Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

8A04A9

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GQF · AIRBUS A-320

Hex
8A04A9
Octal
42402251
Decimal
9,045,161
Country
ID
Tail
PK-GQF
Type
A320
No current signal · last broadcast Jul 26, 21:20 UTC
Flights observed
435
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 21:20 UTC

Last known position

Most recent position reported by Mode-S 8A04A9.

Country allocation

The ICAO 24-bit address 8A04A9 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
CTV527 Escuela De Pilotos Are Aviacion 19 2026-07-26
CTV680 - 15 2026-07-15
CTV681 - 14 2026-07-16
CTV503 Escuela De Pilotos Are Aviacion 11 2026-07-23
CTV526 Escuela De Pilotos Are Aviacion 10 2026-07-26
CTV969 Escuela De Pilotos Are Aviacion 9 2026-06-05
CTV841 Escuela De Pilotos Are Aviacion 9 2026-07-24
CTV967 - 7 2026-07-14
CTV945 Escuela De Pilotos Are Aviacion 7 2026-06-26
CTV792 Escuela De Pilotos Are Aviacion 6 2026-07-21
CTV776 Escuela De Pilotos Are Aviacion 6 2026-07-21
CTV502 Escuela De Pilotos Are Aviacion 6 2026-07-23
CTV436 - 6 2026-06-16
CTV991 - 5 2026-06-30
CTV990 - 5 2026-06-30
CTV968 Escuela De Pilotos Are Aviacion 5 2026-06-05
CTV955 - 5 2026-07-16
CTV939 - 5 2026-06-30
CTV938 Escuela De Pilotos Are Aviacion 5 2026-07-20
CTV936 Escuela De Pilotos Are Aviacion 5 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CTV330 CGK → KDI Jul 26, 20:55 UTCJul 26, 21:20 UTC25m
2026-07-26 CTV527 SIN → CGK Jul 26, 13:25 UTCJul 26, 14:40 UTC1h 15m
2026-07-26 CTV526 CGK → SIN Jul 26, 10:15 UTCJul 26, 11:30 UTC1h 15m
2026-07-26 CTV423 AAP → CGK Jul 26, 08:35 UTCJul 26, 08:50 UTC15m
2026-07-26 CTV953 PDG → CGK Jul 26, 02:50 UTCJul 26, 03:05 UTC15m
2026-07-26 CTV953 PDG → CGK Jul 26, 01:45 UTCJul 26, 02:20 UTC35m
2026-07-26 CTV952 CGK → PDG Jul 26, 00:10 UTCJul 26, 00:25 UTC15m
2026-07-25 CTV952 CGK → PDG Jul 25, 23:20 UTCJul 25, 23:30 UTC10m
2026-07-25 CTV481 BDJ → CGK Jul 25, 12:55 UTCJul 25, 13:10 UTC15m
2026-07-25 CTV737 SUB → CGK Jul 25, 08:05 UTCJul 25, 08:15 UTC10m
2026-07-25 CTV736 CGK → SUB Jul 25, 04:55 UTCJul 25, 05:20 UTC25m
2026-07-25 CTV762 CGK → SOC Jul 25, 01:10 UTCJul 25, 01:35 UTC25m
2026-07-24 CTV911 KNO → CGK Jul 24, 22:20 UTCJul 24, 23:25 UTC1h 5m
2026-07-24 CTV882 CGK → KNO Jul 24, 13:25 UTCJul 24, 15:05 UTC1h 40m
2026-07-24 CTV965 DJB → CGK Jul 24, 11:45 UTCJul 24, 12:00 UTC15m
2026-07-24 CTV965 DJB → CGK Jul 24, 10:50 UTCJul 24, 11:10 UTC20m
2026-07-24 CTV964 CGK → DJB Jul 24, 08:50 UTCJul 24, 09:50 UTC1h 0m
2026-07-24 CTV9799 SRG → CGK Jul 24, 07:10 UTCJul 24, 07:25 UTC15m
