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sensors Mode-S transponder

8A09A2

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-BKY · AIRBUS A-320

Hex
8A09A2
Octal
42404642
Decimal
9,046,434
Country
ID
Tail
PK-BKY
Type
A320
No current signal · last broadcast Jul 26, 20:50 UTC
Flights observed
427
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 20:50 UTC

Last known position

Most recent position reported by Mode-S 8A09A2.

Country allocation

The ICAO 24-bit address 8A09A2 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
BTK6081 Batik Air 42 2026-07-26
BTK6080 Batik Air 40 2026-07-26
BTK6339 - 13 2026-07-14
BTK6338 - 12 2026-07-13
BTK7531 - 8 2026-07-19
BTK6821 - 8 2026-07-01
BTK6205 - 8 2026-07-14
BTK6203 Batik Air 8 2026-07-26
BTK7532 Batik Air 7 2026-07-19
BTK6865 - 6 2026-07-13
BTK6864 - 6 2026-07-13
BTK6814 - 6 2026-06-14
BTK6805 Batik Air 6 2026-06-09
BTK6343 - 6 2026-06-29
BTK7630 Batik Air 5 2026-04-28
BTK7369 Batik Air 5 2026-06-09
BTK7041 - 5 2026-06-17
BTK7040 Batik Air 5 2026-06-17
BTK6820 - 5 2026-07-01
BTK6815 - 5 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BTK6081 PER → CGK Jul 26, 16:35 UTCJul 26, 20:50 UTC4h 15m
2026-07-26 BTK6080 CGK → PER Jul 26, 11:10 UTCJul 26, 15:15 UTC4h 5m
2026-07-26 BTK6675 TRK → CGK Jul 26, 08:55 UTCJul 26, 09:10 UTC15m
2026-07-26 BTK6674 CGK → TRK Jul 26, 03:45 UTCJul 26, 03:55 UTC10m
2026-07-26 BTK6203 PKN → CGK Jul 26, 02:00 UTCJul 26, 02:25 UTC25m
2026-07-25 BTK6081 PER → CGK Jul 25, 16:35 UTCJul 25, 20:55 UTC4h 20m
2026-07-25 BTK6080 CGK → PER Jul 25, 11:15 UTCJul 25, 15:30 UTC4h 15m
2026-07-25 BTK6656 CGK → LOP Jul 25, 04:10 UTCJul 25, 08:35 UTC4h 25m
2026-07-25 BTK6203 PKN → CGK Jul 25, 02:05 UTCJul 25, 02:15 UTC10m
2026-07-24 BTK6202 CGK → PKN Jul 24, 23:15 UTCJul 24, 23:25 UTC10m
2026-07-24 BTK6081 PER → CGK Jul 24, 16:30 UTCJul 24, 20:35 UTC4h 5m
2026-07-24 BTK6080 CGK → PER Jul 24, 11:10 UTCJul 24, 15:20 UTC4h 10m
2026-07-23 BTK7797 CGK → SOQ Jul 23, 17:40 UTCJul 24, 06:10 UTC12h 30m
2026-07-23 BTK6293 - Jul 23, 11:50 UTCJul 23, 12:25 UTC35m
2026-07-21 BTK6050 CGK → DPS Jul 21, 03:45 UTCJul 21, 04:25 UTC40m
2026-07-21 BTK6201 PKY → CGK Jul 21, 01:10 UTCJul 21, 01:30 UTC20m
2026-07-20 BTK6200 - Jul 20, 08:35 UTCJul 20, 08:45 UTC10m
2026-07-20 BTK6825 TNJ → CGK Jul 20, 05:50 UTCJul 20, 06:10 UTC20m
2026-07-20 BTK6824 CGK → TNJ Jul 20, 02:35 UTCJul 20, 03:30 UTC55m
