Apparatus

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sensors Mode-S transponder

4D2197

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-LOJ · BOMBARDIER Regional Jet CRJ-1000

Hex
4D2197
Octal
23220627
Decimal
5,054,871
Country
MT
Tail
9H-LOJ
Type
CRJX
No current signal · last broadcast 7d ago
Flights observed
58
Distinct callsigns
2
Country
MT
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S 4D2197.

Country allocation

The ICAO 24-bit address 4D2197 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
9HLRSM - 39 2026-07-16
CPV895 - 19 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPV895 - Jul 26, 11:35 UTCJul 26, 11:50 UTC15m
2026-07-26 CPV895 - Jul 26, 11:15 UTCJul 26, 11:25 UTC10m
2026-07-25 CPV895 - Jul 25, 10:00 UTCJul 25, 10:25 UTC25m
2026-07-25 CPV895 - Jul 25, 08:00 UTCJul 25, 08:25 UTC25m
2026-07-24 CPV895 - Jul 24, 14:25 UTCJul 24, 15:15 UTC50m
2026-07-24 CPV895 - Jul 24, 10:20 UTCJul 24, 10:40 UTC20m
2026-07-24 CPV895 - Jul 24, 08:45 UTCJul 24, 08:55 UTC10m
2026-07-22 CPV895 - Jul 22, 18:10 UTCJul 22, 18:15 UTC5m
2026-07-21 CPV895 - Jul 21, 17:10 UTCJul 21, 17:35 UTC25m
2026-07-21 CPV895 - Jul 21, 14:25 UTCJul 21, 14:50 UTC25m
2026-07-20 CPV895 - Jul 20, 09:30 UTCJul 20, 09:40 UTC10m
2026-07-20 CPV895 - Jul 20, 08:25 UTCJul 20, 08:50 UTC25m
2026-07-18 CPV895 - Jul 18, 13:40 UTCJul 18, 13:50 UTC10m
2026-07-18 CPV895 - Jul 18, 11:40 UTCJul 18, 11:50 UTC10m
2026-07-18 CPV895 - Jul 18, 10:55 UTCJul 18, 11:05 UTC10m
2026-07-18 CPV895 - Jul 18, 08:50 UTCJul 18, 09:10 UTC20m
2026-07-17 CPV895 - Jul 17, 13:25 UTCJul 17, 13:35 UTC10m
2026-07-17 CPV895 - Jul 17, 11:04 UTCJul 17, 11:15 UTC10m
2026-07-17 CPV895 - Jul 17, 07:35 UTCJul 17, 08:10 UTC35m
2026-07-16 9HLRSM - Jul 16, 16:55 UTCJul 16, 17:25 UTC30m
2026-07-16 9HLRSM - Jul 16, 11:15 UTCJul 16, 11:25 UTC10m
2026-07-16 9HLRSM - Jul 16, 09:45 UTCJul 16, 10:15 UTC30m
2026-07-10 9HLRSM - Jul 10, 14:45 UTCJul 10, 15:00 UTC15m
2026-07-10 9HLRSM - Jul 10, 13:25 UTCJul 10, 13:35 UTC10m
2026-07-09 9HLRSM - Jul 9, 11:50 UTCJul 9, 12:15 UTC25m
2026-07-09 9HLRSM - Jul 9, 08:25 UTCJul 9, 09:05 UTC40m
2026-07-06 9HLRSM - Jul 6, 16:55 UTCJul 6, 17:20 UTC25m
2026-07-06 9HLRSM - Jul 6, 15:55 UTCJul 6, 16:20 UTC25m
2026-07-06 9HLRSM - Jul 6, 14:40 UTCJul 6, 14:55 UTC15m
2026-07-06 9HLRSM - Jul 6, 10:10 UTCJul 6, 10:20 UTC10m
2026-07-05 9HLRSM - Jul 5, 15:55 UTCJul 5, 17:15 UTC1h 20m
2026-07-05 9HLRSM - Jul 5, 15:00 UTCJul 5, 15:15 UTC15m
2026-07-05 9HLRSM - Jul 5, 13:55 UTCJul 5, 14:05 UTC10m
2026-07-03 9HLRSM - Jul 3, 15:30 UTCJul 3, 15:50 UTC20m
2026-07-03 9HLRSM - Jul 3, 14:05 UTCJul 3, 14:30 UTC25m
2026-07-03 9HLRSM - Jul 3, 12:50 UTCJul 3, 13:10 UTC20m
2026-07-03 9HLRSM - Jul 3, 10:25 UTCJul 3, 11:40 UTC1h 15m
2026-07-03 9HLRSM - Jul 3, 06:55 UTCJul 3, 07:20 UTC25m
2026-07-02 9HLRSM - Jul 2, 14:55 UTCJul 2, 15:05 UTC10m
2026-07-02 9HLRSM - Jul 2, 13:45 UTCJul 2, 14:15 UTC30m
2026-07-02 9HLRSM - Jul 2, 08:55 UTCJul 2, 09:10 UTC15m
2026-06-30 9HLRSM - Jun 30, 12:35 UTCJun 30, 13:00 UTC25m
2026-06-30 9HLRSM - Jun 30, 09:30 UTCJun 30, 11:00 UTC1h 30m
2026-06-29 9HLRSM - Jun 29, 10:15 UTCJun 29, 10:24 UTC10m
2026-06-29 9HLRSM - Jun 29, 09:14 UTCJun 29, 09:25 UTC10m
2026-06-26 9HLRSM - Jun 26, 12:14 UTCJun 26, 12:59 UTC45m
2026-06-26 9HLRSM - Jun 26, 05:44 UTCJun 26, 06:29 UTC45m
2026-06-25 9HLRSM - Jun 25, 09:05 UTCJun 25, 09:14 UTC10m
2026-06-25 9HLRSM - Jun 25, 07:39 UTCJun 25, 07:59 UTC20m
2026-06-24 9HLRSM - Jun 24, 15:24 UTCJun 24, 15:35 UTC10m

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

Mode-S 4D2197 frequently asked

What is Mode-S code 4D2197?
4D2197 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-LOJ.
Where is Mode-S 4D2197 registered?
Mode-S code 4D2197 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2197 broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2197, octal 23220627, decimal 5,054,871.
What flights does 4D2197 operate?
Mode-S 4D2197 has broadcast 2 distinct callsigns, including 9HLRSM, CPV895.