Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

8A0637

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-LUS · AIRBUS A-320

Hex
8A0637
Octal
42403067
Decimal
9,045,559
Country
ID
Tail
PK-LUS
Type
A320
No current signal · last broadcast 5d ago
Flights observed
129
Distinct callsigns
20
Country
ID
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 8A0637.

Country allocation

The ICAO 24-bit address 8A0637 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 Batik Air 5 2026-05-16
BTK7579 Batik Air 4 2026-05-12
BTK7147 Batik Air 4 2026-04-25
BTK6807 Batik Air 4 2026-05-15
BTK7540 Batik Air 3 2026-05-16
BTK7109 Batik Air 3 2026-05-08
BTK6806 Batik Air 3 2026-05-15
BTK6526 Batik Air 3 2026-05-13
BTK6242 Batik Air 3 2026-05-16
BTK7581 - 2 2026-04-13
BTK7531 Batik Air 2 2026-05-14
BTK7283 Batik Air 2 2026-05-07
BTK7156 Batik Air 2 2026-04-20
BTK7154 Batik Air 2 2026-04-18
BTK7150 Batik Air 2 2026-04-17
BTK7146 Batik Air 2 2026-04-25
BTK6899 Batik Air 2 2026-05-02
BTK6887 Batik Air 2 2026-04-25
BTK6825 Batik Air 2 2026-04-26
BTK6824 Batik Air 2 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-25 BTK6818 CGK → BKS May 25, 08:30 UTCMay 25, 08:55 UTC25m
2026-05-25 BTK6229 PNK → CGK May 25, 03:50 UTCMay 25, 04:00 UTC10m
2026-05-24 BTK6588 CGK → SUB May 24, 13:15 UTCMay 24, 13:40 UTC25m
2026-05-23 BTK6288 CGK → UPG May 23, 17:15 UTCMay 24, 11:10 UTC17h 55m
2026-05-23 BTK7058 PLM → HLP May 23, 12:20 UTCMay 23, 12:35 UTC15m
2026-05-23 BTK7059 HLP → PLM May 23, 10:10 UTCMay 23, 10:20 UTC10m
2026-05-23 BTK6675 TRK → CGK May 23, 08:35 UTCMay 23, 08:55 UTC20m
2026-05-22 BTK6540 CGK → KOE May 22, 19:15 UTCMay 22, 20:00 UTC45m
2026-05-22 BTK6293 UPG → CGK May 22, 11:35 UTCMay 22, 11:55 UTC20m
2026-05-18 BTK6264 CGK → UPG May 18, 19:15 UTCMay 18, 19:35 UTC20m
2026-05-18 BTK6345 YIA → CGK May 18, 06:20 UTCMay 18, 08:55 UTC2h 35m
2026-05-18 BTK6566 CGK → MLG May 18, 01:40 UTCMay 18, 05:00 UTC3h 20m
2026-05-17 BTK6819 BKS → CGK May 17, 23:45 UTCMay 18, 00:10 UTC25m
2026-05-17 BTK6818 CGK → BKS May 17, 09:05 UTCMay 17, 09:30 UTC25m
2026-05-17 BTK7538 YIA → CGK May 17, 06:10 UTCMay 17, 06:50 UTC40m
2026-05-17 BTK7539 HLP → YIA May 17, 04:30 UTCMay 17, 04:55 UTC25m
2026-05-16 BTK6242 CGK → GTO May 16, 21:10 UTCMay 16, 21:20 UTC10m
2026-05-16 BTK6576 CGK → SUB May 16, 10:20 UTCMay 16, 13:41 UTC3h 20m
2026-05-16 BTK7108 PDG → CGK May 16, 09:01 UTCMay 16, 09:10 UTC10m
2026-05-16 BTK7108 PDG → CGK May 16, 06:01 UTCMay 16, 08:31 UTC2h 30m
2026-05-16 BTK7540 YIA → CGK May 16, 03:20 UTCMay 16, 03:40 UTC20m
