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sensors Mode-S transponder

8A044F

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GNN · BOEING 737-800

Hex
8A044F
Octal
42402117
Decimal
9,045,071
Country
ID
Tail
PK-GNN
Type
B738
No current signal · last broadcast 12h ago
Flights observed
294
Distinct callsigns
20
Country
ID
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 8A044F.

Country allocation

The ICAO 24-bit address 8A044F 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
GIA839 - 7 2026-07-11
GIA682 - 7 2026-07-10
GIA837 Garuda Indonesia 6 2026-07-04
GIA433 - 6 2026-07-11
GIA147 - 6 2026-07-09
GIA829 - 5 2026-07-05
GIA683 - 5 2026-06-27
GIA430 - 4 2026-07-11
GIA212 - 4 2026-07-07
GIA193 Garuda Indonesia 4 2026-05-22
GIA165 - 4 2026-07-02
GIA163 Garuda Indonesia 4 2026-06-11
GIA160 Garuda Indonesia 4 2026-06-11
GIA155 Garuda Indonesia 4 2026-06-04
GIA127 - 4 2026-06-14
GIA121 Garuda Indonesia 4 2026-06-19
GIA109 Garuda Indonesia 4 2026-05-05
GIA838 - 3 2026-07-11
GIA836 - 3 2026-07-04
GIA833 Garuda Indonesia 3 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 GIA177 - Jul 14, 09:05 UTCJul 14, 09:20 UTC15m
2026-07-14 GIA177 - Jul 14, 07:50 UTCJul 14, 08:30 UTC40m
2026-07-14 GIA174 - Jul 14, 05:20 UTCJul 14, 06:30 UTC1h 10m
2026-07-14 GIA535 - Jul 14, 03:45 UTCJul 14, 03:55 UTC10m
2026-07-13 GIA187 - Jul 13, 02:45 UTCJul 13, 08:10 UTC5h 25m
2026-07-13 GIA305 - Jul 13, 00:55 UTCJul 13, 01:10 UTC15m
2026-07-12 GIA317 - Jul 12, 08:45 UTCJul 12, 08:55 UTC10m
2026-07-12 GIA312 - Jul 12, 05:30 UTCJul 12, 05:50 UTC20m
2026-07-12 GIA205 - Jul 12, 01:30 UTCJul 12, 03:55 UTC2h 25m
2026-07-11 GIA839 - Jul 11, 15:10 UTCJul 11, 15:25 UTC15m
2026-07-11 GIA839 - Jul 11, 14:05 UTCJul 11, 14:35 UTC30m
2026-07-11 GIA838 - Jul 11, 11:25 UTCJul 11, 12:05 UTC40m
2026-07-11 GIA433 - Jul 11, 08:50 UTCJul 11, 09:00 UTC10m
2026-07-11 GIA430 - Jul 11, 04:30 UTCJul 11, 05:10 UTC40m
2026-07-10 GIA682 - Jul 10, 17:30 UTCJul 10, 17:50 UTC20m
2026-07-10 GIA899 - Jul 10, 12:45 UTCJul 10, 12:55 UTC10m
2026-07-10 GIA899 - Jul 10, 08:25 UTCJul 10, 08:35 UTC10m
2026-07-10 GIA898 - Jul 10, 05:45 UTCJul 10, 06:00 UTC15m
2026-07-10 GIA898 - Jul 10, 01:30 UTCJul 10, 02:55 UTC1h 25m
2026-07-09 GIA147 - Jul 9, 06:20 UTCJul 9, 11:35 UTC5h 15m
2026-07-09 GIA7734 - Jul 9, 03:55 UTCJul 9, 04:05 UTC10m
2026-07-09 GIA561 - Jul 9, 00:05 UTCJul 9, 00:15 UTC10m
2026-07-08 GIA245 - Jul 8, 09:05 UTCJul 8, 09:35 UTC30m
2026-07-08 GIA242 - Jul 8, 07:05 UTCJul 8, 07:30 UTC25m
2026-07-08 GIA431 - Jul 8, 04:55 UTCJul 8, 05:05 UTC10m
2026-07-08 GIA432 - Jul 8, 00:50 UTCJul 8, 01:15 UTC25m
2026-07-07 GIA212 - Jul 7, 08:20 UTCJul 7, 11:00 UTC2h 40m
2026-07-07 GIA322 - Jul 7, 01:55 UTCJul 7, 02:25 UTC30m
2026-07-07 GIA073 - Jul 7, 00:25 UTCJul 7, 00:45 UTC20m
2026-07-06 - - Jul 6, 11:10 UTCJul 6, 11:25 UTC15m
2026-07-06 GIA601 - Jul 6, 09:40 UTCJul 6, 09:50 UTC10m
2026-07-05 GIA207 - Jul 5, 12:45 UTCJul 6, 00:50 UTC12h 5m
2026-07-05 GIA213 - Jul 5, 08:15 UTCJul 5, 11:05 UTC2h 50m
2026-07-05 GIA829 - Jul 5, 06:05 UTCJul 5, 06:15 UTC10m
2026-07-05 GIA829 - Jul 5, 04:55 UTCJul 5, 05:20 UTC25m
2026-07-05 GIA828 - Jul 5, 02:00 UTCJul 5, 03:15 UTC1h 15m
2026-07-04 GIA837 SIN → CGK Jul 4, 13:10 UTCJul 4, 13:25 UTC15m
2026-07-04 GIA837 SIN → CGK Jul 4, 12:25 UTCJul 4, 12:40 UTC15m
2026-07-04 GIA836 - Jul 4, 09:15 UTCJul 4, 10:15 UTC1h 0m
2026-07-04 GIA821 - Jul 4, 06:50 UTCJul 4, 07:05 UTC15m
2026-07-04 GIA821 - Jul 4, 05:25 UTCJul 4, 06:15 UTC50m
2026-07-04 GIA820 - Jul 4, 02:00 UTCJul 4, 03:50 UTC1h 50m
2026-07-03 GIA312 - Jul 3, 05:40 UTCJul 3, 06:05 UTC25m
2026-07-03 GIA535 - Jul 3, 04:00 UTCJul 3, 04:10 UTC10m
2026-07-02 GIA165 - Jul 2, 12:25 UTCJul 2, 12:40 UTC15m
2026-07-02 GIA165 - Jul 2, 09:25 UTCJul 2, 11:45 UTC2h 20m
2026-07-02 GIA829 - Jul 2, 06:35 UTCJul 2, 06:45 UTC10m
2026-07-02 GIA829 - Jul 2, 05:20 UTCJul 2, 05:50 UTC30m
2026-07-02 GIA828 - Jul 2, 02:05 UTCJul 2, 03:25 UTC1h 20m
2026-06-30 GIA652 CGK → DPS Jun 30, 14:40 UTCJun 30, 15:25 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-GNN page for operator, model, and routing details .

Mode-S 8A044F frequently asked

What is Mode-S code 8A044F?
8A044F is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GNN.
Where is Mode-S 8A044F registered?
Mode-S code 8A044F is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A044F broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A044F, octal 42402117, decimal 9,045,071.
What flights does 8A044F operate?
Mode-S 8A044F has broadcast 20 distinct callsigns, including GIA839, GIA682, GIA837, GIA433, GIA147.