Apparatus

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sensors Mode-S transponder

8A03AB

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GLQ · AIRBUS A-320

Hex
8A03AB
Octal
42401653
Decimal
9,044,907
Country
ID
Tail
PK-GLQ
Type
A320
No current signal · last broadcast Jul 25, 14:15 UTC
Flights observed
436
Distinct callsigns
20
Country
ID
Last broadcast
Jul 25, 14:15 UTC

Last known position

Most recent position reported by Mode-S 8A03AB.

Country allocation

The ICAO 24-bit address 8A03AB 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
CTV887 - 8 2026-07-17
CTV967 Escuela De Pilotos Are Aviacion 7 2026-07-20
CTV947 - 7 2026-07-12
CTV937 Escuela De Pilotos Are Aviacion 7 2026-06-21
CTV885 - 7 2026-07-15
CTV841 - 7 2026-06-29
CTV989 - 6 2026-07-10
CTV988 - 6 2026-07-11
CTV983 - 6 2026-06-30
CTV982 - 6 2026-06-30
CTV975 - 6 2026-06-14
CTV966 Escuela De Pilotos Are Aviacion 6 2026-07-20
CTV961 - 6 2026-07-04
CTV960 - 6 2026-07-04
CTV953 - 6 2026-07-05
CTV938 - 6 2026-06-21
CTV935 - 6 2026-07-11
CTV934 - 6 2026-07-11
CTV925 - 6 2026-07-11
CTV924 - 6 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CTV172 HLP → SUB Jul 25, 13:35 UTCJul 25, 14:15 UTC40m
2026-07-25 CTV173 SUB → HLP Jul 25, 12:05 UTCJul 25, 12:45 UTC40m
2026-07-24 CTV173 SUB → HLP Jul 24, 14:00 UTCJul 25, 12:45 UTC22h 45m
2026-07-24 CTV173 SUB → HLP Jul 24, 12:40 UTCJul 24, 12:50 UTC10m
2026-07-23 CTV728 CGK → SUB Jul 23, 14:50 UTCJul 24, 12:50 UTC22h 0m
2026-07-23 CTV728 CGK → SUB Jul 23, 14:25 UTCJul 24, 12:45 UTC22h 20m
2026-07-23 CTV9999 CGK → DPS Jul 23, 13:00 UTCJul 23, 13:30 UTC30m
2026-07-23 CTV9998 CGK → TKG Jul 23, 11:25 UTCJul 23, 11:50 UTC25m
2026-07-23 CTV347 UPG → CGK Jul 23, 01:05 UTCJul 23, 10:25 UTC9h 20m
2026-07-22 CTV728 CGK → SUB Jul 22, 14:25 UTCJul 22, 23:40 UTC9h 15m
2026-07-22 CTV689 DPS → CGK Jul 22, 12:15 UTCJul 22, 12:50 UTC35m
2026-07-22 CTV716 CGK → SUB Jul 22, 03:40 UTCJul 22, 04:25 UTC45m
2026-07-22 CTV941 BTH → CGK Jul 22, 01:15 UTCJul 22, 01:25 UTC10m
2026-07-21 CTV940 CGK → BTH Jul 21, 22:30 UTCJul 21, 23:45 UTC1h 15m
2026-07-21 CTV341 UPG → CGK Jul 21, 11:30 UTCJul 21, 11:45 UTC15m
2026-07-21 CTV340 CGK → UPG Jul 21, 06:55 UTCJul 21, 07:20 UTC25m
2026-07-21 CTV719 SUB → CGK Jul 21, 05:35 UTCJul 21, 05:55 UTC20m
2026-07-21 CTV718 CGK → SUB Jul 21, 02:20 UTCJul 21, 03:05 UTC45m
2026-07-21 CTV413 - Jul 21, 00:55 UTCJul 21, 01:10 UTC15m
