sensors Mode-S transponder

8A04AB

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GQH · AIRBUS A-320

Hex
8A04AB
Octal
42402253
Decimal
9,045,163
Country
ID
Tail
PK-GQH
Type
A320
No current signal · last broadcast 6h ago
Flights observed
192
Distinct callsigns
20
Country
ID
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 8A04AB.

Country allocation

The ICAO 24-bit address 8A04AB 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CTV250 CGK → UPG Jun 2, 14:35 UTCJun 2, 15:00 UTC25m
2026-06-02 CTV983 PLM → CGK Jun 2, 11:55 UTCJun 2, 12:10 UTC15m
2026-06-02 CTV982 CGK → PLM Jun 2, 09:40 UTCJun 2, 09:50 UTC10m
2026-06-02 CTV453 - Jun 2, 08:20 UTCJun 2, 08:35 UTC15m
2026-06-02 CTV973 - Jun 2, 02:50 UTCJun 2, 03:00 UTC10m
2026-06-02 CTV972 - Jun 2, 00:35 UTCJun 2, 00:50 UTC15m
2026-06-01 CTV480 CGK → BDJ Jun 1, 00:15 UTCJun 1, 00:25 UTC10m
2026-05-31 CTV9684 CGK → DPS May 31, 12:55 UTCMay 31, 17:00 UTC4h 5m
2026-05-31 CTV993 TKG → CGK May 31, 11:25 UTCMay 31, 11:50 UTC25m
2026-05-31 CTV992 CGK → TKG May 31, 09:55 UTCMay 31, 10:10 UTC15m
2026-05-31 CTV997 - May 31, 08:35 UTCMay 31, 08:50 UTC15m
2026-05-27 CTV480 CGK → BDJ May 27, 00:10 UTCMay 27, 00:19 UTC10m
2026-05-26 CTV412 CGK → PNK May 26, 10:14 UTCMay 26, 10:25 UTC10m
2026-05-26 CTV997 - May 26, 08:19 UTCMay 26, 08:39 UTC20m
2026-05-26 CTV996 - May 26, 06:20 UTCMay 26, 06:34 UTC15m
2026-05-26 CTV933 PKU → CGK May 26, 03:35 UTCMay 26, 04:20 UTC45m
2026-05-26 CTV932 CGK → PKU May 26, 01:10 UTCMay 26, 02:15 UTC1h 5m
2026-05-25 CTV728 CGK → SUB May 25, 14:20 UTCMay 25, 15:00 UTC40m
2026-05-25 CTV978 CGK → KNO May 25, 07:40 UTCMay 25, 11:50 UTC4h 10m
2026-05-25 CTV640 CGK → LOP May 25, 01:55 UTCMay 25, 02:30 UTC35m
2026-05-24 CTV937 PKU → CGK May 24, 23:20 UTCMay 24, 23:46 UTC26m
2026-05-24 CTV938 CGK → PKU May 24, 11:00 UTCMay 24, 12:05 UTC1h 5m
2026-05-24 CTV967 DJB → CGK May 24, 08:55 UTCMay 24, 09:15 UTC20m
2026-05-24 CTV966 CGK → DJB May 24, 07:05 UTCMay 24, 07:55 UTC50m
2026-05-24 CTV438 CGK → BPN May 24, 01:05 UTCMay 24, 01:20 UTC15m
2026-05-23 CTV753 MLG → CGK May 23, 02:35 UTCMay 23, 06:00 UTC3h 25m
2026-05-23 CTV981 PLM → CGK May 23, 01:25 UTCMay 23, 01:35 UTC10m
2026-05-22 CTV980 CGK → PLM May 22, 23:15 UTCMay 22, 23:35 UTC20m
2026-05-22 CTV979 KNO → CGK May 22, 08:00 UTCMay 22, 12:10 UTC4h 10m
2026-05-22 CTV913 KNO → CGK May 22, 04:45 UTCMay 22, 05:50 UTC1h 5m
2026-05-22 CTV912 CGK → KNO May 22, 01:20 UTCMay 22, 02:50 UTC1h 30m
2026-05-21 CTV988 BTH → PLM May 21, 12:35 UTCMay 21, 12:50 UTC15m
2026-05-21 CTV923 KNO → BTH May 21, 10:30 UTCMay 21, 11:05 UTC35m
2026-05-21 CTV922 BTH → KNO May 21, 08:20 UTCMay 21, 09:00 UTC40m
2026-05-21 CTV935 PKU → BTH May 21, 06:40 UTCMay 21, 06:55 UTC15m
2026-05-21 CTV925 KNO → BTH May 21, 03:00 UTCMay 21, 03:40 UTC40m
2026-05-21 CTV924 BTH → KNO May 21, 01:05 UTCMay 21, 01:40 UTC35m
2026-05-20 CTV989 PLM → BTH May 20, 23:10 UTCMay 20, 23:30 UTC20m
2026-05-20 CTV986 CGK → PLM May 20, 12:15 UTCMay 20, 12:30 UTC15m
2026-05-20 CTV975 TNJ → CGK May 20, 09:40 UTCMay 20, 09:55 UTC15m
2026-05-20 CTV974 CGK → TNJ May 20, 07:05 UTCMay 20, 08:00 UTC55m
2026-05-20 CTV640 CGK → LOP May 20, 01:55 UTCMay 20, 02:40 UTC45m
2026-05-20 CTV937 PKU → CGK May 20, 00:50 UTCMay 20, 01:05 UTC15m
2026-05-19 CTV937 PKU → CGK May 19, 23:35 UTCMay 20, 00:15 UTC40m
2026-05-19 CTV938 CGK → PKU May 19, 10:50 UTCMay 19, 12:00 UTC1h 10m
2026-05-19 CTV967 DJB → CGK May 19, 09:40 UTCMay 19, 09:50 UTC10m
2026-05-19 CTV967 DJB → CGK May 19, 08:55 UTCMay 19, 09:05 UTC10m
2026-05-19 CTV966 CGK → DJB May 19, 06:50 UTCMay 19, 07:40 UTC50m
2026-05-19 CTV933 PKU → CGK May 19, 03:40 UTCMay 19, 05:00 UTC1h 20m
2026-05-19 CTV932 CGK → PKU May 19, 01:10 UTCMay 19, 02:20 UTC1h 10m

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

Mode-S 8A04AB frequently asked

What is Mode-S code 8A04AB?
8A04AB is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GQH.
Where is Mode-S 8A04AB registered?
Mode-S code 8A04AB is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A04AB broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A04AB, octal 42402253, decimal 9,045,163.
What flights does 8A04AB operate?
Mode-S 8A04AB has broadcast 20 distinct callsigns, including CTV988, CTV935, CTV923, CTV922, CTV989.