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sensors Mode-S transponder

8A0451

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GIF · BOEING 777-300ER

Hex
8A0451
Octal
42402121
Decimal
9,045,073
Country
ID
Tail
PK-GIF
Type
B77W
No current signal · last broadcast 2d ago
Flights observed
64
Distinct callsigns
18
Country
ID
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 8A0451.

Country allocation

The ICAO 24-bit address 8A0451 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 18 distinct

Callsign Airline Flights Last seen
GIA1 Garuda Indonesia 11 2026-05-29
GIA983 - 7 2026-07-11
GIA981 Garuda Indonesia 7 2026-05-21
GIA880 - 5 2026-06-25
GIA714 Garuda Indonesia 5 2026-06-08
GIA089 - 5 2026-06-30
GIA088 - 4 2026-06-28
GIA991 - 3 2026-07-16
GIA715 Garuda Indonesia 3 2026-06-09
GIA3791 Garuda Indonesia 3 2026-05-30
GIA990 - 2 2026-07-15
GIA982 Garuda Indonesia 2 2026-06-01
GIA961 Garuda Indonesia 2 2026-07-02
GIA980 Garuda Indonesia 1 2026-05-18
GIA960 Garuda Indonesia 1 2026-07-01
GIA881 Garuda Indonesia 1 2026-05-24
GIA418 Garuda Indonesia 1 2026-06-10
GIA410 Garuda Indonesia 1 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 GIA991 - Jul 16, 00:00 UTCJul 16, 00:10 UTC10m
2026-07-15 GIA991 - Jul 15, 09:50 UTCJul 15, 23:20 UTC13h 30m
2026-07-15 GIA990 - Jul 15, 06:20 UTCJul 15, 09:45 UTC3h 25m
2026-07-15 GIA990 - Jul 15, 02:35 UTCJul 15, 02:45 UTC10m
2026-07-11 GIA983 - Jul 11, 06:45 UTCJul 11, 07:00 UTC15m
2026-07-10 GIA983 - Jul 10, 13:15 UTCJul 11, 06:01 UTC16h 46m
2026-07-08 GIA991 - Jul 8, 06:05 UTCJul 8, 23:55 UTC17h 50m
2026-07-02 GIA961 MED → CGK Jul 2, 06:41 UTCJul 2, 06:55 UTC15m
2026-07-01 GIA961 MED → CGK Jul 1, 12:40 UTCJul 2, 06:00 UTC17h 20m
2026-07-01 GIA960 CGK → MED Jul 1, 08:55 UTCJul 1, 09:05 UTC10m
2026-06-30 GIA089 - Jun 30, 00:20 UTCJun 30, 00:35 UTC15m
2026-06-29 GIA089 - Jun 29, 11:04 UTCJun 29, 23:49 UTC12h 45m
2026-06-28 GIA088 - Jun 28, 15:24 UTCJun 29, 05:45 UTC14h 20m
2026-06-27 GIA089 - Jun 27, 10:40 UTCJun 28, 00:00 UTC13h 20m
2026-06-25 GIA088 - Jun 25, 15:40 UTCJun 26, 05:50 UTC14h 10m
2026-06-25 GIA880 - Jun 25, 02:14 UTCJun 25, 12:30 UTC10h 15m
2026-06-24 GIA880 - Jun 24, 11:05 UTCJun 24, 23:29 UTC12h 25m
2026-06-22 GIA089 - Jun 22, 10:34 UTCJun 22, 23:14 UTC12h 40m
2026-06-21 GIA088 - Jun 21, 15:25 UTCJun 22, 05:24 UTC14h 0m
2026-06-13 GIA089 AMS → CGK Jun 13, 10:35 UTCJun 14, 00:00 UTC13h 25m
2026-06-11 GIA088 - Jun 11, 15:55 UTCJun 12, 05:30 UTC13h 35m
