Apparatus

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sensors Mode-S transponder

4CAFF4

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-LKD · AIRBUS A-330-300

Hex
4CAFF4
Octal
23127764
Decimal
5,025,780
Country
IE
Tail
EI-LKD
Type
A333
No current signal · last broadcast 1d ago
Flights observed
64
Distinct callsigns
11
Country
IE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4CAFF4.

Country allocation

The ICAO 24-bit address 4CAFF4 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 11 distinct

Callsign Airline Flights Last seen
SVA933 Saudi Arabian Airlines 20 2026-06-05
SVA934 Saudi Arabian Airlines 16 2026-06-05
SVA913 Saudi Arabian Airlines 7 2026-06-05
SVA922 Saudi Arabian Airlines 4 2026-06-07
SVA921 Saudi Arabian Airlines 4 2026-06-06
SVA915 Saudi Arabian Airlines 4 2026-05-19
SVA947 Saudi Arabian Airlines 2 2026-05-05
SVA916 Saudi Arabian Airlines 2 2026-05-18
SVA914 Saudi Arabian Airlines 2 2026-05-30
SVA3916 Saudi Arabian Airlines 2 2026-05-05
SVA953 Saudi Arabian Airlines 1 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-07 SVA922 BRU → JED Jun 7, 07:50 UTCJun 7, 19:35 UTC11h 45m
2026-06-06 SVA921 RUH → LGG Jun 6, 13:25 UTCJun 7, 03:55 UTC14h 30m
2026-06-05 SVA913 RUH → FRA Jun 5, 15:05 UTCJun 6, 10:55 UTC19h 50m
2026-06-05 SVA934 AMS → JED Jun 5, 14:10 UTCJun 6, 10:55 UTC20h 45m
2026-06-05 SVA933 JED → AMS Jun 5, 05:30 UTCJun 5, 09:30 UTC4h 0m
2026-06-03 SVA934 AMS → JED Jun 3, 15:05 UTCJun 3, 19:15 UTC4h 10m
2026-06-03 SVA933 JED → AMS Jun 3, 04:40 UTCJun 3, 08:35 UTC3h 55m
2026-06-01 SVA934 AMS → JED Jun 1, 13:55 UTCJun 1, 17:50 UTC3h 55m
2026-06-01 SVA933 JED → AMS Jun 1, 05:20 UTCJun 1, 09:15 UTC3h 55m
2026-05-30 SVA914 FRA → RUH May 30, 14:40 UTCMay 31, 09:00 UTC18h 20m
2026-05-29 SVA913 RUH → FRA May 29, 17:05 UTCMay 30, 11:35 UTC18h 30m
2026-05-29 SVA934 AMS → JED May 29, 15:05 UTCMay 30, 11:35 UTC20h 30m
2026-05-29 SVA934 AMS → JED May 29, 14:25 UTCMay 30, 11:35 UTC21h 10m
2026-05-29 SVA933 JED → AMS May 29, 04:50 UTCMay 29, 09:05 UTC4h 15m
2026-05-27 SVA934 AMS → JED May 27, 15:15 UTCMay 27, 19:25 UTC4h 10m
2026-05-27 SVA933 JED → AMS May 27, 05:29 UTCMay 27, 09:05 UTC3h 36m
2026-05-25 SVA934 AMS → JED May 25, 13:55 UTCMay 25, 17:00 UTC3h 5m
2026-05-25 SVA933 JED → AMS May 25, 05:25 UTCMay 25, 09:05 UTC3h 40m
2026-05-24 SVA922 BRU → JED May 24, 06:10 UTCMay 24, 09:40 UTC3h 30m
2026-05-23 SVA921 RUH → LGG May 23, 15:00 UTCMay 24, 03:55 UTC12h 55m
2026-05-22 SVA913 RUH → FRA May 22, 17:05 UTCMay 23, 11:35 UTC18h 29m
