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: CHCGILIDXDX

<< 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
773-357 0 Chicago Zone 11-O'Hare IL 624H ONVOY SPECTRUM, LLC 358   2024-10-14   
773-357 2 Chicago Zone 11-O'Hare IL 624H ONVOY SPECTRUM, LLC 358   2024-10-14   
773-379 9 Chicago Zone 05-Austin IL 624H ONVOY SPECTRUM, LLC 358   2024-10-14   
773-389 8 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2022-06-19   
773-408 2 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2021-07-09   
773-408 3 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2021-07-09   
773-408 5 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2021-07-09   
773-413 2 Chicago Zone 05-Austin IL 624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-413 4 Chicago Zone 05-Austin IL 624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-446 0 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-446 9 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-516 9 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-541 5 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2020-06-29   
773-541 9 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2022-06-19   
773-560 0 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2022-08-05   
773-560 1 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2022-08-05   
773-560 2 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2022-08-05   
773-560 3 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2022-08-05   
773-597 3 Chicago Zone 07-Stewart IL 624H ONVOY SPECTRUM, LLC 358   2024-10-14   
773-597 6 Chicago Zone 07-Stewart IL 624H ONVOY SPECTRUM, LLC 358   2024-10-14   
773-635 6 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2021-05-22   
773-635 7 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2021-05-22   
773-635 8 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2021-05-22   
773-649 2 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2021-07-09   
773-649 7 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2021-07-09   
773-649 8 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2021-07-09   
773-654 6 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-654 7 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2021-10-22   
773-654 9 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2020-06-29   
773-670 0 Chicago Zone 10-Beverly IL 624H ONVOY SPECTRUM, LLC 358   2024-11-14   
773-670 6 Chicago Zone 10-Beverly IL 624H ONVOY SPECTRUM, LLC 358   2024-11-14   
773-681 3 Chicago Zone 02-Irving IL 624H ONVOY SPECTRUM, LLC 358   2022-08-05   
773-696 6 Chicago Zone 06-Kedzie IL 624H ONVOY SPECTRUM, LLC 358   2021-11-11   
773-705 5 Chicago Zone 04-Humboldt IL 624H ONVOY SPECTRUM, LLC 358   2024-11-14   
773-705 7 Chicago Zone 04-Humboldt IL 624H ONVOY SPECTRUM, LLC 358   2024-11-14   
773-754 2 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-765 9 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-773 A Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358      
773-773 0 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 1 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 2 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 3 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 4 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 5 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 6 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 7 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 8 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-773 9 Chicago Zone 09-South Chicago IL 624H ONVOY SPECTRUM, LLC 358   2023-07-21   
773-800 3 Chicago Zone 02-Edgewater IL 624H ONVOY SPECTRUM, LLC 358   2021-10-29   
773-836 4 Chicago Zone 05-Merrimac IL 624H ONVOY SPECTRUM, LLC 358   2024-10-14   

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

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.