Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

8A0520

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-LAY · AIRBUS A-320

Hex
8A0520
Octal
42402440
Decimal
9,045,280
Country
ID
Tail
PK-LAY
Type
A320
No current signal · last broadcast 2h ago
Flights observed
125
Distinct callsigns
20
Country
ID
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 8A0520.

Country allocation

The ICAO 24-bit address 8A0520 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
BTK7151 Batik Air 5 2026-04-21
BTK7150 Batik Air 4 2026-04-21
BTK7157 Batik Air 3 2026-04-20
BTK7055 Batik Air 3 2026-05-19
BTK6351 Batik Air 3 2026-04-27
BTK6242 Batik Air 3 2026-04-20
BTK7581 Batik Air 2 2026-05-04
BTK7579 Batik Air 2 2026-05-26
BTK7517 Batik Air 2 2026-05-18
BTK7512 Batik Air 2 2026-05-18
BTK7511 Batik Air 2 2026-05-17
BTK7368 Batik Air 2 2026-05-31
BTK7311 Batik Air 2 2026-05-17
BTK7310 Batik Air 2 2026-05-04
BTK7309 Batik Air 2 2026-05-20
BTK7283 Batik Air 2 2026-05-08
BTK6899 Batik Air 2 2026-04-27
BTK6898 Batik Air 2 2026-04-27
BTK6887 Batik Air 2 2026-05-07
BTK6865 Batik Air 2 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 BTK6288 CGK → UPG Jun 2, 17:45 UTCJun 2, 18:10 UTC25m
2026-06-02 BTK6281 MDC → CGK Jun 2, 11:40 UTCJun 2, 11:55 UTC15m
2026-06-01 BTK6140 CGK → TTE Jun 1, 19:40 UTCJun 1, 20:05 UTC25m
2026-06-01 BTK6293 UPG → CGK Jun 1, 12:00 UTCJun 1, 12:15 UTC15m
2026-06-01 BTK6292 CGK → UPG Jun 1, 02:10 UTCJun 1, 02:35 UTC25m
2026-06-01 BTK6375 SOC → CGK Jun 1, 00:15 UTCJun 1, 00:55 UTC40m
2026-05-31 BTK7368 CGK → SOC May 31, 10:45 UTCMay 31, 11:10 UTC25m
2026-05-30 BTK6508 CGK → DPS May 30, 07:40 UTCMay 30, 08:25 UTC45m
2026-05-30 BTK6567 MLG → CGK May 30, 04:45 UTCMay 30, 05:00 UTC15m
2026-05-30 BTK6566 CGK → MLG May 30, 01:45 UTCMay 30, 02:30 UTC45m
2026-05-28 BTK6572 CGK → SUB May 28, 22:50 UTCMay 29, 11:50 UTC13h 0m
2026-05-28 BTK6143 UPG → CGK May 28, 10:15 UTCMay 28, 10:45 UTC30m
2026-05-26 BTK6182 CGK → UPG May 26, 16:15 UTCMay 26, 16:50 UTC35m
2026-05-26 BTK7579 SUB → CGK May 26, 11:50 UTCMay 26, 12:05 UTC15m
2026-05-26 BTK6578 CGK → SUB May 26, 08:39 UTCMay 26, 09:25 UTC45m
2026-05-26 BTK6857 PKU → CGK May 26, 04:30 UTCMay 26, 05:45 UTC1h 15m
2026-05-26 BTK6852 CGK → PKU May 26, 02:10 UTCMay 26, 03:09 UTC1h 0m
2026-05-25 BTK6807 DJB → CGK May 25, 23:14 UTCMay 26, 00:09 UTC55m
2026-05-25 BTK6806 CGK → DJB May 25, 11:25 UTCMay 25, 12:20 UTC55m
2026-05-25 BTK6526 CGK → LBJ May 25, 03:00 UTCMay 25, 07:55 UTC4h 55m
2026-05-24 BTK6200 CGK → PKY May 24, 08:45 UTCMay 24, 08:55 UTC10m