2026-06-11 GIA410 CGK → DPS Jun 11, 07:50 UTCJun 11, 12:25 UTC4h 35m
2026-06-10 GIA418 CGK → DPS Jun 10, 11:00 UTCJun 10, 15:40 UTC4h 40m
2026-06-09 GIA715 SYD → DPS Jun 9, 00:20 UTCJun 9, 11:25 UTC11h 5m
2026-06-08 GIA714 DPS → SYD Jun 8, 20:30 UTCJun 8, 21:20 UTC50m
2026-06-08 GIA714 DPS → SYD Jun 8, 00:35 UTCJun 8, 21:20 UTC20h 45m
2026-06-07 GIA714 DPS → SYD Jun 7, 20:20 UTCJun 7, 20:55 UTC35m
2026-06-07 GIA715 SYD → DPS Jun 7, 00:44 UTCJun 7, 20:55 UTC20h 10m
2026-06-06 GIA714 DPS → SYD Jun 6, 20:30 UTCJun 6, 21:04 UTC35m
2026-06-06 GIA715 SYD → DPS Jun 6, 00:40 UTCJun 6, 21:04 UTC20h 25m
2026-06-05 GIA714 DPS → SYD Jun 5, 12:00 UTCJun 5, 20:50 UTC8h 50m
2026-06-03 GIA983 JED → CGK Jun 3, 07:25 UTCJun 3, 07:35 UTC10m
2026-06-02 GIA983 JED → CGK Jun 2, 13:25 UTCJun 3, 06:50 UTC17h 25m
2026-06-02 GIA983 JED → CGK Jun 2, 09:45 UTCJun 3, 06:50 UTC21h 5m
2026-06-01 GIA983 JED → CGK Jun 1, 13:45 UTCJun 2, 07:35 UTC17h 50m
2026-06-01 GIA982 CGK → JED Jun 1, 10:00 UTCJun 1, 10:10 UTC10m
2026-05-31 GIA983 JED → CGK May 31, 12:45 UTCJun 1, 07:55 UTC19h 10m
2026-05-31 GIA982 CGK → JED May 31, 09:05 UTCMay 31, 09:15 UTC10m
2026-05-30 GIA3791 CGK → HLP May 30, 04:50 UTCMay 30, 05:10 UTC20m
2026-05-29 GIA1 HLP → NAN May 29, 12:35 UTCMay 30, 02:06 UTC13h 31m
2026-05-25 GIA1 HLP → NAN May 25, 17:30 UTCMay 25, 21:49 UTC4h 19m
2026-05-25 GIA3791 CGK → HLP May 25, 13:15 UTCMay 25, 13:25 UTC10m
2026-05-24 GIA881 NRT → DPS May 24, 02:10 UTCMay 24, 15:25 UTC13h 15m
2026-05-23 GIA880 DPS → NRT May 23, 22:30 UTCMay 23, 23:15 UTC45m
2026-05-23 GIA880 DPS → NRT May 23, 02:20 UTCMay 23, 23:15 UTC20h 55m
2026-05-22 GIA880 DPS → NRT May 22, 11:50 UTCMay 22, 23:10 UTC11h 20m
2026-05-21 GIA981 JED → CGK May 21, 09:00 UTCMay 22, 03:00 UTC18h 0m
2026-05-20 GIA981 JED → CGK May 20, 08:55 UTCMay 21, 02:30 UTC17h 35m
2026-05-20 GIA981 JED → CGK May 20, 02:45 UTCMay 20, 03:05 UTC20m
2026-05-19 GIA981 JED → CGK May 19, 08:55 UTCMay 20, 02:00 UTC17h 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-GIF page for operator, model, and routing details .

Mode-S 8A0451 frequently asked

What is Mode-S code 8A0451?
8A0451 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GIF.
Where is Mode-S 8A0451 registered?
Mode-S code 8A0451 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0451 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0451, octal 42402121, decimal 9,045,073.
What flights does 8A0451 operate?
Mode-S 8A0451 has broadcast 18 distinct callsigns, including GIA1, GIA983, GIA981, GIA880, GIA714.