Unknown hex codes
The table below shows the latest 25 unknown hex codes picked up from my location in Briancon and other sites.
| ModeS Code | Country | First Seen (UTC) | Last Seen (UTC) | CallSign |
|---|---|---|---|---|
| 38439C |  | 2025-09-30 11:30:44 | 2025-11-12 11:37:27 | |
| 38B5BB | | 2025-01-21 16:58:12 | 2025-11-12 11:07:51 | |
| 3D0607 |  | 2025-11-10 11:43:57 | 2025-11-12 11:03:34 | DEANN |
| B69750 | (reserved-for-future-use) | 2025-11-12 09:20:30 | 2025-11-12 10:39:11 | |
| 3AAB4B | | 2025-11-12 09:23:11 | 2025-11-12 09:53:35 | FMY89V7 |
| 39D0C8 | | 2025-09-05 16:01:37 | 2025-11-12 09:17:18 | FHUGI |
| 7C9E82 |  | 2025-11-12 08:16:57 | 2025-11-12 08:20:53 | |
| DC1BEF | (reserved-for-future-use) | 2025-11-12 07:30:33 | 2025-11-12 07:58:56 | |
| 300A7F |  | 2025-10-17 09:03:24 | 2025-11-12 07:43:12 | |
| 395F3B | | 2022-12-28 15:33:18 | 2025-11-11 16:20:09 | |
| 3962BC | | 2020-02-21 14:04:41 | 2025-11-11 16:01:16 | |
| 066EBD | Unallocated | 2025-11-11 15:52:35 | 2025-11-11 15:58:07 | |
| 398A9D | | 2025-10-10 16:13:39 | 2025-11-11 15:43:56 | |
| 158CD0 |  | 2025-11-11 09:31:06 | 2025-11-11 15:20:21 | |
| 3965BC | | 2023-09-03 15:26:35 | 2025-11-11 15:10:50 | |
| 3838DC | | 2022-09-20 09:37:16 | 2025-11-11 14:35:22 | FJABV |
| 33FCA6 | | 2025-11-11 13:22:05 | 2025-11-11 14:17:34 | P6 |
| 38777C | | 2024-04-25 15:13:29 | 2025-11-11 14:11:40 | FJLDG |
| 33FC90 | | 2025-11-11 13:28:56 | 2025-11-11 14:11:16 | |
| 611F8C | (reserved-for-MID) | 2025-11-11 13:01:40 | 2025-11-11 13:19:01 | |
| 3850BC | | 2022-03-05 13:48:55 | 2025-11-11 12:53:03 | |
| 5F2DE0 | (reserved-for-EUR/NAT) | 2025-11-11 07:42:16 | 2025-11-11 12:48:00 | |
| 38797C | | 2024-06-13 14:57:46 | 2025-11-11 12:38:08 | |
| 340030 |  | 2025-11-11 11:09:16 | 2025-11-11 11:14:01 | |
| AF7FE5 |  | 2025-11-11 10:10:08 | 2025-11-11 10:59:48 |