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 |
|---|---|---|---|---|
| 38B5BB |  | 2025-01-21 16:58:12 | 2025-07-17 21:58:25 | |
| 3AAB1C | | 2023-05-04 10:15:42 | 2025-07-17 21:33:18 | |
| BCCB71 | (reserved-for-future-use) | 2025-07-17 21:05:48 | 2025-07-17 21:14:06 | |
| 39BE31 | | 2024-07-05 08:58:14 | 2025-07-17 19:37:56 | MORAN67 |
| 39BC8B | | 2024-06-03 09:42:48 | 2025-07-17 19:36:51 | MORAN66 |
| 3B23FF | | 2024-05-01 10:10:36 | 2025-07-17 19:35:45 | MOUET2 |
| 38D1F7 | | 2025-07-17 08:13:18 | 2025-07-17 19:11:14 | |
| 35C085 |  | 2025-07-17 18:46:07 | 2025-07-17 19:01:12 | |
| 394BBC | | 2024-05-17 16:28:09 | 2025-07-17 18:35:30 | |
| 5C0A01 | (reserved-for-EUR/NAT) | 2025-07-13 09:56:14 | 2025-07-17 18:13:51 | |
| B8483E | (reserved-for-future-use) | 2025-07-13 08:05:13 | 2025-07-17 18:10:32 | |
| CAC29E | Unallocated | 2025-07-14 06:59:29 | 2025-07-17 17:59:29 | |
| 175DD4 |  | 2025-07-14 08:49:19 | 2025-07-17 17:57:50 | |
| 381C4F | | 2025-07-13 07:03:27 | 2025-07-17 17:57:17 | |
| 943D7C | (reserved-for-NAM/PAC) | 2025-07-13 09:19:31 | 2025-07-17 17:56:09 | |
| 39BA23 | | 2025-06-18 13:24:58 | 2025-07-17 17:38:29 | |
| 397BDB | | 2024-07-05 07:53:30 | 2025-07-17 17:34:11 | FPGBE |
| 316D54 |  | 2025-07-17 17:14:50 | 2025-07-17 17:24:34 | |
| 396FFC | | 2023-02-09 13:37:02 | 2025-07-17 17:12:01 | FJIXE |
| 389704 | | 2025-07-17 16:50:41 | 2025-07-17 16:57:26 | |
| E0E9E7 |  | 2025-07-15 08:22:11 | 2025-07-17 16:52:25 | |
| 386C9C | | 2024-08-14 09:17:21 | 2025-07-17 16:36:08 | |
| 19F1D8 | | 2025-07-17 16:22:38 | 2025-07-17 16:30:01 | |
| 4D405B |  | 2024-07-11 13:24:10 | 2025-07-17 16:27:48 | 3AMXL |
| EFB3E3 | (reserved-for-CAR) | 2025-07-13 07:05:06 | 2025-07-17 16:27:14 |