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: SLKCUTMAXHY

1 2 3 4 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
385-317 5 Morgan UT 624H ONVOY SPECTRUM, LLC 660   2025-01-30   
385-341 5 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2020-07-06   
385-341 6 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2020-07-06   
385-341 7 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2020-07-06   
385-359 3 American Fork UT 624H ONVOY SPECTRUM, LLC 660   2021-07-23   
385-361 6 Midvale UT 624H ONVOY SPECTRUM, LLC 660   2024-08-12   
385-380 2 Ogden UT 624H ONVOY SPECTRUM, LLC 660   2025-01-30   
385-390 5 Clearfield UT 624H ONVOY SPECTRUM, LLC 660   2021-07-23   
385-402 0 Bountiful UT 624H ONVOY SPECTRUM, LLC 660   2021-11-19   
385-402 2 Bountiful UT 624H ONVOY SPECTRUM, LLC 660   2021-07-23   
385-403 2 Farmington UT 624H ONVOY SPECTRUM, LLC 660   2022-02-19   
385-403 5 Farmington UT 624H ONVOY SPECTRUM, LLC 660   2021-07-23   
385-403 6 Farmington UT 624H ONVOY SPECTRUM, LLC 660   2021-12-10   
385-403 7 Farmington UT 624H ONVOY SPECTRUM, LLC 660   2021-12-10   
385-415 6 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2022-06-15   
385-416 4 Kaysville UT 624H ONVOY SPECTRUM, LLC 660   2021-07-23   
385-417 0 American Fork UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-417 1 American Fork UT 624H ONVOY SPECTRUM, LLC 660   2021-11-21   
385-417 2 American Fork UT 624H ONVOY SPECTRUM, LLC 660   2021-11-21   
385-420 6 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2020-07-06   
385-420 8 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2020-07-06   
385-426 6 Clearfield UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-426 7 Clearfield UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-426 8 Clearfield UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-430 3 Clearfield UT 624H ONVOY SPECTRUM, LLC 660   2021-11-29   
385-430 4 Clearfield UT 624H ONVOY SPECTRUM, LLC 660   2021-11-29   
385-430 5 Clearfield UT 624H ONVOY SPECTRUM, LLC 660   2021-11-29   
385-430 6 Clearfield UT 624H ONVOY SPECTRUM, LLC 660   2021-11-29   
385-438 5 Payson UT 624H ONVOY SPECTRUM, LLC 660   2025-01-30   
385-443 6 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2022-01-14   
385-443 7 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2022-01-14   
385-451 0 Kaysville UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-451 1 Kaysville UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-451 2 Kaysville UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-451 3 Kaysville UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-451 4 Kaysville UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-451 5 Kaysville UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-451 6 Kaysville UT 624H ONVOY SPECTRUM, LLC 660   2022-01-08   
385-487 4 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2021-05-23   
385-487 5 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2021-05-23   
385-503 0 Bountiful UT 624H ONVOY SPECTRUM, LLC 660   2022-01-11   
385-503 1 Bountiful UT 624H ONVOY SPECTRUM, LLC 660   2022-01-11   
385-543 6 Springville UT 624H ONVOY SPECTRUM, LLC 660   2025-01-30   
385-546 4 Pleasant Grove UT 624H ONVOY SPECTRUM, LLC 660   2025-01-30   
385-550 9 Bountiful UT 624H ONVOY SPECTRUM, LLC 660   2024-10-15   
385-562 0 Bountiful UT 624H ONVOY SPECTRUM, LLC 660   2025-02-23   
385-562 1 Bountiful UT 624H ONVOY SPECTRUM, LLC 660   2025-02-23   
385-564 5 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2024-11-14   
385-564 6 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2024-11-14   
385-564 7 Salt Lake City UT 624H ONVOY SPECTRUM, LLC 660   2024-11-14   

1 2 3 4 >>

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.