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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 Jul 26, 19:50 UTC
Flights observed
319
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 19:50 UTC

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
BTK6825 - 9 2026-06-16
BTK6899 - 7 2026-06-30
BTK6857 Batik Air 7 2026-07-25
BTK6819 Batik Air 7 2026-07-18
BTK6509 - 7 2026-06-23
BTK6508 - 7 2026-06-23
BTK7797 - 6 2026-07-09
BTK6824 - 6 2026-06-16
BTK6818 Batik Air 6 2026-07-24
BTK6806 Batik Air 6 2026-07-19
BTK7780 - 5 2026-07-10
BTK7368 - 5 2026-07-08
BTK7055 - 5 2026-07-11
BTK6852 Batik Air 5 2026-07-25
BTK6807 Batik Air 5 2026-07-19
BTK7309 - 4 2026-07-12
BTK7154 Batik Air 4 2026-04-22
BTK6656 - 4 2026-07-04
BTK6584 - 4 2026-06-20
BTK6375 - 4 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BTK6140 CGK → TTE Jul 26, 19:40 UTCJul 26, 19:50 UTC10m
2026-07-26 BTK6887 KNO → CGK Jul 26, 08:30 UTCJul 26, 13:35 UTC5h 5m
2026-07-26 BTK6141 TTE → CGK Jul 26, 05:10 UTCJul 26, 05:25 UTC15m
2026-07-25 BTK6343 SRG → CGK Jul 25, 08:50 UTCJul 25, 09:10 UTC20m
2026-07-25 BTK6342 CGK → SRG Jul 25, 06:30 UTCJul 25, 06:55 UTC25m
2026-07-25 BTK6857 PKU → CGK Jul 25, 05:15 UTCJul 25, 05:25 UTC10m
2026-07-25 BTK6857 PKU → CGK Jul 25, 04:10 UTCJul 25, 04:45 UTC35m
2026-07-25 BTK6852 CGK → PKU Jul 25, 01:25 UTCJul 25, 02:35 UTC1h 10m
2026-07-24 BTK6818 CGK → BKS Jul 24, 09:10 UTCJul 25, 00:25 UTC15h 15m
2026-07-24 BTK6711 TKG → CGK Jul 24, 06:05 UTCJul 24, 06:45 UTC40m
2026-07-24 BTK6710 CGK → TKG Jul 24, 04:45 UTCJul 24, 05:00 UTC15m
2026-07-24 BTK6141 TTE → CGK Jul 24, 03:10 UTCJul 24, 03:30 UTC20m
2026-07-23 BTK6140 CGK → TTE Jul 23, 19:45 UTCJul 23, 20:05 UTC20m
2026-07-23 BTK7532 SOC → HLP Jul 23, 06:40 UTCJul 23, 07:25 UTC45m
2026-07-23 BTK7531 HLP → SOC Jul 23, 04:40 UTCJul 23, 05:30 UTC50m
2026-07-23 BTK6141 TTE → CGK Jul 23, 03:05 UTCJul 23, 03:15 UTC10m
2026-07-22 BTK6140 CGK → TTE Jul 22, 19:45 UTCJul 22, 19:55 UTC10m
2026-07-22 BTK7579 SUB → CGK Jul 22, 11:25 UTCJul 22, 11:45 UTC20m
2026-07-21 BTK7521 HLP → SUB Jul 21, 13:25 UTCJul 22, 11:45 UTC22h 20m
2026-07-21 BTK7514 SUB → HLP Jul 21, 11:45 UTCJul 21, 12:15 UTC30m
2026-07-21 BTK6578 - Jul 21, 08:35 UTCJul 21, 09:15 UTC40m
2026-07-21 BTK6171 AMQ → CGK Jul 21, 06:20 UTCJul 21, 06:40 UTC20m
2026-07-20 BTK6170 CGK → AMQ Jul 20, 17:40 UTCJul 20, 18:05 UTC25m
2026-07-20 BTK7363 - Jul 20, 11:15 UTCJul 20, 12:05 UTC50m
2026-07-20 BTK7362 - Jul 20, 09:30 UTCJul 20, 10:25 UTC55m
2026-07-20 BTK6801 - Jul 20, 08:10 UTCJul 20, 08:30 UTC20m
2026-07-20 BTK6800 - Jul 20, 05:10 UTCJul 20, 05:30 UTC20m
2026-07-20 BTK7540 YIA → CGK Jul 20, 03:15 UTCJul 20, 03:50 UTC35m
2026-07-20 BTK7533 CGK → YIA Jul 20, 01:10 UTCJul 20, 01:35 UTC25m
2026-07-19 BTK6807 DJB → CGK Jul 19, 23:15 UTCJul 20, 00:15 UTC1h 0m
2026-07-19 BTK6806 CGK → DJB Jul 19, 10:30 UTCJul 19, 11:20 UTC50m
2026-07-19 BTK6343 - Jul 19, 08:35 UTCJul 19, 09:05 UTC30m
2026-07-19 BTK6342 - Jul 19, 06:40 UTCJul 19, 07:05 UTC25m
2026-07-19 BTK6566 CGK → MLG Jul 19, 01:45 UTCJul 19, 05:00 UTC3h 15m
2026-07-18 BTK6819 BKS → CGK Jul 18, 08:35 UTCJul 19, 00:10 UTC15h 35m
2026-07-17 BTK6171 - Jul 17, 17:40 UTCJul 18, 06:30 UTC12h 51m
2026-07-17 BTK7363 - Jul 17, 11:35 UTCJul 17, 12:30 UTC55m
2026-07-17 BTK7362 - Jul 17, 09:50 UTCJul 17, 10:35 UTC45m
2026-07-17 BTK6801 - Jul 17, 07:25 UTCJul 17, 08:45 UTC1h 20m
2026-07-17 BTK6800 - Jul 17, 05:30 UTCJul 17, 06:35 UTC1h 5m
2026-07-17 BTK6267 - Jul 17, 04:04 UTCJul 17, 04:14 UTC10m
2026-07-16 BTK6236 - Jul 16, 22:40 UTCJul 16, 23:05 UTC25m
2026-07-16 BTK6803 - Jul 16, 12:20 UTCJul 16, 13:20 UTC1h 0m
2026-07-16 BTK6802 - Jul 16, 10:29 UTCJul 16, 10:45 UTC15m
2026-07-16 BTK6343 - Jul 16, 08:35 UTCJul 16, 08:50 UTC15m
2026-07-16 BTK6342 - Jul 16, 06:30 UTCJul 16, 06:55 UTC25m
2026-07-16 BTK6857 - Jul 16, 04:00 UTCJul 16, 05:20 UTC1h 20m
2026-07-16 BTK6852 - Jul 16, 01:15 UTCJul 16, 02:20 UTC1h 5m
2026-07-15 BTK6819 - Jul 15, 23:50 UTCJul 16, 00:05 UTC15m
2026-07-15 BTK6818 - Jul 15, 10:10 UTCJul 15, 10:30 UTC20m

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 Jul 26, 19:50 UTC.
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 BTK6825, BTK6899, BTK6857, BTK6819, BTK6509.