2026-07-20 CTV412 - Jul 20, 10:55 UTCJul 20, 11:05 UTC10m
2026-07-20 CTV967 DJB → CGK Jul 20, 09:00 UTCJul 20, 10:00 UTC1h 0m
2026-07-20 CTV966 CGK → DJB Jul 20, 07:10 UTCJul 20, 07:30 UTC20m
2026-07-20 CTV491 - Jul 20, 05:50 UTCJul 20, 06:10 UTC20m
2026-07-20 CTV490 CGK → BDJ Jul 20, 02:20 UTCJul 20, 02:30 UTC10m
2026-07-20 CTV301 - Jul 20, 00:40 UTCJul 20, 00:55 UTC15m
2026-07-19 CTV300 - Jul 19, 18:05 UTCJul 19, 18:15 UTC10m
2026-07-19 CTV945 - Jul 19, 14:20 UTCJul 19, 14:35 UTC15m
2026-07-19 CTV945 - Jul 19, 13:20 UTCJul 19, 13:45 UTC25m
2026-07-19 CTV944 CGK → BTH Jul 19, 11:05 UTCJul 19, 12:05 UTC1h 0m
2026-07-19 CTV632 - Jul 19, 02:40 UTCJul 19, 07:35 UTC4h 55m
2026-07-18 CTV602 - Jul 18, 19:30 UTCJul 19, 01:30 UTC6h 0m
2026-07-18 CTV426 - Jul 18, 10:25 UTCJul 18, 15:20 UTC4h 55m
2026-07-18 CTV977 - Jul 18, 07:45 UTCJul 18, 08:00 UTC15m
2026-07-18 CTV9995 - Jul 18, 03:55 UTCJul 18, 04:15 UTC20m
2026-07-18 CTV9994 - Jul 18, 02:29 UTCJul 18, 02:45 UTC15m
2026-07-17 CTV887 - Jul 17, 12:35 UTCJul 17, 14:30 UTC1h 55m
2026-07-17 CTV886 - Jul 17, 09:30 UTCJul 17, 11:10 UTC1h 40m
2026-07-17 CTV419 - Jul 17, 07:50 UTCJul 17, 08:04 UTC15m
2026-07-17 CTV739 - Jul 17, 03:10 UTCJul 17, 03:25 UTC15m
2026-07-16 CTV738 - Jul 16, 23:10 UTCJul 16, 23:55 UTC45m
2026-07-16 CTV178 - Jul 16, 00:15 UTCJul 16, 15:00 UTC14h 45m
2026-07-15 CTV195 - Jul 15, 14:30 UTCJul 15, 14:40 UTC10m
2026-07-15 CTV662 - Jul 15, 09:50 UTCJul 15, 10:15 UTC25m
2026-07-15 CTV907 - Jul 15, 08:20 UTCJul 15, 08:35 UTC15m
2026-07-15 CTV906 - Jul 15, 05:55 UTCJul 15, 06:15 UTC20m
2026-07-15 CTV885 - Jul 15, 04:35 UTCJul 15, 04:50 UTC15m
2026-07-15 CTV885 - Jul 15, 03:05 UTCJul 15, 03:45 UTC40m
2026-07-15 CTV884 - Jul 15, 00:10 UTCJul 15, 01:35 UTC1h 25m
2026-07-14 CTV667 - Jul 14, 13:50 UTCJul 14, 14:05 UTC15m
2026-07-14 CTV662 - Jul 14, 09:45 UTCJul 14, 10:25 UTC40m

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

Mode-S 8A03AB frequently asked

What is Mode-S code 8A03AB?
8A03AB is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GLQ.
Where is Mode-S 8A03AB registered?
Mode-S code 8A03AB is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A03AB broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 14:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A03AB, octal 42401653, decimal 9,044,907.
What flights does 8A03AB operate?
Mode-S 8A03AB has broadcast 20 distinct callsigns, including CTV887, CTV967, CTV947, CTV937, CTV885.