sensors Mode-S transponder
440142
ICAO 24-bit transponder address · allocated to Austria
Currently assigned to OE-HMF · GULFSTREAM G200
- Hex
- 440142
- Octal
- 21000502
- Decimal
- 4,456,770
- Country
- AT
- Tail
- OE-HMF
- Type
- GALX
- Flights observed
- 36
- Distinct callsigns
- 1
- Country
- AT
- Last broadcast
- 19h ago
Last known position
Country allocation
The ICAO 24-bit address 440142 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 |
|---|---|---|---|
| MJF2F | - | 36 | 2026-07-24 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | MJF2F | - | Jul 24, 14:40 UTC | Jul 24, 15:40 UTC | 1h 0m |
| 2026-07-24 | MJF2F | EDI → BHX | Jul 24, 12:30 UTC | Jul 24, 13:20 UTC | 50m |
| 2026-07-23 | MJF2F | RIX → EDI | Jul 23, 13:25 UTC | Jul 23, 15:50 UTC | 2h 25m |
| 2026-07-22 | MJF2F | GVA → RIX | Jul 22, 17:40 UTC | Jul 22, 20:05 UTC | 2h 25m |
| 2026-07-22 | MJF2F | - | Jul 22, 13:35 UTC | Jul 22, 15:30 UTC | 1h 55m |
| 2026-07-22 | MJF2F | - | Jul 22, 11:10 UTC | Jul 22, 12:40 UTC | 1h 30m |
| 2026-07-21 | MJF2F | - | Jul 21, 16:40 UTC | Jul 21, 17:30 UTC | 50m |
| 2026-07-19 | MJF2F | - | Jul 19, 09:05 UTC | Jul 19, 10:55 UTC | 1h 50m |
| 2026-07-18 | MJF2F | - | Jul 18, 12:20 UTC | Jul 18, 12:40 UTC | 20m |
| 2026-07-17 | MJF2F | - | Jul 17, 18:25 UTC | Jul 17, 19:40 UTC | 1h 15m |
| 2026-07-17 | MJF2F | - | Jul 17, 12:55 UTC | Jul 17, 14:24 UTC | 1h 30m |
| 2026-07-17 | MJF2F | - | Jul 17, 08:59 UTC | Jul 17, 10:15 UTC | 1h 15m |
| 2026-07-15 | MJF2F | - | Jul 15, 10:35 UTC | Jul 15, 12:40 UTC | 2h 5m |
| 2026-07-14 | MJF2F | - | Jul 14, 12:35 UTC | Jul 14, 14:25 UTC | 1h 50m |
| 2026-07-04 | MJF2F | NCE → ACH | Jul 4, 16:00 UTC | Jul 4, 16:45 UTC | 45m |
| 2026-07-04 | MJF2F | - | Jul 4, 13:45 UTC | Jul 4, 15:10 UTC | 1h 25m |
| 2026-07-03 | MJF2F | - | Jul 3, 08:15 UTC | Jul 3, 09:35 UTC | 1h 20m |
| 2026-07-02 | MJF2F | - | Jul 2, 08:35 UTC | Jul 2, 09:45 UTC | 1h 10m |
| 2026-06-30 | MJF2F | - | Jun 30, 08:25 UTC | Jun 30, 09:10 UTC | 45m |
| 2026-06-29 | MJF2F | - | Jun 29, 14:19 UTC | Jun 29, 15:30 UTC | 1h 10m |
| 2026-06-29 | MJF2F | - | Jun 29, 10:10 UTC | Jun 29, 11:50 UTC | 1h 40m |
| 2026-06-29 | MJF2F | - | Jun 29, 08:09 UTC | Jun 29, 08:44 UTC | 35m |
| 2026-06-23 | MJF2F | - | Jun 23, 11:49 UTC | Jun 23, 12:25 UTC | 35m |
| 2026-06-22 | MJF2F | - | Jun 22, 09:40 UTC | Jun 22, 12:05 UTC | 2h 25m |
| 2026-06-17 | MJF2F | - | Jun 17, 11:20 UTC | Jun 17, 12:10 UTC | 50m |
| 2026-06-17 | MJF2F | - | Jun 17, 08:00 UTC | Jun 17, 08:20 UTC | 20m |
| 2026-06-16 | MJF2F | - | Jun 16, 09:30 UTC | Jun 16, 09:50 UTC | 20m |
| 2026-06-15 | MJF2F | - | Jun 15, 14:40 UTC | Jun 15, 15:40 UTC | 1h 0m |
| 2026-06-15 | MJF2F | - | Jun 15, 12:00 UTC | Jun 15, 13:45 UTC | 1h 45m |
| 2026-06-14 | MJF2F | - | Jun 14, 15:05 UTC | Jun 14, 16:10 UTC | 1h 5m |
| 2026-06-11 | MJF2F | - | Jun 11, 15:15 UTC | Jun 11, 15:45 UTC | 30m |
| 2026-06-10 | MJF2F | - | Jun 10, 07:55 UTC | Jun 10, 10:10 UTC | 2h 15m |
| 2026-06-09 | MJF2F | - | Jun 9, 16:45 UTC | Jun 9, 17:00 UTC | 15m |
| 2026-06-09 | MJF2F | - | Jun 9, 15:20 UTC | Jun 9, 15:50 UTC | 30m |
| 2026-04-27 | MJF2F | VIE → HAJ | Apr 27, 18:55 UTC | Apr 27, 20:00 UTC | 1h 5m |
| 2026-04-22 | MJF2F | - | Apr 22, 18:00 UTC | Apr 22, 19:10 UTC | 1h 10m |
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-HMF page for operator, model, and routing details .