| Frequencies Updated (1) | timkilbride | 2025-03-31 21:18:10 |
| Added Frequency 120.9 (ALO Approach/Departure/Clearance Delivery RCO) | timkilbride | 2025-03-31 21:10:39 |
| Added Frequency 122.8 (Common Traffic Advisory Frequency) | timkilbride | 2025-03-31 21:06:34 |
| Frequencies Updated (1) | timkilbride | 2025-03-31 21:05:29 |
| Added Frequency 128.328 (Surface Weather Observation Stations) | timkilbride | 2025-03-31 21:05:10 |
| Changed category from (Air Traffic Control [99]) to (Marshalltown Municipal Airport (MIW) [99]) | timkilbride | 2025-03-31 21:03:58 |
| Category (Air Traffic Control) added | timkilbride | 2025-03-31 21:03:35 |
| Updated Agency Location Details | timkilbride | 2025-03-31 21:01:36 |
| Agency (Marshalltown Municipal Airport (MIW)) added | timkilbride | 2025-03-31 20:59:54 |
