The Federal Communications Commission (FCC) has granted a total of 46 licenses and call signs in the category of Ship Compulsory Equipped license in Oak Brook, Illinois. Select a call sign from the table below to view its details such as the date of authorization, expiration date, service description, and so forth.
| Call Sign | License Holder Name | Date of Authorization |
|---|---|---|
| WDB2117 | Great Lakes Dredge & Dock Company | 2012-09-28 |
| WDB2398 | Great Lakes Dredge & Dock Company | 2012-09-28 |
| WDB4489 | Great Lakes Dredge & Dock Company | 2013-06-13 |
| WDC6804 | Great Lakes Dredge & Dock Company, LLC | 2015-08-08 |
| WDC9351 | Great Lakes Dredge & Dock Company, LLC. | 2006-03-22 |
| WDD5305 | Great Lakes Dredge & Dock Company, LLC. | 2006-12-21 |
| WDD6293 | Great Lakes Dredge & Dock Company, LLC. | 2007-03-07 |
| WDD6752 | Great Lakes Dredge & Dock Company, LLC. | 2007-04-03 |
| WDD6754 | Great Lakes Dredge & Dock Company, LLC. | 2007-04-03 |
| WDD7237 | Great Lakes Dredge & Dock Company, LLC. | 2007-04-28 |
| WDD7422 | Great Lakes Dredge & Dock Company, LLC. | 2017-05-05 |
| WDD7423 | Great Lakes Dredge & Dock Company, LLC. | 2017-05-05 |
| WDD7454 | Great Lakes Dredge & Dock Company, LLC. | 2017-05-05 |
| WDD7487 | Great Lakes Dredge & Dock Company, LLC. | 2017-05-11 |
| WDD8914 | Great Lakes Dredge & Dock Company, LLC. | 2017-07-12 |
| WDD9609 | Great Lakes Dredge & Dock Company, LLC. | 2017-09-14 |
| WDD9628 | Great Lakes Dredge & Dock Company, LLC. | 2017-09-14 |
| WDD9631 | Great Lakes Dredge & Dock Company, LLC. | 2017-09-14 |
| WDD9643 | Great Lakes Dredge & Dock Company, LLC | 2017-09-14 |
| WDD9644 | Great Lakes Dredge & Dock Company, LLC. | 2017-09-14 |
| WDD9646 | Great Lakes Dredge & Dock Company, LLC. | 2007-09-20 |
| WDD9685 | Great Lakes Dredge & Dock Company, LLC. | 2007-09-22 |
| WDD9686 | Great Lakes Dredge & Dock Company, LLC. | 2017-09-14 |
| WDD9687 | Great Lakes Dredge & Dock Company, LLC | 2017-09-14 |
| WDD9714 | Great Lakes Dredge & Dock Company, LLC. | 2007-09-26 |
| WDD9727 | Great Lakes Dredge & Dock Company, LLC. | 2007-09-27 |
| WDD9795 | Great Lakes Dredge & Dock Company, LLC. | 2017-10-03 |
| WDD9924 | Great Lakes Dredge & Dock Company, LLC. | 2007-10-16 |
| WDD9925 | Great Lakes Dredge & Dock Company, LLC. | 2017-10-03 |
| WDD9945 | Great Lakes Dredge & Dock Company, LLC. | 2017-10-03 |
| WDD9946 | Great Lakes Dredge & Dock Company, LLC. | 2007-10-17 |
| WDE3438 | Great Lakes Dredge & Dock Company, LLC. | 2008-02-23 |
| WDE3439 | Great Lakes Dredge & Dock Company, LLC. | 2008-02-23 |
| WDE3752 | Great Lakes Dredge & Dock Company, LLC. | 2008-03-19 |
| WDE3762 | Great Lakes Dredge & Dock Company, LLC. | 2008-03-20 |
| WDE3769 | Great Lakes Dredge & Dock Company, LLC. | 2008-03-20 |
| WDE3770 | Great Lakes Dredge & Dock Company, LLC. | 2008-03-20 |
| WDE4526 | Great Lakes Dredge & Dock Company, LLC. | 2008-05-06 |
| WDE5127 | Great Lakes Dredge & Dock Company, LLC. | 2008-06-12 |
| WDF6202 | Great Lakes Dredge & Dock Company, LLC | 2010-11-17 |
| WDG5374 | Great Lakes Dredge & Dock Company, LLC | 2012-09-19 |
| WDG5610 | Great Lakes Dredge & Dock Company, LLC | 2012-10-05 |
| WDG5633 | Great Lakes Dredge & Dock Company, LLC | 2012-10-06 |
| WDG5687 | Great Lakes Dredge & Dock Company, LLC | 2012-10-11 |
| WDG5690 | Great Lakes Dredge & Dock Company, LLC | 2012-10-11 |
| WDH6661 | Great Lakes Dredge & Dock Company, LLC | 2014-09-11 |
