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sensors Mode-S transponder

8A03C6

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GFU · BOEING 737-800

Hex
8A03C6
Octal
42401706
Decimal
9,044,934
Country
ID
Tail
PK-GFU
Type
B738
No current signal · last broadcast Jul 26, 11:30 UTC
Flights observed
378
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 11:30 UTC

Last known position

Most recent position reported by Mode-S 8A03C6.

Country allocation

The ICAO 24-bit address 8A03C6 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
GIA867 - 13 2026-07-17
GIA823 - 8 2026-06-28
GIA149 Garuda Indonesia 8 2026-07-23
GIA121 - 8 2026-07-11
GIA866 - 7 2026-07-17
GIA422 Garuda Indonesia 6 2026-07-25
GIA193 Garuda Indonesia 6 2026-07-05
GIA147 Garuda Indonesia 6 2026-07-24
GIA833 - 5 2026-07-02
GIA822 - 5 2026-06-27
GIA682 - 5 2026-06-23
GIA245 Garuda Indonesia 5 2026-07-21
GIA242 Garuda Indonesia 5 2026-07-21
GIA183 - 5 2026-06-22
GIA163 Garuda Indonesia 5 2026-07-24
GIA126 - 5 2026-07-11
GIA825 - 4 2026-07-02
GIA824 - 4 2026-07-01
GIA646 Garuda Indonesia 4 2026-05-04
GIA622 Garuda Indonesia 4 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GIA072 CGK → TKG Jul 26, 11:10 UTCJul 26, 11:30 UTC20m
2026-07-26 GIA601 MDC → CGK Jul 26, 09:20 UTCJul 26, 09:40 UTC20m
2026-07-26 GIA207 YIA → CGK Jul 26, 00:20 UTCJul 26, 00:55 UTC35m
2026-07-25 GIA206 CGK → YIA Jul 25, 13:00 UTCJul 25, 13:25 UTC25m
2026-07-25 GIA422 CGK → DPS Jul 25, 07:00 UTCJul 25, 11:30 UTC4h 30m
2026-07-25 GIA611 UPG → CGK Jul 25, 00:20 UTCJul 25, 05:45 UTC5h 25m
2026-07-24 GIA147 BTJ → CGK Jul 24, 05:20 UTCJul 24, 11:15 UTC5h 55m
2026-07-24 GIA163 PDG → CGK Jul 24, 03:35 UTCJul 24, 03:55 UTC20m
2026-07-24 GIA163 PDG → CGK Jul 24, 02:25 UTCJul 24, 03:00 UTC35m
2026-07-23 GIA160 CGK → PDG Jul 23, 23:55 UTCJul 24, 01:00 UTC1h 5m
2026-07-23 GIA157 BTH → CGK Jul 23, 11:00 UTCJul 23, 12:15 UTC1h 15m
2026-07-23 GIA154 CGK → BTH Jul 23, 08:20 UTCJul 23, 08:35 UTC15m
2026-07-23 GIA149 PDG → CGK Jul 23, 06:35 UTCJul 23, 06:50 UTC15m
2026-07-23 GIA149 PDG → CGK Jul 23, 03:30 UTCJul 23, 05:50 UTC2h 20m
2026-07-23 GIA148 CGK → BTH Jul 23, 02:40 UTCJul 23, 02:55 UTC15m
2026-07-23 GIA305 SUB → CGK Jul 23, 01:15 UTCJul 23, 01:25 UTC10m
2026-07-22 GIA322 CGK → SUB Jul 22, 02:15 UTCJul 22, 05:20 UTC3h 5m
2026-07-22 GIA073 TKG → CGK Jul 22, 00:35 UTCJul 22, 01:00 UTC25m
2026-07-21 GIA072 CGK → TKG Jul 21, 11:10 UTCJul 21, 11:25 UTC15m
