Apparatus

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sensors Mode-S transponder

8A0604

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-LUJ · AIRBUS A-320

Hex
8A0604
Octal
42403004
Decimal
9,045,508
Country
ID
Tail
PK-LUJ
Type
A320
No current signal · last broadcast 12h ago
Flights observed
125
Distinct callsigns
20
Country
ID
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 8A0604.

Country allocation

The ICAO 24-bit address 8A0604 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
BTK6899 Batik Air 6 2026-05-27
BTK6509 Batik Air 6 2026-05-18
BTK6508 Batik Air 5 2026-05-18
BTK7154 Batik Air 4 2026-04-22
BTK6825 Batik Air 4 2026-05-05
BTK7368 Batik Air 3 2026-05-04
BTK6824 Batik Air 3 2026-05-05
BTK6819 Batik Air 3 2026-05-16
BTK6818 Batik Air 3 2026-05-16
BTK6656 Batik Air 3 2026-05-24
BTK6584 Batik Air 3 2026-05-29
BTK6362 Batik Air 3 2026-05-29
BTK7579 Batik Air 2 2026-05-15
BTK7517 Batik Air 2 2026-04-16
BTK7501 Batik Air 2 2026-04-14
BTK7369 Batik Air 2 2026-05-02
BTK7155 Batik Air 2 2026-04-19
BTK7153 Batik Air 2 2026-04-22
BTK7055 Batik Air 2 2026-04-14
BTK6898 Batik Air 2 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BTK6362 CGK → SRG May 29, 12:40 UTCMay 29, 13:10 UTC30m
2026-05-29 BTK6815 BKS → CGK May 29, 09:30 UTCMay 29, 09:45 UTC15m
2026-05-29 BTK6814 CGK → BKS May 29, 07:05 UTCMay 29, 07:15 UTC10m
2026-05-29 BTK6584 CGK → SUB May 29, 01:15 UTCMay 29, 04:35 UTC3h 20m
2026-05-28 BTK6807 DJB → CGK May 28, 23:15 UTCMay 29, 00:10 UTC55m
2026-05-28 BTK6806 CGK → DJB May 28, 10:25 UTCMay 28, 11:10 UTC45m
2026-05-28 BTK6253 BPN → CGK May 28, 08:25 UTCMay 28, 08:40 UTC15m
2026-05-27 BTK6899 BTJ → CGK May 27, 08:25 UTCMay 28, 02:25 UTC18h 0m
2026-05-27 BTK6659 LOP → CGK May 27, 06:55 UTCMay 27, 07:05 UTC10m
2026-05-27 BTK6658 CGK → LOP May 27, 02:54 UTCMay 27, 03:34 UTC40m
2026-05-26 BTK6170 CGK → AMQ May 26, 17:39 UTCMay 26, 17:50 UTC10m
2026-05-26 BTK6805 DJB → CGK May 26, 05:15 UTCMay 26, 06:04 UTC50m
2026-05-26 BTK6804 CGK → DJB May 26, 03:05 UTCMay 26, 03:55 UTC50m
2026-05-24 BTK6296 CGK → UPG May 24, 10:05 UTCMay 24, 10:30 UTC25m
2026-05-24 BTK6656 CGK → LOP May 24, 04:15 UTCMay 24, 05:00 UTC45m
2026-05-23 BTK6202 CGK → PKN May 23, 23:10 UTCMay 23, 23:25 UTC15m
2026-05-23 BTK6887 KNO → CGK May 23, 11:25 UTCMay 23, 13:15 UTC1h 50m
2026-05-23 BTK7146 SIN → KNO May 23, 06:30 UTCMay 23, 07:10 UTC40m
2026-05-22 BTK6884 CGK → KNO May 22, 12:20 UTCMay 23, 04:45 UTC16h 24m
2026-05-22 BTK6658 CGK → LOP May 22, 03:10 UTCMay 22, 03:55 UTC45m
2026-05-21 BTK6540 CGK → KOE May 21, 19:05 UTCMay 21, 19:45 UTC40m
