Foxtrotcharlie - A journey to ADS-B tracking with Raspberry Pi

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 11:30:442025-11-12 11:37:27
38B5BB
2025-01-21 16:58:122025-11-12 11:07:51
3D0607
2025-11-10 11:43:572025-11-12 11:03:34DEANN
B69750(reserved-for-future-use)2025-11-12 09:20:302025-11-12 10:39:11
3AAB4B
2025-11-12 09:23:112025-11-12 09:53:35FMY89V7
39D0C8
2025-09-05 16:01:372025-11-12 09:17:18FHUGI
7C9E82
2025-11-12 08:16:572025-11-12 08:20:53
DC1BEF(reserved-for-future-use)2025-11-12 07:30:332025-11-12 07:58:56
300A7F
2025-10-17 09:03:242025-11-12 07:43:12
395F3B
2022-12-28 15:33:182025-11-11 16:20:09
3962BC
2020-02-21 14:04:412025-11-11 16:01:16
066EBDUnallocated2025-11-11 15:52:352025-11-11 15:58:07
398A9D
2025-10-10 16:13:392025-11-11 15:43:56
158CD0
2025-11-11 09:31:062025-11-11 15:20:21
3965BC
2023-09-03 15:26:352025-11-11 15:10:50
3838DC
2022-09-20 09:37:162025-11-11 14:35:22FJABV
33FCA6
2025-11-11 13:22:052025-11-11 14:17:34P6
38777C
2024-04-25 15:13:292025-11-11 14:11:40FJLDG
33FC90
2025-11-11 13:28:562025-11-11 14:11:16
611F8C(reserved-for-MID)2025-11-11 13:01:402025-11-11 13:19:01
3850BC
2022-03-05 13:48:552025-11-11 12:53:03
5F2DE0(reserved-for-EUR/NAT)2025-11-11 07:42:162025-11-11 12:48:00
38797C
2024-06-13 14:57:462025-11-11 12:38:08
340030
2025-11-11 11:09:162025-11-11 11:14:01
AF7FE5
2025-11-11 10:10:082025-11-11 10:59:48