Apparatus

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sensors Mode-S transponder

8A04F4

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GNQ · BOEING 737-800

Hex
8A04F4
Octal
42402364
Decimal
9,045,236
Country
ID
Tail
PK-GNQ
Type
B738
No current signal · last broadcast 5h ago
Flights observed
155
Distinct callsigns
20
Country
ID
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 8A04F4.

Country allocation

The ICAO 24-bit address 8A04F4 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
GIA165 Garuda Indonesia 5 2026-05-14
GIA829 Garuda Indonesia 4 2026-05-17
GIA245 Garuda Indonesia 4 2026-05-01
GIA242 Garuda Indonesia 4 2026-05-01
GIA234 Garuda Indonesia 4 2026-05-13
GIA179 Garuda Indonesia 4 2026-05-21
GIA149 Garuda Indonesia 4 2026-05-11
GIA126 Garuda Indonesia 4 2026-05-27
GIA824 Garuda Indonesia 3 2026-05-27
GIA656 Garuda Indonesia 3 2026-05-14
GIA616 Garuda Indonesia 3 2026-05-23
GIA310 Garuda Indonesia 3 2026-05-29
GIA237 Garuda Indonesia 3 2026-05-13
GIA225 Garuda Indonesia 3 2026-05-03
GIA162 Garuda Indonesia 3 2026-05-14
GIA148 Garuda Indonesia 3 2026-05-11
GIA127 Garuda Indonesia 3 2026-05-27
GIA072 Garuda Indonesia 3 2026-05-26
GIA8674 Garuda Indonesia 2 2026-05-17
GIA8320 Garuda Indonesia 2 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 GIA605 UPG → CGK May 30, 09:10 UTCMay 30, 09:20 UTC10m
2026-05-29 GIA604 CGK → UPG May 29, 22:35 UTCMay 29, 23:05 UTC30m
2026-05-29 GIA310 CGK → SUB May 29, 07:15 UTCMay 29, 10:50 UTC3h 35m
2026-05-29 GIA175 PKU → CGK May 29, 04:00 UTCMay 29, 04:35 UTC35m
2026-05-29 GIA172 CGK → PKU May 29, 01:05 UTCMay 29, 02:10 UTC1h 5m
2026-05-28 GIA537 BDJ → CGK May 28, 10:10 UTCMay 28, 10:20 UTC10m
2026-05-28 GIA825 SIN → CGK May 28, 02:05 UTCMay 28, 02:40 UTC35m
2026-05-27 GIA824 CGK → SIN May 27, 23:20 UTCMay 28, 00:35 UTC1h 15m
2026-05-27 GIA417 DPS → CGK May 27, 12:00 UTCMay 27, 12:15 UTC15m
2026-05-27 GIA127 DJB → CGK May 27, 05:04 UTCMay 27, 05:19 UTC15m
2026-05-27 GIA126 CGK → DJB May 27, 02:14 UTCMay 27, 03:04 UTC50m
2026-05-26 GIA072 CGK → TKG May 26, 11:05 UTCMay 26, 11:15 UTC10m
2026-05-26 GIA7644 CGK → TKG May 26, 07:24 UTCMay 26, 07:40 UTC15m
2026-05-26 GIA127 DJB → CGK May 26, 04:30 UTCMay 26, 04:39 UTC10m
2026-05-26 GIA126 CGK → DJB May 26, 02:55 UTCMay 26, 03:09 UTC15m
2026-05-26 GIA126 CGK → DJB May 26, 02:15 UTCMay 26, 02:24 UTC10m
2026-05-26 GIA231 SRG → CGK May 26, 00:24 UTCMay 26, 00:54 UTC30m
2026-05-25 GIA246 CGK → SRG May 25, 10:50 UTCMay 25, 11:15 UTC25m
2026-05-24 GIA320 CGK → SUB May 24, 09:40 UTCMay 24, 13:15 UTC3h 35m
