Apparatus

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sensors Mode-S transponder

7503BF

ICAO 24-bit transponder address · allocated to Malaysia

Currently assigned to 9M-AJK · AIRBUS A-320

Hex
7503BF
Octal
35201677
Decimal
7,668,671
Country
MY
Tail
9M-AJK
Type
A320
No current signal · last broadcast 23d ago
Flights observed
293
Distinct callsigns
20
Country
MY
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S 7503BF.

Country allocation

The ICAO 24-bit address 7503BF falls within the block assigned to Malaysia (MY) by ICAO Annex 10, Volume III. Every aircraft registered in Malaysia 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
AXM138 AirAsia 6 2026-06-09
AXM881 AirAsia 5 2026-06-07
AXM880 AirAsia 5 2026-06-07
AXM139 AirAsia 5 2026-06-09
AXM123 AirAsia 5 2026-06-15
AXM897 AirAsia 4 2026-06-08
AXM891 AirAsia 4 2026-05-09
AXM5116 - 4 2026-06-16
AXM46 AirAsia 4 2026-06-11
AXM137 AirAsia 4 2026-05-01
AXM9 AirAsia 3 2026-04-30
AXM896 AirAsia 3 2026-06-08
AXM890 AirAsia 3 2026-05-08
AXM715 AirAsia 3 2026-05-08
AXM714 AirAsia 3 2026-05-08
AXM69 AirAsia 3 2026-04-29
AXM68 AirAsia 3 2026-04-29
AXM6433 AirAsia 3 2026-06-08
AXM6432 AirAsia 3 2026-06-08
AXM641 AirAsia 3 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-21 AXM6437 - Jun 21, 08:44 UTCJun 21, 09:04 UTC20m
2026-06-21 AXM2354 - Jun 21, 05:15 UTCJun 21, 06:40 UTC1h 25m
2026-06-21 AXM2353 - Jun 21, 03:49 UTCJun 21, 04:04 UTC15m
2026-06-21 AXM2353 - Jun 21, 00:34 UTCJun 21, 03:14 UTC2h 40m
2026-06-20 AXM6447 KBR → KUL Jun 20, 13:19 UTCJun 20, 13:39 UTC20m
2026-06-20 AXM6446 - Jun 20, 11:25 UTCJun 20, 11:40 UTC15m
2026-06-20 AXM385 - Jun 20, 08:19 UTCJun 20, 09:59 UTC1h 40m
2026-06-20 AXM384 - Jun 20, 07:04 UTCJun 20, 07:19 UTC15m
2026-06-20 AXM384 - Jun 20, 05:39 UTCJun 20, 06:24 UTC45m
2026-06-20 AXM430 - Jun 20, 03:59 UTCJun 20, 04:24 UTC25m
2026-06-20 AXM431 - Jun 20, 02:40 UTCJun 20, 02:59 UTC20m
2026-06-20 AXM432 - Jun 20, 00:54 UTCJun 20, 01:14 UTC20m
2026-06-19 AXM433 - Jun 19, 23:25 UTCJun 19, 23:44 UTC20m
2026-06-19 AXM887 - Jun 19, 10:39 UTCJun 19, 12:29 UTC1h 50m
2026-06-19 AXM886 - Jun 19, 07:09 UTCJun 19, 09:04 UTC1h 55m
2026-06-19 AXM5742 - Jun 19, 00:14 UTCJun 19, 05:54 UTC5h 40m
2026-06-18 AXM6219 - Jun 18, 11:30 UTCJun 18, 11:50 UTC20m
2026-06-18 AXM6218 - Jun 18, 09:55 UTCJun 18, 10:10 UTC15m
2026-06-18 AXM6043 - Jun 18, 06:45 UTCJun 18, 07:10 UTC25m
2026-06-18 AXM5030 - Jun 18, 02:30 UTCJun 18, 02:40 UTC10m
2026-06-18 AXM6042 - Jun 18, 01:00 UTCJun 18, 01:20 UTC20m
