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sensors Mode-S transponder

8A04A5

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GQA · AIRBUS A-320

Hex
8A04A5
Octal
42402245
Decimal
9,045,157
Country
ID
Tail
PK-GQA
Type
A320
Broadcasting now · callsign CTV176 · 35,000 ft
Flights observed
439
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 13:55 UTC

Current position

8A04A5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 8A04A5 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
CTV503 Escuela De Pilotos Are Aviacion 17 2026-07-26
CTV945 Escuela De Pilotos Are Aviacion 10 2026-06-23
CTV502 Escuela De Pilotos Are Aviacion 10 2026-07-26
CTV196 Escuela De Pilotos Are Aviacion 9 2026-04-26
CTV032 Escuela De Pilotos Are Aviacion 9 2026-04-27
CTV975 - 8 2026-07-17
CTV933 - 8 2026-07-05
CTV680 - 8 2026-07-11
CTV944 - 7 2026-06-23
CTV177 Escuela De Pilotos Are Aviacion 7 2026-04-27
CTV172 Escuela De Pilotos Are Aviacion 7 2026-06-26
CTV033 Escuela De Pilotos Are Aviacion 7 2026-04-27
CTV974 - 6 2026-07-17
CTV932 - 6 2026-07-05
CTV194 Escuela De Pilotos Are Aviacion 6 2026-04-26
CTV180 Escuela De Pilotos Are Aviacion 6 2026-04-26
CTV011 Escuela De Pilotos Are Aviacion 6 2026-04-20
CTV010 Escuela De Pilotos Are Aviacion 6 2026-04-28
CTV686 Escuela De Pilotos Are Aviacion 5 2026-07-19
CTV523 Escuela De Pilotos Are Aviacion 5 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CTV503 KUL → CGK Jul 26, 12:15 UTCJul 26, 13:55 UTC1h 40m
2026-07-26 CTV502 CGK → KUL Jul 26, 09:00 UTCJul 26, 10:55 UTC1h 55m
2026-07-26 CTV791 SRG → CGK Jul 26, 06:50 UTCJul 26, 07:25 UTC35m
2026-07-26 CTV790 CGK → SRG Jul 26, 04:40 UTCJul 26, 05:05 UTC25m
2026-07-26 CTV841 BTH → CGK Jul 26, 02:20 UTCJul 26, 03:40 UTC1h 20m
2026-07-25 CTV840 CGK → BTH Jul 25, 23:50 UTCJul 26, 00:50 UTC1h 0m
2026-07-20 CTV513 - Jul 20, 10:10 UTCJul 20, 13:20 UTC3h 10m
2026-07-20 CTV512 CGK → DMK Jul 20, 06:35 UTCJul 20, 08:40 UTC2h 5m
2026-07-20 CTV512 CGK → DMK Jul 20, 05:30 UTCJul 20, 05:45 UTC15m
2026-07-20 CTV523 SIN → CGK Jul 20, 03:30 UTCJul 20, 03:50 UTC20m
2026-07-20 CTV523 SIN → CGK Jul 20, 02:30 UTCJul 20, 02:55 UTC25m
2026-07-19 CTV522 CGK → SIN Jul 19, 23:35 UTCJul 20, 00:35 UTC1h 0m
2026-07-19 CTV503 - Jul 19, 14:00 UTCJul 19, 14:15 UTC15m
2026-07-19 CTV503 - Jul 19, 12:35 UTCJul 19, 13:25 UTC50m
2026-07-19 CTV502 - Jul 19, 09:20 UTCJul 19, 11:05 UTC1h 45m
2026-07-19 CTV686 CGK → DPS Jul 19, 03:10 UTCJul 19, 07:45 UTC4h 35m
2026-07-18 CTV211 AMQ → CGK Jul 18, 18:50 UTCJul 19, 02:00 UTC7h 10m
