Apparatus

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sensors Mode-S transponder

4CAE28

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-LDH · AIRBUS A-300-600

Hex
4CAE28
Octal
23127050
Decimal
5,025,320
Country
IE
Tail
EI-LDH
Type
A306
No current signal · last broadcast 25d ago
Flights observed
97
Distinct callsigns
20
Country
IE
Last broadcast
25d ago

Last known position

Most recent position reported by Mode-S 4CAE28.

Country allocation

The ICAO 24-bit address 4CAE28 falls within the block assigned to Ireland (IE) by ICAO Annex 10, Volume III. Every aircraft registered in Ireland 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
BCS1YM - 8 2026-07-22
BCS7YL - 6 2026-07-08
BCS76K European Air Transport 6 2026-07-23
BCS7078 - 6 2026-07-08
BCS5572 - 6 2026-07-22
BCS3XV European Air Transport 6 2026-07-23
BCS59X European Air Transport 5 2026-07-24
BCS4214 - 5 2026-07-01
BCS6VC - 4 2026-07-01
BCS5571 - 4 2026-07-14
BCS44C - 4 2026-07-06
BCS24J European Air Transport 4 2026-07-24
BCS50Q - 3 2026-07-16
BCS33G - 3 2026-06-19
BCS26N - 3 2026-06-19
BCS9CG - 2 2026-07-10
BCS8EL European Air Transport 2 2026-06-01
BCS87L - 2 2026-07-05
BCS4VA - 2 2026-07-10
BCS3612 European Air Transport 2 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 BCS59X LYS → LEJ Jul 24, 20:45 UTCJul 24, 22:05 UTC1h 20m
2026-07-24 BCS24J LEJ → LYS Jul 24, 02:30 UTCJul 24, 03:30 UTC1h 0m
2026-07-23 BCS3XV BUD → LEJ Jul 23, 19:55 UTCJul 23, 20:55 UTC1h 0m
2026-07-23 BCS76K LEJ → BUD Jul 23, 03:35 UTCJul 23, 04:30 UTC55m
2026-07-22 BCS1YM BRQ → LEJ Jul 22, 20:20 UTCJul 22, 21:05 UTC45m
2026-07-22 BSS5571 - Jul 22, 04:45 UTCJul 22, 05:05 UTC20m
2026-07-22 BCS5572 - Jul 22, 02:55 UTCJul 22, 03:40 UTC45m
2026-07-21 BCS3XV BUD → LEJ Jul 21, 19:50 UTCJul 21, 20:50 UTC1h 0m
2026-07-21 BCS76K LEJ → BUD Jul 21, 03:35 UTCJul 21, 04:40 UTC1h 5m
2026-07-21 BCS59X - Jul 21, 00:05 UTCJul 21, 00:25 UTC20m
2026-07-20 BCS59X LYS → LEJ Jul 20, 20:45 UTCJul 20, 22:05 UTC1h 20m
2026-07-20 BCS24J LEJ → LYS Jul 20, 00:35 UTCJul 20, 01:45 UTC1h 10m
2026-07-17 BCS169 CGN → LEJ Jul 17, 22:20 UTCJul 17, 23:05 UTC45m
2026-07-17 BCS202P LEJ → CGN Jul 17, 19:35 UTCJul 17, 20:15 UTC40m
2026-07-17 BCS855 BTS → LEJ Jul 17, 09:50 UTCJul 17, 10:40 UTC50m
2026-07-16 BCS50Q LEJ → BTS Jul 16, 02:40 UTCJul 16, 03:25 UTC45m
2026-07-15 BCS3XV - Jul 15, 20:10 UTCJul 15, 21:25 UTC1h 15m
2026-07-15 BCS76K LEJ → BUD Jul 15, 03:50 UTCJul 15, 04:45 UTC55m
2026-07-14 BCS1YM BRQ → LEJ Jul 14, 20:45 UTCJul 14, 21:30 UTC45m
2026-07-14 BCS5571 - Jul 14, 05:00 UTCJul 14, 05:15 UTC15m
