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 16:58:122026-04-20 03:27:16
248F77(reserved-for-AFI)2026-04-20 01:41:552026-04-20 02:12:11
88DE5E
2026-04-19 21:06:132026-04-19 21:13:08
ED2E19(reserved-for-CAR)2026-04-19 18:32:132026-04-19 18:41:14
426D15
2026-04-19 17:43:492026-04-19 18:08:51
3908FC
2025-03-11 15:18:522026-04-19 18:01:02
48EA6E
2026-04-19 15:29:362026-04-19 17:27:08SJI2
4F093FUnallocated2026-04-19 14:29:312026-04-19 17:20:45
464200
2024-05-02 18:57:182026-04-19 17:18:43
2DE2CF(reserved-for-SAM)2026-04-19 16:57:492026-04-19 17:04:47
8EECE4Unallocated2026-04-19 16:42:152026-04-19 16:47:36
38691C
2023-07-10 14:18:562026-04-19 16:41:53
3921ED
2026-04-19 15:29:212026-04-19 16:10:38
18E39D
2026-04-19 07:43:232026-04-19 16:06:47
351035
2026-04-19 15:26:442026-04-19 15:34:56
DE385A(reserved-for-future-use)2026-04-19 15:25:232026-04-19 15:32:03
394F1C
2022-07-29 18:32:132026-04-19 15:20:47
D95DB3(reserved-for-future-use)2026-04-19 13:39:492026-04-19 14:32:24
3838DC
2022-09-20 09:37:162026-04-19 14:05:32FJABV
39399C
2020-02-24 11:05:212026-04-19 13:42:02
38355C
2024-02-20 13:20:072026-04-19 13:35:41
39279C
2024-08-16 06:33:192026-04-19 12:43:17
39895D
2026-04-19 12:25:382026-04-19 12:40:06FJLXY
C71A62Unallocated2026-04-19 11:50:252026-04-19 11:57:50
5004DE(reserved-for-EUR/NAT)2026-04-19 10:52:492026-04-19 11:01:19