Apparatus

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sensors Mode-S transponder

8A0A1F

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-BLD · AIRBUS A-320

Hex
8A0A1F
Octal
42405037
Decimal
9,046,559
Country
ID
Tail
PK-BLD
Type
A320
No current signal · last broadcast 21d ago
Flights observed
95
Distinct callsigns
20
Country
ID
Last broadcast
21d ago

Last known position

Most recent position reported by Mode-S 8A0A1F.

Country allocation

The ICAO 24-bit address 8A0A1F 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
BTK7532 Batik Air 13 2026-04-28
BTK7531 Batik Air 13 2026-04-28
BTK6342 Batik Air 11 2026-04-28
BTK7041 Batik Air 10 2026-04-28
BTK7040 Batik Air 10 2026-04-28
BTK6343 Batik Air 9 2026-04-28
BTK6560 Batik Air 4 2026-05-07
BTK6257 Batik Air 4 2026-05-08
BTK6803 Batik Air 3 2026-05-03
BTK6814 Batik Air 2 2026-05-07
BTK6584 Batik Air 2 2026-05-07
BTK6256 Batik Air 2 2026-05-05
BTK6236 Batik Air 2 2026-04-25
BTK7530 Batik Air 1 2026-05-08
BTK6819 Batik Air 1 2026-05-06
BTK6818 Batik Air 1 2026-05-06
BTK6815 Batik Air 1 2026-05-04
BTK6802 Batik Air 1 2026-05-03
BTK6561 Batik Air 1 2026-05-03
BTK6406 Batik Air 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-08 BTK7530 YIA → HLP May 8, 08:24 UTCMay 8, 11:19 UTC2h 55m
2026-05-08 BTK6257 AAP → CGK May 8, 06:54 UTCMay 8, 07:04 UTC10m
2026-05-07 BTK6560 CGK → PLW May 7, 19:55 UTCMay 7, 20:05 UTC10m
2026-05-07 BTK6814 CGK → BKS May 7, 07:15 UTCMay 7, 10:05 UTC2h 50m
2026-05-07 BTK6584 CGK → SUB May 7, 01:15 UTCMay 7, 04:40 UTC3h 25m
2026-05-06 BTK6819 BKS → CGK May 6, 23:35 UTCMay 7, 00:05 UTC30m
2026-05-06 BTK6818 CGK → BKS May 6, 08:25 UTCMay 6, 08:40 UTC15m
2026-05-06 BTK6257 AAP → CGK May 6, 06:45 UTCMay 6, 07:01 UTC15m
2026-05-05 BTK6560 CGK → PLW May 5, 19:55 UTCMay 5, 20:05 UTC10m
2026-05-05 BTK6257 AAP → CGK May 5, 07:40 UTCMay 5, 07:50 UTC10m
2026-05-05 BTK6256 CGK → AAP May 5, 02:45 UTCMay 5, 02:55 UTC10m
2026-05-04 BTK6560 CGK → PLW May 4, 20:05 UTCMay 4, 20:25 UTC20m
2026-05-04 BTK6815 BKS → CGK May 4, 12:00 UTCMay 4, 12:20 UTC20m
2026-05-04 BTK6814 CGK → BKS May 4, 09:15 UTCMay 4, 09:35 UTC20m
2026-05-04 BTK6256 CGK → AAP May 4, 02:19 UTCMay 4, 02:30 UTC10m
2026-05-03 BTK6803 DJB → CGK May 3, 12:35 UTCMay 3, 12:50 UTC15m
2026-05-03 BTK6803 DJB → CGK May 3, 11:55 UTCMay 3, 12:05 UTC10m
2026-05-03 BTK6802 CGK → DJB May 3, 09:50 UTCMay 3, 10:40 UTC50m
2026-05-03 BTK6257 AAP → CGK May 3, 07:00 UTCMay 3, 07:10 UTC10m
2026-05-03 BTK6561 PLW → CGK May 3, 01:10 UTCMay 3, 01:25 UTC15m
2026-05-02 BTK6560 CGK → PLW May 2, 19:50 UTCMay 2, 20:25 UTC35m
