sensors Mode-S transponder
3E4601
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-IRSB · CESSNA 525 CitationJet
- Hex
- 3E4601
- Octal
- 17443001
- Decimal
- 4,081,153
- Country
- DE
- Tail
- D-IRSB
- Type
- C525
- Flights observed
- 68
- Distinct callsigns
- 9
- Country
- DE
- Last broadcast
- Jul 25, 18:30 UTC
Last known position
Country allocation
The ICAO 24-bit address 3E4601 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 9 distinct
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | PAV534H | - | Jul 25, 18:10 UTC | Jul 25, 18:30 UTC | 20m |
| 2026-07-25 | PAV533H | - | Jul 25, 16:50 UTC | Jul 25, 17:25 UTC | 35m |
| 2026-07-25 | PAV532H | - | Jul 25, 07:40 UTC | Jul 25, 09:00 UTC | 1h 20m |
| 2026-07-16 | PAV533H | - | Jul 16, 21:50 UTC | Jul 16, 22:59 UTC | 1h 10m |
| 2026-07-16 | PAV532H | - | Jul 16, 16:00 UTC | Jul 16, 16:35 UTC | 35m |
| 2026-07-16 | PAV531H | - | Jul 16, 14:45 UTC | Jul 16, 15:00 UTC | 15m |
| 2026-07-08 | PAV531H | - | Jul 8, 17:15 UTC | Jul 8, 17:30 UTC | 15m |
| 2026-07-06 | PAV533H | - | Jul 6, 23:55 UTC | Jul 7, 00:30 UTC | 35m |
| 2026-07-06 | PAV532H | - | Jul 6, 18:55 UTC | Jul 6, 20:05 UTC | 1h 10m |
| 2026-07-04 | PAV534H | - | Jul 4, 20:00 UTC | Jul 4, 20:15 UTC | 15m |
| 2026-07-04 | PAV533H | - | Jul 4, 18:10 UTC | Jul 4, 18:55 UTC | 45m |
| 2026-07-04 | PAV532H | - | Jul 4, 13:25 UTC | Jul 4, 14:15 UTC | 50m |
| 2026-07-04 | PAV531H | - | Jul 4, 12:20 UTC | Jul 4, 12:35 UTC | 15m |
| 2026-06-30 | PAV533H | - | Jun 30, 16:25 UTC | Jun 30, 17:30 UTC | 1h 5m |
| 2026-06-30 | PAV532H | - | Jun 30, 11:25 UTC | Jun 30, 12:30 UTC | 1h 5m |
| 2026-06-30 | PAV531H | - | Jun 30, 09:55 UTC | Jun 30, 10:15 UTC | 20m |
| 2026-06-30 | PAV533H | - | Jun 30, 02:10 UTC | Jun 30, 02:50 UTC | 40m |
| 2026-06-29 | PAV532H | - | Jun 29, 20:00 UTC | Jun 29, 20:44 UTC | 45m |
| 2026-06-29 | PAV531H | - | Jun 29, 18:39 UTC | Jun 29, 19:00 UTC | 20m |
| 2026-06-23 | PAV533H | - | Jun 23, 17:39 UTC | Jun 23, 18:50 UTC | 1h 10m |
| 2026-06-23 | PAV532H | - | Jun 23, 14:04 UTC | Jun 23, 14:44 UTC | 40m |
| 2026-06-23 | PAV531H | - | Jun 23, 12:45 UTC | Jun 23, 13:00 UTC | 15m |
| 2026-06-21 | PAV532H | - | Jun 21, 11:30 UTC | Jun 21, 12:35 UTC | 1h 5m |
| 2026-06-21 | PAV531H | - | Jun 21, 09:40 UTC | Jun 21, 10:29 UTC | 50m |
| 2026-06-18 | PAV533H | - | Jun 18, 18:50 UTC | Jun 18, 20:25 UTC | 1h 35m |
| 2026-06-18 | PAV532H | - | Jun 18, 15:55 UTC | Jun 18, 16:05 UTC | 10m |
| 2026-06-18 | PAV532H | - | Jun 18, 15:00 UTC | Jun 18, 15:50 UTC | 50m |
| 2026-06-18 | PAV531H | - | Jun 18, 14:01 UTC | Jun 18, 14:10 UTC | 10m |
| 2026-06-11 | PAV537 | - | Jun 11, 17:05 UTC | Jun 11, 17:25 UTC | 20m |
| 2026-06-11 | PAV531T | - | Jun 11, 07:05 UTC | Jun 11, 07:20 UTC | 15m |
| 2026-06-06 | PAV531 | - | Jun 6, 15:50 UTC | Jun 6, 16:39 UTC | 50m |
| 2026-06-05 | PAV531H | - | Jun 5, 06:35 UTC | Jun 5, 07:10 UTC | 35m |
| 2026-06-04 | PAV532H | - | Jun 4, 21:55 UTC | Jun 5, 00:35 UTC | 2h 40m |
| 2026-06-04 | PAV531H | - | Jun 4, 16:15 UTC | Jun 4, 18:15 UTC | 2h 0m |
| 2026-05-31 | PAV534H | - | May 31, 17:05 UTC | May 31, 17:20 UTC | 15m |
| 2026-05-30 | PAV532H | SVQ → BCN | May 30, 20:30 UTC | May 30, 22:20 UTC | 1h 50m |
| 2026-05-28 | PAV533H | - | May 28, 18:40 UTC | May 28, 20:30 UTC | 1h 50m |
| 2026-05-28 | PAV532H | - | May 28, 15:30 UTC | May 28, 16:50 UTC | 1h 20m |
| 2026-05-28 | PAV531H | - | May 28, 14:30 UTC | May 28, 14:40 UTC | 10m |
| 2026-05-20 | PAV531 | - | May 20, 17:00 UTC | May 20, 17:15 UTC | 15m |
| 2026-05-20 | PAV531T | - | May 20, 07:05 UTC | May 20, 07:20 UTC | 15m |
| 2026-05-14 | PAV533H | MAD → SVQ | May 14, 19:50 UTC | May 14, 20:55 UTC | 1h 5m |
| 2026-05-14 | PAV532H | - | May 14, 15:15 UTC | May 14, 15:55 UTC | 40m |
| 2026-05-14 | PAV531H | - | May 14, 14:15 UTC | May 14, 14:30 UTC | 15m |
| 2026-05-12 | PAV533H | BCN → SVQ | May 12, 17:50 UTC | May 12, 19:45 UTC | 1h 55m |
| 2026-05-12 | PAV532H | - | May 12, 13:25 UTC | May 12, 14:35 UTC | 1h 10m |
| 2026-05-12 | PAV531H | - | May 12, 12:30 UTC | May 12, 12:45 UTC | 15m |
| 2026-05-05 | PAV531H | - | May 5, 16:55 UTC | May 5, 17:10 UTC | 15m |
| 2026-05-05 | PAV533H | - | May 5, 00:05 UTC | May 5, 00:25 UTC | 20m |
| 2026-05-04 | PAV532H | - | May 4, 17:45 UTC | May 4, 18:05 UTC | 20m |
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-IRSB page for operator, model, and routing details .