Apparatus

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sensors Mode-S transponder

4CAFA0

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-AER · GULFSTREAM G650

Hex
4CAFA0
Octal
23127640
Decimal
5,025,696
Country
IE
Tail
EI-AER
Type
GLF6
No current signal · last broadcast 4d ago
Flights observed
79
Distinct callsigns
1
Country
IE
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 4CAFA0.

Country allocation

The ICAO 24-bit address 4CAFA0 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
EIAER - 79 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 EIAER DUB → FAO Jul 13, 17:35 UTCJul 13, 19:50 UTC2h 15m
2026-07-12 EIAER FAO → DUB Jul 12, 17:15 UTCJul 12, 19:25 UTC2h 10m
2026-07-11 EIAER - Jul 11, 04:01 UTCJul 11, 14:20 UTC10h 20m
2026-07-09 EIAER - Jul 9, 22:10 UTCJul 9, 22:45 UTC35m
2026-07-08 EIAER AKL → BNE Jul 8, 04:25 UTCJul 8, 07:30 UTC3h 5m
2026-07-07 EIAER - Jul 7, 09:55 UTCJul 7, 10:15 UTC20m
2026-07-07 EIAER - Jul 7, 07:55 UTCJul 7, 08:25 UTC30m
2026-07-06 EIAER - Jul 6, 20:15 UTCJul 6, 20:55 UTC40m
2026-07-06 EIAER - Jul 6, 14:20 UTCJul 6, 14:35 UTC15m
2026-07-06 EIAER - Jul 6, 12:25 UTCJul 6, 12:35 UTC10m
2026-07-05 EIAER - Jul 5, 05:40 UTCJul 5, 13:00 UTC7h 20m
2026-07-04 EIAER FAO → DWC Jul 4, 21:10 UTCJul 5, 04:30 UTC7h 20m
2026-07-04 EIAER DUB → FAO Jul 4, 17:55 UTCJul 4, 20:10 UTC2h 15m
2026-07-04 EIAER FAO → DUB Jul 4, 07:50 UTCJul 4, 10:05 UTC2h 15m
2026-06-30 EIAER DUB → FAO Jun 30, 12:25 UTCJun 30, 14:35 UTC2h 10m
2026-06-24 EIAER - Jun 24, 10:55 UTCJun 24, 13:24 UTC2h 30m
2026-06-24 EIAER - Jun 24, 07:30 UTCJun 24, 08:20 UTC50m
2026-06-24 EIAER - Jun 24, 04:44 UTCJun 24, 06:45 UTC2h 0m
2026-06-23 EIAER KIR → DUB Jun 23, 11:45 UTCJun 23, 12:25 UTC40m
2026-06-23 EIAER - Jun 23, 08:50 UTCJun 23, 10:29 UTC1h 40m
2026-06-21 EIAER - Jun 21, 12:10 UTCJun 21, 13:44 UTC1h 35m
2026-06-21 EIAER - Jun 21, 10:34 UTCJun 21, 10:44 UTC10m
2026-06-17 EIAER - Jun 17, 14:20 UTCJun 17, 14:35 UTC15m
2026-06-17 EIAER - Jun 17, 11:40 UTCJun 17, 13:25 UTC1h 45m
2026-06-17 EIAER DUB → TLS Jun 17, 09:40 UTCJun 17, 11:10 UTC1h 30m
2026-06-13 EIAER EMA → DUB Jun 13, 13:00 UTCJun 13, 13:40 UTC40m
2026-06-13 EIAER DUB → EMA Jun 13, 08:05 UTCJun 13, 08:40 UTC35m
2026-06-11 EIAER BOS → DUB Jun 11, 10:00 UTCJun 11, 15:05 UTC5h 5m
2026-06-10 EIAER DUB → BOS Jun 10, 13:30 UTCJun 10, 19:15 UTC5h 45m
2026-06-08 EIAER - Jun 8, 15:25 UTCJun 9, 01:20 UTC9h 55m
2026-06-04 EIAER - Jun 4, 14:40 UTCJun 4, 23:25 UTC8h 45m
2026-06-03 EIAER - Jun 3, 18:30 UTCJun 3, 19:05 UTC35m
2026-06-02 EIAER - Jun 2, 17:25 UTCJun 2, 18:05 UTC40m
2026-06-02 EIAER - Jun 2, 11:30 UTCJun 2, 12:05 UTC35m
2026-05-31 EIAER NOC → TEB May 31, 15:10 UTCMay 31, 21:10 UTC6h 0m
2026-05-31 EIAER BUD → NOC May 31, 11:50 UTCMay 31, 14:30 UTC2h 40m
2026-05-31 EIAER PRG → BUD May 31, 09:20 UTCMay 31, 10:15 UTC55m
2026-05-30 EIAER BUD → PRG May 30, 10:35 UTCMay 30, 11:25 UTC50m
2026-05-30 EIAER DUB → BUD May 30, 06:25 UTCMay 30, 08:45 UTC2h 20m
2026-05-29 EIAER - May 29, 15:30 UTCMay 29, 16:15 UTC45m
2026-05-28 EIAER - May 28, 07:40 UTCMay 28, 08:15 UTC35m
2026-05-27 EIAER TLV → DUB May 27, 06:09 UTCMay 27, 11:15 UTC5h 6m
2026-05-27 EIAER - May 27, 04:09 UTCMay 27, 04:45 UTC35m
2026-05-26 EIAER - May 26, 15:05 UTCMay 26, 15:24 UTC20m
2026-05-26 EIAER MAD → TLV May 26, 09:15 UTCMay 26, 13:29 UTC4h 15m
2026-05-25 EIAER DUB → MAD May 25, 13:35 UTCMay 25, 15:25 UTC1h 50m
2026-05-24 EIAER - May 24, 12:45 UTCMay 24, 18:05 UTC5h 20m
2026-05-22 EIAER - May 22, 11:45 UTCMay 22, 17:40 UTC5h 55m
2026-05-21 EIAER - May 21, 08:50 UTCMay 21, 09:40 UTC50m
2026-05-20 EIAER DUB → NHT May 20, 12:00 UTCMay 20, 12:45 UTC45m

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

Mode-S 4CAFA0 frequently asked

What is Mode-S code 4CAFA0?
4CAFA0 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-AER.
Where is Mode-S 4CAFA0 registered?
Mode-S code 4CAFA0 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAFA0 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAFA0, octal 23127640, decimal 5,025,696.
What flights does 4CAFA0 operate?
Mode-S 4CAFA0 has broadcast 1 distinct callsign, including EIAER.