2026-05-16 BTK7533 CGK → YIA May 16, 01:45 UTCMay 16, 01:55 UTC10m
2026-05-15 BTK6807 DJB → CGK May 15, 23:15 UTCMay 15, 23:30 UTC15m
2026-05-15 BTK6806 CGK → DJB May 15, 10:20 UTCMay 15, 10:30 UTC10m
2026-05-15 BTK6344 CGK → YIA May 15, 06:20 UTCMay 15, 08:50 UTC2h 30m
2026-05-15 BTK6805 DJB → CGK May 15, 04:10 UTCMay 15, 04:20 UTC10m
2026-05-15 BTK6804 CGK → DJB May 15, 02:05 UTCMay 15, 02:55 UTC50m
2026-05-14 BTK6362 CGK → SRG May 14, 13:01 UTCMay 14, 13:25 UTC25m
2026-05-14 BTK7531 HLP → SOC May 14, 05:15 UTCMay 14, 06:10 UTC55m
2026-05-14 BTK6343 SRG → CGK May 14, 03:45 UTCMay 14, 04:15 UTC30m
2026-05-14 BTK6342 CGK → SRG May 14, 01:50 UTCMay 14, 02:25 UTC35m
2026-05-13 BTK6353 SRG → CGK May 13, 09:35 UTCMay 13, 12:20 UTC2h 45m
2026-05-13 BTK6527 LBJ → CGK May 13, 07:50 UTCMay 13, 08:05 UTC15m
2026-05-13 BTK6526 CGK → LBJ May 13, 03:05 UTCMay 13, 03:40 UTC35m
2026-05-12 BTK6540 CGK → KOE May 12, 19:15 UTCMay 13, 01:30 UTC6h 15m
2026-05-12 BTK7579 SUB → CGK May 12, 11:25 UTCMay 12, 12:00 UTC35m
2026-05-11 BTK7513 HLP → SUB May 11, 02:10 UTCMay 11, 05:05 UTC2h 55m
2026-05-10 BTK7055 HLP → PLM May 10, 12:15 UTCMay 10, 12:30 UTC15m
2026-05-10 BTK7501 HLP → SUB May 10, 07:19 UTCMay 10, 10:19 UTC3h 0m
2026-05-10 BTK7517 HLP → SUB May 10, 02:39 UTCMay 10, 05:40 UTC3h 0m
2026-05-09 BTK6588 CGK → SUB May 9, 13:05 UTCMay 10, 01:30 UTC12h 25m
2026-05-09 BTK6871 PLM → CGK May 9, 07:10 UTCMay 9, 07:25 UTC15m
2026-05-09 BTK6870 CGK → PLM May 9, 05:00 UTCMay 9, 05:20 UTC20m
2026-05-08 BTK7066 PKU → HLP May 8, 23:40 UTCMay 9, 00:20 UTC40m
2026-05-08 BTK7065 CGK → PKU May 8, 11:09 UTCMay 8, 12:10 UTC1h 0m
2026-05-08 BTK7108 PDG → CGK May 8, 08:59 UTCMay 8, 09:14 UTC15m
2026-05-08 BTK7109 CGK → PDG May 8, 05:20 UTCMay 8, 08:24 UTC3h 5m
2026-05-08 BTK6229 PNK → CGK May 8, 04:00 UTCMay 8, 04:14 UTC15m
2026-05-08 BTK6228 CGK → PNK May 8, 01:00 UTCMay 8, 01:14 UTC15m
2026-05-07 BTK7283 KUL → CGK May 7, 08:00 UTCMay 7, 08:20 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-LUS page for operator, model, and routing details .

Mode-S 8A0637 frequently asked

What is Mode-S code 8A0637?
8A0637 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-LUS.
Where is Mode-S 8A0637 registered?
Mode-S code 8A0637 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0637 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0637, octal 42403067, decimal 9,045,559.
What flights does 8A0637 operate?
Mode-S 8A0637 has broadcast 20 distinct callsigns, including BTK7108, BTK7579, BTK7147, BTK6807, BTK7540.