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sensors Mode-S transponder

4CAD4C

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-AZG · BOEING 737-800

Hex
4CAD4C
Octal
23126514
Decimal
5,025,100
Country
IE
Tail
EI-AZG
Type
B738
No current signal · last broadcast Jul 26, 13:05 UTC
Flights observed
98
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 13:05 UTC

Last known position

Most recent position reported by Mode-S 4CAD4C.

Country allocation

The ICAO 24-bit address 4CAD4C 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
ABR426 ASL Airlines Ireland 18 2026-07-26
ABR425 ASL Airlines Ireland 17 2026-07-26
ABR469 - 7 2026-07-19
ABR468 ASL Airlines Ireland 7 2026-07-19
ABR2401 - 5 2026-06-26
ABR148 - 5 2026-06-12
ABR147 - 5 2026-06-12
ABR146 - 5 2026-06-12
ABR145 - 5 2026-06-12
ABR402 - 4 2026-07-16
ABR2342 - 3 2026-04-13
ABR403 - 2 2026-07-15
ABR294 - 2 2026-05-31
ABR291 - 2 2026-05-31
ABR2317 - 2 2026-04-14
ABR843 - 1 2026-07-06
ABR842 - 1 2026-07-06
ABR841 - 1 2026-07-04
ABR840 - 1 2026-07-04
ABR738 ASL Airlines Ireland 1 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ABR426 LGG → MXP Jul 26, 12:00 UTCJul 26, 13:00 UTC1h 0m
2026-07-26 ABR425 MXP → LGG Jul 26, 08:55 UTCJul 26, 10:00 UTC1h 5m
2026-07-24 ABR426 LGG → MXP Jul 24, 12:00 UTCJul 24, 13:10 UTC1h 10m
2026-07-24 ABR425 - Jul 24, 09:05 UTCJul 24, 10:15 UTC1h 10m
2026-07-23 ABR426 LGG → MXP Jul 23, 12:05 UTCJul 23, 13:05 UTC1h 0m
2026-07-23 ABR425 - Jul 23, 09:10 UTCJul 23, 10:15 UTC1h 5m
2026-07-22 ABR426 LGG → MXP Jul 22, 12:05 UTCJul 22, 13:10 UTC1h 5m
2026-07-20 ABR426 LGG → MXP Jul 20, 12:00 UTCJul 20, 13:10 UTC1h 10m
2026-07-20 ABR425 - Jul 20, 09:00 UTCJul 20, 10:15 UTC1h 15m
2026-07-19 ABR468 LEJ → MXP Jul 19, 15:45 UTCJul 19, 17:05 UTC1h 20m
2026-07-19 ABR469 MXP → HAJ Jul 19, 11:30 UTCJul 19, 12:45 UTC1h 15m
2026-07-17 ABR468 LEJ → MXP Jul 17, 16:49 UTCJul 17, 18:05 UTC1h 15m
2026-07-17 ABR469 MXP → HAJ Jul 17, 11:39 UTCJul 17, 12:55 UTC1h 15m
2026-07-16 ABR468 LEJ → MXP Jul 16, 16:00 UTCJul 16, 17:20 UTC1h 20m
2026-07-16 ABR402 - Jul 16, 03:55 UTCJul 16, 06:10 UTC2h 15m
2026-07-15 ABR403 HAJ → MAD Jul 15, 23:10 UTCJul 16, 01:40 UTC2h 30m
2026-07-15 ABR402 - Jul 15, 03:55 UTCJul 15, 06:05 UTC2h 10m
2026-07-14 ABR403 - Jul 14, 23:25 UTCJul 15, 01:55 UTC2h 30m
2026-07-14 ABR402 - Jul 14, 04:30 UTCJul 14, 06:40 UTC2h 10m
2026-07-14 ABR2301 - Jul 14, 00:40 UTCJul 14, 02:30 UTC1h 50m
2026-07-13 ABR426 LGG → MXP Jul 13, 12:05 UTCJul 13, 13:15 UTC1h 10m
