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sensors Mode-S transponder

8A051F

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-LAW · AIRBUS A-320

Hex
8A051F
Octal
42402437
Decimal
9,045,279
Country
ID
Tail
PK-LAW
Type
A320
No current signal · last broadcast Jul 26, 18:25 UTC
Flights observed
328
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 18:25 UTC

Last known position

Most recent position reported by Mode-S 8A051F.

Country allocation

The ICAO 24-bit address 8A051F 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
BTK6080 Batik Air 13 2026-07-23
BTK6081 Batik Air 11 2026-07-23
BTK7309 Batik Air 10 2026-05-22
BTK7055 Batik Air 7 2026-05-21
BTK6857 - 7 2026-07-13
BTK6338 Batik Air 7 2026-07-23
BTK7517 Batik Air 6 2026-05-21
BTK7515 Batik Air 6 2026-05-22
BTK6339 Batik Air 6 2026-07-24
BTK6852 - 5 2026-07-13
BTK6821 Batik Air 5 2026-07-26
BTK6820 Batik Air 5 2026-07-26
BTK6711 - 5 2026-07-06
BTK6710 - 5 2026-07-06
BTK7513 Batik Air 4 2026-05-20
BTK7511 Batik Air 4 2026-05-22
BTK7311 Batik Air 4 2026-05-19
BTK6526 - 4 2026-07-18
BTK6509 - 4 2026-06-30
BTK6229 - 4 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BTK8890 CGK → AMQ Jul 26, 18:00 UTCJul 26, 18:25 UTC25m
2026-07-26 BTK6374 CGK → YIA Jul 26, 11:40 UTCJul 26, 14:20 UTC2h 40m
2026-07-26 BTK6821 LLJ → CGK Jul 26, 09:55 UTCJul 26, 10:20 UTC25m
2026-07-26 BTK6820 CGK → LLJ Jul 26, 07:30 UTCJul 26, 07:45 UTC15m
2026-07-26 BTK6825 TNJ → CGK Jul 26, 05:05 UTCJul 26, 06:10 UTC1h 5m
2026-07-26 BTK6824 CGK → TNJ Jul 26, 02:45 UTCJul 26, 03:40 UTC55m
2026-07-26 BTK6201 PKY → CGK Jul 26, 01:10 UTCJul 26, 01:25 UTC15m
2026-07-25 BTK6200 CGK → PKY Jul 25, 08:40 UTCJul 25, 08:50 UTC10m
2026-07-24 BTK6171 AMQ → CGK Jul 24, 17:35 UTCJul 25, 06:30 UTC12h 55m
2026-07-24 BTK6205 PKN → CGK Jul 24, 10:00 UTCJul 24, 10:20 UTC20m
2026-07-24 BTK6339 SRG → CGK Jul 24, 05:40 UTCJul 24, 06:15 UTC35m
2026-07-23 BTK6338 CGK → SRG Jul 23, 23:45 UTCJul 24, 00:10 UTC25m
2026-07-23 BTK6081 PER → CGK Jul 23, 16:25 UTCJul 23, 20:45 UTC4h 20m
2026-07-23 BTK6080 CGK → PER Jul 23, 11:05 UTCJul 23, 15:05 UTC4h 0m
2026-07-23 BTK6567 MLG → CGK Jul 23, 04:55 UTCJul 23, 05:05 UTC10m
2026-07-23 BTK6566 CGK → MLG Jul 23, 01:50 UTCJul 23, 02:35 UTC45m
2026-07-22 BTK6081 - Jul 22, 16:45 UTCJul 22, 21:05 UTC4h 20m
2026-07-22 BTK6080 CGK → PER Jul 22, 11:45 UTCJul 22, 15:40 UTC3h 55m
2026-07-21 BTK6338 CGK → SRG Jul 21, 23:55 UTCJul 22, 00:20 UTC25m
