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 Jul 26, 22:45 UTC
Flights observed
300
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 22:45 UTC

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 Batik Air 75 2026-07-26
BTK6008 Batik Air 44 2026-07-26
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
2026-07-26 BTK6008 PER → DPS Jul 26, 06:30 UTCJul 26, 22:45 UTC16h 16m
2026-07-26 BTK6007 DPS → PER Jul 26, 04:40 UTCJul 26, 05:15 UTC35m
2026-07-25 BTK6007 DPS → PER Jul 25, 06:50 UTCJul 26, 05:15 UTC22h 25m
2026-07-25 BTK6008 PER → DPS Jul 25, 06:25 UTCJul 26, 04:45 UTC22h 20m
2026-07-25 BTK6007 DPS → PER Jul 25, 04:35 UTCJul 25, 05:15 UTC40m
2026-07-24 BTK6007 DPS → PER Jul 24, 06:50 UTCJul 25, 05:15 UTC22h 25m
2026-07-24 BTK6008 PER → DPS Jul 24, 06:30 UTCJul 25, 04:45 UTC22h 15m
2026-07-24 BTK6007 DPS → PER Jul 24, 04:30 UTCJul 24, 05:15 UTC45m
2026-07-23 BTK6007 DPS → PER Jul 23, 06:50 UTCJul 24, 05:15 UTC22h 25m
2026-07-23 BTK6008 PER → DPS Jul 23, 06:35 UTCJul 24, 04:45 UTC22h 10m
2026-07-23 BTK6007 DPS → PER Jul 23, 04:20 UTCJul 23, 05:10 UTC50m
2026-07-22 BTK6007 DPS → PER Jul 22, 04:20 UTCJul 22, 05:05 UTC45m
2026-07-21 BTK6007 DPS → PER Jul 21, 06:50 UTCJul 22, 05:05 UTC22h 15m
2026-07-21 BTK6008 PER → DPS Jul 21, 06:40 UTCJul 22, 04:45 UTC22h 5m
2026-07-21 BTK6007 DPS → PER Jul 21, 04:45 UTCJul 21, 05:30 UTC45m
2026-07-20 BTK6007 DPS → PER Jul 20, 06:50 UTCJul 21, 05:30 UTC22h 39m
2026-07-20 BTK6008 - Jul 20, 06:30 UTCJul 21, 04:45 UTC22h 14m
2026-07-20 BTK6007 DPS → PER Jul 20, 04:30 UTCJul 20, 05:15 UTC45m
2026-07-19 BTK6007 DPS → PER Jul 19, 06:50 UTCJul 20, 05:15 UTC22h 25m
2026-07-19 BTK6008 - Jul 19, 06:20 UTCJul 20, 04:45 UTC22h 25m
2026-07-19 BTK6008 - Jul 19, 04:35 UTCJul 19, 05:10 UTC35m
2026-07-18 BTK6008 - Jul 18, 06:50 UTCJul 19, 05:10 UTC22h 20m
2026-07-18 BTK6008 - Jul 18, 06:20 UTCJul 19, 04:45 UTC22h 25m
2026-07-18 BTK6007 DPS → PER Jul 18, 04:10 UTCJul 18, 05:00 UTC50m
2026-07-17 BTK6007 DPS → PER Jul 17, 07:00 UTCJul 18, 05:00 UTC22h 1m
2026-07-17 BTK6007 DPS → PER Jul 17, 05:25 UTCJul 17, 06:00 UTC35m
2026-07-16 BTK6007 DPS → PER Jul 16, 06:50 UTCJul 17, 06:00 UTC23h 10m
2026-07-16 BTK6007 - Jul 16, 04:45 UTCJul 16, 05:30 UTC45m
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

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 Jul 26, 22:45 UTC.
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.