2026-05-22 SVA913 RUH → FRA May 22, 15:05 UTCMay 23, 11:35 UTC20h 29m
2026-05-22 SVA934 AMS → JED May 22, 14:20 UTCMay 23, 11:35 UTC21h 14m
2026-05-22 SVA933 JED → AMS May 22, 05:25 UTCMay 22, 09:15 UTC3h 50m
2026-05-20 SVA934 AMS → JED May 20, 15:00 UTCMay 20, 19:20 UTC4h 20m
2026-05-19 SVA933 JED → AMS May 19, 15:05 UTCMay 20, 10:15 UTC19h 11m
2026-05-19 SVA933 JED → AMS May 19, 13:05 UTCMay 20, 10:15 UTC21h 11m
2026-05-19 SVA933 JED → AMS May 19, 12:05 UTCMay 20, 10:15 UTC22h 11m
2026-05-19 SVA915 RUH → BRU May 19, 05:10 UTCMay 19, 08:55 UTC3h 45m
2026-05-18 SVA916 BRU → RUH May 18, 06:55 UTCMay 18, 09:55 UTC3h 0m
2026-05-17 SVA915 RUH → BRU May 17, 23:55 UTCMay 18, 03:30 UTC3h 35m
2026-05-14 SVA934 AMS → JED May 14, 15:10 UTCMay 14, 19:15 UTC4h 5m
2026-05-14 SVA933 JED → AMS May 14, 05:30 UTCMay 14, 09:10 UTC3h 40m
2026-05-12 SVA916 BRU → RUH May 12, 14:55 UTCMay 12, 17:35 UTC2h 40m
2026-05-12 SVA915 RUH → BRU May 12, 07:25 UTCMay 12, 11:35 UTC4h 10m
2026-05-11 SVA914 FRA → RUH May 11, 10:00 UTCMay 11, 13:00 UTC3h 0m
2026-05-10 SVA913 RUH → FRA May 10, 17:40 UTCMay 11, 07:05 UTC13h 25m
2026-05-10 SVA915 RUH → BRU May 10, 08:40 UTCMay 10, 12:49 UTC4h 10m
2026-05-09 SVA934 AMS → JED May 9, 11:55 UTCMay 9, 15:55 UTC4h 0m
2026-05-09 SVA933 JED → AMS May 9, 04:05 UTCMay 9, 08:35 UTC4h 30m
2026-05-08 SVA953 RUH → SHJ May 8, 16:00 UTCMay 8, 16:10 UTC10m
2026-05-07 SVA934 AMS → JED May 7, 15:25 UTCMay 7, 19:50 UTC4h 25m
2026-05-06 SVA933 JED → AMS May 6, 15:20 UTCMay 7, 08:45 UTC17h 25m
2026-05-06 SVA933 JED → AMS May 6, 05:55 UTCMay 6, 09:35 UTC3h 40m
2026-05-05 SVA947 RUH → NBO May 5, 18:25 UTCMay 5, 18:40 UTC15m
2026-05-05 SVA3916 JED → IST May 5, 06:45 UTCMay 5, 08:25 UTC1h 40m
2026-05-04 SVA934 AMS → JED May 4, 14:30 UTCMay 5, 02:55 UTC12h 26m
2026-05-04 SVA933 JED → AMS May 4, 07:00 UTCMay 4, 10:35 UTC3h 35m
2026-05-03 SVA922 BRU → JED May 3, 08:20 UTCMay 3, 10:55 UTC2h 35m
2026-05-02 SVA921 RUH → LGG May 2, 13:55 UTCMay 3, 03:45 UTC13h 49m

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

Mode-S 4CAFF4 frequently asked

What is Mode-S code 4CAFF4?
4CAFF4 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-LKD.
Where is Mode-S 4CAFF4 registered?
Mode-S code 4CAFF4 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAFF4 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAFF4, octal 23127764, decimal 5,025,780.
What flights does 4CAFF4 operate?
Mode-S 4CAFF4 has broadcast 11 distinct callsigns, including SVA933, SVA934, SVA913, SVA922, SVA921.