2026-05-24 BTK6825 TNJ → CGK May 24, 05:50 UTCMay 24, 06:05 UTC15m
2026-05-24 BTK6825 TNJ → CGK May 24, 05:05 UTCMay 24, 05:15 UTC10m
2026-05-24 BTK6824 CGK → TNJ May 24, 02:45 UTCMay 24, 03:40 UTC55m
2026-05-23 BTK6885 KNO → CGK May 23, 23:00 UTCMay 24, 00:50 UTC1h 50m
2026-05-23 BTK6886 CGK → KNO May 23, 08:10 UTCMay 23, 09:25 UTC1h 15m
2026-05-23 BTK6857 PKU → CGK May 23, 04:55 UTCMay 23, 06:10 UTC1h 15m
2026-05-23 BTK6852 CGK → PKU May 23, 02:10 UTCMay 23, 03:15 UTC1h 4m
2026-05-22 BTK6264 CGK → UPG May 22, 19:25 UTCMay 23, 00:15 UTC4h 50m
2026-05-22 BTK6280 CGK → MDC May 22, 05:25 UTCMay 22, 05:40 UTC15m
2026-05-21 BTK6575 SUB → CGK May 21, 10:25 UTCMay 21, 13:50 UTC3h 25m
2026-05-21 BTK7051 HLP → PLM May 21, 06:30 UTCMay 21, 06:40 UTC10m
2026-05-21 BTK7513 HLP → SUB May 21, 02:05 UTCMay 21, 04:50 UTC2h 45m
2026-05-20 BTK7508 SUB → HLP May 20, 22:30 UTCMay 20, 22:50 UTC20m
2026-05-20 BTK7503 HLP → SUB May 20, 11:35 UTCMay 20, 12:15 UTC40m
2026-05-20 BTK7309 HLP → DPS May 20, 06:40 UTCMay 20, 10:30 UTC3h 50m
2026-05-20 BTK7054 PLM → HLP May 20, 05:05 UTCMay 20, 05:20 UTC15m
2026-05-19 BTK7055 HLP → PLM May 19, 12:25 UTCMay 19, 12:40 UTC15m
2026-05-19 BTK7501 HLP → SUB May 19, 06:35 UTCMay 19, 09:50 UTC3h 15m
2026-05-18 BTK7055 HLP → PLM May 18, 12:15 UTCMay 18, 12:30 UTC15m
2026-05-18 BTK7512 SUB → HLP May 18, 09:35 UTCMay 18, 10:10 UTC35m
2026-05-18 BTK7517 HLP → SUB May 18, 04:05 UTCMay 18, 04:45 UTC40m
2026-05-17 BTK7511 HLP → SUB May 17, 22:30 UTCMay 17, 22:50 UTC20m
2026-05-17 BTK7311 HLP → DPS May 17, 09:15 UTCMay 17, 13:10 UTC3h 55m
2026-05-17 BTK7309 HLP → DPS May 17, 04:05 UTCMay 17, 08:10 UTC4h 5m
2026-05-16 BTK7055 HLP → PLM May 16, 12:25 UTCMay 16, 12:50 UTC25m
2026-05-16 BTK7512 SUB → HLP May 16, 11:05 UTCMay 16, 11:16 UTC10m
2026-05-15 BTK6406 CGK → SUB May 15, 23:45 UTCMay 16, 10:05 UTC10h 21m
2026-05-09 BTK6576 CGK → SUB May 9, 10:35 UTCMay 9, 11:10 UTC35m
2026-05-09 BTK7108 PDG → CGK May 9, 05:25 UTCMay 9, 09:20 UTC3h 55m

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

Mode-S 8A0520 frequently asked

What is Mode-S code 8A0520?
8A0520 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-LAY.
Where is Mode-S 8A0520 registered?
Mode-S code 8A0520 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0520 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0520, octal 42402440, decimal 9,045,280.
What flights does 8A0520 operate?
Mode-S 8A0520 has broadcast 20 distinct callsigns, including BTK7151, BTK7150, BTK7157, BTK7055, BTK6351.