sensors Mode-S transponder
440D43
ICAO 24-bit transponder address · allocated to Austria
Currently assigned to OE-EMH · SOCATA TBM-700A/B/C
- Hex
- 440D43
- Octal
- 21006503
- Decimal
- 4,459,843
- Country
- AT
- Tail
- OE-EMH
- Type
- TBM7
- Flights observed
- 29
- Distinct callsigns
- 1
- Country
- AT
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 440D43 falls within the block assigned to Austria (AT) by ICAO Annex 10, Volume III. Every aircraft registered in Austria 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| OEEMH | - | 29 | 2026-07-23 |
Recent flights last 29
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-23 | OEEMH | - | Jul 23, 06:00 UTC | Jul 23, 06:45 UTC | 45m |
| 2026-07-22 | OEEMH | - | Jul 22, 14:45 UTC | Jul 22, 15:55 UTC | 1h 10m |
| 2026-07-02 | OEEMH | - | Jul 2, 14:50 UTC | Jul 2, 16:20 UTC | 1h 30m |
| 2026-07-02 | OEEMH | - | Jul 2, 05:05 UTC | Jul 2, 06:30 UTC | 1h 25m |
| 2026-06-30 | OEEMH | - | Jun 30, 15:05 UTC | Jun 30, 16:10 UTC | 1h 5m |
| 2026-06-30 | OEEMH | - | Jun 30, 04:20 UTC | Jun 30, 05:20 UTC | 1h 0m |
| 2026-06-24 | OEEMH | - | Jun 24, 13:14 UTC | Jun 24, 14:00 UTC | 45m |
| 2026-06-24 | OEEMH | - | Jun 24, 04:34 UTC | Jun 24, 05:20 UTC | 45m |
| 2026-06-19 | OEEMH | - | Jun 19, 07:54 UTC | Jun 19, 09:30 UTC | 1h 35m |
| 2026-06-18 | OEEMH | - | Jun 18, 04:35 UTC | Jun 18, 06:15 UTC | 1h 40m |
| 2026-06-17 | OEEMH | - | Jun 17, 08:30 UTC | Jun 17, 09:15 UTC | 45m |
| 2026-06-17 | OEEMH | - | Jun 17, 06:30 UTC | Jun 17, 07:15 UTC | 45m |
| 2026-06-15 | OEEMH | - | Jun 15, 09:30 UTC | Jun 15, 10:20 UTC | 50m |
| 2026-06-15 | OEEMH | - | Jun 15, 07:29 UTC | Jun 15, 08:29 UTC | 1h 0m |
| 2026-06-12 | OEEMH | - | Jun 12, 13:20 UTC | Jun 12, 14:50 UTC | 1h 30m |
| 2026-06-12 | OEEMH | - | Jun 12, 05:05 UTC | Jun 12, 06:25 UTC | 1h 20m |
| 2026-06-09 | OEEMH | - | Jun 9, 14:05 UTC | Jun 9, 15:25 UTC | 1h 20m |
| 2026-05-27 | OEEMH | - | May 27, 13:50 UTC | May 27, 14:40 UTC | 50m |
| 2026-05-27 | OEEMH | - | May 27, 04:19 UTC | May 27, 05:09 UTC | 50m |
| 2026-05-20 | OEEMH | - | May 20, 15:05 UTC | May 20, 16:45 UTC | 1h 40m |
| 2026-05-19 | OEEMH | - | May 19, 15:45 UTC | May 19, 17:20 UTC | 1h 35m |
| 2026-05-06 | OEEMH | - | May 6, 15:10 UTC | May 6, 16:25 UTC | 1h 15m |
| 2026-05-06 | OEEMH | - | May 6, 05:05 UTC | May 6, 06:05 UTC | 1h 0m |
| 2026-05-05 | OEEMH | - | May 5, 13:40 UTC | May 5, 14:30 UTC | 50m |
| 2026-05-05 | OEEMH | - | May 5, 04:15 UTC | May 5, 05:10 UTC | 55m |
| 2026-04-26 | OEEMH | - | Apr 26, 07:55 UTC | Apr 26, 08:55 UTC | 1h 0m |
| 2026-04-25 | OEEMH | - | Apr 25, 05:10 UTC | Apr 25, 06:15 UTC | 1h 5m |
| 2026-04-23 | OEEMH | - | Apr 23, 16:15 UTC | Apr 23, 16:55 UTC | 40m |
| 2026-04-23 | OEEMH | - | Apr 23, 05:30 UTC | Apr 23, 06:20 UTC | 50m |
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 OE-EMH page for operator, model, and routing details .