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sensors Mode-S transponder

8A023E

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GFF · BOEING 737-800

Hex
8A023E
Octal
42401076
Decimal
9,044,542
Country
ID
Tail
PK-GFF
Type
B738
No current signal · last broadcast Jul 26, 12:20 UTC
Flights observed
350
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 12:20 UTC

Last known position

Most recent position reported by Mode-S 8A023E.

Country allocation

The ICAO 24-bit address 8A023E 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
GIA304 Garuda Indonesia 26 2026-07-23
GIA313 Garuda Indonesia 22 2026-07-23
GIA252 Garuda Indonesia 19 2026-07-19
GIA153 Garuda Indonesia 11 2026-07-24
GIA537 - 8 2026-07-17
GIA409 - 8 2026-07-20
GIA408 Garuda Indonesia 7 2026-07-24
GIA404 Garuda Indonesia 7 2026-07-20
GIA402 Garuda Indonesia 7 2026-07-26
GIA204 Garuda Indonesia 7 2026-06-10
GIA322 - 6 2026-06-15
GIA228 Garuda Indonesia 6 2026-07-25
GIA221 Garuda Indonesia 6 2026-07-25
GIA150 Garuda Indonesia 6 2026-07-23
GIA426 Garuda Indonesia 5 2026-07-06
GIA407 Garuda Indonesia 5 2026-07-21
GIA312 - 5 2026-07-11
GIA253 Garuda Indonesia 5 2026-07-23
GIA222 Garuda Indonesia 5 2026-07-25
GIA205 - 5 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GIA417 DPS → CGK Jul 26, 07:50 UTCJul 26, 12:20 UTC4h 30m
2026-07-26 GIA402 CGK → DPS Jul 26, 00:20 UTCJul 26, 05:55 UTC5h 35m
2026-07-25 GIA221 SOC → CGK Jul 25, 09:30 UTCJul 25, 10:05 UTC35m
2026-07-25 GIA228 CGK → SOC Jul 25, 07:15 UTCJul 25, 08:00 UTC45m
2026-07-25 GIA225 SOC → CGK Jul 25, 04:20 UTCJul 25, 04:50 UTC30m
2026-07-25 GIA222 CGK → SOC Jul 25, 02:05 UTCJul 25, 02:30 UTC25m
2026-07-24 GIA401 DPS → CGK Jul 24, 05:35 UTCJul 25, 00:45 UTC19h 10m
2026-07-24 GIA408 CGK → DPS Jul 24, 04:50 UTCJul 25, 00:45 UTC19h 55m
2026-07-24 GIA153 BTH → CGK Jul 24, 03:05 UTCJul 24, 03:25 UTC20m
2026-07-24 GIA153 BTH → CGK Jul 24, 02:20 UTCJul 24, 02:35 UTC15m
2026-07-23 GIA150 CGK → BTH Jul 23, 23:35 UTCJul 24, 00:30 UTC55m
2026-07-23 GIA313 SUB → CGK Jul 23, 07:00 UTCJul 23, 12:25 UTC5h 25m
2026-07-23 GIA253 DPS → YIA Jul 23, 05:20 UTCJul 23, 05:30 UTC10m
2026-07-23 GIA304 CGK → SUB Jul 23, 00:10 UTCJul 23, 00:50 UTC40m
2026-07-22 GIA313 SUB → CGK Jul 22, 11:55 UTCJul 22, 12:35 UTC40m
2026-07-22 GIA304 CGK → SUB Jul 22, 00:15 UTCJul 22, 05:25 UTC5h 10m
2026-07-21 GIA315 SUB → CGK Jul 21, 11:10 UTCJul 21, 11:20 UTC10m
2026-07-21 GIA326 CGK → SUB Jul 21, 07:55 UTCJul 21, 08:40 UTC45m
