sensors Mode-S transponder

8A0442

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-AZJ · AIRBUS A-320

Hex
8A0442
Octal
42402102
Decimal
9,045,058
Country
ID
Tail
PK-AZJ
Type
A320
No current signal · last broadcast 12h ago
Flights observed
7
Distinct callsigns
6
Country
ID
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 8A0442.

Country allocation

The ICAO 24-bit address 8A0442 falls within the block assigned to Indonesia (ID) by ICAO Annex 10, Volume III. Every aircraft registered in Indonesia 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 6 distinct

Callsign Airline Flights Last seen
AWQ388 - 2 2026-04-13
AWQ389 - 1 2026-04-13
AWQ327 Indonesia AirAsia 1 2026-04-13
AWQ326 Indonesia AirAsia 1 2026-04-13
AWQ325 Indonesia AirAsia 1 2026-04-14
AWQ324 Indonesia AirAsia 1 2026-04-14

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 AWQ325 KUL → SUB Apr 14, 10:00 UTCApr 14, 10:35 UTC35m
2026-04-14 AWQ324 SUB → KUL Apr 14, 08:10 UTCApr 14, 08:50 UTC40m
2026-04-13 AWQ327 KUL → SUB Apr 13, 19:50 UTCApr 13, 20:15 UTC25m
2026-04-13 AWQ326 SUB → KUL Apr 13, 15:20 UTCApr 13, 15:55 UTC35m
2026-04-13 AWQ389 - Apr 13, 10:20 UTCApr 13, 11:00 UTC40m
2026-04-13 AWQ388 - Apr 13, 08:20 UTCApr 13, 08:45 UTC25m
2026-04-13 AWQ388 - Apr 13, 08:05 UTCApr 13, 08:15 UTC10m

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 PK-AZJ page for operator, model, and routing details .

Mode-S 8A0442 frequently asked

What is Mode-S code 8A0442?
8A0442 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-AZJ.
Where is Mode-S 8A0442 registered?
Mode-S code 8A0442 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0442 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 8A0442, octal 42402102, decimal 9,045,058.
What flights does 8A0442 operate?
Mode-S 8A0442 has broadcast 6 distinct callsigns, including AWQ388, AWQ389, AWQ327, AWQ326, AWQ325.