Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

8A05C4

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GQM · AIRBUS A-320

Hex
8A05C4
Octal
42402704
Decimal
9,045,444
Country
ID
Tail
PK-GQM
Type
A320
No current signal · last broadcast Jul 26, 17:10 UTC
Flights observed
434
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 17:10 UTC

Last known position

Most recent position reported by Mode-S 8A05C4.

Country allocation

The ICAO 24-bit address 8A05C4 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
CTV680 Escuela De Pilotos Are Aviacion 9 2026-07-25
CTV945 - 8 2026-07-11
CTV988 - 7 2026-07-16
CTV944 - 7 2026-07-11
CTV935 - 7 2026-07-16
CTV934 - 7 2026-07-16
CTV925 - 7 2026-07-16
CTV924 - 7 2026-07-16
CTV922 - 7 2026-07-16
CTV989 - 6 2026-07-15
CTV961 Escuela De Pilotos Are Aviacion 6 2026-06-02
CTV923 - 6 2026-07-15
CTV718 Escuela De Pilotos Are Aviacion 6 2026-07-23
CTV686 Escuela De Pilotos Are Aviacion 6 2026-06-02
CTV493 Escuela De Pilotos Are Aviacion 6 2026-07-20
CTV437 Escuela De Pilotos Are Aviacion 6 2026-07-20
CTV181 - 6 2026-06-16
CTV975 Escuela De Pilotos Are Aviacion 5 2026-07-23
CTV960 - 5 2026-06-01
CTV959 - 5 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CTV915 KNO → CGK Jul 26, 15:20 UTCJul 26, 17:10 UTC1h 50m
2026-07-26 CTV914 CGK → KNO Jul 26, 12:20 UTCJul 26, 13:55 UTC1h 35m
2026-07-25 CTV680 CGK → DPS Jul 25, 21:55 UTCJul 26, 10:55 UTC13h 1m
2026-07-25 CTV427 UPG → CGK Jul 25, 15:10 UTCJul 25, 15:35 UTC25m
2026-07-25 CTV426 CGK → UPG Jul 25, 10:25 UTCJul 25, 10:50 UTC25m
2026-07-25 CTV423 AAP → CGK Jul 25, 08:40 UTCJul 25, 08:55 UTC15m
2026-07-25 CTV422 CGK → AAP Jul 25, 04:20 UTCJul 25, 04:30 UTC10m
2026-07-24 CTV330 CGK → KDI Jul 24, 20:50 UTCJul 25, 02:35 UTC5h 45m
2026-07-24 CTV915 KNO → CGK Jul 24, 15:30 UTCJul 24, 16:30 UTC1h 0m
2026-07-24 CTV914 CGK → KNO Jul 24, 12:30 UTCJul 24, 14:15 UTC1h 45m
2026-07-24 CTV415 PNK → CGK Jul 24, 11:00 UTCJul 24, 11:15 UTC15m
2026-07-24 CTV414 CGK → PNK Jul 24, 07:45 UTCJul 24, 07:55 UTC10m
2026-07-24 CTV640 CGK → LOP Jul 24, 02:10 UTCJul 24, 06:25 UTC4h 15m
2026-07-24 CTV937 PKU → CGK Jul 24, 00:35 UTCJul 24, 00:50 UTC15m
2026-07-23 CTV937 PKU → CGK Jul 23, 23:25 UTCJul 24, 00:05 UTC40m
2026-07-23 CTV938 CGK → PKU Jul 23, 11:30 UTCJul 23, 12:45 UTC1h 15m
2026-07-23 CTV975 TNJ → CGK Jul 23, 10:15 UTCJul 23, 10:30 UTC15m
2026-07-23 CTV974 CGK → TNJ Jul 23, 07:00 UTCJul 23, 09:40 UTC2h 40m
2026-07-23 CTV719 SUB → CGK Jul 23, 05:35 UTCJul 23, 05:50 UTC15m
