Apparatus

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sensors Mode-S transponder

7503B1

ICAO 24-bit transponder address · allocated to Malaysia

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

Hex
7503B1
Octal
35201661
Decimal
7,668,657
Country
MY
Tail
9M-AJG
Type
A320
No current signal · last broadcast Jul 26, 14:15 UTC
Flights observed
470
Distinct callsigns
20
Country
MY
Last broadcast
Jul 26, 14:15 UTC

Last known position

Most recent position reported by Mode-S 7503B1.

Country allocation

The ICAO 24-bit address 7503B1 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
AXM171 AirAsia 12 2026-06-06
AXM170 AirAsia 11 2026-06-06
AXM472 - 8 2026-07-19
AXM471 - 8 2026-07-19
AXM22 AirAsia 8 2026-06-23
AXM73 AirAsia 7 2026-05-27
AXM407 - 7 2026-07-19
AXM885 - 6 2026-06-24
AXM884 - 6 2026-06-24
AXM72 AirAsia 6 2026-05-26
AXM406 - 6 2026-07-19
AXM123 - 6 2026-07-20
AXM649 AirAsia 5 2026-05-23
AXM648 AirAsia 5 2026-05-23
AXM6433 AirAsia 5 2026-06-04
AXM6432 AirAsia 5 2026-06-04
AXM462 - 5 2026-06-24
AXM461 - 5 2026-06-24
AXM46 - 5 2026-07-11
AXM39 AirAsia 5 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AXM5647 MYY → KUL Jul 26, 09:35 UTCJul 26, 14:15 UTC4h 40m
2026-07-26 AXM6319 LGK → KUL Jul 26, 07:25 UTCJul 26, 08:00 UTC35m
2026-07-26 AXM6318 BKI → TPE Jul 26, 05:50 UTCJul 26, 06:20 UTC30m
2026-07-26 AXM6223 TGG → KUL Jul 26, 03:50 UTCJul 26, 04:00 UTC10m
2026-07-26 AXM6222 KUL → TGG Jul 26, 02:15 UTCJul 26, 02:30 UTC15m
2026-07-26 AXM6123 PEN → KUL Jul 26, 00:20 UTCJul 26, 00:55 UTC35m
2026-07-25 AXM6124 KUL → PEN Jul 25, 22:45 UTCJul 25, 23:15 UTC30m
2026-07-25 AXM5195 SDK → KUL Jul 25, 11:15 UTCJul 25, 13:40 UTC2h 25m
2026-07-25 AXM5194 KUL → SDK Jul 25, 07:45 UTCJul 25, 09:50 UTC2h 5m
2026-07-25 AXM6305 LGK → KUL Jul 25, 05:45 UTCJul 25, 06:30 UTC45m
2026-07-25 AXM6304 KUL → LGK Jul 25, 04:10 UTCJul 25, 04:40 UTC30m
2026-07-24 AXM5877 SBW → KUL Jul 24, 22:30 UTCJul 25, 03:05 UTC4h 35m
2026-07-24 AXM5749 - Jul 24, 07:15 UTCJul 24, 13:00 UTC5h 45m
2026-07-24 AXM6125 PEN → KUL Jul 24, 05:35 UTCJul 24, 06:15 UTC40m
2026-07-24 AXM6126 KUL → PEN Jul 24, 04:15 UTCJul 24, 04:45 UTC30m
2026-07-23 AXM5203 KCH → KUL Jul 23, 23:05 UTCJul 24, 03:05 UTC4h 0m
2026-07-23 AXM6154 PEN → KUL Jul 23, 09:00 UTCJul 23, 09:40 UTC40m
2026-07-23 AXM6153 KUL → PEN Jul 23, 07:35 UTCJul 23, 08:05 UTC30m
2026-07-23 AXM6443 KBR → KUL Jul 23, 06:20 UTCJul 23, 06:40 UTC20m
2026-07-23 AXM6442 KUL → KBR Jul 23, 04:20 UTCJul 23, 04:40 UTC20m
