Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

8A0508

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GQJ · AIRBUS A-320

Hex
8A0508
Octal
42402410
Decimal
9,045,256
Country
ID
Tail
PK-GQJ
Type
A320
No current signal · last broadcast 1d ago
Flights observed
387
Distinct callsigns
20
Country
ID
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 8A0508.

Country allocation

The ICAO 24-bit address 8A0508 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 - 10 2026-07-09
CTV959 - 9 2026-07-05
CTV971 - 7 2026-07-05
CTV958 - 7 2026-07-03
CTV937 Escuela De Pilotos Are Aviacion 7 2026-06-07
CTV913 - 7 2026-06-28
CTV975 - 6 2026-06-27
CTV945 Escuela De Pilotos Are Aviacion 6 2026-06-30
CTV944 - 6 2026-06-30
CTV793 - 6 2026-06-26
CTV792 - 6 2026-06-26
CTV527 - 6 2026-07-02
CTV513 Escuela De Pilotos Are Aviacion 6 2026-06-10
CTV987 - 5 2026-06-27
CTV986 - 5 2026-06-27
CTV977 - 5 2026-06-25
CTV974 - 5 2026-06-27
CTV967 Escuela De Pilotos Are Aviacion 5 2026-06-07
CTV966 Escuela De Pilotos Are Aviacion 5 2026-06-07
CTV947 Escuela De Pilotos Are Aviacion 5 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CTV172 - Jul 13, 13:15 UTCJul 13, 13:50 UTC35m
2026-07-13 CTV173 - Jul 13, 12:20 UTCJul 13, 12:30 UTC10m
2026-07-12 CTV726 - Jul 12, 12:05 UTCJul 12, 12:45 UTC40m
2026-07-12 CTV969 - Jul 12, 10:40 UTCJul 12, 10:55 UTC15m
2026-07-12 CTV969 - Jul 12, 09:40 UTCJul 12, 10:05 UTC25m
2026-07-12 CTV968 - Jul 12, 07:25 UTCJul 12, 08:25 UTC1h 0m
2026-07-12 CTV753 - Jul 12, 05:45 UTCJul 12, 06:01 UTC15m
2026-07-12 CTV752 - Jul 12, 02:50 UTCJul 12, 03:35 UTC45m
2026-07-12 CTV981 - Jul 12, 01:20 UTCJul 12, 01:35 UTC15m
2026-07-11 CTV980 - Jul 11, 23:15 UTCJul 11, 23:30 UTC15m
2026-07-11 CTV503 - Jul 11, 12:15 UTCJul 11, 13:55 UTC1h 40m
2026-07-11 CTV502 - Jul 11, 09:00 UTCJul 11, 10:45 UTC1h 45m
2026-07-11 CTV686 - Jul 11, 03:15 UTCJul 11, 07:45 UTC4h 30m
2026-07-10 CTV210 - Jul 10, 18:50 UTCJul 10, 19:20 UTC30m
2026-07-10 CTV955 - Jul 10, 12:50 UTCJul 10, 13:25 UTC35m
2026-07-10 CTV954 - Jul 10, 10:15 UTCJul 10, 11:20 UTC1h 5m
2026-07-10 CTV681 - Jul 10, 08:50 UTCJul 10, 09:05 UTC15m
2026-07-09 CTV680 - Jul 9, 21:55 UTCJul 9, 22:40 UTC45m
2026-07-09 CTV662 - Jul 9, 09:50 UTCJul 9, 14:15 UTC4h 25m
2026-07-09 CTV907 - Jul 9, 08:20 UTCJul 9, 08:30 UTC10m
2026-07-09 CTV906 - Jul 9, 05:50 UTCJul 9, 06:10 UTC20m
2026-07-09 CTV763 - Jul 9, 03:00 UTCJul 9, 03:55 UTC55m
2026-07-09 CTV762 - Jul 9, 01:15 UTCJul 9, 01:50 UTC35m
2026-07-08 CTV911 - Jul 8, 22:30 UTCJul 9, 00:20 UTC1h 50m
2026-07-08 CTV882 - Jul 8, 13:15 UTCJul 8, 14:50 UTC1h 35m
2026-07-08 CTV965 - Jul 8, 10:55 UTCJul 8, 11:55 UTC1h 0m
2026-07-08 CT964 - Jul 8, 08:55 UTCJul 8, 09:55 UTC1h 0m
2026-07-08 CTV447 - Jul 8, 07:20 UTCJul 8, 07:35 UTC15m
2026-07-08 CTV438 - Jul 8, 02:50 UTCJul 8, 03:00 UTC10m
2026-07-08 CTV981 - Jul 8, 01:30 UTCJul 8, 01:45 UTC15m
2026-07-07 CTV980 - Jul 7, 23:15 UTCJul 7, 23:30 UTC15m
2026-07-07 CTV999 - Jul 7, 12:55 UTCJul 7, 13:25 UTC30m
2026-07-07 CTV998 - Jul 7, 11:20 UTCJul 7, 11:40 UTC20m
2026-07-07 CTV346 - Jul 7, 01:15 UTCJul 7, 10:20 UTC9h 5m
2026-07-06 CTV728 CGK → SUB Jul 6, 14:45 UTCJul 6, 15:25 UTC40m
2026-07-06 CTV493 - Jul 6, 11:45 UTCJul 6, 12:00 UTC15m
2026-07-06 CTV437 - Jul 6, 06:40 UTCJul 6, 06:55 UTC15m
2026-07-05 CTV436 - Jul 5, 22:20 UTCJul 5, 22:30 UTC10m
2026-07-05 CTV959 - Jul 5, 08:45 UTCJul 5, 13:05 UTC4h 20m
2026-07-05 CTV971 - Jul 5, 07:15 UTCJul 5, 07:25 UTC10m
2026-07-05 CTV973 - Jul 5, 03:20 UTCJul 5, 03:35 UTC15m
2026-07-04 CTV725 - Jul 4, 23:20 UTCJul 4, 23:50 UTC30m
2026-07-03 CTV728 CGK → SUB Jul 3, 14:40 UTCJul 3, 15:20 UTC40m
2026-07-03 CTV959 - Jul 3, 10:15 UTCJul 3, 11:40 UTC1h 25m
2026-07-03 CTV958 - Jul 3, 07:50 UTCJul 3, 08:50 UTC1h 0m
2026-07-03 CTV971 - Jul 3, 05:55 UTCJul 3, 06:15 UTC20m
2026-07-03 CTV331 - Jul 3, 02:15 UTCJul 3, 02:30 UTC15m
2026-07-02 CTV330 - Jul 2, 20:55 UTCJul 2, 21:05 UTC10m
2026-07-02 CTV527 - Jul 2, 13:30 UTCJul 2, 14:50 UTC1h 20m
2026-07-02 CTV526 - Jul 2, 10:35 UTCJul 2, 11:55 UTC1h 20m

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

Mode-S 8A0508 frequently asked

What is Mode-S code 8A0508?
8A0508 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GQJ.
Where is Mode-S 8A0508 registered?
Mode-S code 8A0508 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0508 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0508, octal 42402410, decimal 9,045,256.
What flights does 8A0508 operate?
Mode-S 8A0508 has broadcast 20 distinct callsigns, including CTV680, CTV959, CTV971, CTV958, CTV937.