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 |
|---|---|---|---|---|
| 39099B |  | 2024-12-17 11:47:50 | 2025-01-20 15:50:56 | FPSBC |
| 33FCBB |  | 2024-05-22 09:38:33 | 2025-01-20 14:56:51 | |
| 666442 | (reserved-for-MID) | 2025-01-20 14:13:28 | 2025-01-20 14:35:47 | |
| 3B23FF | | 2024-05-01 10:10:36 | 2025-01-20 13:16:02 | MOUET2 |
| 3935FF | | 2025-01-16 08:18:52 | 2025-01-20 07:21:45 | |
| A4A8D0 |  | 2025-01-20 06:16:51 | 2025-01-20 06:41:15 | N4K |
| 38F0DB | | 2024-05-10 11:43:10 | 2025-01-20 00:41:03 | |
| 38B59B | | 2024-04-16 04:58:39 | 2025-01-19 21:22:09 | |
| A70C2D | | 2025-01-19 18:39:42 | 2025-01-19 19:00:21 | N553SN |
| 3C55CC |  | 2025-01-19 17:50:56 | 2025-01-19 17:54:53 | |
| 6BB821 | (reserved-for-ASIA) | 2025-01-19 16:54:42 | 2025-01-19 16:58:41 | |
| 3B13FF | | 2024-04-15 16:44:30 | 2025-01-19 15:39:21 | |
| 38777C | | 2024-04-25 15:13:29 | 2025-01-19 13:51:29 | FJLDG |
| 8FA236 | Unallocated | 2025-01-19 12:17:07 | 2025-01-19 12:21:27 | |
| B5886C | (reserved-for-future-use) | 2025-01-19 11:52:49 | 2025-01-19 11:59:23 | |
| 38563D | | 2024-09-29 07:42:48 | 2025-01-19 10:34:16 | |
| 12173C |  | 2025-01-18 15:25:52 | 2025-01-18 15:30:38 | |
| 4D404D |  | 2022-02-10 09:35:10 | 2025-01-18 14:57:18 | |
| 40025F |  | 2025-01-18 09:16:53 | 2025-01-18 12:08:18 | VPCIC |
| A93077 | | 2025-01-18 08:38:16 | 2025-01-18 08:44:44 | |
| 38F0FB | | 2024-05-19 00:45:37 | 2025-01-17 22:51:30 | |
| 300970 | | 2023-08-13 08:51:46 | 2025-01-17 16:36:21 | IFORD |
| FE5256 | (reserved-for-future-use) | 2025-01-17 16:21:32 | 2025-01-17 16:30:21 | |
| 8BC86C | Unallocated | 2025-01-16 10:10:34 | 2025-01-17 16:13:59 | |
| BE452D | (reserved-for-future-use) | 2025-01-17 15:58:48 | 2025-01-17 16:05:17 |