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sensors Mode-S transponder

8A091F

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-BKJ · AIRBUS A-320

Hex
8A091F
Octal
42404437
Decimal
9,046,303
Country
ID
Tail
PK-BKJ
Type
A320
No current signal · last broadcast Jul 26, 10:40 UTC
Flights observed
250
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 10:40 UTC

Last known position

Most recent position reported by Mode-S 8A091F.

Country allocation

The ICAO 24-bit address 8A091F 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
BTK7108 - 8 2026-07-19
BTK6572 Batik Air 7 2026-07-22
BTK7109 Batik Air 6 2026-07-19
BTK6296 - 6 2026-07-06
BTK6253 Batik Air 6 2026-07-23
BTK6050 - 6 2026-07-17
BTK7010 Batik Air 5 2026-07-26
BTK6887 Batik Air 5 2026-07-21
BTK7368 Batik Air 4 2026-05-25
BTK7011 Batik Air 4 2026-07-26
BTK6573 Batik Air 4 2026-07-23
BTK6375 Batik Air 4 2026-05-26
BTK6269 Batik Air 4 2026-07-07
BTK6236 Batik Air 4 2026-07-21
BTK6213 - 4 2026-07-17
BTK6143 Batik Air 4 2026-07-25
BTK7532 - 3 2026-06-23
BTK7531 - 3 2026-06-23
BTK7041 - 3 2026-06-23
BTK7040 - 3 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BTK6401 SUB → CGK Jul 26, 10:10 UTCJul 26, 10:40 UTC30m
2026-07-26 BTK6406 CGK → SUB Jul 26, 06:50 UTCJul 26, 07:35 UTC45m
2026-07-26 BTK7010 KNO → HLP Jul 26, 03:30 UTCJul 26, 05:15 UTC1h 45m
2026-07-26 BTK7011 HLP → KNO Jul 26, 00:15 UTCJul 26, 01:45 UTC1h 30m
2026-07-25 BTK6143 UPG → CGK Jul 25, 00:00 UTCJul 25, 10:50 UTC10h 50m
2026-07-23 BTK6253 BPN → CGK Jul 23, 08:35 UTCJul 23, 08:50 UTC15m
2026-07-23 BTK6250 CGK → BPN Jul 23, 04:15 UTCJul 23, 04:30 UTC15m
2026-07-23 BTK6573 SUB → CGK Jul 23, 02:30 UTCJul 23, 02:45 UTC15m
2026-07-22 BTK6572 CGK → SUB Jul 22, 23:15 UTCJul 23, 00:00 UTC45m
2026-07-22 BTK7058 PLM → HLP Jul 22, 13:05 UTCJul 22, 13:25 UTC20m
2026-07-21 BTK6236 CGK → UPG Jul 21, 22:50 UTCJul 21, 23:20 UTC30m
2026-07-21 BTK6887 KNO → CGK Jul 21, 11:30 UTCJul 21, 13:20 UTC1h 50m
2026-07-21 BTK6886 CGK → KNO Jul 21, 08:20 UTCJul 21, 09:55 UTC1h 35m
2026-07-21 BTK7010 KNO → HLP Jul 21, 03:30 UTCJul 21, 05:15 UTC1h 45m
2026-07-21 BTK7011 HLP → KNO Jul 21, 00:10 UTCJul 21, 01:45 UTC1h 35m
2026-07-20 BTK7150 SIN → CGK Jul 20, 11:05 UTCJul 20, 11:25 UTC20m
2026-07-20 BTK7150 SIN → CGK Jul 20, 10:05 UTCJul 20, 10:35 UTC30m
2026-07-20 BTK7151 CGK → SIN Jul 20, 07:05 UTCJul 20, 07:40 UTC35m
2026-07-20 BTK7151 CGK → SIN Jul 20, 06:05 UTCJul 20, 06:20 UTC15m
