sensors Mode-S transponder
3C171B
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-AXTM · BOMBARDIER BD-700 Global 6000/6500
- Hex
- 3C171B
- Octal
- 17013433
- Decimal
- 3,938,075
- Country
- DE
- Tail
- D-AXTM
- Type
- GLEX
- Flights observed
- 36
- Distinct callsigns
- 14
- Country
- DE
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address 3C171B 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| IFA6223 | - | 6 | 2026-04-17 |
| DAXTM | - | 5 | 2026-05-13 |
| IFA6338 | - | 3 | 2026-05-30 |
| IFA6321 | - | 3 | 2026-05-17 |
| IFA6227 | - | 3 | 2026-05-04 |
| IFA6314 | - | 2 | 2026-05-14 |
| IFA6306 | - | 2 | 2026-06-02 |
| IFA6298 | - | 2 | 2026-05-24 |
| IFA6289 | - | 2 | 2026-05-23 |
| IFA6269 | - | 2 | 2026-04-30 |
| IFA6177 | - | 2 | 2026-05-18 |
| IFA6083 | - | 2 | 2026-04-27 |
| IFA6286 | - | 1 | 2026-05-07 |
| IFA227 | - | 1 | 2026-06-01 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | IFA6306 | - | Jun 2, 12:50 UTC | Jun 2, 18:45 UTC | 5h 55m |
| 2026-06-02 | IFA6306 | NUE → LBG | Jun 2, 10:00 UTC | Jun 2, 11:05 UTC | 1h 5m |
| 2026-06-01 | IFA227 | LTN → NUE | Jun 1, 07:35 UTC | Jun 1, 09:05 UTC | 1h 30m |
| 2026-05-30 | IFA6338 | - | May 30, 02:10 UTC | May 30, 12:05 UTC | 9h 55m |
| 2026-05-25 | IFA6338 | - | May 25, 10:50 UTC | May 25, 21:09 UTC | 10h 20m |
| 2026-05-25 | IFA6338 | AMS → LTN | May 25, 08:30 UTC | May 25, 09:20 UTC | 50m |
| 2026-05-24 | IFA6298 | - | May 24, 23:15 UTC | May 25, 06:05 UTC | 6h 50m |
| 2026-05-24 | IFA6298 | - | May 24, 20:10 UTC | May 24, 20:30 UTC | 20m |
| 2026-05-23 | IFA6289 | - | May 23, 19:05 UTC | May 24, 04:20 UTC | 9h 15m |
| 2026-05-23 | IFA6289 | NUE → AMS | May 23, 06:10 UTC | May 23, 07:10 UTC | 1h 0m |
| 2026-05-18 | IFA6177 | - | May 18, 17:35 UTC | May 18, 18:45 UTC | 1h 9m |
| 2026-05-18 | IFA6177 | - | May 18, 04:40 UTC | May 18, 14:00 UTC | 9h 20m |
| 2026-05-17 | IFA6321 | - | May 17, 14:10 UTC | May 17, 16:15 UTC | 2h 5m |
| 2026-05-16 | IFA6321 | MAD → RST | May 16, 08:16 UTC | May 16, 17:01 UTC | 8h 45m |
| 2026-05-15 | IFA6321 | - | May 15, 14:40 UTC | May 15, 16:20 UTC | 1h 39m |
| 2026-05-14 | IFA6314 | - | May 14, 20:25 UTC | May 14, 22:15 UTC | 1h 50m |
| 2026-05-13 | IFA6314 | - | May 13, 20:50 UTC | May 14, 20:45 UTC | 23h 55m |
| 2026-05-13 | DAXTM | - | May 13, 20:35 UTC | May 13, 20:55 UTC | 20m |
| 2026-05-13 | DAXTM | - | May 13, 01:30 UTC | May 13, 20:55 UTC | 19h 25m |
| 2026-05-12 | DAXTM | - | May 12, 17:25 UTC | May 13, 01:40 UTC | 8h 15m |
| 2026-05-10 | DAXTM | - | May 10, 07:19 UTC | May 10, 09:00 UTC | 1h 40m |
| 2026-05-08 | DAXTM | - | May 8, 15:25 UTC | May 8, 16:40 UTC | 1h 15m |
| 2026-05-07 | IFA6286 | LIN → LTN | May 7, 14:30 UTC | May 7, 16:00 UTC | 1h 30m |
| 2026-05-04 | IFA6227 | - | May 4, 07:55 UTC | May 4, 09:20 UTC | 1h 25m |
| 2026-05-04 | IFA6227 | - | May 4, 05:35 UTC | May 4, 07:10 UTC | 1h 35m |
| 2026-05-02 | IFA6227 | - | May 2, 15:50 UTC | May 2, 16:05 UTC | 15m |
| 2026-04-30 | IFA6269 | - | Apr 30, 23:25 UTC | May 1, 05:10 UTC | 5h 45m |
| 2026-04-29 | IFA6269 | - | Apr 29, 15:25 UTC | Apr 29, 19:35 UTC | 4h 10m |
| 2026-04-27 | IFA6083 | - | Apr 27, 11:55 UTC | Apr 27, 19:20 UTC | 7h 25m |
| 2026-04-27 | IFA6083 | LYS → LBG | Apr 27, 09:15 UTC | Apr 27, 10:05 UTC | 50m |
| 2026-04-17 | IFA6223 | - | Apr 17, 21:25 UTC | Apr 17, 21:35 UTC | 10m |
| 2026-04-17 | IFA6223 | - | Apr 17, 19:30 UTC | Apr 17, 21:20 UTC | 1h 50m |
| 2026-04-17 | IFA6223 | - | Apr 17, 18:05 UTC | Apr 17, 18:35 UTC | 30m |
| 2026-04-17 | IFA6223 | - | Apr 17, 16:05 UTC | Apr 17, 17:15 UTC | 1h 10m |
| 2026-04-17 | IFA6223 | - | Apr 17, 11:25 UTC | Apr 17, 12:55 UTC | 1h 30m |
| 2026-04-17 | IFA6223 | - | Apr 17, 09:20 UTC | Apr 17, 11:15 UTC | 1h 55m |
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-AXTM page for operator, model, and routing details .