Apparatus

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sensors Mode-S transponder

3C542E

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AEAN · AIRBUS A-300-600

Hex
3C542E
Octal
17052056
Decimal
3,953,710
Country
DE
Tail
D-AEAN
Type
A306
No current signal · last broadcast 11d ago
Flights observed
180
Distinct callsigns
20
Country
DE
Last broadcast
11d ago

Last known position

Most recent position reported by Mode-S 3C542E.

Country allocation

The ICAO 24-bit address 3C542E 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 20 distinct

Callsign Airline Flights Last seen
BCS73B - 8 2026-07-05
BCS5QC European Air Transport 7 2026-07-25
BCS5NR - 6 2026-07-16
BCS5709 - 6 2026-07-16
BCS5706 - 6 2026-07-16
BCS5547 - 6 2026-06-29
BCS5546 - 6 2026-06-29
BCS6GA European Air Transport 5 2026-07-23
BCS2FC - 5 2026-07-02
BCS202P - 5 2026-07-15
BCS1LG - 5 2026-07-02
BCS186 European Air Transport 5 2026-07-22
BCS5GU European Air Transport 4 2026-07-20
BCS57D - 4 2026-07-06
BCS3YK - 4 2026-07-06
BCS3LR European Air Transport 4 2026-07-21
BCS48B - 3 2026-07-09
BCS44C - 3 2026-07-10
BCS41E European Air Transport 3 2026-07-24
BCS2WP European Air Transport 3 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BCS13G FRA → LTN Jul 26, 16:50 UTCJul 26, 18:15 UTC1h 25m
2026-07-25 BCS6717 LTN → FRA Jul 25, 15:40 UTCJul 25, 16:45 UTC1h 5m
2026-07-25 BCS6740 BRU → LHR Jul 25, 12:55 UTCJul 25, 13:40 UTC45m
2026-07-25 BCS2885 DUB → BRU Jul 25, 08:00 UTCJul 25, 09:15 UTC1h 15m
2026-07-25 BCS5QC EMA → DUB Jul 25, 03:20 UTCJul 25, 05:05 UTC1h 45m
2026-07-24 BCS9YP FRA → LEJ Jul 24, 20:50 UTCJul 24, 21:30 UTC40m
2026-07-24 BCS6359 MAD → FRA Jul 24, 15:25 UTCJul 24, 17:35 UTC2h 10m
2026-07-24 BCS41E BRU → MAD Jul 24, 01:30 UTCJul 24, 03:20 UTC1h 50m
2026-07-23 BCS8AA MXP → BRU Jul 23, 22:20 UTCJul 23, 23:30 UTC1h 10m
2026-07-23 BCS844 LEJ → MXP Jul 23, 05:00 UTCJul 23, 05:25 UTC25m
2026-07-23 BCS6GA BRU → MXP Jul 23, 01:20 UTCJul 23, 03:00 UTC1h 40m
2026-07-22 BCS2UR MAD → BRU Jul 22, 20:25 UTCJul 22, 22:10 UTC1h 45m
2026-07-22 BCS6360 FRA → MAD Jul 22, 15:45 UTCJul 22, 17:50 UTC2h 5m
2026-07-22 BCS186 LEJ → FRA Jul 22, 02:25 UTCJul 22, 03:05 UTC40m
2026-07-21 BCS55K BCN → LEJ Jul 21, 20:00 UTCJul 21, 21:55 UTC1h 55m
2026-07-21 BCS3LR LEJ → LEJ Jul 21, 02:00 UTCJul 21, 04:00 UTC2h 0m
2026-07-20 BCS5GU AMS → LEJ Jul 20, 21:30 UTCJul 20, 22:25 UTC55m
2026-07-19 BCS21G LEJ → AMS Jul 19, 20:15 UTCJul 19, 21:15 UTC1h 0m
2026-07-19 BCS451 EMA → BRU Jul 19, 03:30 UTCJul 19, 04:50 UTC1h 20m
2026-07-17 BCS2MC DUB → EMA Jul 17, 20:25 UTCJul 17, 21:00 UTC35m