2026-07-20 BTK6585 SUB → CGK Jul 20, 04:30 UTCJul 20, 04:45 UTC15m
2026-07-20 BTK6584 CGK → SUB Jul 20, 01:20 UTCJul 20, 02:00 UTC40m
2026-07-19 BTK6374 - Jul 19, 11:30 UTCJul 19, 14:05 UTC2h 35m
2026-07-19 BTK7108 - Jul 19, 09:00 UTCJul 19, 09:20 UTC20m
2026-07-19 BTK7108 - Jul 19, 07:55 UTCJul 19, 08:30 UTC35m
2026-07-19 BTK7109 CGK → PDG Jul 19, 05:25 UTCJul 19, 06:30 UTC1h 5m
2026-07-18 BTK6236 CGK → UPG Jul 18, 22:55 UTCJul 19, 04:10 UTC5h 15m
2026-07-18 BTK6656 CGK → CGK Jul 18, 04:00 UTCJul 18, 08:50 UTC4h 50m
2026-07-17 BTK6572 - Jul 17, 23:05 UTCJul 18, 02:50 UTC3h 46m
2026-07-17 BTK6213 - Jul 17, 14:04 UTCJul 17, 14:20 UTC15m
2026-07-17 BTK6517 - Jul 17, 08:20 UTCJul 17, 08:35 UTC15m
2026-07-17 BTK6050 - Jul 17, 03:59 UTCJul 17, 04:44 UTC45m
2026-07-16 BTK6572 - Jul 16, 23:15 UTCJul 17, 02:45 UTC3h 30m
2026-07-16 BTK6213 - Jul 16, 13:40 UTCJul 16, 13:54 UTC15m
2026-07-16 BTK6212 - Jul 16, 10:00 UTCJul 16, 10:10 UTC10m
2026-07-16 BTK7156 - Jul 16, 08:25 UTCJul 16, 08:40 UTC15m
2026-07-16 BTK7156 - Jul 16, 07:20 UTCJul 16, 07:50 UTC30m
2026-07-16 BTK7155 - Jul 16, 04:15 UTCJul 16, 05:45 UTC1h 30m
2026-07-16 BTK6271 - Jul 16, 01:45 UTCJul 16, 02:00 UTC15m
2026-07-15 BTK6213 - Jul 15, 13:25 UTCJul 15, 13:50 UTC25m
2026-07-15 BTK6517 - Jul 15, 08:20 UTCJul 15, 08:35 UTC15m
2026-07-15 BTK6050 - Jul 15, 04:10 UTCJul 15, 04:50 UTC40m
2026-07-15 BTK6573 - Jul 15, 02:35 UTCJul 15, 02:55 UTC20m
2026-07-14 BTK6572 - Jul 14, 23:15 UTCJul 14, 23:55 UTC40m
2026-07-14 BTK6575 - Jul 14, 14:05 UTCJul 14, 14:20 UTC15m
2026-07-14 BTK6576 - Jul 14, 11:10 UTCJul 14, 11:50 UTC40m
2026-07-14 BTK7108 - Jul 14, 08:05 UTCJul 14, 09:30 UTC1h 25m
2026-07-14 BTK7109 - Jul 14, 05:25 UTCJul 14, 06:25 UTC1h 0m
2026-07-14 BTK6267 - Jul 14, 04:00 UTCJul 14, 04:15 UTC15m
2026-07-13 BTK6236 - Jul 13, 23:00 UTCJul 13, 23:25 UTC25m
2026-07-13 BTK7058 - Jul 13, 12:30 UTCJul 13, 12:45 UTC15m

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

Mode-S 8A091F frequently asked

What is Mode-S code 8A091F?
8A091F is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-BKJ.
Where is Mode-S 8A091F registered?
Mode-S code 8A091F is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A091F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 10:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A091F, octal 42404437, decimal 9,046,303.
What flights does 8A091F operate?
Mode-S 8A091F has broadcast 20 distinct callsigns, including BTK7108, BTK6572, BTK7109, BTK6296, BTK6253.