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 Jul 26, 19:55 UTC
Flights observed
185
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 19:55 UTC

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
BTK6257 Batik Air 16 2026-07-26
BTK7532 Batik Air 13 2026-04-28
BTK7531 Batik Air 13 2026-04-28
BTK6709 Batik Air 13 2026-07-26
BTK6561 Batik Air 13 2026-07-26
BTK6708 Batik Air 12 2026-07-26
BTK6256 Batik Air 12 2026-07-26
BTK6560 Batik Air 11 2026-07-26
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
BTK6803 Batik Air 3 2026-05-03
BTK6861 Batik Air 2 2026-07-23
BTK6814 Batik Air 2 2026-05-07
BTK6584 Batik Air 2 2026-05-07
BTK6236 Batik Air 2 2026-04-25
BTK7533 - 1 2026-07-09
BTK7530 Batik Air 1 2026-05-08
BTK6871 - 1 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BTK6560 CGK → PLW Jul 26, 19:45 UTCJul 26, 19:55 UTC10m
2026-07-26 BTK6709 TKG → CGK Jul 26, 09:50 UTCJul 26, 10:15 UTC25m
2026-07-26 BTK6708 CGK → TKG Jul 26, 08:15 UTCJul 26, 08:30 UTC15m
2026-07-26 BTK6257 AAP → CGK Jul 26, 06:40 UTCJul 26, 07:00 UTC20m
2026-07-26 BTK6256 CGK → AAP Jul 26, 02:25 UTCJul 26, 02:35 UTC10m
2026-07-26 BTK6561 PLW → CGK Jul 26, 01:00 UTCJul 26, 01:15 UTC15m
2026-07-25 BTK6560 CGK → PLW Jul 25, 19:35 UTCJul 25, 19:45 UTC10m
2026-07-25 BTK6709 TKG → CGK Jul 25, 09:45 UTCJul 25, 10:15 UTC30m
2026-07-25 BTK6708 CGK → TKG Jul 25, 08:25 UTCJul 25, 08:40 UTC15m
2026-07-25 BTK6257 AAP → CGK Jul 25, 06:50 UTCJul 25, 07:05 UTC15m
2026-07-25 BTK6256 CGK → AAP Jul 25, 02:30 UTCJul 25, 02:40 UTC10m
2026-07-25 BTK6561 PLW → CGK Jul 25, 01:05 UTCJul 25, 01:15 UTC10m
2026-07-24 BTK6560 CGK → PLW Jul 24, 19:45 UTCJul 24, 19:55 UTC10m
2026-07-24 BTK6709 TKG → CGK Jul 24, 10:00 UTCJul 24, 10:30 UTC30m
2026-07-24 BTK6708 CGK → TKG Jul 24, 08:35 UTCJul 24, 08:50 UTC15m
2026-07-24 BTK6257 AAP → CGK Jul 24, 07:00 UTCJul 24, 07:15 UTC15m
2026-07-24 BTK6256 CGK → AAP Jul 24, 02:30 UTCJul 24, 02:40 UTC10m
2026-07-24 BTK6561 PLW → CGK Jul 24, 01:00 UTCJul 24, 01:15 UTC15m
2026-07-23 BTK6560 CGK → PLW Jul 23, 19:35 UTCJul 23, 20:05 UTC30m
2026-07-23 BTK6575 CGK → CGK Jul 23, 10:35 UTCJul 23, 13:50 UTC3h 15m
2026-07-23 BTK6345 YIA → CGK Jul 23, 08:50 UTCJul 23, 09:25 UTC35m
2026-07-23 BTK6344 CGK → YIA Jul 23, 06:35 UTCJul 23, 07:00 UTC25m
2026-07-23 BTK6861 BTH → CGK Jul 23, 05:05 UTCJul 23, 05:25 UTC20m
2026-07-23 BTK6861 BTH → CGK Jul 23, 04:10 UTCJul 23, 04:30 UTC20m
2026-07-23 BTK6860 CGK → BTH Jul 23, 01:50 UTCJul 23, 02:45 UTC55m
2026-07-22 BTK6264 CGK → UPG Jul 22, 19:15 UTCJul 23, 00:30 UTC5h 15m
2026-07-22 BTK6709 TKG → CGK Jul 22, 11:15 UTCJul 22, 11:25 UTC10m
2026-07-22 BTK6256 CGK → AAP Jul 22, 02:40 UTCJul 22, 02:50 UTC10m
2026-07-22 BTK6561 PLW → CGK Jul 22, 01:10 UTCJul 22, 01:25 UTC15m
2026-07-21 BTK6560 - Jul 21, 19:40 UTCJul 21, 19:50 UTC10m
2026-07-21 BTK6213 BDJ → CGK Jul 21, 13:40 UTCJul 21, 14:15 UTC35m
2026-07-21 BTK6212 - Jul 21, 10:00 UTCJul 21, 10:10 UTC10m
2026-07-21 BTK6871 - Jul 21, 08:25 UTCJul 21, 08:40 UTC15m
2026-07-21 BTK6870 CGK → PLM Jul 21, 06:05 UTCJul 21, 06:25 UTC20m
2026-07-20 BTK6675 TRK → CGK Jul 20, 08:35 UTCJul 20, 08:50 UTC15m
2026-07-20 BTK6674 - Jul 20, 03:35 UTCJul 20, 03:45 UTC10m
2026-07-20 BTK6723 - Jul 20, 02:10 UTCJul 20, 02:25 UTC15m
2026-07-19 BTK6724 - Jul 19, 20:40 UTCJul 19, 21:05 UTC25m
2026-07-19 BTK6709 - Jul 19, 10:00 UTCJul 19, 10:30 UTC30m
2026-07-19 BTK6708 CGK → TKG Jul 19, 08:35 UTCJul 19, 08:50 UTC15m
2026-07-19 BTK6257 - Jul 19, 07:00 UTCJul 19, 07:15 UTC15m
2026-07-19 BTK6256 CGK → AAP Jul 19, 02:30 UTCJul 19, 02:40 UTC10m
2026-07-19 BTK6561 PLW → CGK Jul 19, 01:00 UTCJul 19, 01:20 UTC20m
2026-07-18 BTK6560 - Jul 18, 19:50 UTCJul 18, 20:00 UTC10m
2026-07-18 BTK6709 - Jul 18, 09:50 UTCJul 18, 10:25 UTC35m
2026-07-18 BTK6708 - Jul 18, 08:25 UTCJul 18, 08:40 UTC15m
2026-07-18 BTK6257 - Jul 18, 07:00 UTCJul 18, 07:15 UTC15m
2026-07-18 BTK6256 CGK → AAP Jul 18, 02:35 UTCJul 18, 02:45 UTC10m
2026-07-18 BTK6561 PLW → CGK Jul 18, 01:05 UTCJul 18, 01:20 UTC15m
2026-07-17 BTK6709 - Jul 17, 09:55 UTCJul 17, 10:25 UTC30m

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 Jul 26, 19:55 UTC.
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 BTK6257, BTK7532, BTK7531, BTK6709, BTK6561.