2026-07-21 BTK6081 PER → CGK Jul 21, 16:40 UTCJul 21, 21:05 UTC4h 25m
2026-07-21 BTK6080 CGK → PER Jul 21, 11:45 UTCJul 21, 15:40 UTC3h 55m
2026-07-21 BTK6821 LLJ → CGK Jul 21, 09:45 UTCJul 21, 10:30 UTC45m
2026-07-21 BTK6820 CGK → LLJ Jul 21, 07:55 UTCJul 21, 08:15 UTC20m
2026-07-21 BTK6339 SRG → CGK Jul 21, 05:50 UTCJul 21, 06:25 UTC35m
2026-07-20 BTK6338 CGK → SRG Jul 20, 23:55 UTCJul 21, 00:20 UTC25m
2026-07-20 BTK6081 - Jul 20, 16:25 UTCJul 20, 20:40 UTC4h 15m
2026-07-20 BTK6080 - Jul 20, 14:35 UTCJul 20, 15:15 UTC40m
2026-07-20 BTK6080 - Jul 20, 11:15 UTCJul 20, 11:35 UTC20m
2026-07-20 BTK6339 SRG → CGK Jul 20, 06:20 UTCJul 20, 06:35 UTC15m
2026-07-19 BTK6338 CGK → SRG Jul 19, 23:55 UTCJul 20, 00:20 UTC25m
2026-07-19 BTK6081 - Jul 19, 16:50 UTCJul 19, 21:10 UTC4h 20m
2026-07-19 BTK6080 - Jul 19, 14:55 UTCJul 19, 15:35 UTC40m
2026-07-19 BTK6080 - Jul 19, 11:35 UTCJul 19, 11:50 UTC15m
2026-07-19 BTK6821 - Jul 19, 09:35 UTCJul 19, 10:10 UTC35m
2026-07-19 BTK6820 - Jul 19, 07:25 UTCJul 19, 07:45 UTC20m
2026-07-19 BTK6339 SRG → CGK Jul 19, 05:40 UTCJul 19, 06:10 UTC30m
2026-07-18 BTK6338 CGK → SRG Jul 18, 23:50 UTCJul 19, 00:15 UTC25m
2026-07-18 BTK6081 - Jul 18, 16:20 UTCJul 18, 20:45 UTC4h 25m
2026-07-18 BTK6081 - Jul 18, 14:25 UTCJul 18, 15:00 UTC35m
2026-07-18 BTK6080 - Jul 18, 11:05 UTCJul 18, 11:25 UTC20m
2026-07-18 BTK6526 - Jul 18, 03:10 UTCJul 18, 08:10 UTC5h 0m
2026-07-17 BTK6081 - Jul 17, 16:55 UTCJul 17, 21:20 UTC4h 25m
2026-07-17 BTK6080 - Jul 17, 11:35 UTCJul 17, 15:40 UTC4h 5m
2026-07-17 BTK6821 - Jul 17, 07:35 UTCJul 17, 10:15 UTC2h 40m
2026-07-17 BTK6339 - Jul 17, 05:30 UTCJul 17, 06:05 UTC35m
2026-07-16 BTK6338 - Jul 16, 23:44 UTCJul 17, 00:10 UTC25m
2026-07-16 BTK6081 - Jul 16, 17:10 UTCJul 16, 21:15 UTC4h 5m
2026-07-16 BTK6080 - Jul 16, 14:50 UTCJul 16, 15:30 UTC40m
2026-07-16 BTK6080 - Jul 16, 11:25 UTCJul 16, 11:45 UTC20m
2026-07-16 BTK6821 - Jul 16, 09:40 UTCJul 16, 10:04 UTC25m

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

Mode-S 8A051F frequently asked

What is Mode-S code 8A051F?
8A051F is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-LAW.
Where is Mode-S 8A051F registered?
Mode-S code 8A051F is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A051F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A051F, octal 42402437, decimal 9,045,279.
What flights does 8A051F operate?
Mode-S 8A051F has broadcast 20 distinct callsigns, including BTK6080, BTK6081, BTK7309, BTK7055, BTK6857.