Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4D2351

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-AMK · AIRBUS A-320

Hex
4D2351
Octal
23221521
Decimal
5,055,313
Country
MT
Tail
9H-AMK
Type
A320
No current signal · last broadcast 6h ago
Flights observed
346
Distinct callsigns
20
Country
MT
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4D2351.

Country allocation

The ICAO 24-bit address 4D2351 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
DAH3015 - 14 2026-06-27
DAH3014 - 14 2026-06-27
DAH1021 - 11 2026-07-12
DAH1020 - 11 2026-07-12
DAH1023 - 10 2026-07-12
DAH1022 - 10 2026-07-12
DAH1001 - 9 2026-07-09
DAH3019 - 8 2026-06-16
DAH1535 - 8 2026-07-13
DAH1041 - 8 2026-06-20
DAH1000 - 8 2026-07-09
DAH3018 Air Algerie 7 2026-06-15
DAH1040 Air Algerie 7 2026-06-20
DAH1033 Air Algerie 7 2026-05-30
DAH1032 Air Algerie 7 2026-05-30
DAH1012 - 7 2026-06-24
DAH3013 - 6 2026-07-03
DAH1534 - 6 2026-07-13
DAH1045 - 6 2026-07-05
DAH1044 - 6 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAH1235 - Jul 13, 19:05 UTCJul 13, 21:05 UTC2h 0m
2026-07-13 DAH1234 - Jul 13, 15:10 UTCJul 13, 17:05 UTC1h 55m
2026-07-13 DAH1535 - Jul 13, 11:50 UTCJul 13, 13:45 UTC1h 55m
2026-07-13 DAH1534 - Jul 13, 07:10 UTCJul 13, 09:05 UTC1h 55m
2026-07-13 DAH3031 - Jul 13, 00:05 UTCJul 13, 03:30 UTC3h 25m
2026-07-12 DAH3030 - Jul 12, 20:35 UTCJul 12, 22:45 UTC2h 10m
2026-07-12 DAH1021 - Jul 12, 15:40 UTCJul 12, 16:40 UTC1h 0m
2026-07-12 DAH1020 - Jul 12, 13:15 UTCJul 12, 14:25 UTC1h 10m
2026-07-12 DAH1023 - Jul 12, 09:45 UTCJul 12, 10:40 UTC55m
2026-07-12 DAH1022 - Jul 12, 07:25 UTCJul 12, 08:30 UTC1h 5m
2026-07-11 DAH1109 - Jul 11, 11:20 UTCJul 11, 20:15 UTC8h 55m
2026-07-11 DAH1108 - Jul 11, 08:10 UTCJul 11, 09:55 UTC1h 45m
2026-07-10 DAH1021 - Jul 10, 15:15 UTCJul 10, 16:25 UTC1h 10m
2026-07-10 DAH1020 ALG → MRS Jul 10, 12:50 UTCJul 10, 13:55 UTC1h 5m
2026-07-10 DAH1023 - Jul 10, 09:55 UTCJul 10, 11:05 UTC1h 10m
2026-07-10 DAH1022 - Jul 10, 07:20 UTCJul 10, 08:30 UTC1h 10m
2026-07-10 DAH4037 - Jul 10, 01:45 UTCJul 10, 03:35 UTC1h 50m
2026-07-09 DAH4036 - Jul 9, 20:35 UTCJul 9, 23:30 UTC2h 55m
2026-07-09 DAH1001 - Jul 9, 13:55 UTCJul 9, 15:40 UTC1h 45m
2026-07-09 DAH1000 - Jul 9, 09:50 UTCJul 9, 11:45 UTC1h 55m
2026-07-08 DAH1217 - Jul 8, 14:10 UTCJul 8, 15:45 UTC1h 35m
2026-07-08 DAH1216 - Jul 8, 10:45 UTCJul 8, 12:40 UTC1h 55m
2026-07-07 DAH1191 - Jul 7, 20:10 UTCJul 7, 21:20 UTC1h 10m
2026-07-07 DAH1190 - Jul 7, 17:45 UTCJul 7, 19:00 UTC1h 15m
2026-07-07 DAH4001 - Jul 7, 06:55 UTCJul 7, 09:55 UTC3h 0m
2026-07-07 DAH4037 - Jul 7, 01:55 UTCJul 7, 04:35 UTC2h 40m
2026-07-06 DAH4036 - Jul 6, 20:50 UTCJul 6, 23:05 UTC2h 15m
2026-07-06 DAH1037 - Jul 6, 16:25 UTCJul 6, 17:50 UTC1h 25m
2026-07-06 DAH1154 - Jul 6, 13:50 UTCJul 6, 15:10 UTC1h 20m
2026-07-06 DAH1155 - Jul 6, 11:15 UTCJul 6, 12:30 UTC1h 15m
2026-07-06 DAH1036 - Jul 6, 08:25 UTCJul 6, 09:45 UTC1h 20m
2026-07-06 DAH6921 - Jul 6, 04:35 UTCJul 6, 04:50 UTC15m
2026-07-05 DAH1045 - Jul 5, 20:40 UTCJul 5, 21:50 UTC1h 10m
2026-07-05 DAH1044 - Jul 5, 17:35 UTCJul 5, 18:45 UTC1h 10m
2026-07-05 DAH6213 QSF → ALG Jul 5, 15:00 UTCJul 5, 15:25 UTC25m
2026-07-05 DAH1109 ORY → QSF Jul 5, 11:50 UTCJul 5, 13:35 UTC1h 45m
2026-07-05 DAH1108 - Jul 5, 08:20 UTCJul 5, 10:20 UTC2h 0m
2026-07-05 DAH6212 - Jul 5, 06:50 UTCJul 5, 07:00 UTC10m
2026-07-04 AH6961 - Jul 4, 23:35 UTCJul 5, 04:05 UTC4h 30m
2026-07-04 DAH4002 - Jul 4, 16:35 UTCJul 4, 19:35 UTC3h 0m
2026-07-04 DAH6213 QSF → ALG Jul 4, 14:20 UTCJul 4, 14:35 UTC15m
2026-07-04 DAH1109 - Jul 4, 10:55 UTCJul 4, 12:50 UTC1h 55m
2026-07-04 DAH1108 - Jul 4, 07:50 UTCJul 4, 09:35 UTC1h 45m
2026-07-03 DAH3013 - Jul 3, 18:15 UTCJul 3, 20:50 UTC2h 35m
2026-07-03 DAH3012 - Jul 3, 14:15 UTCJul 3, 16:30 UTC2h 15m
2026-07-03 DAH4001 - Jul 3, 09:10 UTCJul 3, 09:20 UTC10m
2026-07-03 DAH4000 - Jul 3, 06:25 UTCJul 3, 06:35 UTC10m
2026-07-02 DAH3017 - Jul 2, 14:35 UTCJul 2, 17:25 UTC2h 50m
2026-07-02 DAH3016 - Jul 2, 10:45 UTCJul 2, 12:50 UTC2h 5m
2026-07-01 DAH1235 - Jul 1, 19:10 UTCJul 1, 20:45 UTC1h 35m

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

Mode-S 4D2351 frequently asked

What is Mode-S code 4D2351?
4D2351 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-AMK.
Where is Mode-S 4D2351 registered?
Mode-S code 4D2351 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2351 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2351, octal 23221521, decimal 5,055,313.
What flights does 4D2351 operate?
Mode-S 4D2351 has broadcast 20 distinct callsigns, including DAH3015, DAH3014, DAH1021, DAH1020, DAH1023.