2026-07-14 BCS5572 - Jul 14, 03:05 UTCJul 14, 03:45 UTC40m
2026-07-13 BCS1YM BRQ → LEJ Jul 13, 20:25 UTCJul 13, 21:10 UTC45m
2026-07-13 BCS2KK LEJ → BRQ Jul 13, 01:50 UTCJul 13, 02:30 UTC40m
2026-07-10 BCS4VA ARN → LEJ Jul 10, 19:20 UTCJul 10, 20:40 UTC1h 20m
2026-07-10 BCS9CG LEJ → ARN Jul 10, 03:05 UTCJul 10, 04:30 UTC1h 25m
2026-07-09 BCS3XV BUD → LEJ Jul 9, 19:55 UTCJul 9, 21:00 UTC1h 5m
2026-07-09 BCS76K LEJ → BUD Jul 9, 03:35 UTCJul 9, 04:40 UTC1h 5m
2026-07-08 BCS7YL - Jul 8, 19:45 UTCJul 8, 21:25 UTC1h 40m
2026-07-08 BCS7078 LEJ → CIA Jul 8, 03:45 UTCJul 8, 05:05 UTC1h 20m
2026-07-07 BCS13J BTS → LEJ Jul 7, 20:15 UTCJul 7, 21:15 UTC1h 0m
2026-07-07 BCS50Q LEJ → BTS Jul 7, 02:55 UTCJul 7, 03:45 UTC50m
2026-07-06 BCS44C CPH → LEJ Jul 6, 21:20 UTCJul 6, 22:10 UTC50m
2026-07-05 BCS87L LEJ → CPH Jul 5, 22:05 UTCJul 5, 22:55 UTC50m
2026-07-03 BCS1YM BRQ → LEJ Jul 3, 20:20 UTCJul 3, 21:10 UTC50m
2026-07-03 BCS5571 - Jul 3, 05:25 UTCJul 3, 05:45 UTC20m
2026-07-03 BCS5572 - Jul 3, 03:15 UTCJul 3, 04:00 UTC45m
2026-07-02 BCS3XV - Jul 2, 19:50 UTCJul 2, 20:50 UTC1h 0m
2026-07-02 BCS76K LEJ → BUD Jul 2, 03:55 UTCJul 2, 05:00 UTC1h 5m
2026-07-01 BCS6VC STR → LEJ Jul 1, 20:15 UTCJul 1, 21:05 UTC50m
2026-07-01 BCS4214 LEJ → STR Jul 1, 03:40 UTCJul 1, 04:25 UTC45m
2026-06-30 BCS7YL - Jun 30, 19:55 UTCJun 30, 21:30 UTC1h 35m
2026-06-30 BCS7078 LEJ → CIA Jun 30, 03:40 UTCJun 30, 05:05 UTC1h 25m
2026-06-29 BCS44C CPH → LEJ Jun 29, 21:19 UTCJun 29, 22:10 UTC50m
2026-06-28 BCS87L LEJ → CPH Jun 28, 22:04 UTCJun 28, 22:55 UTC50m
2026-06-27 BCS853 - Jun 27, 10:40 UTCJun 27, 11:20 UTC40m
2026-06-26 BCS4214 LEJ → STR Jun 26, 03:50 UTCJun 26, 04:34 UTC45m
2026-06-25 BCS7YL - Jun 25, 19:39 UTCJun 25, 21:15 UTC1h 35m
2026-06-25 BCS7078 LEJ → CIA Jun 25, 03:44 UTCJun 25, 05:09 UTC1h 25m
2026-06-24 BCS7YL - Jun 24, 19:44 UTCJun 24, 21:19 UTC1h 35m
2026-06-24 BCS7078 LEJ → CIA Jun 24, 03:50 UTCJun 24, 05:09 UTC1h 20m

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 EI-LDH page for operator, model, and routing details .

Mode-S 4CAE28 frequently asked

What is Mode-S code 4CAE28?
4CAE28 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-LDH.
Where is Mode-S 4CAE28 registered?
Mode-S code 4CAE28 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE28 broadcasting right now?
No active broadcast right now. Last signal was 25d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE28, octal 23127050, decimal 5,025,320.
What flights does 4CAE28 operate?
Mode-S 4CAE28 has broadcast 20 distinct callsigns, including BCS1YM, BCS7YL, BCS76K, BCS7078, BCS5572.