Apparatus

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sensors Mode-S transponder

8A0519

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-LAQ · AIRBUS A-320

Hex
8A0519
Octal
42402431
Decimal
9,045,273
Country
ID
Tail
PK-LAQ
Type
A320
No current signal · last broadcast 1h ago
Flights observed
104
Distinct callsigns
20
Country
ID
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 8A0519.

Country allocation

The ICAO 24-bit address 8A0519 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
BTK6509 Batik Air 6 2026-05-02
BTK7630 Batik Air 5 2026-05-27
BTK6825 Batik Air 5 2026-05-26
BTK6508 Batik Air 5 2026-05-23
BTK6824 Batik Air 4 2026-05-26
BTK6899 Batik Air 3 2026-04-16
BTK6818 Batik Air 3 2026-05-26
BTK7631 Batik Air 2 2026-05-27
BTK7532 Batik Air 2 2026-05-19
BTK7531 Batik Air 2 2026-05-19
BTK7368 Batik Air 2 2026-04-28
BTK7283 Batik Air 2 2026-04-28
BTK7041 Batik Air 2 2026-05-20
BTK7040 Batik Air 2 2026-05-20
BTK7010 Batik Air 2 2026-05-08
BTK6871 Batik Air 2 2026-05-21
BTK6870 Batik Air 2 2026-05-21
BTK6540 Batik Air 2 2026-05-08
BTK6526 Batik Air 2 2026-04-30
BTK6375 Batik Air 2 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BTK6378 CGK → YIA May 30, 03:15 UTCMay 30, 03:40 UTC25m
2026-05-29 BTK6368 CGK → YIA May 29, 23:30 UTCMay 30, 02:00 UTC2h 30m
2026-05-27 BTK7630 DMK → CGK May 27, 09:50 UTCMay 27, 10:10 UTC20m
2026-05-27 BTK7630 DMK → CGK May 27, 07:05 UTCMay 27, 09:20 UTC2h 15m
2026-05-27 BTK7631 CGK → DMK May 27, 02:34 UTCMay 27, 05:49 UTC3h 15m
2026-05-26 BTK6818 CGK → BKS May 26, 08:24 UTCMay 26, 08:34 UTC10m
2026-05-26 BTK6825 TNJ → CGK May 26, 05:49 UTCMay 26, 05:59 UTC10m
2026-05-26 BTK6825 TNJ → CGK May 26, 05:00 UTCMay 26, 05:15 UTC15m
2026-05-26 BTK6824 CGK → TNJ May 26, 02:39 UTCMay 26, 03:35 UTC55m
2026-05-25 BTK6200 CGK → PKY May 25, 08:40 UTCMay 25, 08:50 UTC10m
2026-05-23 BTK6508 CGK → DPS May 23, 07:45 UTCMay 23, 08:10 UTC25m
2026-05-23 BTK6585 SUB → CGK May 23, 04:25 UTCMay 23, 04:35 UTC10m
2026-05-23 BTK6584 CGK → SUB May 23, 01:20 UTCMay 23, 01:45 UTC25m
2026-05-22 BTK6818 CGK → BKS May 22, 08:35 UTCMay 22, 08:55 UTC20m
2026-05-22 BTK6825 TNJ → CGK May 22, 05:15 UTCMay 22, 05:30 UTC15m
2026-05-22 BTK6824 CGK → TNJ May 22, 02:45 UTCMay 22, 03:35 UTC50m
2026-05-21 BTK6871 PLM → CGK May 21, 07:35 UTCMay 21, 07:45 UTC10m
2026-05-21 BTK6870 CGK → PLM May 21, 05:20 UTCMay 21, 05:35 UTC15m
2026-05-21 BTK6229 PNK → CGK May 21, 03:55 UTCMay 21, 04:10 UTC15m
2026-05-21 BTK6228 CGK → PNK May 21, 00:50 UTCMay 21, 01:00 UTC10m
