Apparatus

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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 28d ago
Flights observed
171
Distinct callsigns
20
Country
ID
Last broadcast
28d 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
BTK6362 Batik Air 4 2026-06-06
BTK6353 Batik Air 4 2026-06-11
BTK6293 Batik Air 4 2026-06-05
BTK7540 Batik Air 3 2026-05-16
BTK7109 Batik Air 3 2026-05-08
BTK6862 Batik Air 3 2026-06-16
BTK6819 Batik Air 3 2026-06-02
BTK6806 Batik Air 3 2026-05-15
BTK6526 Batik Air 3 2026-05-13
BTK6269 Batik Air 3 2026-06-14
BTK6242 Batik Air 3 2026-05-16
BTK7630 - 2 2026-06-16
BTK7581 - 2 2026-04-13
BTK7531 Batik Air 2 2026-05-14
BTK7369 Batik Air 2 2026-06-01
BTK7283 Batik Air 2 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-16 BTK6862 CGK → BTH Jun 16, 12:50 UTCJun 16, 13:50 UTC1h 0m
2026-06-16 BTK7630 - Jun 16, 09:50 UTCJun 16, 10:09 UTC20m
2026-06-16 BTK7630 - Jun 16, 06:54 UTCJun 16, 09:15 UTC2h 20m
2026-06-16 BTK7631 - Jun 16, 02:40 UTCJun 16, 05:50 UTC3h 10m
2026-06-16 BTK6863 - Jun 16, 00:10 UTCJun 16, 01:25 UTC1h 15m
2026-06-15 BTK6862 CGK → BTH Jun 15, 12:55 UTCJun 15, 14:05 UTC1h 10m
2026-06-15 BTK6821 - Jun 15, 09:35 UTCJun 15, 10:24 UTC50m
2026-06-15 BTK6820 - Jun 15, 07:40 UTCJun 15, 08:04 UTC25m
2026-06-14 BTK7797 CGK → SOQ Jun 14, 17:40 UTCJun 15, 06:00 UTC12h 20m
2026-06-14 BTK6269 UPG → CGK Jun 14, 14:00 UTCJun 14, 14:35 UTC35m
2026-06-12 BTK6296 CGK → UPG Jun 12, 10:20 UTCJun 12, 10:45 UTC25m
2026-06-12 BTK6253 BPN → CGK Jun 12, 08:20 UTCJun 12, 08:55 UTC35m
2026-06-12 BTK6141 TTE → CGK Jun 12, 02:55 UTCJun 12, 03:05 UTC10m
2026-06-11 BTK6140 CGK → TTE Jun 11, 19:50 UTCJun 11, 20:00 UTC10m
2026-06-11 BTK6353 SRG → CGK Jun 11, 11:55 UTCJun 11, 12:25 UTC30m
2026-06-11 BTK6352 CGK → SRG Jun 11, 10:05 UTCJun 11, 10:35 UTC30m
2026-06-11 BTK6656 CGK → LOP Jun 11, 04:25 UTCJun 11, 09:00 UTC4h 35m
2026-06-11 BTK6141 TTE → CGK Jun 11, 02:45 UTCJun 11, 03:00 UTC15m
2026-06-10 BTK6140 CGK → TTE Jun 10, 19:40 UTCJun 10, 19:50 UTC10m
2026-06-10 BTK6269 UPG → CGK Jun 10, 14:10 UTCJun 10, 14:25 UTC15m
2026-06-08 BTK6296 CGK → UPG Jun 8, 10:00 UTCJun 8, 10:20 UTC20m
2026-06-08 BTK6171 AMQ → CGK Jun 8, 06:05 UTCJun 8, 06:20 UTC15m
2026-06-07 BTK6170 CGK → AMQ Jun 7, 17:45 UTCJun 7, 18:05 UTC20m
2026-06-07 BTK6269 UPG → CGK Jun 7, 14:35 UTCJun 7, 14:50 UTC15m
2026-06-06 BTK6264 CGK → UPG Jun 6, 19:14 UTCJun 6, 19:24 UTC10m
2026-06-06 BTK6353 SRG → CGK Jun 6, 14:54 UTCJun 6, 15:10 UTC15m
2026-06-06 BTK6362 CGK → SRG Jun 6, 12:45 UTCJun 6, 12:54 UTC10m
2026-06-06 BTK6205 PKN → CGK Jun 6, 10:09 UTCJun 6, 10:25 UTC15m
2026-06-06 BTK6339 SRG → CGK Jun 6, 05:35 UTCJun 6, 06:05 UTC30m
2026-06-05 BTK6338 CGK → SRG Jun 5, 23:45 UTCJun 6, 00:10 UTC25m
2026-06-05 BTK6293 UPG → CGK Jun 5, 11:35 UTCJun 5, 12:05 UTC30m
2026-06-03 BTK6182 CGK → UPG Jun 3, 16:15 UTCJun 3, 16:45 UTC30m
2026-06-03 BTK6293 UPG → CGK Jun 3, 11:55 UTCJun 3, 12:10 UTC15m
2026-06-03 BTK6292 CGK → UPG Jun 3, 02:20 UTCJun 3, 02:35 UTC15m
2026-06-02 BTK6819 BKS → CGK Jun 2, 08:25 UTCJun 3, 00:10 UTC15h 45m
2026-06-02 BTK6711 TKG → CGK Jun 2, 05:50 UTCJun 2, 06:10 UTC20m
2026-06-02 BTK6710 CGK → TKG Jun 2, 04:20 UTCJun 2, 04:35 UTC15m
2026-06-01 BTK6898 CGK → BTJ Jun 1, 08:30 UTCJun 2, 02:30 UTC18h 0m
2026-06-01 BTK6658 CGK → LOP Jun 1, 02:40 UTCJun 1, 07:00 UTC4h 20m
2026-06-01 BTK7369 SRG → CGK Jun 1, 00:20 UTCJun 1, 00:45 UTC25m
2026-05-31 BTK6362 CGK → SRG May 31, 12:45 UTCMay 31, 13:10 UTC25m
2026-05-31 BTK6815 BKS → CGK May 31, 09:30 UTCMay 31, 10:00 UTC30m
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

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 28d 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, BTK6362.