA 624H ONVOY SPECTRUM, LLC 722   2024-09-01   
925-291 3 Pittsburg West CA 624H ONVOY SPECTRUM, LLC 722   2021-12-10   
925-341 0 Livermore CA 624H ONVOY SPECTRUM, LLC 722   2021-05-23   
925-341 2 Livermore CA 624H ONVOY SPECTRUM, LLC 722   2020-07-02   
925-341 3 Livermore CA 624H ONVOY SPECTRUM, LLC 722   2020-07-02   
925-341 4 Livermore CA 624H ONVOY SPECTRUM, LLC 722   2020-07-02   
925-341 5 Livermore CA 624H ONVOY SPECTRUM, LLC 722   2021-05-23   
925-342 4 Walnut Creek CA 624H ONVOY SPECTRUM, LLC 722   2024-09-01   
925-342 5 Walnut Creek CA 624H ONVOY SPECTRUM, LLC 722   2024-09-01   
925-342 6 Walnut Creek CA 624H ONVOY SPECTRUM, LLC 722   2024-09-01   
925-342 7 Walnut Creek CA 624H ONVOY SPECTRUM, LLC 722   2024-09-01   
925-476 7 Walnut Creek CA 624H ONVOY SPECTRUM, LLC 722   2021-11-18   

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

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.