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
38B5BB
2025-01-21 16:58:122025-07-17 21:58:25
3AAB1C
2023-05-04 10:15:422025-07-17 21:33:18
BCCB71(reserved-for-future-use)2025-07-17 21:05:482025-07-17 21:14:06
39BE31
2024-07-05 08:58:142025-07-17 19:37:56MORAN67
39BC8B
2024-06-03 09:42:482025-07-17 19:36:51MORAN66
3B23FF
2024-05-01 10:10:362025-07-17 19:35:45MOUET2
38D1F7
2025-07-17 08:13:182025-07-17 19:11:14
35C085
2025-07-17 18:46:072025-07-17 19:01:12
394BBC
2024-05-17 16:28:092025-07-17 18:35:30
5C0A01(reserved-for-EUR/NAT)2025-07-13 09:56:142025-07-17 18:13:51
B8483E(reserved-for-future-use)2025-07-13 08:05:132025-07-17 18:10:32
CAC29EUnallocated2025-07-14 06:59:292025-07-17 17:59:29
175DD4
2025-07-14 08:49:192025-07-17 17:57:50
381C4F
2025-07-13 07:03:272025-07-17 17:57:17
943D7C(reserved-for-NAM/PAC)2025-07-13 09:19:312025-07-17 17:56:09
39BA23
2025-06-18 13:24:582025-07-17 17:38:29
397BDB
2024-07-05 07:53:302025-07-17 17:34:11FPGBE
316D54
2025-07-17 17:14:502025-07-17 17:24:34
396FFC
2023-02-09 13:37:022025-07-17 17:12:01FJIXE
389704
2025-07-17 16:50:412025-07-17 16:57:26
E0E9E7
2025-07-15 08:22:112025-07-17 16:52:25
386C9C
2024-08-14 09:17:212025-07-17 16:36:08
19F1D8
2025-07-17 16:22:382025-07-17 16:30:01
4D405B
2024-07-11 13:24:102025-07-17 16:27:483AMXL
EFB3E3(reserved-for-CAR)2025-07-13 07:05:062025-07-17 16:27:14