2026-05-21 BTK6656 CGK → LOP May 21, 04:25 UTCMay 21, 09:30 UTC5h 5m
2026-05-20 BTK6899 BTJ → CGK May 20, 08:30 UTCMay 21, 02:35 UTC18h 5m
2026-05-18 BTK6508 CGK → DPS May 18, 08:30 UTCMay 18, 09:10 UTC40m
2026-05-18 BTK6509 DPS → CGK May 18, 06:50 UTCMay 18, 07:05 UTC15m
2026-05-17 BTK6508 CGK → DPS May 17, 07:55 UTCMay 17, 08:35 UTC40m
2026-05-17 BTK6566 CGK → MLG May 17, 01:40 UTCMay 17, 02:25 UTC45m
2026-05-16 BTK6819 BKS → CGK May 16, 23:45 UTCMay 17, 00:15 UTC30m
2026-05-16 BTK6818 CGK → BKS May 16, 08:31 UTCMay 16, 08:46 UTC15m
2026-05-15 BTK7797 CGK → SOQ May 15, 17:50 UTCMay 16, 05:35 UTC11h 45m
2026-05-15 BTK7579 SUB → CGK May 15, 08:40 UTCMay 15, 11:55 UTC3h 15m
2026-05-15 BTK6509 DPS → CGK May 15, 06:25 UTCMay 15, 06:50 UTC25m
2026-05-13 BTK6508 CGK → DPS May 13, 07:50 UTCMay 13, 08:30 UTC40m
2026-05-13 BTK6585 SUB → CGK May 13, 04:20 UTCMay 13, 04:35 UTC15m
2026-05-13 BTK6584 CGK → SUB May 13, 01:15 UTCMay 13, 02:00 UTC45m
2026-05-12 BTK6807 DJB → CGK May 12, 23:20 UTCMay 13, 00:10 UTC50m
2026-05-12 BTK6806 CGK → DJB May 12, 10:30 UTCMay 12, 11:25 UTC55m
2026-05-12 BTK6527 LBJ → CGK May 12, 07:40 UTCMay 12, 07:50 UTC10m
2026-05-12 BTK6526 CGK → LBJ May 12, 03:05 UTCMay 12, 03:45 UTC40m
2026-05-11 BTK6884 CGK → KNO May 11, 12:25 UTCMay 11, 13:55 UTC1h 30m
2026-05-11 BTK6205 PKN → CGK May 11, 10:05 UTCMay 11, 10:15 UTC10m
2026-05-11 BTK6585 SUB → CGK May 11, 04:10 UTCMay 11, 04:45 UTC35m
2026-05-11 BTK6584 CGK → SUB May 11, 01:20 UTCMay 11, 02:00 UTC40m
2026-05-10 BTK6819 BKS → CGK May 10, 23:50 UTCMay 11, 00:00 UTC10m
2026-05-10 BTK6818 CGK → BKS May 10, 08:30 UTCMay 10, 08:54 UTC25m
2026-05-10 BTK6379 YIA → CGK May 10, 06:25 UTCMay 10, 06:59 UTC35m
2026-05-10 BTK7539 HLP → YIA May 10, 04:19 UTCMay 10, 04:45 UTC25m
2026-05-09 BTK6899 BTJ → CGK May 9, 08:35 UTCMay 10, 02:39 UTC18h 5m
2026-05-09 BTK6857 PKU → CGK May 9, 05:10 UTCMay 9, 06:30 UTC1h 20m
2026-05-09 BTK6852 CGK → PKU May 9, 02:45 UTCMay 9, 03:55 UTC1h 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-LUJ page for operator, model, and routing details .

Mode-S 8A0604 frequently asked

What is Mode-S code 8A0604?
8A0604 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-LUJ.
Where is Mode-S 8A0604 registered?
Mode-S code 8A0604 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0604 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 8A0604, octal 42403004, decimal 9,045,508.
What flights does 8A0604 operate?
Mode-S 8A0604 has broadcast 20 distinct callsigns, including BTK6899, BTK6509, BTK6508, BTK7154, BTK6825.