2026-07-18 CTV955 - Jul 18, 13:50 UTCJul 18, 14:05 UTC15m
2026-07-18 CTV955 - Jul 18, 12:40 UTCJul 18, 13:15 UTC35m
2026-07-18 CTV954 - Jul 18, 10:15 UTCJul 18, 11:20 UTC1h 5m
2026-07-18 CTV997 - Jul 18, 08:55 UTCJul 18, 09:25 UTC30m
2026-07-18 CTV996 - Jul 18, 07:25 UTCJul 18, 07:45 UTC20m
2026-07-18 CTV640 CGK → LOP Jul 18, 02:05 UTCJul 18, 06:15 UTC4h 11m
2026-07-17 CTV937 - Jul 17, 23:25 UTCJul 18, 00:50 UTC1h 25m
2026-07-17 CTV938 - Jul 17, 11:30 UTCJul 17, 12:40 UTC1h 10m
2026-07-17 CTV975 - Jul 17, 10:20 UTCJul 17, 10:35 UTC15m
2026-07-17 CTV975 - Jul 17, 09:30 UTCJul 17, 09:45 UTC15m
2026-07-17 CTV974 - Jul 17, 07:00 UTCJul 17, 08:00 UTC1h 0m
2026-07-17 CTV767 - Jul 17, 04:59 UTCJul 17, 05:50 UTC50m
2026-07-17 CTV766 - Jul 17, 03:05 UTCJul 17, 03:55 UTC50m
2026-07-17 CTV775 - Jul 17, 00:50 UTCJul 17, 01:45 UTC55m
2026-07-16 CTV776 - Jul 16, 11:50 UTCJul 16, 12:09 UTC20m
2026-07-16 CTV793 - Jul 16, 10:04 UTCJul 16, 10:35 UTC30m
2026-07-16 CTV792 - Jul 16, 08:10 UTCJul 16, 08:35 UTC25m
2026-07-16 CTV717 - Jul 16, 06:45 UTCJul 16, 07:00 UTC15m
2026-07-16 CTV716 - Jul 16, 03:35 UTCJul 16, 04:25 UTC50m
2026-07-16 CTV941 - Jul 16, 01:05 UTCJul 16, 02:10 UTC1h 5m
2026-07-15 CTV940 - Jul 15, 22:25 UTCJul 15, 23:25 UTC1h 0m
2026-07-15 CTV493 - Jul 15, 11:45 UTCJul 15, 12:00 UTC15m
2026-07-15 CTV437 - Jul 15, 06:40 UTCJul 15, 06:55 UTC15m
2026-07-14 CTV503 - Jul 14, 13:55 UTCJul 14, 14:10 UTC15m
2026-07-14 CTV503 - Jul 14, 12:25 UTCJul 14, 13:20 UTC55m
2026-07-14 CTV502 - Jul 14, 09:05 UTCJul 14, 10:50 UTC1h 45m
2026-07-14 CTV791 - Jul 14, 07:00 UTCJul 14, 07:20 UTC20m
2026-07-14 CTV790 - Jul 14, 04:40 UTCJul 14, 05:05 UTC25m
2026-07-14 CTV841 - Jul 14, 02:20 UTCJul 14, 03:25 UTC1h 5m
2026-07-14 CTV840 - Jul 14, 00:00 UTCJul 14, 01:00 UTC1h 0m
2026-07-13 CTV503 - Jul 13, 13:45 UTCJul 13, 14:05 UTC20m
2026-07-13 CTV503 - Jul 13, 12:15 UTCJul 13, 13:00 UTC45m
2026-07-13 CTV502 - Jul 13, 09:15 UTCJul 13, 11:00 UTC1h 45m

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

Mode-S 8A04A5 frequently asked

What is Mode-S code 8A04A5?
8A04A5 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GQA.
Where is Mode-S 8A04A5 registered?
Mode-S code 8A04A5 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A04A5 broadcasting right now?
Yes. Mode-S 8A04A5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A04A5, octal 42402245, decimal 9,045,157.
What flights does 8A04A5 operate?
Mode-S 8A04A5 has broadcast 20 distinct callsigns, including CTV503, CTV945, CTV502, CTV196, CTV032.