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 |
|---|---|---|---|---|
| 3E77D2 |  | 2026-08-19 15:16:41 | 2026-08-19 15:16:41 | |
| 51119B |  | 2026-07-24 10:16:24 | 2026-08-19 14:48:39 | MBU3FW |
| 501C5A |  | 2026-08-02 08:13:25 | 2026-08-19 14:48:39 | CTN52R CTN475 CTN25F |
| 1579EF |  | 2026-08-19 14:43:36 | 2026-08-19 14:48:26 | |
| 38B5BB |  | 2025-01-21 16:58:12 | 2026-08-19 14:48:26 | |
| F2D411 | (reserved-for-future-use) | 2026-08-16 09:45:55 | 2026-08-19 14:48:26 | |
| 738C0C |  | 2026-07-28 22:37:14 | 2026-08-19 14:48:26 | ICL983 |
| 02108E |  | 2026-08-19 14:37:08 | 2026-08-19 14:48:26 | |
| 3E606D | | 2026-08-19 14:47:21 | 2026-08-19 14:47:21 | |
| 338407 |  | 2026-08-16 07:05:40 | 2026-08-19 14:38:14 | |
| 388261 | | 2026-04-13 05:48:01 | 2026-08-19 14:38:14 | MOUET2 |
| 494A29 |  | 2026-08-16 07:48:43 | 2026-08-19 14:36:36 | |
| 48E97C |  | 2026-08-12 22:11:13 | 2026-08-19 14:32:18 | LOT6393 LOT1CD |
| 29BCFA | (reserved-for-SAM) | 2026-08-19 14:25:29 | 2026-08-19 14:31:53 | |
| 4B4DB4 |  | 2026-08-19 14:24:05 | 2026-08-19 14:24:05 | |
| 4A2185 |  | 2026-08-10 12:43:58 | 2026-08-19 14:17:49 | AEZ2121 AEZ965S |
| 8966FC |  | 2026-07-22 18:45:16 | 2026-08-19 14:14:37 | UAE81 |
| DB0EF7 | (reserved-for-future-use) | 2026-08-19 14:02:15 | 2026-08-19 14:13:33 | |
| F2B42A | (reserved-for-future-use) | 2026-08-16 07:21:44 | 2026-08-19 14:08:42 | |
| 40838A |  | 2026-08-01 18:57:55 | 2026-08-19 13:56:51 | EZY92EP |
| A1E44B |  | 2026-08-16 10:29:50 | 2026-08-19 13:53:40 | |
| 4BC8E2 |  | 2026-07-30 15:17:39 | 2026-08-19 13:53:39 | PGT52GR |
| 39BB27 | | 2026-07-31 06:05:01 | 2026-08-19 13:48:53 | AFR1285 AFR1284 |
| 396FFC | | 2023-02-09 13:37:02 | 2026-08-19 13:48:53 | FJIXE |
| B752A2 | (reserved-for-future-use) | 2026-08-19 13:39:40 | 2026-08-19 13:46:12 |