sensors Mode-S transponder

4CAE87

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HAG · ATR-72-600

Hex
4CAE87
Octal
23127207
Decimal
5,025,415
Country
IE
Tail
EI-HAG
Type
AT76
No current signal · last broadcast 20h ago
Flights observed
87
Distinct callsigns
12
Country
IE
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 4CAE87.

Country allocation

The ICAO 24-bit address 4CAE87 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 12 distinct

Callsign Airline Flights Last seen
ABR7XP - 36 2026-07-17
ABR8XP - 35 2026-07-16
ABR4332 - 3 2026-04-21
ABR4232 - 3 2026-04-21
ABR4999 - 2 2026-04-14
ABR1PG - 2 2026-04-17
FDX4998 FedEx Express 1 2026-05-13
ABR6TW - 1 2026-05-28
ABR5TW - 1 2026-05-28
ABR4998 - 1 2026-05-06
ABR4257 - 1 2026-04-15
ABR2PG - 1 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 ABR7XP - Jul 17, 01:59 UTCJul 17, 03:39 UTC1h 40m
2026-07-16 ABR8XP - Jul 16, 21:30 UTCJul 16, 23:10 UTC1h 40m
2026-07-16 ABR7XP - Jul 16, 02:10 UTCJul 16, 03:45 UTC1h 35m
2026-07-15 ABR8XP MXP → LGG Jul 15, 21:30 UTCJul 15, 23:15 UTC1h 45m
2026-07-15 ABR7XP - Jul 15, 02:15 UTCJul 15, 03:40 UTC1h 25m
2026-07-14 ABR8XP MXP → LGG Jul 14, 21:50 UTCJul 14, 23:30 UTC1h 39m
2026-07-14 ABR7XP - Jul 14, 02:10 UTCJul 14, 03:40 UTC1h 30m
2026-07-13 ABR8XP - Jul 13, 21:50 UTCJul 13, 23:30 UTC1h 40m
2026-07-10 ABR7XP - Jul 10, 02:05 UTCJul 10, 03:50 UTC1h 45m
2026-07-09 ABR8XP - Jul 9, 21:30 UTCJul 9, 23:10 UTC1h 40m
2026-07-09 ABR7XP - Jul 9, 02:05 UTCJul 9, 03:35 UTC1h 30m
2026-07-08 ABR8XP - Jul 8, 21:30 UTCJul 8, 23:10 UTC1h 40m
2026-07-08 ABR7XP - Jul 8, 02:05 UTCJul 8, 03:30 UTC1h 25m
2026-07-07 ABR8XP - Jul 7, 21:30 UTCJul 7, 23:15 UTC1h 45m
2026-07-07 ABR7XP - Jul 7, 02:25 UTCJul 7, 03:55 UTC1h 30m
2026-07-06 ABR8XP - Jul 6, 21:35 UTCJul 6, 23:15 UTC1h 40m
2026-07-03 ABR7XP - Jul 3, 02:10 UTCJul 3, 03:45 UTC1h 35m
2026-07-02 ABR8XP MXP → LGG Jul 2, 21:25 UTCJul 2, 23:05 UTC1h 40m
2026-07-02 ABR7XP LGG → MXP Jul 2, 02:10 UTCJul 2, 03:40 UTC1h 30m
2026-06-30 ABR8XP - Jun 30, 21:35 UTCJun 30, 23:20 UTC1h 45m
2026-06-30 ABR7XP - Jun 30, 02:15 UTCJun 30, 03:45 UTC1h 30m
2026-06-29 ABR8XP - Jun 29, 21:54 UTCJun 29, 23:29 UTC1h 35m
2026-06-26 ABR7XP - Jun 26, 02:09 UTCJun 26, 04:00 UTC1h 50m
2026-06-25 ABR8XP - Jun 25, 21:35 UTCJun 25, 23:09 UTC1h 35m
2026-06-25 ABR7XP - Jun 25, 02:05 UTCJun 25, 03:40 UTC1h 35m
2026-06-24 ABR8XP MXP → LGG Jun 24, 21:24 UTCJun 24, 23:00 UTC1h 35m
2026-06-24 ABR7XP - Jun 24, 02:15 UTCJun 24, 03:50 UTC1h 35m
2026-06-23 ABR8XP MXP → LGG Jun 23, 21:34 UTCJun 23, 23:10 UTC1h 35m
2026-06-23 ABR7XP - Jun 23, 02:09 UTCJun 23, 03:45 UTC1h 35m
2026-06-22 ABR8XP MXP → LGG Jun 22, 21:40 UTCJun 22, 23:14 UTC1h 35m
2026-06-19 ABR7XP - Jun 19, 02:24 UTCJun 19, 04:00 UTC1h 35m
2026-06-18 ABR8XP - Jun 18, 21:20 UTCJun 18, 23:05 UTC1h 45m
2026-06-18 ABR7XP - Jun 18, 02:05 UTCJun 18, 03:40 UTC1h 35m
2026-06-17 ABR8XP - Jun 17, 21:20 UTCJun 17, 23:00 UTC1h 40m
2026-06-17 ABR7XP - Jun 17, 02:10 UTCJun 17, 03:45 UTC1h 35m
2026-06-11 ABR8XP - Jun 11, 21:30 UTCJun 11, 23:20 UTC1h 50m
2026-06-11 ABR7XP - Jun 11, 01:55 UTCJun 11, 03:25 UTC1h 30m
2026-06-10 ABR8XP - Jun 10, 21:30 UTCJun 10, 23:05 UTC1h 35m
2026-06-10 ABR7XP LGG → MXP Jun 10, 02:10 UTCJun 10, 03:50 UTC1h 40m
2026-06-09 ABR8XP - Jun 9, 21:30 UTCJun 9, 23:10 UTC1h 40m
2026-06-09 ABR7XP LGG → MXP Jun 9, 02:25 UTCJun 9, 04:05 UTC1h 40m
2026-06-04 ABR8XP - Jun 4, 21:45 UTCJun 4, 23:15 UTC1h 30m
2026-06-04 ABR7XP - Jun 4, 02:05 UTCJun 4, 03:35 UTC1h 30m
2026-06-03 ABR8XP - Jun 3, 21:30 UTCJun 3, 23:10 UTC1h 40m
2026-06-03 ABR7XP - Jun 3, 02:05 UTCJun 3, 03:35 UTC1h 30m
2026-05-28 ABR6TW - May 28, 19:45 UTCMay 28, 22:00 UTC2h 15m
2026-05-28 ABR5TW - May 28, 01:45 UTCMay 28, 03:50 UTC2h 5m
2026-05-27 ABR8XP MXP → LGG May 27, 21:45 UTCMay 27, 23:20 UTC1h 35m
2026-05-27 ABR7XP - May 27, 02:04 UTCMay 27, 03:50 UTC1h 45m
2026-05-26 ABR8XP MXP → LGG May 26, 21:25 UTCMay 26, 22:59 UTC1h 35m

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

Mode-S 4CAE87 frequently asked

What is Mode-S code 4CAE87?
4CAE87 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HAG.
Where is Mode-S 4CAE87 registered?
Mode-S code 4CAE87 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE87 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE87, octal 23127207, decimal 5,025,415.
What flights does 4CAE87 operate?
Mode-S 4CAE87 has broadcast 12 distinct callsigns, including ABR7XP, ABR8XP, ABR4332, ABR4232, ABR4999.