2026-07-21 GIA245 SRG → CGK Jul 21, 09:25 UTCJul 21, 09:40 UTC15m
2026-07-21 GIA242 CGK → SRG Jul 21, 06:55 UTCJul 21, 07:20 UTC25m
2026-07-21 GIA431 LOP → CGK Jul 21, 04:55 UTCJul 21, 05:10 UTC15m
2026-07-21 GIA432 CGK → LOP Jul 21, 00:45 UTCJul 21, 01:30 UTC45m
2026-07-20 GIA213 - Jul 20, 08:00 UTCJul 20, 10:55 UTC2h 55m
2026-07-20 GIA322 CGK → SUB Jul 20, 02:15 UTCJul 20, 05:40 UTC3h 25m
2026-07-20 GIA073 TKG → CGK Jul 20, 00:30 UTCJul 20, 01:00 UTC30m
2026-07-19 GIA072 CGK → TKG Jul 19, 11:35 UTCJul 19, 12:00 UTC25m
2026-07-19 GIA601 - Jul 19, 09:35 UTCJul 19, 09:50 UTC15m
2026-07-18 GIA616 - Jul 18, 09:50 UTCJul 19, 01:20 UTC15h 30m
2026-07-17 GIA604 - Jul 17, 22:49 UTCJul 18, 08:10 UTC9h 21m
2026-07-17 GIA867 - Jul 17, 10:25 UTCJul 17, 10:44 UTC20m
2026-07-17 GIA867 - Jul 17, 07:35 UTCJul 17, 09:45 UTC2h 10m
2026-07-17 GIA866 - Jul 17, 02:39 UTCJul 17, 05:50 UTC3h 10m
2026-07-17 GIA231 - Jul 17, 00:40 UTCJul 17, 01:09 UTC30m
2026-07-16 GIA246 - Jul 16, 10:59 UTCJul 16, 11:25 UTC25m
2026-07-16 GIA245 - Jul 16, 09:05 UTCJul 16, 09:35 UTC30m
2026-07-16 GIA242 - Jul 16, 06:50 UTCJul 16, 07:15 UTC25m
2026-07-16 GIA665 - Jul 16, 04:55 UTCJul 16, 05:10 UTC15m
2026-07-15 GIA664 - Jul 15, 18:10 UTCJul 15, 18:45 UTC35m
2026-07-15 GIA509 - Jul 15, 11:40 UTCJul 15, 11:55 UTC15m
2026-07-15 GIA155 - Jul 15, 06:40 UTCJul 15, 06:55 UTC15m
2026-07-15 GIA152 - Jul 15, 03:05 UTCJul 15, 03:25 UTC20m
2026-07-15 GIA617 - Jul 15, 01:00 UTCJul 15, 01:20 UTC20m
2026-07-14 GIA616 - Jul 14, 10:00 UTCJul 14, 10:25 UTC25m
2026-07-14 GIA653 - Jul 14, 08:10 UTCJul 14, 08:25 UTC15m
2026-07-13 GIA652 - Jul 13, 14:35 UTCJul 13, 15:15 UTC40m
2026-07-13 GIA147 - Jul 13, 06:15 UTCJul 13, 12:20 UTC6h 5m
2026-07-12 GIA509 - Jul 12, 15:01 UTCJul 12, 15:15 UTC15m
2026-07-12 GIA653 - Jul 12, 08:15 UTCJul 12, 08:30 UTC15m
2026-07-11 GIA652 - Jul 11, 14:45 UTCJul 11, 15:30 UTC45m

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

Mode-S 8A03C6 frequently asked

What is Mode-S code 8A03C6?
8A03C6 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GFU.
Where is Mode-S 8A03C6 registered?
Mode-S code 8A03C6 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A03C6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 11:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A03C6, octal 42401706, decimal 9,044,934.
What flights does 8A03C6 operate?
Mode-S 8A03C6 has broadcast 20 distinct callsigns, including GIA867, GIA823, GIA149, GIA121, GIA866.