Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CAEBB

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-KFB · AIRBUS A-320neo

Hex
4CAEBB
Octal
23127273
Decimal
5,025,467
Country
IE
Tail
EI-KFB
Type
A20N
No current signal · last broadcast 14d ago
Flights observed
100
Distinct callsigns
20
Country
IE
Last broadcast
14d ago

Last known position

Most recent position reported by Mode-S 4CAEBB.

Country allocation

The ICAO 24-bit address 4CAEBB 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
AYN7951 - 7 2026-06-11
AYN7906 - 7 2026-07-16
AYN7905 - 7 2026-07-16
AYN7078 - 6 2026-07-25
AYN7952 - 5 2026-06-11
AYN7817 - 5 2026-06-29
AYN7675 - 5 2026-06-28
AYN7111 - 5 2026-05-27
AYN7372 - 4 2026-07-11
AYN7077 - 4 2026-07-24
AYN7371 - 3 2026-06-05
AYN7112 - 3 2026-05-27
AYN7962 - 2 2026-07-12
AYN7875 - 2 2026-06-25
AYN7819 - 2 2026-06-26
AYN7818 - 2 2026-06-29
AYN7729 - 2 2026-06-30
AYN7606 - 2 2026-07-03
AYN7351 - 2 2026-06-13
AYN7154 - 2 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 AYN7154 - Jul 25, 17:20 UTCJul 25, 17:40 UTC20m
2026-07-25 AYN7078 KUT → PLX Jul 25, 09:20 UTCJul 25, 16:30 UTC7h 10m
2026-07-24 AYN7077 - Jul 24, 13:10 UTCJul 25, 08:25 UTC19h 15m
2026-07-24 AYN7153 - Jul 24, 11:40 UTCJul 24, 12:10 UTC30m
2026-07-16 AYN7906 - Jul 16, 07:30 UTCJul 16, 08:15 UTC45m
2026-07-16 AYN7905 - Jul 16, 06:10 UTCJul 16, 06:25 UTC15m
2026-07-15 AYN7906 - Jul 15, 07:35 UTCJul 15, 08:20 UTC45m
2026-07-15 AYN7905 - Jul 15, 06:00 UTCJul 15, 06:15 UTC15m
2026-07-13 AYN7906 - Jul 13, 08:10 UTCJul 13, 08:50 UTC40m
2026-07-13 AYN7905 - Jul 13, 06:50 UTCJul 13, 07:10 UTC20m
2026-07-12 AYN7962 - Jul 12, 16:20 UTCJul 12, 21:00 UTC4h 40m
2026-07-11 AYN7372 - Jul 11, 15:40 UTCJul 11, 16:05 UTC25m
2026-07-11 AYN7906 - Jul 11, 08:01 UTCJul 11, 14:40 UTC6h 40m
2026-07-11 AYN7905 - Jul 11, 06:30 UTCJul 11, 06:55 UTC25m
2026-07-07 AYN7962 - Jul 7, 16:10 UTCJul 7, 21:50 UTC5h 40m
2026-07-04 AYN7476 - Jul 4, 12:15 UTCJul 4, 14:05 UTC1h 50m
2026-07-03 AYN7475 - Jul 3, 18:35 UTCJul 4, 10:55 UTC16h 20m
2026-07-03 AYN7606 - Jul 3, 07:30 UTCJul 3, 22:30 UTC15h 0m
2026-07-02 AYN7994 KUT → KUT Jul 2, 20:10 UTCJul 3, 06:25 UTC10h 15m
2026-07-02 AYN7993 - Jul 2, 18:05 UTCJul 2, 19:10 UTC1h 5m
2026-07-01 AYN7606 - Jul 1, 09:30 UTCJul 1, 10:10 UTC40m
2026-07-01 AYN7605 - Jul 1, 08:10 UTCJul 1, 08:35 UTC25m
2026-06-30 AYN7730 - Jun 30, 07:00 UTCJun 30, 22:05 UTC15h 5m
2026-06-30 AYN7729 - Jun 30, 05:20 UTCJun 30, 05:35 UTC15m
2026-06-29 AYN7818 - Jun 29, 09:05 UTCJun 29, 10:59 UTC1h 55m
2026-06-29 AYN7817 - Jun 29, 05:40 UTCJun 29, 07:59 UTC2h 20m
2026-06-28 AYN7817 - Jun 28, 09:20 UTCJun 29, 07:59 UTC22h 40m
2026-06-28 AYN7675 - Jun 28, 05:40 UTCJun 28, 07:54 UTC2h 15m
2026-06-27 AYN7675 - Jun 27, 09:44 UTCJun 28, 07:54 UTC22h 10m
2026-06-27 AYN7729 - Jun 27, 05:29 UTCJun 27, 05:44 UTC15m
2026-06-26 AYN7819 - Jun 26, 06:19 UTCJun 26, 11:55 UTC5h 35m
2026-06-25 AYN7819 - Jun 25, 12:50 UTCJun 26, 11:55 UTC23h 5m
2026-06-25 AYN7876 - Jun 25, 11:25 UTCJun 26, 10:30 UTC23h 5m
2026-06-25 AYN7875 - Jun 25, 07:19 UTCJun 25, 10:04 UTC2h 45m
2026-06-24 AYN7875 - Jun 24, 12:04 UTCJun 25, 10:04 UTC22h 0m
2026-06-18 AYN7078 - Jun 18, 06:30 UTCJun 18, 07:15 UTC45m
2026-06-18 AYN7077 - Jun 18, 05:10 UTCJun 18, 05:25 UTC15m
2026-06-17 AYN7152 - Jun 17, 09:10 UTCJun 17, 09:35 UTC25m
2026-06-17 AYN7151 - Jun 17, 07:45 UTCJun 17, 08:15 UTC30m
2026-06-15 AYN7818 - Jun 15, 09:30 UTCJun 15, 11:30 UTC2h 0m
2026-06-15 AYN7817 - Jun 15, 05:40 UTCJun 15, 08:04 UTC2h 25m
2026-06-14 AYN7817 - Jun 14, 10:50 UTCJun 15, 08:04 UTC21h 15m
2026-06-14 AYN7817 - Jun 14, 09:20 UTCJun 15, 08:04 UTC22h 45m
2026-06-14 AYN7675 - Jun 14, 07:25 UTCJun 14, 07:50 UTC25m
2026-06-14 AYN7675 - Jun 14, 06:05 UTCJun 14, 06:50 UTC45m
2026-06-13 AYN7675 - Jun 13, 11:35 UTCJun 14, 06:50 UTC19h 16m
2026-06-13 AYN7351 - Jun 13, 10:05 UTCJun 13, 10:30 UTC25m
2026-06-12 AYT7352 PLX → PLX Jun 12, 11:40 UTCJun 13, 10:30 UTC22h 49m
2026-06-12 AYN7351 - Jun 12, 10:20 UTCJun 12, 10:35 UTC15m
2026-06-11 AYN7952 - Jun 11, 08:50 UTCJun 11, 20:50 UTC12h 0m

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

Mode-S 4CAEBB frequently asked

What is Mode-S code 4CAEBB?
4CAEBB is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-KFB.
Where is Mode-S 4CAEBB registered?
Mode-S code 4CAEBB is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAEBB broadcasting right now?
No active broadcast right now. Last signal was 14d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAEBB, octal 23127273, decimal 5,025,467.
What flights does 4CAEBB operate?
Mode-S 4CAEBB has broadcast 20 distinct callsigns, including AYN7951, AYN7906, AYN7905, AYN7078, AYN7952.