Apparatus

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sensors Mode-S transponder

8A04AA

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GQG · AIRBUS A-320

Hex
8A04AA
Octal
42402252
Decimal
9,045,162
Country
ID
Tail
PK-GQG
Type
A320
Broadcasting now · callsign CTV972 · 24,000 ft
Flights observed
151
Distinct callsigns
20
Country
ID
Last broadcast
18h ago

Current position

8A04AA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 8A04AA 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
CTV945 Escuela De Pilotos Are Aviacion 5 2026-05-21
CTV919 Escuela De Pilotos Are Aviacion 5 2026-04-29
CTV917 Escuela De Pilotos Are Aviacion 5 2026-05-06
CTV680 Escuela De Pilotos Are Aviacion 5 2026-05-27
CTV944 Escuela De Pilotos Are Aviacion 4 2026-05-21
CTV918 Escuela De Pilotos Are Aviacion 4 2026-05-06
CTV916 Escuela De Pilotos Are Aviacion 4 2026-04-29
CTV972 - 3 2026-05-27
CTV971 - 3 2026-05-18
CTV251 Escuela De Pilotos Are Aviacion 3 2026-05-19
CTV250 Escuela De Pilotos Are Aviacion 3 2026-05-18
CTV033 Escuela De Pilotos Are Aviacion 3 2026-05-13
CTV032 Escuela De Pilotos Are Aviacion 3 2026-05-13
CTV983 Escuela De Pilotos Are Aviacion 2 2026-05-27
CTV982 Escuela De Pilotos Are Aviacion 2 2026-05-27
CTV979 Escuela De Pilotos Are Aviacion 2 2026-05-23
CTV977 Escuela De Pilotos Are Aviacion 2 2026-05-05
CTV973 - 2 2026-05-27
CTV952 Escuela De Pilotos Are Aviacion 2 2026-04-28
CTV9447 Escuela De Pilotos Are Aviacion 2 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CTV446 CGK → BPN May 29, 07:10 UTCMay 29, 07:20 UTC10m
2026-05-29 CTV640 CGK → LOP May 29, 02:05 UTCMay 29, 02:50 UTC45m
2026-05-28 CTV937 PKU → CGK May 28, 23:25 UTCMay 29, 00:50 UTC1h 25m
2026-05-28 CTV938 CGK → PKU May 28, 10:50 UTCMay 28, 11:55 UTC1h 5m
2026-05-27 CTV680 CGK → DPS May 27, 22:10 UTCMay 28, 08:30 UTC10h 20m
2026-05-27 CTV983 PLM → CGK May 27, 11:50 UTCMay 27, 12:05 UTC15m
2026-05-27 CTV982 CGK → PLM May 27, 09:35 UTCMay 27, 09:50 UTC15m
2026-05-27 CTV453 - May 27, 08:15 UTCMay 27, 08:30 UTC15m
2026-05-27 CTV973 - May 27, 03:04 UTCMay 27, 03:20 UTC15m
2026-05-27 CTV972 - May 27, 00:49 UTCMay 27, 00:59 UTC10m
2026-05-23 CTV728 CGK → SUB May 23, 14:25 UTCMay 23, 15:05 UTC40m
2026-05-23 CTV979 KNO → CGK May 23, 11:10 UTCMay 23, 13:00 UTC1h 50m
2026-05-23 CTV978 CGK → KNO May 23, 08:15 UTCMay 23, 09:40 UTC1h 25m
2026-05-23 CTV716 CGK → SUB May 23, 03:25 UTCMay 23, 07:05 UTC3h 40m
2026-05-23 CTV941 BTH → CGK May 23, 01:00 UTCMay 23, 02:20 UTC1h 20m
2026-05-22 CTV940 CGK → BTH May 22, 22:35 UTCMay 22, 23:30 UTC55m
2026-05-22 CTV955 PDG → CGK May 22, 10:35 UTCMay 22, 14:00 UTC3h 25m
2026-05-22 CTV954 CGK → PDG May 22, 09:40 UTCMay 22, 09:55 UTC15m