2026-07-17 BCS5QC EMA → DUB Jul 17, 02:34 UTCJul 17, 03:10 UTC35m
2026-07-16 BCS5NR MXP → EMA Jul 16, 22:45 UTCJul 17, 00:20 UTC1h 35m
2026-07-16 BCS5709 - Jul 16, 17:14 UTCJul 16, 19:14 UTC2h 0m
2026-07-16 BCS5706 LEJ → OTP Jul 16, 03:20 UTCJul 16, 04:55 UTC1h 35m
2026-07-15 BCS167 CGN → LEJ Jul 15, 21:05 UTCJul 15, 21:45 UTC40m
2026-07-15 BCS202P DUB → CGN Jul 15, 04:40 UTCJul 15, 06:05 UTC1h 25m
2026-07-15 BCS5QC EMA → DUB Jul 15, 02:10 UTCJul 15, 02:50 UTC40m
2026-07-14 BCS5NR MXP → EMA Jul 14, 22:30 UTCJul 15, 00:05 UTC1h 34m
2026-07-14 BCS5709 - Jul 14, 17:05 UTCJul 14, 19:05 UTC2h 0m
2026-07-14 BCS5706 LEJ → OTP Jul 14, 03:15 UTCJul 14, 04:50 UTC1h 35m
2026-07-13 BCS6TP BRU → LEJ Jul 13, 23:20 UTCJul 14, 00:05 UTC45m
2026-07-13 BCS810 LEJ → BRU Jul 13, 20:20 UTCJul 13, 21:25 UTC1h 5m
2026-07-12 BCS56W EMA → LEJ Jul 12, 10:01 UTCJul 12, 11:20 UTC1h 20m
2026-07-11 BCS4KN MXP → EMA Jul 11, 22:25 UTCJul 12, 00:01 UTC1h 35m
2026-07-11 BCS6GA - Jul 11, 06:05 UTCJul 11, 07:15 UTC1h 10m
2026-07-11 BCS55G LEJ → BRU Jul 11, 02:20 UTCJul 11, 03:20 UTC1h 0m
2026-07-10 BCS44C CPH → LEJ Jul 10, 21:20 UTCJul 10, 22:15 UTC55m
2026-07-10 BCS20A LEJ → CPH Jul 10, 02:05 UTCJul 10, 02:55 UTC50m
2026-07-09 BCS48B - Jul 9, 21:05 UTCJul 9, 22:15 UTC1h 10m
2026-07-09 BCS2EV LEJ → CDG Jul 9, 00:45 UTCJul 9, 01:50 UTC1h 5m
2026-07-08 BCS167 CGN → LEJ Jul 8, 21:10 UTCJul 8, 21:50 UTC40m
2026-07-08 BCS202P DUB → CGN Jul 8, 04:35 UTCJul 8, 06:05 UTC1h 30m
2026-07-08 BCS5QC EMA → DUB Jul 8, 02:25 UTCJul 8, 03:00 UTC35m
2026-07-07 BCS5NR MXP → EMA Jul 7, 22:15 UTCJul 7, 23:55 UTC1h 40m
2026-07-07 BCS5709 - Jul 7, 17:10 UTCJul 7, 19:10 UTC2h 0m
2026-07-07 BCS5706 LEJ → OTP Jul 7, 03:15 UTCJul 7, 04:55 UTC1h 40m
2026-07-06 BCS3YK OPO → LEJ Jul 6, 19:25 UTCJul 6, 22:00 UTC2h 35m
2026-07-06 BCS57D - Jul 6, 04:05 UTCJul 6, 04:55 UTC50m
2026-07-05 BCS73B - Jul 5, 21:35 UTCJul 5, 23:30 UTC1h 55m
2026-07-04 BCS861 MXP → LEJ Jul 4, 08:20 UTCJul 4, 09:30 UTC1h 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 D-AEAN page for operator, model, and routing details .

Mode-S 3C542E frequently asked

What is Mode-S code 3C542E?
3C542E is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AEAN.
Where is Mode-S 3C542E registered?
Mode-S code 3C542E is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C542E broadcasting right now?
No active broadcast right now. Last signal was 11d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C542E, octal 17052056, decimal 3,953,710.
What flights does 3C542E operate?
Mode-S 3C542E has broadcast 20 distinct callsigns, including BCS73B, BCS5QC, BCS5NR, BCS5709, BCS5706.