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sensors Mode-S transponder

4D215C

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-SKI

Hex
4D215C
Octal
23220534
Decimal
5,054,812
Country
MT
Tail
9H-SKI
Type
P180
No current signal · last broadcast 1d ago
Flights observed
99
Distinct callsigns
2
Country
MT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4D215C.

Country allocation

The ICAO 24-bit address 4D215C falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta 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 2 distinct

Callsign Airline Flights Last seen
FJO646 - 97 2026-07-20
9H646FX - 2 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 FJO646 - Jul 20, 21:00 UTCJul 20, 21:30 UTC30m
2026-07-20 FJO646 BCN → FLR Jul 20, 19:20 UTCJul 20, 20:25 UTC1h 5m
2026-07-20 FJO646 - Jul 20, 15:40 UTCJul 20, 17:20 UTC1h 40m
2026-07-18 FJO646 - Jul 18, 10:10 UTCJul 18, 10:40 UTC30m
2026-07-18 FJO646 - Jul 18, 07:00 UTCJul 18, 08:55 UTC1h 55m
2026-07-17 FJO646 - Jul 17, 16:55 UTCJul 17, 17:40 UTC45m
2026-07-16 FJO646 - Jul 16, 10:35 UTCJul 16, 11:05 UTC30m
2026-07-16 FJO646 - Jul 16, 09:05 UTCJul 16, 09:20 UTC15m
2026-07-15 FJO646 - Jul 15, 14:30 UTCJul 15, 16:10 UTC1h 40m
2026-07-15 FJO646 - Jul 15, 11:35 UTCJul 15, 13:10 UTC1h 35m
2026-07-13 FJO646 KRS → LTN Jul 13, 11:50 UTCJul 13, 13:15 UTC1h 25m
2026-07-13 FJO646 CPH → KRS Jul 13, 09:55 UTCJul 13, 10:40 UTC45m
2026-07-12 FJO646 - Jul 12, 14:25 UTCJul 12, 16:30 UTC2h 5m
2026-07-12 FJO646 - Jul 12, 10:55 UTCJul 12, 12:50 UTC1h 55m
2026-07-12 FJO646 - Jul 12, 08:45 UTCJul 12, 09:25 UTC40m
2026-07-11 FJO646 LIN → STN Jul 11, 17:55 UTCJul 11, 19:25 UTC1h 30m
2026-07-11 FJO646 IBZ → LIN Jul 11, 14:15 UTCJul 11, 15:45 UTC1h 30m
2026-07-11 FJO646 - Jul 11, 11:30 UTCJul 11, 13:20 UTC1h 50m
2026-07-10 FJO646 - Jul 10, 17:45 UTCJul 10, 20:25 UTC2h 40m
2026-07-10 FJO646 - Jul 10, 12:10 UTCJul 10, 13:15 UTC1h 5m
2026-07-09 FJO646 - Jul 9, 13:40 UTCJul 9, 16:25 UTC2h 45m
2026-07-09 FJO646 - Jul 9, 11:00 UTCJul 9, 12:00 UTC1h 0m
2026-07-07 FJO646 BQH → OLB Jul 7, 16:45 UTCJul 7, 18:40 UTC1h 55m
2026-07-07 FJO646 NCE → BQH Jul 7, 09:45 UTCJul 7, 11:25 UTC1h 40m
2026-07-06 FJO646 - Jul 6, 12:20 UTCJul 6, 13:30 UTC1h 10m
2026-07-06 FJO646 - Jul 6, 08:20 UTCJul 6, 09:35 UTC1h 15m
2026-07-06 FJO646 - Jul 6, 05:50 UTCJul 6, 06:40 UTC50m
2026-07-05 FJO646 - Jul 5, 16:15 UTCJul 5, 17:00 UTC45m
2026-07-05 FJO646 - Jul 5, 12:35 UTCJul 5, 15:05 UTC2h 30m
2026-07-04 FJO646 - Jul 4, 12:15 UTCJul 4, 12:25 UTC10m
2026-07-04 FJO646 - Jul 4, 08:15 UTCJul 4, 09:45 UTC1h 30m
2026-07-03 FJO646 LBG → BOD Jul 3, 15:35 UTCJul 3, 16:25 UTC50m
2026-07-03 FJO646 - Jul 3, 12:45 UTCJul 3, 14:35 UTC1h 50m
2026-07-03 FJO646 - Jul 3, 09:05 UTCJul 3, 11:05 UTC2h 0m
2026-07-02 FJO646 - Jul 2, 17:30 UTCJul 2, 18:20 UTC50m
2026-07-02 FJO646 FAB → DUB Jul 2, 14:45 UTCJul 2, 15:45 UTC1h 0m
2026-06-30 FJO646 DUB → FAB Jun 30, 17:15 UTCJun 30, 18:05 UTC50m
2026-06-30 FJO646 ATH → DUB Jun 30, 12:30 UTCJun 30, 16:05 UTC3h 35m
2026-06-30 FJO646 - Jun 30, 07:55 UTCJun 30, 08:30 UTC35m
2026-06-29 FJO646 - Jun 29, 15:39 UTCJun 29, 17:34 UTC1h 55m
2026-06-29 FJO646 - Jun 29, 10:55 UTCJun 29, 11:39 UTC45m
2026-06-28 FJO646 - Jun 28, 13:00 UTCJun 28, 14:54 UTC1h 55m
2026-06-20 FJO646 - Jun 20, 12:54 UTCJun 20, 16:14 UTC3h 20m
2026-06-19 FJO646 ATH → ISL Jun 19, 21:39 UTCJun 19, 22:34 UTC55m
2026-06-19 FJO646 - Jun 19, 14:15 UTCJun 19, 15:49 UTC1h 35m
2026-06-18 FJO646 - Jun 18, 15:35 UTCJun 19, 14:59 UTC23h 24m
2026-06-18 FJO646 - Jun 18, 13:40 UTCJun 18, 15:40 UTC2h 0m
2026-06-17 FJO646 YQT → MLA Jun 17, 02:10 UTCJun 17, 11:00 UTC8h 50m
2026-06-16 FJO646 - Jun 16, 22:15 UTCJun 17, 01:05 UTC2h 50m
2026-06-11 FJO646 - Jun 11, 13:20 UTCJun 11, 21:00 UTC7h 40m

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 9H-SKI page for operator, model, and routing details .

Mode-S 4D215C frequently asked

What is Mode-S code 4D215C?
4D215C is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-SKI.
Where is Mode-S 4D215C registered?
Mode-S code 4D215C is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D215C 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 4D215C, octal 23220534, decimal 5,054,812.
What flights does 4D215C operate?
Mode-S 4D215C has broadcast 2 distinct callsigns, including FJO646, 9H646FX.