Apparatus

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sensors Mode-S transponder

8A09A3

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-BKT · AIRBUS A-320

Hex
8A09A3
Octal
42404643
Decimal
9,046,435
Country
ID
Tail
PK-BKT
Type
A320
No current signal · last broadcast 2h ago
Flights observed
272
Distinct callsigns
20
Country
ID
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 8A09A3.

Country allocation

The ICAO 24-bit address 8A09A3 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 20 distinct

Callsign Airline Flights Last seen
BTK6007 - 57 2026-07-13
BTK6008 - 34 2026-07-13
BTK6080 Batik Air 9 2026-05-07
BTK7631 Batik Air 8 2026-06-10
BTK7630 Batik Air 8 2026-06-10
BTK6081 Batik Air 7 2026-05-07
BTK6815 Batik Air 5 2026-06-12
BTK6814 Batik Air 5 2026-06-12
BTK7797 Batik Air 3 2026-06-11
BTK7368 - 3 2026-07-14
BTK7309 Batik Air 3 2026-05-16
BTK6805 - 3 2026-07-14
BTK6804 - 3 2026-07-14
BTK6567 - 3 2026-06-22
BTK6566 - 3 2026-06-22
BTK6509 - 3 2026-06-14
BTK6508 - 3 2026-06-13
BTK6378 Batik Air 3 2026-06-08
BTK6375 - 3 2026-07-15
BTK7780 - 2 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 BTK6292 - Jul 15, 02:15 UTCJul 15, 02:40 UTC25m
2026-07-15 BTK6375 - Jul 15, 00:10 UTCJul 15, 01:05 UTC55m
2026-07-14 BTK7368 - Jul 14, 10:40 UTCJul 14, 11:35 UTC55m
2026-07-14 BTK6565 - Jul 14, 09:15 UTCJul 14, 09:30 UTC15m
2026-07-14 BTK6564 - Jul 14, 06:25 UTCJul 14, 07:10 UTC45m
2026-07-14 BTK6805 - Jul 14, 04:20 UTCJul 14, 05:20 UTC1h 0m
2026-07-14 BTK6804 - Jul 14, 02:20 UTCJul 14, 03:15 UTC55m
2026-07-13 BTK6391 - Jul 13, 23:05 UTCJul 13, 23:20 UTC15m
2026-07-13 BTK6008 - Jul 13, 07:35 UTCJul 13, 08:10 UTC35m
2026-07-13 BTK6007 - Jul 13, 05:55 UTCJul 13, 06:25 UTC30m
2026-07-12 BTK6008 - Jul 12, 06:05 UTCJul 12, 06:35 UTC30m
2026-07-12 BTK6007 - Jul 12, 04:20 UTCJul 12, 04:55 UTC35m
2026-07-11 BTK6007 - Jul 11, 06:50 UTCJul 12, 04:55 UTC22h 5m
2026-07-11 BTK6008 - Jul 11, 06:20 UTCJul 11, 06:55 UTC35m
2026-07-11 BTK6008 PER → PER Jul 11, 06:05 UTCJul 11, 06:10 UTC5m
2026-07-11 BTK6007 - Jul 11, 04:20 UTCJul 11, 04:55 UTC35m
2026-07-10 BTK6007 - Jul 10, 06:50 UTCJul 11, 04:55 UTC22h 5m
2026-07-10 BTK6008 - Jul 10, 06:15 UTCJul 11, 04:45 UTC22h 30m
2026-07-10 BTK6007 - Jul 10, 04:25 UTCJul 10, 05:05 UTC40m
2026-07-09 BTK6007 - Jul 9, 06:50 UTCJul 10, 05:05 UTC22h 15m
2026-07-09 BTK6007 - Jul 9, 04:40 UTCJul 9, 05:20 UTC40m
2026-07-08 BTK6007 - Jul 8, 06:50 UTCJul 9, 05:20 UTC22h 30m
2026-07-08 BTK6008 - Jul 8, 06:30 UTCJul 9, 04:45 UTC22h 15m
2026-07-08 BTK6007 KQR → PER Jul 8, 04:35 UTCJul 8, 05:15 UTC40m
2026-07-07 BTK6007 - Jul 7, 06:50 UTCJul 8, 05:15 UTC22h 25m
2026-07-07 BTK6008 - Jul 7, 06:20 UTCJul 8, 04:45 UTC22h 25m
2026-07-07 BTK6007 - Jul 7, 04:30 UTCJul 7, 05:15 UTC45m
2026-07-06 BTK6007 - Jul 6, 06:50 UTCJul 7, 05:15 UTC22h 25m
2026-07-06 BTK6008 - Jul 6, 06:35 UTCJul 7, 04:45 UTC22h 10m
2026-07-06 BTK6007 - Jul 6, 04:45 UTCJul 6, 05:25 UTC40m
2026-07-05 BTK6007 - Jul 5, 06:50 UTCJul 6, 05:25 UTC22h 35m
2026-07-05 BTK6008 - Jul 5, 06:20 UTCJul 6, 04:45 UTC22h 25m
2026-07-05 BTK6007 KQR → PER Jul 5, 04:25 UTCJul 5, 05:05 UTC40m
2026-07-04 BTK6007 - Jul 4, 06:50 UTCJul 5, 05:05 UTC22h 15m
2026-07-04 BTK6008 - Jul 4, 06:20 UTCJul 5, 04:45 UTC22h 25m
2026-07-04 BTK6007 - Jul 4, 04:35 UTCJul 4, 05:10 UTC35m
2026-07-03 BTK6007 - Jul 3, 06:50 UTCJul 4, 05:10 UTC22h 20m
2026-07-03 BTK6008 - Jul 3, 06:20 UTCJul 4, 04:45 UTC22h 25m
2026-07-03 BTK6007 - Jul 3, 04:30 UTCJul 3, 05:15 UTC45m
2026-07-02 BTK6007 - Jul 2, 06:51 UTCJul 3, 05:15 UTC22h 24m
2026-07-02 BTK6008 - Jul 2, 06:15 UTCJul 3, 04:45 UTC22h 30m
2026-07-02 BTK6007 - Jul 2, 04:20 UTCJul 2, 05:00 UTC40m
2026-07-01 BTK6007 - Jul 1, 06:50 UTCJul 2, 05:00 UTC22h 10m
2026-07-01 BTK6008 - Jul 1, 06:35 UTCJul 2, 04:45 UTC22h 10m
2026-07-01 BTK6007 - Jul 1, 04:25 UTCJul 1, 05:20 UTC55m
2026-06-30 BTK6007 - Jun 30, 06:50 UTCJul 1, 05:20 UTC22h 30m
2026-06-30 BTK6008 - Jun 30, 06:40 UTCJul 1, 04:45 UTC22h 5m
2026-06-30 BTK6007 - Jun 30, 04:25 UTCJun 30, 05:05 UTC40m
2026-06-29 BTK6007 - Jun 29, 06:50 UTCJun 30, 05:05 UTC22h 16m
2026-06-29 BTK6008 - Jun 29, 06:24 UTCJun 30, 04:45 UTC22h 21m

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

Mode-S 8A09A3 frequently asked

What is Mode-S code 8A09A3?
8A09A3 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-BKT.
Where is Mode-S 8A09A3 registered?
Mode-S code 8A09A3 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A09A3 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A09A3, octal 42404643, decimal 9,046,435.
What flights does 8A09A3 operate?
Mode-S 8A09A3 has broadcast 20 distinct callsigns, including BTK6007, BTK6008, BTK6080, BTK7631, BTK7630.