sensors Mode-S transponder
3C4839
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-ABAY · BOMBARDIER BD-700 Global 7000/7500
- Hex
- 3C4839
- Octal
- 17044071
- Decimal
- 3,950,649
- Country
- DE
- Tail
- D-ABAY
- Type
- GL7T
- Flights observed
- 39
- Distinct callsigns
- 2
- Country
- DE
- Last broadcast
- 14h ago
Last known position
Country allocation
The ICAO 24-bit address 3C4839 falls within the block assigned to Germany (DE) by ICAO Annex 10, Volume III. Every aircraft registered in Germany receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.
Callsign history 2 distinct
Recent flights last 39
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | BVR101 | - | Jul 17, 10:25 UTC | Jul 17, 11:55 UTC | 1h 30m |
| 2026-07-15 | BVR101 | - | Jul 15, 07:40 UTC | Jul 15, 09:15 UTC | 1h 35m |
| 2026-07-14 | DABAY | - | Jul 14, 15:50 UTC | Jul 14, 16:20 UTC | 30m |
| 2026-07-13 | BVR101 | MUC → FKB | Jul 13, 15:25 UTC | Jul 13, 16:35 UTC | 1h 10m |
| 2026-07-12 | BVR101 | NCE → MUC | Jul 12, 11:35 UTC | Jul 12, 12:40 UTC | 1h 5m |
| 2026-07-11 | BVR101 | - | Jul 11, 11:30 UTC | Jul 11, 12:30 UTC | 1h 0m |
| 2026-07-10 | BVR101 | - | Jul 10, 08:15 UTC | Jul 10, 10:00 UTC | 1h 45m |
| 2026-07-08 | BVR101 | - | Jul 8, 10:00 UTC | Jul 8, 11:00 UTC | 1h 0m |
| 2026-07-08 | BVR101 | - | Jul 8, 07:40 UTC | Jul 8, 08:50 UTC | 1h 10m |
| 2026-07-08 | BVR101 | - | Jul 8, 05:15 UTC | Jul 8, 05:55 UTC | 40m |
| 2026-06-28 | BVR101 | - | Jun 28, 18:00 UTC | Jun 28, 18:34 UTC | 35m |
| 2026-06-28 | BVR101 | - | Jun 28, 16:09 UTC | Jun 28, 17:04 UTC | 55m |
| 2026-06-25 | BVR101 | - | Jun 25, 11:44 UTC | Jun 25, 12:30 UTC | 45m |
| 2026-06-22 | BVR101 | GRS → MUC | Jun 22, 12:49 UTC | Jun 22, 13:44 UTC | 55m |
| 2026-06-19 | BVR101 | MUC → GRS | Jun 19, 11:20 UTC | Jun 19, 12:34 UTC | 1h 15m |
| 2026-06-18 | BVR101 | - | Jun 18, 09:20 UTC | Jun 18, 10:55 UTC | 1h 35m |
| 2026-06-17 | BVR101 | - | Jun 17, 13:15 UTC | Jun 17, 13:40 UTC | 25m |
| 2026-06-17 | BVR101 | MUC → IBZ | Jun 17, 06:15 UTC | Jun 17, 08:05 UTC | 1h 50m |
| 2026-06-16 | BVR101 | - | Jun 16, 15:30 UTC | Jun 16, 16:05 UTC | 35m |
| 2026-06-07 | BVR101 | - | Jun 7, 17:25 UTC | Jun 7, 18:00 UTC | 35m |
| 2026-06-07 | BVR101 | - | Jun 7, 14:55 UTC | Jun 7, 16:30 UTC | 1h 35m |
| 2026-06-03 | BVR101 | - | Jun 3, 16:15 UTC | Jun 3, 17:55 UTC | 1h 40m |
| 2026-06-03 | DABAY | - | Jun 3, 13:45 UTC | Jun 3, 14:20 UTC | 35m |
| 2026-05-25 | BVR101 | - | May 25, 08:20 UTC | May 25, 08:50 UTC | 30m |
| 2026-05-24 | BVR101 | LAS → MUC | May 24, 21:05 UTC | May 25, 07:00 UTC | 9h 55m |
| 2026-05-20 | BVR101 | MUC → LAS | May 20, 16:10 UTC | May 21, 02:30 UTC | 10h 20m |
| 2026-05-19 | BVR101 | - | May 19, 13:15 UTC | May 19, 13:55 UTC | 40m |
| 2026-05-04 | BVR101 | - | May 4, 16:55 UTC | May 4, 17:30 UTC | 35m |
| 2026-05-04 | BVR101 | - | May 4, 12:05 UTC | May 4, 15:45 UTC | 3h 40m |
| 2026-04-27 | BVR101 | - | Apr 27, 07:00 UTC | Apr 27, 09:10 UTC | 2h 10m |
| 2026-04-26 | BVR101 | HAM → MUC | Apr 26, 11:05 UTC | Apr 26, 12:00 UTC | 55m |
| 2026-04-25 | BVR101 | - | Apr 25, 13:15 UTC | Apr 25, 14:25 UTC | 1h 10m |
| 2026-04-22 | BVR101 | - | Apr 22, 22:15 UTC | Apr 23, 05:35 UTC | 7h 20m |
| 2026-04-19 | BVR101 | - | Apr 19, 10:35 UTC | Apr 19, 18:30 UTC | 7h 55m |
| 2026-04-17 | BVR101 | - | Apr 17, 15:45 UTC | Apr 17, 16:30 UTC | 45m |
| 2026-04-17 | BVR101 | - | Apr 17, 11:25 UTC | Apr 17, 13:05 UTC | 1h 40m |
| 2026-04-16 | BVR101 | - | Apr 16, 12:24 UTC | Apr 16, 13:05 UTC | 40m |
| 2026-04-15 | BVR101 | MUC → BER | Apr 15, 06:10 UTC | Apr 15, 06:55 UTC | 45m |
| 2026-04-15 | BVR101 | - | Apr 15, 04:15 UTC | Apr 15, 04:45 UTC | 30m |
About Mode-S
A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.
Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.
Prefer a tail-number view? See the D-ABAY page for operator, model, and routing details .