2026-05-20 BTK7040 SOC → HLP May 20, 11:00 UTCMay 20, 11:45 UTC45m
2026-05-20 BTK7041 HLP → SOC May 20, 08:50 UTCMay 20, 10:05 UTC1h 15m
2026-05-20 BTK6339 SRG → CGK May 20, 05:45 UTCMay 20, 06:10 UTC25m
2026-05-19 BTK6338 CGK → SRG May 19, 23:55 UTCMay 20, 00:15 UTC20m
2026-05-19 BTK6353 SRG → CGK May 19, 09:35 UTCMay 19, 12:05 UTC2h 30m
2026-05-19 BTK7532 SOC → HLP May 19, 07:05 UTCMay 19, 07:35 UTC30m
2026-05-19 BTK7531 HLP → SOC May 19, 04:45 UTCMay 19, 05:45 UTC1h 0m
2026-05-19 BTK6343 SRG → CGK May 19, 02:50 UTCMay 19, 03:20 UTC30m
2026-05-19 BTK6342 CGK → SRG May 19, 00:45 UTCMay 19, 01:10 UTC25m
2026-05-18 BTK7040 SOC → HLP May 18, 11:15 UTCMay 18, 11:25 UTC10m
2026-05-18 BTK7041 HLP → SOC May 18, 08:45 UTCMay 18, 09:20 UTC35m
2026-05-18 BTK7532 SOC → HLP May 18, 07:25 UTCMay 18, 07:40 UTC15m
2026-05-18 BTK7531 HLP → SOC May 18, 04:55 UTCMay 18, 05:30 UTC35m
2026-05-18 BTK6343 SRG → CGK May 18, 03:35 UTCMay 18, 03:45 UTC10m
2026-05-18 BTK6342 CGK → SRG May 18, 01:05 UTCMay 18, 01:30 UTC25m
2026-05-11 BTK6269 UPG → CGK May 11, 13:55 UTCMay 11, 14:30 UTC35m
2026-05-09 BTK6296 CGK → UPG May 9, 09:55 UTCMay 9, 10:25 UTC30m
2026-05-09 BTK6253 BPN → CGK May 9, 08:35 UTCMay 9, 08:50 UTC15m
2026-05-08 BTK6540 CGK → KOE May 8, 19:15 UTCMay 8, 19:35 UTC20m
2026-05-08 BTK6374 CGK → YIA May 8, 11:14 UTCMay 8, 13:55 UTC2h 40m
2026-05-08 BTK6821 LLJ → CGK May 8, 09:44 UTCMay 8, 09:54 UTC10m
2026-05-08 BTK6820 CGK → LLJ May 8, 07:14 UTCMay 8, 07:34 UTC20m
2026-05-08 BTK7010 KNO → HLP May 8, 05:09 UTCMay 8, 05:24 UTC15m
2026-05-08 BTK7010 KNO → HLP May 8, 00:09 UTCMay 8, 04:34 UTC4h 25m
2026-05-07 BTK6293 UPG → CGK May 7, 12:00 UTCMay 7, 12:10 UTC10m
2026-05-07 BTK6292 CGK → UPG May 7, 02:40 UTCMay 7, 03:05 UTC25m
2026-05-07 BTK6171 AMQ → CGK May 7, 01:10 UTCMay 7, 01:25 UTC15m
2026-05-06 BTK6205 PKN → CGK May 6, 10:20 UTCMay 6, 10:30 UTC10m
2026-05-06 BTK6339 SRG → CGK May 6, 06:05 UTCMay 6, 06:20 UTC15m
2026-05-05 BTK6338 CGK → SRG May 5, 23:50 UTCMay 6, 00:15 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-LAQ page for operator, model, and routing details .

Mode-S 8A0519 frequently asked

What is Mode-S code 8A0519?
8A0519 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-LAQ.
Where is Mode-S 8A0519 registered?
Mode-S code 8A0519 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0519 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0519, octal 42402431, decimal 9,045,273.
What flights does 8A0519 operate?
Mode-S 8A0519 has broadcast 20 distinct callsigns, including BTK6509, BTK7630, BTK6825, BTK6508, BTK6824.