2026-07-20 BTK6201 PKY → CGK Jul 20, 01:05 UTCJul 20, 01:20 UTC15m
2026-07-19 BTK7532 SOC → HLP Jul 19, 06:35 UTCJul 19, 07:25 UTC50m
2026-07-19 BTK7531 - Jul 19, 04:40 UTCJul 19, 05:25 UTC45m
2026-07-19 BTK6431 BEJ → CGK Jul 19, 02:40 UTCJul 19, 02:55 UTC15m
2026-07-18 BTK6430 CGK → BEJ Jul 18, 21:55 UTCJul 18, 22:05 UTC10m
2026-07-18 BTK6143 UPG → CGK Jul 18, 10:30 UTCJul 18, 11:05 UTC35m
2026-07-17 BTK6292 - Jul 17, 02:25 UTCJul 17, 02:50 UTC25m
2026-07-17 BTK6375 SOC → CGK Jul 17, 00:20 UTCJul 17, 01:09 UTC50m
2026-07-16 BTK7368 - Jul 16, 10:45 UTCJul 16, 11:30 UTC45m
2026-07-16 BTK6675 - Jul 16, 08:35 UTCJul 16, 08:50 UTC15m
2026-07-16 BTK6674 - Jul 16, 03:30 UTCJul 16, 03:40 UTC10m
2026-07-16 BTK6723 - Jul 16, 02:05 UTCJul 16, 02:20 UTC15m
2026-07-15 BTK6724 - Jul 15, 20:35 UTCJul 15, 20:55 UTC20m
2026-07-15 BTK6235 - Jul 15, 12:55 UTCJul 15, 13:10 UTC15m
2026-07-15 BTK6266 - Jul 15, 08:20 UTCJul 15, 08:45 UTC25m
2026-07-15 BTK7158 - Jul 15, 06:30 UTCJul 15, 06:40 UTC10m
2026-07-15 BTK7157 - Jul 15, 03:10 UTCJul 15, 03:30 UTC20m
2026-07-15 BTK7157 - Jul 15, 02:10 UTCJul 15, 02:25 UTC15m
2026-07-14 BTK6371 - Jul 14, 14:00 UTCJul 14, 14:35 UTC35m
2026-07-14 BTK6374 - Jul 14, 11:45 UTCJul 14, 12:15 UTC30m
2026-07-14 BTK6205 - Jul 14, 10:15 UTCJul 14, 10:30 UTC15m
2026-07-14 BTK6204 - Jul 14, 07:25 UTCJul 14, 07:35 UTC10m
2026-07-14 BTK6339 - Jul 14, 05:40 UTCJul 14, 06:15 UTC35m
2026-07-13 BTK6338 - Jul 13, 23:45 UTCJul 14, 00:05 UTC20m
2026-07-13 BTK6081 - Jul 13, 16:30 UTCJul 13, 20:45 UTC4h 15m
2026-07-13 BTK6080 - Jul 13, 11:15 UTCJul 13, 15:25 UTC4h 10m
2026-07-13 BTK6865 - Jul 13, 05:45 UTCJul 13, 07:05 UTC1h 20m
2026-07-13 BTK6864 - Jul 13, 03:20 UTCJul 13, 04:20 UTC1h 0m
2026-07-13 BTK6203 - Jul 13, 02:01 UTCJul 13, 02:15 UTC15m
2026-07-12 BTK6202 - Jul 12, 23:25 UTCJul 12, 23:35 UTC10m
2026-07-12 BTK6081 - Jul 12, 16:40 UTCJul 12, 20:50 UTC4h 10m

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

Mode-S 8A09A2 frequently asked

What is Mode-S code 8A09A2?
8A09A2 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-BKY.
Where is Mode-S 8A09A2 registered?
Mode-S code 8A09A2 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A09A2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A09A2, octal 42404642, decimal 9,046,434.
What flights does 8A09A2 operate?
Mode-S 8A09A2 has broadcast 20 distinct callsigns, including BTK6081, BTK6080, BTK6339, BTK6338, BTK7531.