2026-05-21 CTV212 CGK → UPG May 21, 22:15 UTCMay 21, 22:25 UTC10m
2026-05-21 CTV945 BTH → CGK May 21, 12:15 UTCMay 21, 13:15 UTC1h 0m
2026-05-21 CTV944 CGK → BTH May 21, 09:45 UTCMay 21, 10:45 UTC1h 0m
2026-05-20 CTV680 CGK → DPS May 20, 21:55 UTCMay 21, 08:40 UTC10h 45m
2026-05-20 CTV945 BTH → CGK May 20, 12:15 UTCMay 20, 12:25 UTC10m
2026-05-20 CTV944 CGK → BTH May 20, 09:40 UTCMay 20, 10:40 UTC1h 0m
2026-05-19 CTV680 CGK → DPS May 19, 22:00 UTCMay 19, 22:45 UTC45m
2026-05-19 CTV997 - May 19, 08:25 UTCMay 19, 09:00 UTC35m
2026-05-19 CTV996 - May 19, 06:20 UTCMay 19, 06:40 UTC20m
2026-05-19 CTV251 UPG → CGK May 19, 04:55 UTCMay 19, 05:10 UTC15m
2026-05-18 CTV250 CGK → UPG May 18, 14:35 UTCMay 18, 14:45 UTC10m
2026-05-18 CTV979 KNO → CGK May 18, 07:25 UTCMay 18, 12:45 UTC5h 20m
2026-05-18 CTV971 - May 18, 05:55 UTCMay 18, 06:10 UTC15m
2026-05-17 CTV210 CGK → AMQ May 17, 18:55 UTCMay 17, 19:20 UTC25m
2026-05-17 CTV688 CGK → DPS May 17, 08:40 UTCMay 17, 12:55 UTC4h 15m
2026-05-17 CTV686 CGK → DPS May 17, 03:10 UTCMay 17, 07:30 UTC4h 20m
2026-05-17 CTV961 DJB → CGK May 17, 01:10 UTCMay 17, 01:25 UTC15m
2026-05-16 CTV960 - May 16, 23:15 UTCMay 17, 00:05 UTC50m
2026-05-16 CTV527 SIN → CGK May 16, 13:15 UTCMay 16, 14:35 UTC1h 20m
2026-05-16 CTV526 CGK → SIN May 16, 10:16 UTCMay 16, 11:25 UTC1h 10m
2026-05-15 CTV983 PLM → CGK May 15, 11:50 UTCMay 15, 12:05 UTC15m
2026-05-15 CTV982 CGK → PLM May 15, 09:35 UTCMay 15, 09:45 UTC10m
2026-05-15 CTV453 - May 15, 08:20 UTCMay 15, 08:35 UTC15m
2026-05-15 CTV452 - May 15, 04:50 UTCMay 15, 05:00 UTC10m
2026-05-15 CTV841 BTH → CGK May 15, 02:15 UTCMay 15, 02:30 UTC15m
2026-05-14 CTV840 CGK → BTH May 14, 23:55 UTCMay 15, 00:50 UTC55m
2026-05-14 CTV181 PDG → HLP May 14, 08:10 UTCMay 14, 08:45 UTC35m
2026-05-14 CTV180 HLP → PDG May 14, 05:40 UTCMay 14, 06:35 UTC55m
2026-05-14 CTV9192 HLP → DPS May 14, 00:00 UTCMay 14, 00:40 UTC40m
2026-05-13 CTV033 PKU → HLP May 13, 12:40 UTCMay 13, 13:20 UTC40m
2026-05-13 CTV032 HLP → PKU May 13, 10:15 UTCMay 13, 11:20 UTC1h 5m
2026-05-13 CTV181 PDG → HLP May 13, 06:50 UTCMay 13, 07:30 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-GQG page for operator, model, and routing details .

Mode-S 8A04AA frequently asked

What is Mode-S code 8A04AA?
8A04AA is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GQG.
Where is Mode-S 8A04AA registered?
Mode-S code 8A04AA is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A04AA broadcasting right now?
Yes. Mode-S 8A04AA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A04AA, octal 42402252, decimal 9,045,162.
What flights does 8A04AA operate?
Mode-S 8A04AA has broadcast 20 distinct callsigns, including CTV945, CTV919, CTV917, CTV680, CTV944.