sensors Mode-S transponder

4D2444

ICAO 24-bit transponder address

Currently assigned to 9H-DGN · DIAMOND DA-62

Hex
4D2444
Octal
23222104
Decimal
5,055,556
Tail
9H-DGN
Type
DA62
No current signal · last broadcast 7d ago
Flights observed
32
Distinct callsigns
3
Country
-
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S 4D2444.

Callsign history 3 distinct

Callsign Airline Flights Last seen
OSPREY1 - 26 2026-07-22
EKT43 - 4 2026-06-19
EKT31 - 2 2026-07-17

Recent flights last 32

DateFlightRouteTakeoffLandingDuration
2026-07-22 OSPREY1 - Jul 22, 17:05 UTCJul 22, 17:20 UTC15m
2026-07-22 OSPREY1 - Jul 22, 00:00 UTCJul 22, 00:15 UTC15m
2026-07-21 OSPREY1 - Jul 21, 17:05 UTCJul 21, 17:25 UTC20m
2026-07-20 OSPREY1 - Jul 20, 10:55 UTCJul 20, 11:15 UTC20m
2026-07-17 EKT31 - Jul 17, 08:25 UTCJul 17, 10:00 UTC1h 35m
2026-07-13 EKT31 - Jul 13, 02:15 UTCJul 13, 04:50 UTC2h 35m
2026-07-11 OSPREY1 - Jul 11, 17:50 UTCJul 11, 18:05 UTC15m
2026-07-11 OSPREY1 - Jul 11, 14:10 UTCJul 11, 14:25 UTC15m
2026-07-10 OSPREY1 - Jul 10, 18:50 UTCJul 10, 19:05 UTC15m
2026-07-10 OSPREY1 - Jul 10, 15:10 UTCJul 10, 15:25 UTC15m
2026-07-08 OSPREY1 - Jul 8, 14:30 UTCJul 8, 14:50 UTC20m
2026-07-08 OSPREY1 - Jul 8, 11:55 UTCJul 8, 12:25 UTC30m
2026-07-06 OSPREY1 - Jul 6, 07:00 UTCJul 6, 07:15 UTC15m
2026-07-03 OSPREY1 - Jul 3, 14:40 UTCJul 3, 14:55 UTC15m
2026-07-03 OSPREY1 - Jul 3, 11:05 UTCJul 3, 11:25 UTC20m
2026-07-02 OSPREY1 - Jul 2, 18:30 UTCJul 2, 18:55 UTC25m
2026-07-02 OSPREY1 - Jul 2, 14:05 UTCJul 2, 14:25 UTC20m
2026-07-01 OSPREY1 - Jul 1, 11:15 UTCJul 1, 11:30 UTC15m
2026-06-26 OSPREY1 - Jun 26, 19:24 UTCJun 26, 19:35 UTC10m
2026-06-26 OSPREY1 - Jun 26, 14:05 UTCJun 26, 14:15 UTC10m
2026-06-25 OSPREY1 - Jun 25, 18:34 UTCJun 25, 18:50 UTC15m
2026-06-24 OSPREY1 - Jun 24, 18:34 UTCJun 24, 18:50 UTC15m
2026-06-24 OSPREY1 - Jun 24, 14:09 UTCJun 24, 14:24 UTC15m
2026-06-22 OSPREY1 - Jun 22, 08:44 UTCJun 22, 09:00 UTC15m
2026-06-19 EKT43 - Jun 19, 14:44 UTCJun 19, 16:19 UTC1h 35m
2026-06-19 EKT43 LMP → MLA Jun 19, 06:44 UTCJun 19, 07:39 UTC55m
2026-06-15 OSPREY1 - Jun 15, 11:10 UTCJun 15, 11:30 UTC20m
2026-06-14 OSPREY1 - Jun 14, 14:40 UTCJun 14, 16:00 UTC1h 20m
2026-06-14 OSPREY1 - Jun 14, 10:55 UTCJun 14, 11:10 UTC15m
2026-06-13 OSPREY1 - Jun 13, 04:40 UTCJun 13, 04:50 UTC10m
2026-06-12 EKT43 - Jun 12, 15:20 UTCJun 12, 16:05 UTC45m
2026-06-12 EKT43 MLA → MLA Jun 12, 13:45 UTCJun 12, 14:30 UTC45m

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 9H-DGN page for operator, model, and routing details .

Mode-S 4D2444 frequently asked

What is Mode-S code 4D2444?
4D2444 is an ICAO 24-bit transponder address. Assigned to 9H-DGN.
Is 4D2444 broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2444, octal 23222104, decimal 5,055,556.
What flights does 4D2444 operate?
Mode-S 4D2444 has broadcast 3 distinct callsigns, including OSPREY1, EKT43, EKT31.