| Updated 2 Subcategories | Starcom21 | 2025-04-13 00:15:54 | 
| Updated Agency Location Details | Starcom21 | 2025-04-13 00:15:26 | 
| Updated Subcategory: (Center for Severe Storm Research (CSSR)) | Starcom21 | 2025-04-12 23:43:24 | 
| Frequencies Updated (1) | Starcom21 | 2024-04-27 20:12:29 | 
| Added Frequency 464.325 (Plenge, John: Farming (Luray)) | Starcom21 | 2016-09-06 21:31:36 | 
| Added Frequency 464.6875 (Buford, Kevin: Farming (Kahoka)) | Starcom21 | 2016-09-06 02:17:08 | 
| Added Subcategory: Miscellaneous | Starcom21 | 2016-09-06 02:14:53 | 
| Changed Subcategory Details For: Center for Severe Storm Research (CSSR) | Starcom21 | 2015-01-30 02:12:23 | 
| Changed category from (CCCC 99) to (Businesses 99) | Starcom21 | 2015-01-30 02:10:51 | 
| Added Subcategory: ccc | Starcom21 | 2015-01-19 23:51:06 | 
| Added category (CCCC 99) | Starcom21 | 2015-01-19 23:50:50 |