2026-07-23 AXM891 DMK → KUL Jul 23, 02:30 UTCJul 23, 02:50 UTC20m
2026-07-23 AXM891 DMK → KUL Jul 23, 01:00 UTCJul 23, 01:35 UTC35m
2026-07-22 AXM890 KUL → DMK Jul 22, 22:10 UTCJul 23, 00:05 UTC1h 55m
2026-07-22 AXM346 KUL → YIA Jul 22, 01:55 UTCJul 22, 13:50 UTC11h 55m
2026-07-21 AXM38 COK → KUL Jul 21, 20:50 UTCJul 21, 21:15 UTC25m
2026-07-21 AXM39 KUL → COK Jul 21, 16:00 UTCJul 21, 16:10 UTC10m
2026-07-21 AXM39 KUL → COK Jul 21, 12:30 UTCJul 21, 12:55 UTC25m
2026-07-21 AXM523 SGN → KUL Jul 21, 11:10 UTCJul 21, 11:25 UTC15m
2026-07-21 AXM522 - Jul 21, 06:55 UTCJul 21, 07:15 UTC20m
2026-07-21 AXM5193 SDK → KUL Jul 21, 01:55 UTCJul 21, 04:15 UTC2h 20m
2026-07-20 AXM5192 - Jul 20, 22:25 UTCJul 21, 00:35 UTC2h 10m
2026-07-20 AXM123 - Jul 20, 16:35 UTCJul 20, 17:00 UTC25m
2026-07-20 AXM123 - Jul 20, 13:35 UTCJul 20, 13:45 UTC10m
2026-07-20 AXM122 - Jul 20, 12:05 UTCJul 20, 12:20 UTC15m
2026-07-20 AXM122 - Jul 20, 08:30 UTCJul 20, 09:00 UTC30m
2026-07-20 AXM347 YIA → KUL Jul 20, 05:15 UTCJul 20, 07:25 UTC2h 10m
2026-07-20 AXM346 - Jul 20, 02:20 UTCJul 20, 04:05 UTC1h 45m
2026-07-19 AXM38 COK → KUL Jul 19, 17:15 UTCJul 19, 21:05 UTC3h 50m
2026-07-19 AXM39 KUL → COK Jul 19, 15:55 UTCJul 19, 16:15 UTC20m
2026-07-19 AXM39 KUL → COK Jul 19, 12:35 UTCJul 19, 12:55 UTC20m
2026-07-19 AXM428 - Jul 19, 09:00 UTCJul 19, 09:25 UTC25m
2026-07-19 AXM429 - Jul 19, 07:40 UTCJul 19, 07:55 UTC15m
2026-07-19 AXM407 - Jul 19, 05:30 UTCJul 19, 06:05 UTC35m
2026-07-19 AXM406 - Jul 19, 03:45 UTCJul 19, 04:15 UTC30m
2026-07-19 AXM471 - Jul 19, 01:45 UTCJul 19, 02:30 UTC45m
2026-07-19 AXM472 - Jul 19, 00:05 UTCJul 19, 00:35 UTC30m
2026-07-18 AXM100 - Jul 18, 05:25 UTCJul 18, 13:35 UTC8h 10m
2026-07-18 AXM5193 - Jul 18, 01:50 UTCJul 18, 04:10 UTC2h 21m
2026-07-17 AXM5192 - Jul 17, 22:25 UTCJul 18, 00:39 UTC2h 15m
2026-07-17 AXM5193 - Jul 17, 04:44 UTCJul 17, 07:05 UTC2h 20m

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

Mode-S 7503B1 frequently asked

What is Mode-S code 7503B1?
7503B1 is an ICAO 24-bit transponder address. Allocated to Malaysia. Assigned to 9M-AJG.
Where is Mode-S 7503B1 registered?
Mode-S code 7503B1 is allocated to Malaysia (MY). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7503B1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7503B1, octal 35201661, decimal 7,668,657.
What flights does 7503B1 operate?
Mode-S 7503B1 has broadcast 20 distinct callsigns, including AXM171, AXM170, AXM472, AXM471, AXM22.