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: LSANCA03GMD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
951-592 4 Riverside CA 624H ONVOY SPECTRUM, LLC 730   2022-01-09   
951-592 5 Riverside CA 624H ONVOY SPECTRUM, LLC 730   2022-01-09   
951-592 6 Riverside CA 624H ONVOY SPECTRUM, LLC 730   2022-01-09   
951-592 7 Riverside CA 624H ONVOY SPECTRUM, LLC 730   2022-01-09   
951-592 9 Riverside CA 624H ONVOY SPECTRUM, LLC 730   2022-06-05   
951-597 4 Corona CA 624H ONVOY SPECTRUM, LLC 730   2022-01-10   
951-597 5 Corona CA 624H ONVOY SPECTRUM, LLC 730   2022-01-10   
951-597 6 Corona CA 624H ONVOY SPECTRUM, LLC 730   2022-01-10   
951-597 7 Corona CA 624H ONVOY SPECTRUM, LLC 730   2022-01-10   
951-598 5 Arlington CA 624H ONVOY SPECTRUM, LLC 730   2022-02-21   
951-598 6 Arlington CA 624H ONVOY SPECTRUM, LLC 730   2022-02-21   
951-605 4 Woodcrest CA 624H ONVOY SPECTRUM, LLC 730   2025-01-23   
951-618 0 Riverside CA 624H ONVOY SPECTRUM, LLC 730   2023-05-14   
951-618 9 Riverside CA 624H ONVOY SPECTRUM, LLC 730   2023-05-14   
951-621 6 Corona CA 624H ONVOY SPECTRUM, LLC 730   2023-11-16   
951-624 0 Arlington CA 624H ONVOY SPECTRUM, LLC 730   2023-05-14   
951-624 1 Arlington CA 624H ONVOY SPECTRUM, LLC 730   2023-05-14   
951-625 4 Corona CA 624H ONVOY SPECTRUM, LLC 730   2023-06-06   
951-625 5 Corona CA 624H ONVOY SPECTRUM, LLC 730   2023-06-06   
951-625 6 Corona CA 624H ONVOY SPECTRUM, LLC 730   2023-06-08   
951-625 7 Corona CA 624H ONVOY SPECTRUM, LLC 730   2023-06-08   
951-636 9 Corona CA 624H ONVOY SPECTRUM, LLC 730   2023-11-16   
951-732 9 Riverside CA 624H ONVOY SPECTRUM, LLC 730   2025-05-16   
951-752 2 Mira Loma CA 624H ONVOY SPECTRUM, LLC 730   2025-01-23   
951-762 2 Arlington CA 624H ONVOY SPECTRUM, LLC 730   2025-05-19   
951-762 3 Arlington CA 624H ONVOY SPECTRUM, LLC 730   2025-05-19   
951-762 4 Arlington CA 624H ONVOY SPECTRUM, LLC 730   2025-05-19   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.