Apparatus

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sensors Mode-S transponder

3E255E

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-IFIS · CESSNA 525A Citation CJ2

Hex
3E255E
Octal
17422536
Decimal
4,072,798
Country
DE
Tail
D-IFIS
Type
C25A
No current signal · last broadcast Jul 26, 09:50 UTC
Flights observed
176
Distinct callsigns
1
Country
DE
Last broadcast
Jul 26, 09:50 UTC

Last known position

Most recent position reported by Mode-S 3E255E.

Country allocation

The ICAO 24-bit address 3E255E 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 1 distinct

Callsign Airline Flights Last seen
MCK307 - 176 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 MCK307 - Jul 26, 08:15 UTCJul 26, 09:45 UTC1h 30m
2026-07-26 MCK307 - Jul 26, 06:50 UTCJul 26, 07:00 UTC10m
2026-07-25 MCK307 - Jul 25, 08:10 UTCJul 25, 10:55 UTC2h 45m
2026-07-24 MCK307 - Jul 24, 14:00 UTCJul 24, 16:45 UTC2h 45m
2026-07-24 MCK307 - Jul 24, 11:30 UTCJul 24, 12:25 UTC55m
2026-07-24 MCK307 - Jul 24, 07:35 UTCJul 24, 08:40 UTC1h 5m
2026-07-22 MCK307 - Jul 22, 15:00 UTCJul 22, 17:15 UTC2h 15m
2026-07-21 MCK307 - Jul 21, 17:05 UTCJul 21, 17:45 UTC40m
2026-07-21 MCK307 - Jul 21, 14:55 UTCJul 21, 15:40 UTC45m
2026-07-21 MCK307 IBZ → LCY Jul 21, 07:25 UTCJul 21, 09:45 UTC2h 20m
2026-07-20 MCK307 - Jul 20, 17:45 UTCJul 20, 20:00 UTC2h 15m
2026-07-20 MCK307 NCL → ANR Jul 20, 13:55 UTCJul 20, 17:10 UTC3h 15m
2026-07-19 MCK307 - Jul 19, 07:45 UTCJul 19, 09:45 UTC2h 0m
2026-07-19 MCK307 - Jul 19, 05:20 UTCJul 19, 06:45 UTC1h 25m
2026-07-17 MCK307 - Jul 17, 21:39 UTCJul 17, 23:00 UTC1h 20m
2026-07-17 MCK307 - Jul 17, 12:19 UTCJul 17, 14:15 UTC1h 55m
2026-07-15 MCK307 - Jul 15, 09:15 UTCJul 15, 11:30 UTC2h 15m
2026-07-14 MCK307 LCY → NCE Jul 14, 12:15 UTCJul 14, 14:10 UTC1h 55m
2026-07-14 MCK307 NCE → LCY Jul 14, 06:15 UTCJul 14, 08:00 UTC1h 45m
2026-07-13 MCK307 - Jul 13, 12:15 UTCJul 13, 13:00 UTC45m
2026-07-13 MCK307 - Jul 13, 11:05 UTCJul 13, 11:30 UTC25m
2026-07-13 MCK307 LCY → NCE Jul 13, 08:20 UTCJul 13, 10:05 UTC1h 45m
2026-07-12 MCK307 - Jul 12, 09:35 UTCJul 12, 11:40 UTC2h 5m
2026-07-11 MCK307 - Jul 11, 16:10 UTCJul 11, 16:45 UTC35m
2026-07-11 MCK307 - Jul 11, 10:55 UTCJul 11, 11:50 UTC55m
2026-07-11 MCK307 - Jul 11, 07:45 UTCJul 11, 09:20 UTC1h 35m
2026-07-10 MCK307 - Jul 10, 17:15 UTCJul 10, 18:45 UTC1h 30m
2026-07-10 MCK307 - Jul 10, 15:50 UTCJul 10, 16:35 UTC45m
2026-07-10 MCK307 - Jul 10, 13:20 UTCJul 10, 13:50 UTC30m
2026-07-10 MCK307 - Jul 10, 09:30 UTCJul 10, 11:05 UTC1h 35m
2026-07-10 MCK307 - Jul 10, 08:20 UTCJul 10, 08:40 UTC20m
2026-07-09 MCK307 LIN → SZG Jul 9, 19:15 UTCJul 9, 20:00 UTC45m
2026-07-09 MCK307 - Jul 9, 17:45 UTCJul 9, 18:30 UTC45m
2026-07-09 MCK307 - Jul 9, 08:55 UTCJul 9, 09:30 UTC35m
2026-07-09 MCK307 BCN → CEQ Jul 9, 06:30 UTCJul 9, 07:30 UTC1h 0m
2026-07-08 MCK307 TRS → BCN Jul 8, 10:20 UTCJul 8, 12:00 UTC1h 40m
2026-07-08 MCK307 GRZ → TRS Jul 8, 08:40 UTCJul 8, 09:05 UTC25m
2026-07-07 MCK307 LCY → GRZ Jul 7, 15:10 UTCJul 7, 16:55 UTC1h 45m
2026-07-07 MCK307 GRZ → LCY Jul 7, 07:00 UTCJul 7, 09:05 UTC2h 5m
2026-07-06 MCK307 - Jul 6, 18:35 UTCJul 6, 19:25 UTC50m
2026-07-06 MCK307 - Jul 6, 12:55 UTCJul 6, 15:30 UTC2h 35m
2026-07-05 MCK307 BQH → FAO Jul 5, 18:20 UTCJul 5, 21:05 UTC2h 45m
2026-07-05 MCK307 - Jul 5, 15:50 UTCJul 5, 16:35 UTC45m
2026-07-05 MCK307 - Jul 5, 14:15 UTCJul 5, 15:10 UTC55m
2026-07-04 MCK307 - Jul 4, 12:50 UTCJul 4, 14:05 UTC1h 15m
2026-07-04 MCK307 - Jul 4, 10:15 UTCJul 4, 11:40 UTC1h 25m
2026-07-03 MCK307 - Jul 3, 15:25 UTCJul 3, 17:30 UTC2h 5m
2026-07-01 MCK307 - Jul 1, 08:55 UTCJul 1, 11:05 UTC2h 10m
2026-06-30 MCK307 CEQ → BSL Jun 30, 18:10 UTCJun 30, 19:10 UTC1h 0m
2026-06-30 MCK307 - Jun 30, 14:10 UTCJun 30, 15:00 UTC50m

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-IFIS page for operator, model, and routing details .

Mode-S 3E255E frequently asked

What is Mode-S code 3E255E?
3E255E is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-IFIS.
Where is Mode-S 3E255E registered?
Mode-S code 3E255E is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E255E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 09:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E255E, octal 17422536, decimal 4,072,798.
What flights does 3E255E operate?
Mode-S 3E255E has broadcast 1 distinct callsign, including MCK307.