2026-07-23 CTV718 CGK → SUB Jul 23, 02:25 UTCJul 23, 03:05 UTC40m
2026-07-23 CTV413 PNK → CGK Jul 23, 00:50 UTCJul 23, 01:05 UTC15m
2026-07-22 CTV412 CGK → PNK Jul 22, 11:20 UTCJul 22, 11:35 UTC15m
2026-07-22 CTV490 CGK → BDJ Jul 22, 02:20 UTCJul 22, 02:35 UTC15m
2026-07-22 CTV301 MDC → CGK Jul 22, 00:55 UTCJul 22, 01:10 UTC15m
2026-07-21 CTV662 CGK → DPS Jul 21, 09:50 UTCJul 21, 14:05 UTC4h 15m
2026-07-21 CTV907 BKS → CGK Jul 21, 08:05 UTCJul 21, 08:25 UTC20m
2026-07-21 CTV906 - Jul 21, 05:25 UTCJul 21, 05:50 UTC25m
2026-07-21 CTV763 - Jul 21, 03:10 UTCJul 21, 04:05 UTC55m
2026-07-21 CTV762 CGK → SOC Jul 21, 01:20 UTCJul 21, 02:00 UTC40m
2026-07-20 CTV911 KNO → CGK Jul 20, 22:25 UTCJul 21, 00:15 UTC1h 50m
2026-07-20 CTV882 - Jul 20, 13:10 UTCJul 20, 15:00 UTC1h 50m
2026-07-20 CTV493 BDJ → CGK Jul 20, 11:40 UTCJul 20, 12:00 UTC20m
2026-07-20 CTV437 BPN → CGK Jul 20, 06:40 UTCJul 20, 06:55 UTC15m
2026-07-19 CTV727 SUB → CGK Jul 19, 13:05 UTCJul 19, 13:20 UTC15m
2026-07-19 CTV174 CGK → SUB Jul 19, 10:00 UTCJul 19, 10:45 UTC45m
2026-07-18 CTV680 - Jul 18, 22:00 UTCJul 19, 08:50 UTC10h 50m
2026-07-18 CTV503 - Jul 18, 14:05 UTCJul 18, 14:25 UTC20m
2026-07-18 CTV503 - Jul 18, 12:40 UTCJul 18, 13:30 UTC50m
2026-07-18 CTV502 - Jul 18, 09:05 UTCJul 18, 10:55 UTC1h 50m
2026-07-18 CTV913 KNO → CGK Jul 18, 05:00 UTCJul 18, 07:00 UTC2h 0m
2026-07-18 CTV912 CGK → KNO Jul 18, 01:45 UTCJul 18, 03:35 UTC1h 51m
2026-07-17 CTV647 - Jul 17, 11:20 UTCJul 17, 11:30 UTC10m
2026-07-17 CTV646 - Jul 17, 07:25 UTCJul 17, 08:10 UTC45m
2026-07-17 CTV913 - Jul 17, 04:25 UTCJul 17, 06:20 UTC1h 55m
2026-07-17 CTV912 - Jul 17, 01:15 UTCJul 17, 02:50 UTC1h 35m
2026-07-16 CTV987 - Jul 16, 23:49 UTCJul 17, 00:04 UTC15m
2026-07-16 CTV988 - Jul 16, 12:14 UTCJul 16, 12:40 UTC25m
2026-07-16 BTV923 - Jul 16, 10:15 UTCJul 16, 10:59 UTC45m
2026-07-16 CTV922 - Jul 16, 08:15 UTCJul 16, 08:55 UTC40m
2026-07-16 CTV935 - Jul 16, 06:50 UTCJul 16, 07:00 UTC10m

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

Mode-S 8A05C4 frequently asked

What is Mode-S code 8A05C4?
8A05C4 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GQM.
Where is Mode-S 8A05C4 registered?
Mode-S code 8A05C4 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A05C4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A05C4, octal 42402704, decimal 9,045,444.
What flights does 8A05C4 operate?
Mode-S 8A05C4 has broadcast 20 distinct callsigns, including CTV680, CTV945, CTV988, CTV944, CTV935.