Apparatus

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sensors Mode-S transponder

4D204D

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-MIM · DE HAVILLAND DHC-8-400 Dash 8

Hex
4D204D
Octal
23220115
Decimal
5,054,541
Country
MT
Tail
9H-MIM
Type
DH8D
No current signal · last broadcast 12h ago
Flights observed
90
Distinct callsigns
20
Country
MT
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4D204D.

Country allocation

The ICAO 24-bit address 4D204D 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 20 distinct

Callsign Airline Flights Last seen
UVL221 - 5 2026-07-12
UVL220 - 5 2026-07-12
UVL219 - 5 2026-07-11
UVL218 - 5 2026-07-11
UVL822 - 4 2026-06-11
UVL821 - 4 2026-06-11
UVL820 - 4 2026-06-11
UVL217 - 4 2026-07-11
UVL216 - 4 2026-07-11
UVL214 - 4 2026-07-17
UVL213 - 4 2026-07-17
UVL212 - 4 2026-07-17
UVL211 - 3 2026-07-16
UVL210 - 3 2026-07-16
UVL7416 - 2 2026-04-16
UVL718F - 2 2026-06-17
UVL716F - 2 2026-04-16
UVL814P - 1 2026-07-01
UVL775F - 1 2026-05-07
UVL775 - 1 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 UVL214 SKG → INN Jul 17, 11:35 UTCJul 17, 14:00 UTC2h 25m
2026-07-17 UVL213 - Jul 17, 08:40 UTCJul 17, 09:10 UTC30m
2026-07-17 UVL212 - Jul 17, 04:39 UTCJul 17, 06:20 UTC1h 40m
2026-07-16 UVL211 - Jul 16, 10:35 UTCJul 16, 13:30 UTC2h 55m
2026-07-16 UVL210 - Jul 16, 06:45 UTCJul 16, 09:10 UTC2h 25m
2026-07-12 UVL221 - Jul 12, 09:45 UTCJul 12, 12:25 UTC2h 40m
2026-07-12 UVL220 - Jul 12, 06:10 UTCJul 12, 08:45 UTC2h 35m
2026-07-11 UVL219 - Jul 11, 16:20 UTCJul 11, 18:35 UTC2h 15m
2026-07-11 UVL218 INN → EFL Jul 11, 12:20 UTCJul 11, 14:45 UTC2h 25m
2026-07-11 UVL217 - Jul 11, 08:10 UTCJul 11, 10:30 UTC2h 20m
2026-07-11 UVL216 - Jul 11, 04:55 UTCJul 11, 07:05 UTC2h 10m
2026-07-10 UVL214 - Jul 10, 10:30 UTCJul 10, 12:55 UTC2h 25m
2026-07-10 UVL213 - Jul 10, 08:15 UTCJul 10, 08:45 UTC30m
2026-07-10 UVL212 - Jul 10, 04:45 UTCJul 10, 06:25 UTC1h 40m
2026-07-09 UVL211 - Jul 9, 10:35 UTCJul 9, 13:40 UTC3h 5m
2026-07-09 UVL210 - Jul 9, 06:50 UTCJul 9, 09:20 UTC2h 30m
2026-07-08 UVL387 - Jul 8, 11:05 UTCJul 8, 12:05 UTC1h 0m
2026-07-08 UVL386 - Jul 8, 08:45 UTCJul 8, 10:05 UTC1h 20m
2026-07-06 UVL385 - Jul 6, 09:15 UTCJul 6, 11:05 UTC1h 50m
2026-07-06 UVL384 - Jul 6, 06:40 UTCJul 6, 07:20 UTC40m
2026-07-05 UVL221 - Jul 5, 08:55 UTCJul 5, 11:35 UTC2h 40m
2026-07-05 UVL220 - Jul 5, 04:55 UTCJul 5, 07:15 UTC2h 20m
2026-07-04 UVL219 - Jul 4, 16:05 UTCJul 4, 18:30 UTC2h 25m
2026-07-04 UVL218 INN → EFL Jul 4, 12:15 UTCJul 4, 14:30 UTC2h 15m
2026-07-04 UVL217 - Jul 4, 08:40 UTCJul 4, 10:40 UTC2h 0m
2026-07-04 UVL216 - Jul 4, 04:55 UTCJul 4, 06:30 UTC1h 35m
2026-07-03 UVL214 SKG → INN Jul 3, 10:00 UTCJul 3, 12:20 UTC2h 20m
2026-07-03 UVL213 - Jul 3, 08:15 UTCJul 3, 08:40 UTC25m
2026-07-03 UVL212 - Jul 3, 04:35 UTCJul 3, 06:10 UTC1h 35m
2026-07-02 UVL211 - Jul 2, 10:45 UTCJul 2, 13:25 UTC2h 40m
2026-07-02 UVL210 - Jul 2, 06:51 UTCJul 2, 09:25 UTC2h 34m
2026-07-01 UVL814P MLA → INN Jul 1, 06:25 UTCJul 1, 09:00 UTC2h 35m
2026-06-20 UVL722F - Jun 20, 09:39 UTCJun 20, 13:09 UTC3h 30m
2026-06-20 UVL7620 - Jun 20, 07:04 UTCJun 20, 07:59 UTC55m
2026-06-18 UVL7618 - Jun 18, 12:45 UTCJun 18, 14:01 UTC1h 15m
2026-06-17 UVL718F - Jun 17, 16:40 UTCJun 17, 18:50 UTC2h 10m
2026-06-17 UVL717F - Jun 17, 13:45 UTCJun 17, 15:50 UTC2h 5m
2026-06-11 UVL822 MJI → MLA Jun 11, 10:30 UTCJun 11, 11:20 UTC50m
2026-06-11 UVL821 - Jun 11, 08:25 UTCJun 11, 09:45 UTC1h 20m
2026-06-11 UVL820 MLA → BEN Jun 11, 06:25 UTCJun 11, 07:35 UTC1h 10m
2026-06-08 UVL822 BEN → MLA Jun 8, 10:00 UTCJun 8, 11:10 UTC1h 10m
2026-06-08 UVL821 - Jun 8, 08:00 UTCJun 8, 09:05 UTC1h 5m
2026-06-08 UVL820 MLA → MJI Jun 8, 06:15 UTCJun 8, 07:00 UTC45m
2026-06-05 UVL765F - Jun 5, 15:15 UTCJun 5, 17:25 UTC2h 10m
2026-06-05 UVL765 - Jun 5, 10:50 UTCJun 5, 13:40 UTC2h 50m
2026-06-05 - - Jun 5, 09:15 UTCJun 5, 09:30 UTC15m
2026-06-02 UVL763F TIV → DBV Jun 2, 14:00 UTCJun 2, 14:20 UTC20m
2026-06-02 UVL762 - Jun 2, 09:45 UTCJun 2, 12:20 UTC2h 35m
2026-06-02 UVL762F MLA → TLS Jun 2, 05:45 UTCJun 2, 08:30 UTC2h 45m
2026-06-01 UVL822 - Jun 1, 08:30 UTCJun 1, 09:35 UTC1h 5m

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

Mode-S 4D204D frequently asked

What is Mode-S code 4D204D?
4D204D is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-MIM.
Where is Mode-S 4D204D registered?
Mode-S code 4D204D is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D204D broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D204D, octal 23220115, decimal 5,054,541.
What flights does 4D204D operate?
Mode-S 4D204D has broadcast 20 distinct callsigns, including UVL221, UVL220, UVL219, UVL218, UVL822.