2026-06-16 AXM5117 - Jun 16, 09:30 UTCJun 16, 11:49 UTC2h 20m
2026-06-16 AXM5116 - Jun 16, 06:20 UTCJun 16, 08:39 UTC2h 20m
2026-06-16 AXM6443 - Jun 16, 05:05 UTCJun 16, 05:25 UTC20m
2026-06-16 AXM6442 - Jun 16, 03:15 UTCJun 16, 03:30 UTC15m
2026-06-16 AXM402 - Jun 16, 01:19 UTCJun 16, 02:00 UTC40m
2026-06-15 AXM403 - Jun 15, 23:35 UTCJun 16, 00:00 UTC25m
2026-06-15 AXM123 SZX → KUL Jun 15, 16:09 UTCJun 15, 16:30 UTC20m
2026-06-15 AXM123 SZX → KUL Jun 15, 13:20 UTCJun 15, 13:30 UTC10m
2026-06-15 AXM122 - Jun 15, 08:10 UTCJun 15, 08:35 UTC25m
2026-06-15 AXM113 - Jun 15, 05:35 UTCJun 15, 06:10 UTC35m
2026-06-15 AXM112 KUL → CAN Jun 15, 00:20 UTCJun 15, 00:40 UTC20m
2026-06-14 AXM112 KUL → CAN Jun 14, 21:10 UTCJun 14, 21:35 UTC25m
2026-06-14 AXM722 SIN → KUL Jun 14, 15:45 UTCJun 14, 16:25 UTC40m
2026-06-14 AXM723 KUL → SIN Jun 14, 13:45 UTCJun 14, 14:25 UTC40m
2026-06-14 AXM392 KNO → KUL Jun 14, 11:25 UTCJun 14, 11:50 UTC25m
2026-06-14 AXM393 - Jun 14, 09:50 UTCJun 14, 10:05 UTC15m
2026-06-14 AXM6441 KBR → KUL Jun 14, 08:40 UTCJun 14, 08:55 UTC15m
2026-06-14 AXM6440 KUL → KBR Jun 14, 06:50 UTCJun 14, 07:00 UTC10m
2026-06-14 AXM833 - Jun 14, 05:10 UTCJun 14, 05:25 UTC15m
2026-06-14 AXM832 KUL → BKK Jun 14, 02:30 UTCJun 14, 02:45 UTC15m
2026-06-13 AXM6225 - Jun 13, 23:35 UTCJun 14, 01:30 UTC1h 55m
2026-06-13 AXM387 CGK → KUL Jun 13, 12:40 UTCJun 13, 13:45 UTC1h 5m
2026-06-13 AXM386 - Jun 13, 10:45 UTCJun 13, 11:00 UTC15m
2026-06-13 AXM386 - Jun 13, 09:15 UTCJun 13, 10:00 UTC45m
2026-06-13 AXM6319 LGK → KUL Jun 13, 07:35 UTCJun 13, 07:55 UTC20m
2026-06-13 AXM6318 BKI → TPE Jun 13, 05:45 UTCJun 13, 06:00 UTC15m
2026-06-12 AXM441 BDJ → KUL Jun 12, 23:20 UTCJun 13, 04:35 UTC5h 14m
2026-06-12 AXM123 SZX → KUL Jun 12, 16:10 UTCJun 12, 16:35 UTC25m
2026-06-12 AXM122 KUL → SZX Jun 12, 08:05 UTCJun 12, 08:30 UTC25m

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 9M-AJK page for operator, model, and routing details .

Mode-S 7503BF frequently asked

What is Mode-S code 7503BF?
7503BF is an ICAO 24-bit transponder address. Allocated to Malaysia. Assigned to 9M-AJK.
Where is Mode-S 7503BF registered?
Mode-S code 7503BF is allocated to Malaysia (MY). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7503BF broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7503BF, octal 35201677, decimal 7,668,671.
What flights does 7503BF operate?
Mode-S 7503BF has broadcast 20 distinct callsigns, including AXM138, AXM881, AXM880, AXM139, AXM123.