2026-05-24 GIA184 CGK → KNO May 24, 02:50 UTCMay 24, 07:20 UTC4h 30m
2026-05-23 GIA616 CGK → UPG May 23, 10:00 UTCMay 23, 10:25 UTC25m
2026-05-23 GIA404 CGK → DPS May 23, 03:00 UTCMay 23, 07:35 UTC4h 35m
2026-05-22 GIA616 CGK → UPG May 22, 10:10 UTCMay 22, 10:20 UTC10m
2026-05-21 GIA179 PKU → CGK May 21, 12:35 UTCMay 21, 12:50 UTC15m
2026-05-21 GIA179 PKU → CGK May 21, 11:25 UTCMay 21, 12:00 UTC35m
2026-05-21 GIA176 CGK → PKU May 21, 08:55 UTCMay 21, 10:00 UTC1h 5m
2026-05-21 GIA404 CGK → DPS May 21, 02:55 UTCMay 21, 07:25 UTC4h 30m
2026-05-20 GIA504 CGK → PNK May 20, 08:15 UTCMay 20, 08:25 UTC10m
2026-05-20 GIA155 BTH → CGK May 20, 05:55 UTCMay 20, 06:10 UTC15m
2026-05-20 GIA152 CGK → BTH May 20, 03:05 UTCMay 20, 04:05 UTC1h 0m
2026-05-20 GIA617 UPG → CGK May 20, 01:15 UTCMay 20, 01:30 UTC15m
2026-05-19 GIA616 CGK → UPG May 19, 10:05 UTCMay 19, 10:25 UTC20m
2026-05-19 GIA187 KNO → CGK May 19, 02:55 UTCMay 19, 08:15 UTC5h 20m
2026-05-19 GIA623 PLW → CGK May 19, 01:20 UTCMay 19, 01:35 UTC15m
2026-05-18 GIA622 CGK → PLW May 18, 19:35 UTCMay 18, 19:55 UTC20m
2026-05-18 GIA509 PNK → CGK May 18, 11:25 UTCMay 18, 11:45 UTC20m
2026-05-17 GIA456 CGK → KOE May 17, 23:55 UTCMay 18, 00:40 UTC45m
2026-05-17 GIA8674 BKK → CGK May 17, 14:55 UTCMay 17, 15:05 UTC10m
2026-05-17 GIA8674 BKK → CGK May 17, 12:01 UTCMay 17, 14:10 UTC2h 10m
2026-05-17 GIA8664 CGK → BKK May 17, 07:20 UTCMay 17, 10:25 UTC3h 5m
2026-05-17 GIA829 SIN → CGK May 17, 05:50 UTCMay 17, 06:00 UTC10m
2026-05-17 GIA829 SIN → CGK May 17, 04:45 UTCMay 17, 05:15 UTC30m
2026-05-17 GIA828 CGK → SIN May 17, 01:45 UTCMay 17, 03:05 UTC1h 20m
2026-05-15 GIA072 CGK → TKG May 15, 11:15 UTCMay 15, 11:25 UTC10m
2026-05-14 GIA656 CGK → DJJ May 14, 16:15 UTCMay 14, 16:40 UTC25m
2026-05-14 GIA165 PDG → CGK May 14, 11:01 UTCMay 14, 12:15 UTC1h 15m
2026-05-14 GIA162 CGK → PDG May 14, 08:10 UTCMay 14, 08:20 UTC10m
2026-05-13 GIA237 SRG → CGK May 13, 11:45 UTCMay 13, 12:15 UTC30m
2026-05-13 GIA234 CGK → SRG May 13, 09:25 UTCMay 13, 09:50 UTC25m
2026-05-13 GIA657 DJJ → CGK May 13, 07:45 UTCMay 13, 08:00 UTC15m

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

Mode-S 8A04F4 frequently asked

What is Mode-S code 8A04F4?
8A04F4 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GNQ.
Where is Mode-S 8A04F4 registered?
Mode-S code 8A04F4 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A04F4 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A04F4, octal 42402364, decimal 9,045,236.
What flights does 8A04F4 operate?
Mode-S 8A04F4 has broadcast 20 distinct callsigns, including GIA165, GIA829, GIA245, GIA242, GIA234.