Apparatus

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sensors Mode-S transponder

4CAFCA

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-GHA · BOEING 737-400

Hex
4CAFCA
Octal
23127712
Decimal
5,025,738
Country
IE
Tail
EI-GHA
Type
B734
No current signal · last broadcast 23h ago
Flights observed
82
Distinct callsigns
20
Country
IE
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 4CAFCA.

Country allocation

The ICAO 24-bit address 4CAFCA 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
MSA61P Mistral Air 11 2026-05-27
MSA976P - 9 2026-05-28
MSA95S Mistral Air 9 2026-05-28
MSA94S Mistral Air 9 2026-05-27
MSA55B Mistral Air 7 2026-05-11
MSA56B - 4 2026-04-15
MSA9784 - 3 2026-05-24
MSA86E Mistral Air 3 2026-05-24
MSA9893 Mistral Air 2 2026-05-29
MSA97C Mistral Air 2 2026-05-03
MSA9798 Mistral Air 2 2026-05-04
MSA91C Mistral Air 2 2026-05-25
MSA79F Mistral Air 2 2026-05-25
MSA763 - 2 2026-04-17
MSA761P - 2 2026-04-22
MSA9796 Mistral Air 1 2026-05-03
MSA9786 Mistral Air 1 2026-04-20
MSA9713 Mistral Air 1 2026-05-11
MSA9711 Mistral Air 1 2026-05-10
MSA95F Mistral Air 1 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 MSA9893 LEJ → VBS May 29, 01:05 UTCMay 29, 01:50 UTC45m
2026-05-28 MSA95S VBS → BRI May 28, 22:45 UTCMay 28, 23:55 UTC1h 10m
2026-05-28 MSA976P - May 28, 01:15 UTCMay 28, 02:25 UTC1h 10m
2026-05-27 MSA61P VBS → OLB May 27, 23:50 UTCMay 28, 00:25 UTC35m
2026-05-27 MSA61P VBS → OLB May 27, 22:20 UTCMay 27, 23:00 UTC40m
2026-05-27 MSA94S SUF → VBS May 27, 19:55 UTCMay 27, 21:10 UTC1h 15m
2026-05-26 MSA95S VBS → BRI May 26, 22:39 UTCMay 26, 23:49 UTC1h 10m
2026-05-26 MSA94S SUF → VBS May 26, 20:05 UTCMay 26, 21:20 UTC1h 15m
2026-05-25 MSA95S VBS → BRI May 25, 23:04 UTCMay 26, 00:14 UTC1h 10m
2026-05-25 MSA91C CTA → VBS May 25, 20:30 UTCMay 25, 21:45 UTC1h 15m
2026-05-25 MSA79F FCO → CTA May 25, 18:05 UTCMay 25, 18:50 UTC45m
2026-05-24 MSA9784 - May 24, 20:20 UTCMay 24, 21:20 UTC1h 0m
2026-05-24 MSA86E FCO → CAG May 24, 18:30 UTCMay 24, 19:00 UTC30m
2026-05-19 MSA9477 DUB → MRS May 19, 13:20 UTCMay 19, 14:50 UTC1h 30m
2026-05-19 MSA706 HEL → VIE May 19, 08:25 UTCMay 19, 10:00 UTC1h 35m
2026-05-18 MSA9478 CAG → PMI May 18, 14:10 UTCMay 18, 16:15 UTC2h 5m
2026-05-15 MSA942M - May 15, 18:05 UTCMay 15, 18:30 UTC25m
2026-05-13 MSA976P - May 13, 03:10 UTCMay 13, 03:40 UTC30m
2026-05-12 MSA61P VBS → OLB May 12, 23:45 UTCMay 13, 00:20 UTC35m
2026-05-12 MSA61P VBS → OLB May 12, 22:15 UTCMay 12, 22:55 UTC40m