2026-07-13 ABR425 - Jul 13, 09:10 UTCJul 13, 10:15 UTC1h 5m
2026-07-09 ABR426 LGG → MXP Jul 9, 12:00 UTCJul 9, 13:05 UTC1h 5m
2026-07-09 ABR425 - Jul 9, 08:55 UTCJul 9, 10:05 UTC1h 10m
2026-07-06 ABR843 - Jul 6, 15:45 UTCJul 6, 18:05 UTC2h 20m
2026-07-06 ABR842 - Jul 6, 07:25 UTCJul 6, 09:20 UTC1h 55m
2026-07-04 ABR841 - Jul 4, 10:35 UTCJul 4, 14:25 UTC3h 50m
2026-07-04 ABR840 MXP → BOH Jul 4, 05:25 UTCJul 4, 07:05 UTC1h 40m
2026-07-03 ABR426 LGG → MXP Jul 3, 12:15 UTCJul 3, 13:20 UTC1h 5m
2026-07-03 ABR425 - Jul 3, 09:05 UTCJul 3, 10:15 UTC1h 10m
2026-07-02 ABR468 LEJ → MXP Jul 2, 15:30 UTCJul 2, 16:45 UTC1h 15m
2026-07-02 ABR469 MXP → HAJ Jul 2, 11:40 UTCJul 2, 12:50 UTC1h 10m
2026-07-01 ABR426 LGG → MXP Jul 1, 12:30 UTCJul 1, 13:40 UTC1h 10m
2026-07-01 ABR425 - Jul 1, 10:15 UTCJul 1, 11:20 UTC1h 5m
2026-06-30 ABR468 LEJ → MXP Jun 30, 16:00 UTCJun 30, 17:20 UTC1h 20m
2026-06-30 ABR469 MXP → HAJ Jun 30, 11:30 UTCJun 30, 12:40 UTC1h 10m
2026-06-26 ABR2401 HAJ → MXP Jun 26, 19:09 UTCJun 26, 20:24 UTC1h 15m
2026-06-25 ABR469 MXP → HAJ Jun 25, 11:15 UTCJun 25, 12:25 UTC1h 10m
2026-06-23 ABR426 LGG → MXP Jun 23, 12:05 UTCJun 23, 13:09 UTC1h 5m
2026-06-23 ABR425 - Jun 23, 09:05 UTCJun 23, 10:15 UTC1h 10m
2026-06-19 ABR2401 CGN → MXP Jun 19, 14:54 UTCJun 19, 16:04 UTC1h 10m
2026-06-12 ABR148 BLL → CGN Jun 12, 20:15 UTCJun 12, 21:15 UTC1h 0m
2026-06-12 ABR147 KEF → BLL Jun 12, 16:35 UTCJun 12, 19:10 UTC2h 35m
2026-06-12 ABR146 - Jun 12, 05:10 UTCJun 12, 07:50 UTC2h 40m
2026-06-12 ABR145 CGN → BLL Jun 12, 03:10 UTCJun 12, 04:10 UTC1h 0m
2026-06-11 ABR148 - Jun 11, 20:10 UTCJun 11, 21:10 UTC1h 0m
2026-06-11 ABR147 KEF → BLL Jun 11, 16:35 UTCJun 11, 19:00 UTC2h 25m
2026-06-11 ABR146 - Jun 11, 05:15 UTCJun 11, 08:00 UTC2h 45m
2026-06-11 ABR145 CGN → BLL Jun 11, 02:55 UTCJun 11, 03:50 UTC55m
2026-06-10 ABR148 - Jun 10, 20:10 UTCJun 10, 21:10 UTC1h 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-AZG page for operator, model, and routing details .

Mode-S 4CAD4C frequently asked

What is Mode-S code 4CAD4C?
4CAD4C is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-AZG.
Where is Mode-S 4CAD4C registered?
Mode-S code 4CAD4C is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD4C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD4C, octal 23126514, decimal 5,025,100.
What flights does 4CAD4C operate?
Mode-S 4CAD4C has broadcast 20 distinct callsigns, including ABR426, ABR425, ABR469, ABR468, ABR2401.