2026-07-21 GIA407 DPS → CGK Jul 21, 05:25 UTCJul 21, 05:40 UTC15m
2026-07-21 GIA402 CGK → DPS Jul 21, 00:20 UTCJul 21, 01:05 UTC45m
2026-07-20 GIA421 DPS → CGK Jul 20, 13:25 UTCJul 20, 13:35 UTC10m
2026-07-20 GIA414 - Jul 20, 09:30 UTCJul 20, 10:15 UTC45m
2026-07-20 GIA409 - Jul 20, 07:00 UTCJul 20, 07:15 UTC15m
2026-07-20 GIA404 CGK → DPS Jul 20, 02:45 UTCJul 20, 03:30 UTC45m
2026-07-20 GIA403 - Jul 20, 01:00 UTCJul 20, 01:10 UTC10m
2026-07-19 GIA424 CGK → DPS Jul 19, 14:05 UTCJul 19, 14:50 UTC45m
2026-07-19 GIA315 - Jul 19, 12:25 UTCJul 19, 12:40 UTC15m
2026-07-19 GIA252 JOG → DPS Jul 19, 06:55 UTCJul 19, 07:10 UTC15m
2026-07-18 GIA304 CGK → SUB Jul 18, 23:55 UTCJul 19, 05:20 UTC5h 25m
2026-07-18 GIA159 BTH → CGK Jul 18, 09:50 UTCJul 18, 10:05 UTC15m
2026-07-18 GIA159 BTH → CGK Jul 18, 09:00 UTCJul 18, 09:15 UTC15m
2026-07-18 GIA156 CGK → BTH Jul 18, 06:25 UTCJul 18, 07:20 UTC55m
2026-07-18 GIA225 - Jul 18, 04:25 UTCJul 18, 04:55 UTC30m
2026-07-18 GIA222 - Jul 18, 02:05 UTCJul 18, 02:50 UTC46m
2026-07-18 GIA401 DPS → CGK Jul 18, 00:39 UTCJul 18, 00:50 UTC10m
2026-07-17 GIA424 - Jul 17, 13:00 UTCJul 17, 13:40 UTC40m
2026-07-17 GIA537 - Jul 17, 10:55 UTCJul 17, 11:10 UTC15m
2026-07-17 GIA127 - Jul 17, 04:35 UTCJul 17, 05:25 UTC50m
2026-07-17 GIA126 - Jul 17, 02:25 UTCJul 17, 03:20 UTC55m
2026-07-17 GIA533 - Jul 17, 00:20 UTCJul 17, 00:35 UTC15m
2026-07-16 GIA221 - Jul 16, 10:00 UTCJul 16, 10:10 UTC10m
2026-07-16 GIA228 - Jul 16, 07:20 UTCJul 16, 07:55 UTC35m
2026-07-16 GIA407 - Jul 16, 05:25 UTCJul 16, 05:40 UTC15m
2026-07-16 GIA402 - Jul 16, 00:30 UTCJul 16, 01:15 UTC45m
2026-07-15 GIA313 - Jul 15, 12:50 UTCJul 15, 13:00 UTC10m
2026-07-15 GIA252 - Jul 15, 07:00 UTCJul 15, 07:10 UTC10m
2026-07-15 GIA304 - Jul 15, 00:10 UTCJul 15, 05:15 UTC5h 5m
2026-07-14 GIA313 - Jul 14, 12:20 UTCJul 14, 12:35 UTC15m
2026-07-14 GIA252 - Jul 14, 07:00 UTCJul 14, 07:10 UTC10m
2026-07-14 GIA304 - Jul 14, 00:15 UTCJul 14, 05:15 UTC5h 0m

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

Mode-S 8A023E frequently asked

What is Mode-S code 8A023E?
8A023E is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GFF.
Where is Mode-S 8A023E registered?
Mode-S code 8A023E is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A023E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A023E, octal 42401076, decimal 9,044,542.
What flights does 8A023E operate?
Mode-S 8A023E has broadcast 20 distinct callsigns, including GIA304, GIA313, GIA252, GIA153, GIA537.