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sensors Mode-S transponder

4CAB25

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-GTC · ROBIN HR-200

Hex
4CAB25
Octal
23125445
Decimal
5,024,549
Country
IE
Tail
EI-GTC
Type
HR20
No current signal · last broadcast 15h ago
Flights observed
104
Distinct callsigns
1
Country
IE
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4CAB25.

Country allocation

The ICAO 24-bit address 4CAB25 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 1 distinct

Callsign Airline Flights Last seen
EIGTC - 104 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 EIGTC - Jul 13, 13:30 UTCJul 13, 14:10 UTC40m
2026-07-12 EIGTC - Jul 12, 10:50 UTCJul 12, 11:55 UTC1h 5m
2026-07-12 EIGTC - Jul 12, 08:15 UTCJul 12, 08:55 UTC40m
2026-07-11 EIGTC - Jul 11, 18:25 UTCJul 11, 18:50 UTC25m
2026-07-11 EIGTC - Jul 11, 16:35 UTCJul 11, 17:05 UTC30m
2026-07-11 EIGTC - Jul 11, 14:55 UTCJul 11, 15:35 UTC40m
2026-07-11 EIGTC - Jul 11, 11:55 UTCJul 11, 12:15 UTC20m
2026-07-11 EIGTC - Jul 11, 10:20 UTCJul 11, 10:55 UTC35m
2026-07-10 EIGTC - Jul 10, 15:25 UTCJul 10, 16:05 UTC40m
2026-07-10 EIGTC - Jul 10, 13:30 UTCJul 10, 13:50 UTC20m
2026-07-10 EIGTC - Jul 10, 12:30 UTCJul 10, 12:50 UTC20m
2026-07-09 EIGTC - Jul 9, 13:35 UTCJul 9, 14:45 UTC1h 10m
2026-07-09 EIGTC - Jul 9, 10:25 UTCJul 9, 11:40 UTC1h 15m
2026-07-08 EIGTC - Jul 8, 18:40 UTCJul 8, 19:00 UTC20m
2026-07-08 EIGTC - Jul 8, 16:40 UTCJul 8, 18:00 UTC1h 20m
2026-07-08 EIGTC - Jul 8, 13:30 UTCJul 8, 15:40 UTC2h 10m
2026-07-08 EIGTC - Jul 8, 10:05 UTCJul 8, 10:30 UTC25m
2026-07-08 EIGTC - Jul 8, 09:05 UTCJul 8, 09:30 UTC25m
2026-07-07 EIGTC - Jul 7, 13:05 UTCJul 7, 13:45 UTC40m
2026-07-07 EIGTC - Jul 7, 11:10 UTCJul 7, 11:55 UTC45m
2026-07-06 EIGTC - Jul 6, 17:10 UTCJul 6, 17:40 UTC30m
2026-07-06 EIGTC - Jul 6, 15:05 UTCJul 6, 15:35 UTC30m
2026-07-06 EIGTC - Jul 6, 13:30 UTCJul 6, 14:00 UTC30m
2026-07-06 EIGTC - Jul 6, 11:00 UTCJul 6, 11:35 UTC35m
2026-07-05 EIGTC - Jul 5, 17:20 UTCJul 5, 18:55 UTC1h 35m
2026-07-05 EIGTC - Jul 5, 16:05 UTCJul 5, 16:25 UTC20m
2026-07-03 EIGTC - Jul 3, 14:05 UTCJul 3, 14:20 UTC15m
2026-07-03 EIGTC - Jul 3, 12:10 UTCJul 3, 13:25 UTC1h 15m
2026-07-02 EIGTC - Jul 2, 15:50 UTCJul 2, 16:30 UTC40m
2026-07-02 EIGTC - Jul 2, 14:20 UTCJul 2, 14:35 UTC15m
2026-07-02 EIGTC - Jul 2, 12:30 UTCJul 2, 13:20 UTC50m
2026-07-02 EIGTC - Jul 2, 09:15 UTCJul 2, 10:05 UTC50m
2026-07-01 EIGTC - Jul 1, 13:25 UTCJul 1, 15:05 UTC1h 40m
2026-07-01 EIGTC - Jul 1, 11:25 UTCJul 1, 12:30 UTC1h 5m
2026-06-30 EIGTC - Jun 30, 18:05 UTCJun 30, 19:10 UTC1h 5m
2026-06-29 EIGTC - Jun 29, 16:39 UTCJun 29, 17:10 UTC30m
2026-06-23 EIGTC - Jun 23, 13:15 UTCJun 23, 14:25 UTC1h 10m
2026-06-22 EIGTC - Jun 22, 15:05 UTCJun 22, 15:35 UTC30m
2026-06-21 EIGTC - Jun 21, 18:04 UTCJun 21, 18:54 UTC50m
2026-06-21 EIGTC - Jun 21, 15:09 UTCJun 21, 16:39 UTC1h 30m
2026-06-21 EIGTC - Jun 21, 13:34 UTCJun 21, 14:24 UTC50m
2026-06-20 EIGTC - Jun 20, 09:39 UTCJun 20, 10:20 UTC40m
2026-06-19 EIGTC - Jun 19, 19:59 UTCJun 19, 20:19 UTC20m
2026-06-02 EIGTC - Jun 2, 15:45 UTCJun 2, 16:15 UTC30m
2026-05-28 EIGTC - May 28, 10:50 UTCMay 28, 12:20 UTC1h 30m
2026-05-28 EIGTC - May 28, 08:20 UTCMay 28, 09:25 UTC1h 5m
2026-05-27 EIGTC - May 27, 14:40 UTCMay 27, 15:20 UTC40m
2026-05-27 EIGTC - May 27, 12:20 UTCMay 27, 13:00 UTC40m
2026-05-26 EIGTC - May 26, 18:45 UTCMay 26, 19:25 UTC40m
2026-05-26 EIGTC - May 26, 16:35 UTCMay 26, 17:09 UTC35m

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

Mode-S 4CAB25 frequently asked

What is Mode-S code 4CAB25?
4CAB25 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-GTC.
Where is Mode-S 4CAB25 registered?
Mode-S code 4CAB25 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAB25 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAB25, octal 23125445, decimal 5,024,549.
What flights does 4CAB25 operate?
Mode-S 4CAB25 has broadcast 1 distinct callsign, including EIGTC.