2026-07-24 CTV9798 CGK → SUB Jul 24, 04:45 UTCJul 24, 05:05 UTC20m
2026-07-24 CTV841 BTH → CGK Jul 24, 03:35 UTCJul 24, 03:50 UTC15m
2026-07-24 CTV841 BTH → CGK Jul 24, 02:40 UTCJul 24, 02:55 UTC15m
2026-07-24 CTV840 CGK → BTH Jul 24, 00:00 UTCJul 24, 01:00 UTC1h 0m
2026-07-23 CTV503 KUL → CGK Jul 23, 13:50 UTCJul 23, 14:05 UTC15m
2026-07-23 CTV503 KUL → CGK Jul 23, 12:25 UTCJul 23, 13:10 UTC45m
2026-07-23 CTV502 CGK → KUL Jul 23, 09:15 UTCJul 23, 11:00 UTC1h 45m
2026-07-23 CTV791 SRG → CGK Jul 23, 07:10 UTCJul 23, 07:20 UTC10m
2026-07-23 CTV790 CGK → SRG Jul 23, 04:35 UTCJul 23, 04:50 UTC15m
2026-07-23 CTV841 BTH → CGK Jul 23, 02:20 UTCJul 23, 02:35 UTC15m
2026-07-22 CTV840 CGK → BTH Jul 22, 23:50 UTCJul 23, 00:45 UTC55m
2026-07-22 CTV915 - Jul 22, 15:30 UTCJul 22, 16:40 UTC1h 10m
2026-07-22 CTV914 CGK → KNO Jul 22, 12:25 UTCJul 22, 14:05 UTC1h 40m
2026-07-22 CTV970 - Jul 22, 03:30 UTCJul 22, 03:45 UTC15m
2026-07-21 CTV776 CGK → YIA Jul 21, 11:35 UTCJul 21, 11:55 UTC20m
2026-07-21 CTV793 SRG → CGK Jul 21, 10:15 UTCJul 21, 10:25 UTC10m
2026-07-21 CTV792 CGK → SRG Jul 21, 08:00 UTCJul 21, 08:25 UTC25m
2026-07-21 CTV641 LOP → CGK Jul 21, 06:10 UTCJul 21, 06:20 UTC10m
2026-07-21 CTV640 CGK → LOP Jul 21, 02:10 UTCJul 21, 02:45 UTC35m
2026-07-20 CTV937 - Jul 20, 23:25 UTCJul 21, 00:45 UTC1h 19m
2026-07-20 CTV938 CGK → PKU Jul 20, 12:10 UTCJul 20, 12:45 UTC35m
2026-07-20 CTV938 CGK → PKU Jul 20, 11:30 UTCJul 20, 11:40 UTC10m
2026-07-20 CTV975 TNJ → CGK Jul 20, 10:20 UTCJul 20, 10:30 UTC10m
2026-07-20 CTV975 TNJ → CGK Jul 20, 09:25 UTCJul 20, 09:40 UTC15m
2026-07-20 CTV974 CGK → TNJ Jul 20, 06:55 UTCJul 20, 07:10 UTC15m
2026-07-20 CTV767 - Jul 20, 05:35 UTCJul 20, 05:45 UTC10m
2026-07-20 CTV766 - Jul 20, 03:05 UTCJul 20, 03:25 UTC20m
2026-07-19 CTV776 - Jul 19, 11:50 UTCJul 20, 01:45 UTC13h 55m
2026-07-19 CTV792 CGK → SRG Jul 19, 08:05 UTCJul 19, 10:35 UTC2h 30m
2026-07-19 CTV717 - Jul 19, 06:45 UTCJul 19, 06:55 UTC10m
2026-07-19 CTV716 - Jul 19, 03:35 UTCJul 19, 04:15 UTC40m
2026-07-19 CTV941 - Jul 19, 01:05 UTCJul 19, 02:10 UTC1h 5m

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

Mode-S 8A04A9 frequently asked

What is Mode-S code 8A04A9?
8A04A9 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GQF.
Where is Mode-S 8A04A9 registered?
Mode-S code 8A04A9 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A04A9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A04A9, octal 42402251, decimal 9,045,161.
What flights does 8A04A9 operate?
Mode-S 8A04A9 has broadcast 20 distinct callsigns, including CTV527, CTV680, CTV681, CTV503, CTV526.