Apparatus

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sensors Mode-S transponder

8A03AD

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GLS · AIRBUS A-320

Hex
8A03AD
Octal
42401655
Decimal
9,044,909
Country
ID
Tail
PK-GLS
Type
A320
No current signal · last broadcast 3h ago
Flights observed
356
Distinct callsigns
20
Country
ID
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 8A03AD.

Country allocation

The ICAO 24-bit address 8A03AD 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
CTV933 - 9 2026-07-14
CTV174 - 8 2026-07-14
CTV959 - 7 2026-07-09
CTV932 - 7 2026-07-14
CTV941 Escuela De Pilotos Are Aviacion 6 2026-06-12
CTV915 - 6 2026-07-13
CTV885 Escuela De Pilotos Are Aviacion 6 2026-05-29
CTV884 Escuela De Pilotos Are Aviacion 6 2026-05-28
CTV688 Escuela De Pilotos Are Aviacion 6 2026-05-28
CTV961 - 5 2026-07-11
CTV960 - 5 2026-07-11
CTV958 - 5 2026-07-09
CTV940 Escuela De Pilotos Are Aviacion 5 2026-06-11
CTV914 - 5 2026-07-13
CTV480 Escuela De Pilotos Are Aviacion 5 2026-06-10
CTV999 - 4 2026-07-03
CTV998 - 4 2026-07-03
CTV997 - 4 2026-07-14
CTV996 - 4 2026-07-14
CTV981 - 4 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CTV210 - Jul 14, 18:40 UTCJul 14, 19:05 UTC25m
2026-07-14 CTV727 - Jul 14, 13:25 UTCJul 14, 13:45 UTC20m
2026-07-14 CTV174 - Jul 14, 10:45 UTCJul 14, 11:25 UTC40m
2026-07-14 CTV997 - Jul 14, 09:10 UTCJul 14, 09:40 UTC30m
2026-07-14 CTV996 - Jul 14, 07:40 UTCJul 14, 08:00 UTC20m
2026-07-14 CTV933 - Jul 14, 05:00 UTCJul 14, 06:35 UTC1h 35m
2026-07-14 CTV932 - Jul 14, 02:40 UTCJul 14, 03:50 UTC1h 10m
2026-07-13 CTV915 - Jul 13, 15:15 UTCJul 13, 17:00 UTC1h 45m
2026-07-13 CTV914 - Jul 13, 12:15 UTCJul 13, 13:50 UTC1h 35m
2026-07-13 CTV415 - Jul 13, 10:45 UTCJul 13, 11:05 UTC20m
2026-07-13 CTV933 - Jul 13, 06:10 UTCJul 13, 06:30 UTC20m
2026-07-13 CTV933 - Jul 13, 05:05 UTCJul 13, 05:40 UTC35m
2026-07-13 CTV932 - Jul 13, 02:40 UTCJul 13, 03:50 UTC1h 10m
2026-07-13 CTV603 - Jul 13, 01:05 UTCJul 13, 01:20 UTC15m
2026-07-12 CTV602 - Jul 12, 19:10 UTCJul 12, 19:50 UTC40m
2026-07-12 CTV727 - Jul 12, 13:25 UTCJul 12, 13:40 UTC15m
2026-07-12 CTV174 - Jul 12, 10:30 UTCJul 12, 11:15 UTC45m
2026-07-12 CTV997 - Jul 12, 09:00 UTCJul 12, 09:30 UTC30m
2026-07-12 CTV996 - Jul 12, 07:35 UTCJul 12, 07:50 UTC15m
2026-07-12 CTV933 - Jul 12, 04:55 UTCJul 12, 06:15 UTC1h 20m
2026-07-12 CTV932 - Jul 12, 02:35 UTCJul 12, 03:45 UTC1h 10m
2026-07-11 CTV993 - Jul 11, 10:30 UTCJul 11, 10:45 UTC15m
2026-07-11 CTV992 - Jul 11, 08:45 UTCJul 11, 09:05 UTC20m
2026-07-11 CTV943 - Jul 11, 06:25 UTCJul 11, 07:35 UTC1h 10m
2026-07-11 CTV942 - Jul 11, 04:01 UTCJul 11, 05:01 UTC1h 0m
2026-07-11 CTV961 - Jul 11, 02:00 UTCJul 11, 02:55 UTC55m
2026-07-11 CTV960 - Jul 11, 00:10 UTCJul 11, 01:05 UTC55m
2026-07-10 CTV887 - Jul 10, 12:15 UTCJul 10, 13:30 UTC1h 15m
2026-07-10 CTV886 - Jul 10, 09:15 UTCJul 10, 10:55 UTC1h 40m
2026-07-10 CTV419 - Jul 10, 07:35 UTCJul 10, 07:50 UTC15m
2026-07-09 CTV739 - Jul 9, 23:20 UTCJul 10, 03:10 UTC3h 50m
2026-07-09 CTV217 - Jul 9, 18:30 UTCJul 9, 18:45 UTC15m
2026-07-09 CTV216 - Jul 9, 13:40 UTCJul 9, 14:05 UTC25m
2026-07-09 CTV959 - Jul 9, 11:00 UTCJul 9, 11:15 UTC15m
2026-07-09 CTV959 - Jul 9, 09:45 UTCJul 9, 10:20 UTC35m
2026-07-09 CTV958 - Jul 9, 07:30 UTCJul 9, 08:30 UTC1h 0m
2026-07-09 CTV971 - Jul 9, 06:00 UTCJul 9, 06:20 UTC20m
2026-07-08 CTV340 - Jul 8, 07:25 UTCJul 8, 12:25 UTC5h 0m
2026-07-08 CTV9773 - Jul 8, 03:35 UTCJul 8, 06:15 UTC2h 40m
2026-07-08 CTV439 BPN → CGK Jul 8, 02:10 UTCJul 8, 02:20 UTC10m
2026-07-07 CTV752 - Jul 7, 02:40 UTCJul 7, 05:25 UTC2h 45m
2026-07-07 CTV981 - Jul 7, 01:30 UTCJul 7, 01:40 UTC10m
2026-07-06 CTV980 - Jul 6, 23:25 UTCJul 6, 23:40 UTC15m
2026-07-06 CTV727 SUB → CGK Jul 6, 12:55 UTCJul 6, 13:25 UTC30m
2026-07-06 CTV174 CGK → SUB Jul 6, 10:20 UTCJul 6, 11:00 UTC40m
2026-07-06 CTV997 - Jul 6, 09:15 UTCJul 6, 09:30 UTC15m
2026-07-06 CTV996 - Jul 6, 07:40 UTCJul 6, 07:55 UTC15m
2026-07-06 CTV752 - Jul 6, 02:45 UTCJul 6, 06:05 UTC3h 20m
2026-07-06 CTV981 - Jul 6, 01:20 UTCJul 6, 01:35 UTC15m
2026-07-05 CTV980 - Jul 5, 23:15 UTCJul 5, 23:35 UTC20m

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

Mode-S 8A03AD frequently asked

What is Mode-S code 8A03AD?
8A03AD is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GLS.
Where is Mode-S 8A03AD registered?
Mode-S code 8A03AD is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A03AD broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A03AD, octal 42401655, decimal 9,044,909.
What flights does 8A03AD operate?
Mode-S 8A03AD has broadcast 20 distinct callsigns, including CTV933, CTV174, CTV959, CTV932, CTV941.