2026-05-12 MSA976P - May 12, 19:20 UTCMay 12, 20:30 UTC1h 10m
2026-05-11 MSA55B BRI → VBS May 11, 20:10 UTCMay 11, 21:21 UTC1h 11m
2026-05-11 MSA9713 MLA → FCO May 11, 17:25 UTCMay 11, 18:00 UTC35m
2026-05-11 MSA712 - May 11, 03:05 UTCMay 11, 04:05 UTC1h 0m
2026-05-10 MSA9711 FCO → MIR May 10, 23:00 UTCMay 10, 23:44 UTC45m
2026-05-10 MSA33B VBS → BRI May 10, 21:14 UTCMay 10, 22:15 UTC1h 0m
2026-05-08 MSA976P - May 8, 01:14 UTCMay 8, 02:19 UTC1h 5m
2026-05-07 MSA61P VBS → OLB May 7, 23:45 UTCMay 8, 00:20 UTC35m
2026-05-07 MSA61P VBS → OLB May 7, 22:15 UTCMay 7, 22:54 UTC40m
2026-05-07 MSA94S SUF → VBS May 7, 20:00 UTCMay 7, 21:15 UTC1h 15m
2026-05-06 MSA95S VBS → BRI May 6, 22:40 UTCMay 7, 00:00 UTC1h 20m
2026-05-06 MSA94S SUF → VBS May 6, 19:45 UTCMay 6, 21:00 UTC1h 15m
2026-05-05 MSA95S VBS → BRI May 5, 22:40 UTCMay 5, 23:55 UTC1h 15m
2026-05-05 MSA94S SUF → VBS May 5, 20:01 UTCMay 5, 21:20 UTC1h 20m
2026-05-04 MSA95S VBS → BRI May 4, 22:40 UTCMay 4, 23:50 UTC1h 10m
2026-05-04 MSA94S SUF → VBS May 4, 20:05 UTCMay 4, 21:15 UTC1h 10m
2026-05-04 MSA9798 CTA → CTA May 4, 01:00 UTCMay 4, 01:20 UTC20m
2026-05-03 MSA97C VBS → CTA May 3, 22:34 UTCMay 3, 23:55 UTC1h 20m
2026-05-03 MSA9796 CTA → VBS May 3, 20:10 UTCMay 3, 21:39 UTC1h 30m
2026-05-03 MSA95F FCO → CTA May 3, 17:54 UTCMay 3, 18:45 UTC50m
2026-04-30 MSA9893 LEJ → VBS Apr 30, 01:20 UTCApr 30, 02:05 UTC45m
2026-04-29 MSA95S VBS → BRI Apr 29, 23:00 UTCApr 30, 00:10 UTC1h 9m
2026-04-29 MSA94S SUF → VBS Apr 29, 20:00 UTCApr 29, 21:15 UTC1h 15m
2026-04-28 MSA95S VBS → BRI Apr 28, 22:45 UTCApr 29, 00:00 UTC1h 15m
2026-04-28 MSA94S SUF → VBS Apr 28, 20:00 UTCApr 28, 21:10 UTC1h 10m
2026-04-27 MSA95S VBS → BRI Apr 27, 22:40 UTCApr 27, 23:50 UTC1h 10m
2026-04-27 MSA94S SUF → VBS Apr 27, 19:55 UTCApr 27, 21:10 UTC1h 15m
2026-04-27 MSA9798 CTA → CTA Apr 27, 00:10 UTCApr 27, 00:30 UTC20m
2026-04-26 MSA97C VBS → CTA Apr 26, 21:50 UTCApr 26, 23:05 UTC1h 15m
2026-04-26 MSA9784 - Apr 26, 19:55 UTCApr 26, 20:45 UTC50m

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

Mode-S 4CAFCA frequently asked

What is Mode-S code 4CAFCA?
4CAFCA is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-GHA.
Where is Mode-S 4CAFCA registered?
Mode-S code 4CAFCA is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAFCA broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAFCA, octal 23127712, decimal 5,025,738.
What flights does 4CAFCA operate?
Mode-S 4CAFCA has broadcast 20 distinct callsigns, including MSA61P, MSA976P, MSA95S, MSA94S, MSA55B.