Local Calling Guide

Area code/prefix search

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
586-435 9 Roseville MI 624H ONVOY SPECTRUM, LLC 340   2023-06-23   
586-500 2 New Baltimore MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
586-500 3 New Baltimore MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
586-500 4 New Baltimore MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
586-540 5 Romeo MI 624H ONVOY SPECTRUM, LLC 340   2021-10-21   
586-544 8 Utica MI 624H ONVOY SPECTRUM, LLC 340   2021-06-17   
586-601 3 Roseville MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
586-648 3 New Baltimore MI 624H ONVOY SPECTRUM, LLC 340   2021-05-23   
586-648 9 New Baltimore MI 624H ONVOY SPECTRUM, LLC 340   2021-05-23   
586-799 8 Utica MI 624H ONVOY SPECTRUM, LLC 340   2021-11-18   
586-799 9 Utica MI 624H ONVOY SPECTRUM, LLC 340   2021-11-18   
586-928 2 New Haven MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
586-981 3 Warren MI 624H ONVOY SPECTRUM, LLC 340   2021-06-17   
586-981 4 Warren MI 624H ONVOY SPECTRUM, LLC 340   2021-11-18   
586-981 8 Warren MI 624H ONVOY SPECTRUM, LLC 340   2021-11-18   
586-981 9 Warren MI 624H ONVOY SPECTRUM, LLC 340   2021-11-18   
734-236 0 Rockwood MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-254 2 Plymouth MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
734-268 7 Dexter MI 624H ONVOY SPECTRUM, LLC 340   2021-05-23   
734-268 8 Dexter MI 624H ONVOY SPECTRUM, LLC 340   2021-05-23   
734-271 8 Carleton MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
734-290 A Dundee MI 624H ONVOY SPECTRUM, LLC 340      
734-290 0 Dundee MI 624H ONVOY SPECTRUM, LLC 340   2021-11-21   
734-290 1 Dundee MI 624H ONVOY SPECTRUM, LLC 340   2021-11-21   
734-290 2 Dundee MI 624H ONVOY SPECTRUM, LLC 340   2021-07-19   
734-299 8 Carleton MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-299 9 Carleton MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-337 4 Ypsilanti MI 624H ONVOY SPECTRUM, LLC 340   2022-01-13   
734-348 2 Flat Rock MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-361 6 Maybee MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
734-390 8 Ypsilanti MI 624H ONVOY SPECTRUM, LLC 340   2021-06-17   
734-406 0 Romulus MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-406 1 Romulus MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-408 9 Dexter MI 624H ONVOY SPECTRUM, LLC 340   2021-07-11   
734-463 7 Plymouth MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
734-471 8 Rockwood MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
734-472 5 Trenton MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
734-488 0 Chelsea MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-488 1 Chelsea MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-488 2 Chelsea MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
734-499 5 Romulus MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
734-510 5 Ann Arbor MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
734-518 6 Livonia MI 624H ONVOY SPECTRUM, LLC 340   2021-11-15   
734-518 8 Livonia MI 624H ONVOY SPECTRUM, LLC 340   2021-11-15   
734-518 9 Livonia MI 624H ONVOY SPECTRUM, LLC 340   2021-11-15   
734-521 9 Livonia MI 624H ONVOY SPECTRUM, LLC 340   2021-11-15   
734-526 8 Milan MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
734-526 9 Milan MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
734-537 5 Maybee MI 624H ONVOY SPECTRUM, LLC 340   2021-11-21   
734-537 6 Maybee MI 624H ONVOY SPECTRUM, LLC 340   2021-11-21   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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