2026-05-01 BTK6338 CGK → SRG May 1, 23:40 UTCMay 2, 00:05 UTC25m
2026-05-01 BTK6401 SUB → CGK May 1, 10:30 UTCMay 1, 10:40 UTC10m
2026-05-01 BTK6406 CGK → SUB May 1, 06:40 UTCMay 1, 07:30 UTC50m
2026-05-01 BTK6584 CGK → SUB May 1, 01:25 UTCMay 1, 04:30 UTC3h 5m
2026-04-28 BTK7040 SOC → HLP Apr 28, 10:40 UTCApr 28, 11:35 UTC55m
2026-04-28 BTK7041 HLP → SOC Apr 28, 08:50 UTCApr 28, 09:35 UTC45m
2026-04-28 BTK7532 SOC → HLP Apr 28, 07:05 UTCApr 28, 07:50 UTC45m
2026-04-28 BTK7531 HLP → SOC Apr 28, 04:45 UTCApr 28, 05:30 UTC45m
2026-04-28 BTK6343 SRG → CGK Apr 28, 02:55 UTCApr 28, 03:20 UTC25m
2026-04-28 BTK6342 CGK → SRG Apr 28, 01:10 UTCApr 28, 01:35 UTC25m
2026-04-27 BTK7040 SOC → HLP Apr 27, 10:50 UTCApr 27, 11:35 UTC45m
2026-04-27 BTK7041 HLP → SOC Apr 27, 08:45 UTCApr 27, 09:20 UTC35m
2026-04-27 BTK7532 SOC → HLP Apr 27, 06:40 UTCApr 27, 07:30 UTC50m
2026-04-27 BTK7531 HLP → SOC Apr 27, 04:35 UTCApr 27, 05:25 UTC50m
2026-04-27 BTK6343 SRG → CGK Apr 27, 02:45 UTCApr 27, 03:15 UTC30m
2026-04-27 BTK6342 CGK → SRG Apr 27, 00:50 UTCApr 27, 01:15 UTC25m
2026-04-26 BTK6267 UPG → CGK Apr 26, 04:30 UTCApr 26, 04:45 UTC15m
2026-04-25 BTK6236 CGK → UPG Apr 25, 23:25 UTCApr 25, 23:55 UTC30m
2026-04-21 BTK6236 CGK → UPG Apr 21, 23:25 UTCApr 21, 23:40 UTC15m
2026-04-20 BTK7040 SOC → HLP Apr 20, 10:55 UTCApr 20, 11:40 UTC45m
2026-04-20 BTK7041 HLP → SOC Apr 20, 08:45 UTCApr 20, 09:30 UTC45m
2026-04-20 BTK7532 SOC → HLP Apr 20, 06:40 UTCApr 20, 07:35 UTC55m
2026-04-20 BTK7531 HLP → SOC Apr 20, 04:45 UTCApr 20, 05:30 UTC45m
2026-04-20 BTK6343 SRG → CGK Apr 20, 03:10 UTCApr 20, 03:25 UTC15m
2026-04-20 BTK6343 SRG → CGK Apr 20, 02:50 UTCApr 20, 03:00 UTC10m
2026-04-20 BTK6342 CGK → SRG Apr 20, 00:50 UTCApr 20, 01:20 UTC30m
2026-04-19 BTK7040 SOC → HLP Apr 19, 10:45 UTCApr 19, 11:35 UTC50m
2026-04-19 BTK7041 HLP → SOC Apr 19, 08:55 UTCApr 19, 09:45 UTC50m
2026-04-19 BTK7532 SOC → HLP Apr 19, 06:30 UTCApr 19, 07:20 UTC50m

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

Mode-S 8A0A1F frequently asked

What is Mode-S code 8A0A1F?
8A0A1F is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-BLD.
Where is Mode-S 8A0A1F registered?
Mode-S code 8A0A1F is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0A1F broadcasting right now?
No active broadcast right now. Last signal was 21d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0A1F, octal 42405037, decimal 9,046,559.
What flights does 8A0A1F operate?
Mode-S 8A0A1F has broadcast 20 distinct callsigns, including BTK7532, BTK7531, BTK6342, BTK7041, BTK7040.