Apparatus

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sensors Mode-S transponder

8A0840

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to LL-0119 · KOREAN AEROSPACE KT-1

Hex
8A0840
Octal
42404100
Decimal
9,046,080
Country
ID
Tail
LL-0119
Type
KT1
No current signal · last broadcast 40m ago
Flights observed
140
Distinct callsigns
20
Country
ID
Last broadcast
40m ago

Last known position

Most recent position reported by Mode-S 8A0840.

Country allocation

The ICAO 24-bit address 8A0840 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
J009KT - 9 2026-06-24
J050KT - 8 2026-05-19
J985KT - 7 2026-07-13
WGB019 - 6 2026-06-13
J042KT - 6 2026-07-01
J977KT - 5 2026-07-13
J045KT - 5 2026-06-18
J990KT - 4 2026-07-09
J047KT - 4 2026-06-22
J036KT - 4 2026-06-30
J997KT - 3 2026-06-23
J968KT - 3 2026-07-14
J932KT - 3 2026-04-29
J058KT - 3 2026-06-29
J055KT - 3 2026-05-13
J040KT - 3 2026-07-13
J038KT - 3 2026-06-22
J037KT - 3 2026-04-17
XRAYKT - 2 2026-05-18
TANGOKT - 2 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 J968KT - Jul 14, 13:10 UTCJul 14, 13:35 UTC25m
2026-07-14 J049KT - Jul 14, 11:25 UTCJul 14, 12:10 UTC45m
2026-07-14 J910KT - Jul 14, 08:20 UTCJul 14, 09:10 UTC50m
2026-07-13 J985KT - Jul 13, 15:40 UTCJul 13, 16:00 UTC20m
2026-07-13 J977KT - Jul 13, 13:45 UTCJul 13, 14:05 UTC20m
2026-07-13 J977KT - Jul 13, 12:15 UTCJul 13, 12:30 UTC15m
2026-07-13 J040KT - Jul 13, 07:01 UTCJul 13, 07:15 UTC15m
2026-07-10 J028KT - Jul 10, 08:30 UTCJul 10, 09:15 UTC45m
2026-07-10 J028KT - Jul 10, 06:45 UTCJul 10, 07:35 UTC50m
2026-07-10 J977KT - Jul 10, 02:40 UTCJul 10, 03:25 UTC45m
2026-07-10 J911KT - Jul 10, 01:00 UTCJul 10, 01:50 UTC50m
2026-07-09 J010KT - Jul 9, 08:05 UTCJul 9, 09:20 UTC1h 15m
2026-07-09 J010KT - Jul 9, 07:10 UTCJul 9, 07:30 UTC20m
2026-07-09 J990KT - Jul 9, 03:15 UTCJul 9, 04:10 UTC55m
2026-07-08 J952KT - Jul 8, 08:50 UTCJul 8, 10:00 UTC1h 10m
2026-07-08 J014KT - Jul 8, 06:55 UTCJul 8, 08:10 UTC1h 15m
2026-07-08 J985KT - Jul 8, 01:10 UTCJul 8, 02:20 UTC1h 10m
2026-07-01 J042KT - Jul 1, 09:15 UTCJul 1, 09:40 UTC25m
2026-07-01 J042KT - Jul 1, 08:15 UTCJul 1, 08:35 UTC20m
2026-07-01 J985KT - Jul 1, 03:40 UTCJul 1, 04:50 UTC1h 10m
2026-06-30 J036KT - Jun 30, 08:50 UTCJun 30, 09:55 UTC1h 5m
2026-06-30 J042KT - Jun 30, 05:40 UTCJun 30, 06:35 UTC55m
2026-06-30 J042KT - Jun 30, 03:40 UTCJun 30, 04:45 UTC1h 5m
2026-06-29 J049KT - Jun 29, 08:50 UTCJun 29, 09:44 UTC55m
2026-06-29 J040KT - Jun 29, 07:15 UTCJun 29, 08:09 UTC55m
2026-06-29 J058KT - Jun 29, 05:24 UTCJun 29, 06:24 UTC1h 0m
2026-06-29 J036KT - Jun 29, 03:10 UTCJun 29, 04:09 UTC1h 0m
2026-06-29 J036KT - Jun 29, 01:55 UTCJun 29, 02:05 UTC10m
2026-06-29 J036KT - Jun 29, 01:10 UTCJun 29, 01:20 UTC10m
2026-06-26 J042KT - Jun 26, 08:15 UTCJun 26, 09:05 UTC50m
2026-06-26 J042KT - Jun 26, 06:04 UTCJun 26, 07:20 UTC1h 15m
2026-06-25 S0605KT - Jun 25, 09:05 UTCJun 25, 09:25 UTC20m
2026-06-25 J918KT - Jun 25, 07:05 UTCJun 25, 07:49 UTC45m
2026-06-25 S0612KT - Jun 25, 05:29 UTCJun 25, 06:00 UTC30m
2026-06-25 J886KT - Jun 25, 03:15 UTCJun 25, 04:10 UTC55m
2026-06-25 J979KT - Jun 25, 01:50 UTCJun 25, 02:39 UTC50m
2026-06-24 J015KT - Jun 24, 05:20 UTCJun 24, 06:25 UTC1h 5m
2026-06-24 J009KT - Jun 24, 03:44 UTCJun 24, 04:39 UTC55m
2026-06-24 J947KT - Jun 24, 01:55 UTCJun 24, 02:30 UTC35m
2026-06-23 J826KT - Jun 23, 07:35 UTCJun 23, 08:39 UTC1h 5m
2026-06-23 J997KT - Jun 23, 05:29 UTCJun 23, 06:15 UTC45m
2026-06-23 J997KT - Jun 23, 04:00 UTCJun 23, 04:45 UTC45m
2026-06-23 J015KT - Jun 23, 01:59 UTCJun 23, 03:00 UTC1h 0m
2026-06-22 J038KT - Jun 22, 08:50 UTCJun 22, 09:34 UTC45m
2026-06-22 J038KT - Jun 22, 07:04 UTCJun 22, 08:00 UTC55m
2026-06-22 J937KT - Jun 22, 05:34 UTCJun 22, 05:44 UTC10m
2026-06-22 J047KT - Jun 22, 03:40 UTCJun 22, 04:30 UTC50m
2026-06-19 J999KT - Jun 19, 06:59 UTCJun 19, 07:09 UTC10m
2026-06-19 J999KT - Jun 19, 03:24 UTCJun 19, 03:34 UTC10m
2026-06-18 J045KT - Jun 18, 06:25 UTCJun 18, 07:20 UTC55m

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 LL-0119 page for operator, model, and routing details .

Mode-S 8A0840 frequently asked

What is Mode-S code 8A0840?
8A0840 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to LL-0119.
Where is Mode-S 8A0840 registered?
Mode-S code 8A0840 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0840 broadcasting right now?
No active broadcast right now. Last signal was 40m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0840, octal 42404100, decimal 9,046,080.
What flights does 8A0840 operate?
Mode-S 8A0840 has broadcast 20 distinct callsigns, including J009KT, J050KT, J985KT, WGB019, J042KT.