Apparatus

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sensors Mode-S transponder

4D20EA

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-VCH · BOMBARDIER BD-100 Challenger 350

Hex
4D20EA
Octal
23220352
Decimal
5,054,698
Country
MT
Tail
9H-VCH
Type
CL35
No current signal · last broadcast 1d ago
Flights observed
54
Distinct callsigns
1
Country
MT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4D20EA.

Country allocation

The ICAO 24-bit address 4D20EA 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 1 distinct

Callsign Airline Flights Last seen
AS2633 - 54 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 AS2633 - Jul 24, 13:50 UTCJul 24, 15:45 UTC1h 55m
2026-07-24 AS2633 - Jul 24, 12:50 UTCJul 24, 13:20 UTC30m
2026-07-24 AS2633 - Jul 24, 04:10 UTCJul 24, 04:45 UTC35m
2026-07-24 AS2633 - Jul 24, 00:15 UTCJul 24, 03:10 UTC2h 55m
2026-07-19 AS2633 - Jul 19, 12:10 UTCJul 19, 15:50 UTC3h 40m
2026-07-19 AS2633 - Jul 19, 04:00 UTCJul 19, 04:35 UTC35m
2026-07-19 AS2633 - Jul 19, 00:00 UTCJul 19, 02:25 UTC2h 25m
2026-07-17 AS2633 - Jul 17, 12:15 UTCJul 17, 15:35 UTC3h 20m
2026-07-17 AS2633 - Jul 17, 07:14 UTCJul 17, 07:44 UTC30m
2026-07-17 AS2633 - Jul 17, 04:35 UTCJul 17, 05:10 UTC35m
2026-07-17 AS2633 - Jul 17, 00:10 UTCJul 17, 03:50 UTC3h 40m
2026-07-16 AS2633 - Jul 16, 13:40 UTCJul 16, 16:30 UTC2h 50m
2026-07-16 AS2633 - Jul 16, 11:05 UTCJul 16, 12:14 UTC1h 10m
2026-07-16 AS2633 - Jul 16, 00:20 UTCJul 16, 10:25 UTC10h 5m
2026-07-15 AS2633 - Jul 15, 13:55 UTCJul 15, 15:45 UTC1h 50m
2026-07-15 AS2633 - Jul 15, 00:00 UTCJul 15, 13:00 UTC13h 0m
2026-07-14 AS2633 - Jul 14, 13:40 UTCJul 14, 15:05 UTC1h 25m
2026-07-14 AS2633 - Jul 14, 07:35 UTCJul 14, 09:55 UTC2h 20m
2026-07-14 AS2633 - Jul 14, 06:25 UTCJul 14, 06:55 UTC30m
2026-07-14 AS2633 - Jul 14, 01:30 UTCJul 14, 04:35 UTC3h 5m
2026-07-13 AS2633 - Jul 13, 23:55 UTCJul 14, 00:50 UTC55m
2026-07-13 AS2633 - Jul 13, 02:30 UTCJul 13, 05:31 UTC3h 0m
2026-07-13 AS2633 - Jul 13, 00:01 UTCJul 13, 00:45 UTC45m
2026-07-11 AS2633 - Jul 11, 08:40 UTCJul 11, 13:45 UTC5h 5m
2026-07-11 AS2633 - Jul 11, 06:05 UTCJul 11, 06:30 UTC25m
2026-07-10 AS2633 - Jul 10, 23:55 UTCJul 11, 03:20 UTC3h 25m
2026-07-10 AS2633 - Jul 10, 11:15 UTCJul 10, 12:40 UTC1h 25m
2026-07-10 AS2633 - Jul 10, 05:30 UTCJul 10, 06:25 UTC55m
2026-07-10 AS2633 - Jul 10, 04:20 UTCJul 10, 05:00 UTC40m
2026-07-09 AS2633 - Jul 9, 23:50 UTCJul 10, 03:25 UTC3h 35m
2026-07-08 AS2633 - Jul 8, 23:45 UTCJul 9, 13:30 UTC13h 45m
2026-07-08 AS2633 - Jul 8, 00:10 UTCJul 8, 01:45 UTC1h 35m
2026-07-06 AS2633 - Jul 6, 13:45 UTCJul 6, 15:05 UTC1h 20m
2026-07-06 AS2633 - Jul 6, 01:25 UTCJul 6, 12:05 UTC10h 40m
2026-07-05 AS2633 - Jul 5, 23:55 UTCJul 6, 00:50 UTC55m
2026-07-04 AS2633 - Jul 4, 12:50 UTCJul 4, 14:30 UTC1h 40m
2026-07-04 AS2633 - Jul 4, 06:30 UTCJul 4, 06:40 UTC10m
2026-07-03 AS2633 - Jul 3, 23:50 UTCJul 4, 05:10 UTC5h 20m
2026-07-03 AS2633 - Jul 3, 02:20 UTCJul 3, 03:15 UTC55m
2026-07-02 AS2633 - Jul 2, 23:45 UTCJul 3, 01:05 UTC1h 20m
2026-06-27 AS2633 - Jun 27, 00:39 UTCJun 27, 02:25 UTC1h 45m
2026-06-23 AS2633 - Jun 23, 01:54 UTCJun 23, 02:15 UTC20m
2026-06-23 AS2633 MLA → MLA Jun 23, 01:30 UTCJun 23, 01:45 UTC15m
2026-06-23 AS2633 MLA → MLA Jun 23, 01:04 UTCJun 23, 01:25 UTC20m
2026-06-23 AS2633 MLA → MLA Jun 23, 00:35 UTCJun 23, 01:00 UTC25m
2026-06-23 AS2633 MLA → MLA Jun 23, 00:00 UTCJun 23, 00:30 UTC30m
2026-06-15 AS2633 - Jun 15, 00:15 UTCJun 15, 13:45 UTC13h 30m
2026-06-11 AS2633 - Jun 11, 11:30 UTCJun 11, 13:45 UTC2h 15m
2026-06-11 AS2633 - Jun 11, 10:20 UTCJun 11, 10:55 UTC35m
2026-06-11 AS2633 - Jun 11, 00:00 UTCJun 11, 09:40 UTC9h 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-VCH page for operator, model, and routing details .

Mode-S 4D20EA frequently asked

What is Mode-S code 4D20EA?
4D20EA is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VCH.
Where is Mode-S 4D20EA registered?
Mode-S code 4D20EA is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D20EA 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 4D20EA, octal 23220352, decimal 5,054,698.
What flights does 4D20EA operate?
Mode-S 4D20EA has broadcast 1 distinct callsign, including AS2633.