Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 1h ago
Flights observed
149
Distinct callsigns
20
Country
ID
Last broadcast
1h ago

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
GIA204 Garuda Indonesia 6 2026-05-23
GIA409 Garuda Indonesia 5 2026-05-19
GIA322 Garuda Indonesia 5 2026-05-29
GIA153 Garuda Indonesia 5 2026-05-25
GIA404 Garuda Indonesia 4 2026-05-10
GIA313 Garuda Indonesia 4 2026-05-27
GIA252 Garuda Indonesia 4 2026-05-27
GIA075 Garuda Indonesia 4 2026-05-23
GIA074 Garuda Indonesia 4 2026-05-23
GIA537 Garuda Indonesia 3 2026-05-12
GIA408 Garuda Indonesia 3 2026-05-25
GIA326 Garuda Indonesia 3 2026-05-20
GIA320 Garuda Indonesia 3 2026-05-26
GIA310 Garuda Indonesia 3 2026-05-24
GIA304 Garuda Indonesia 3 2026-05-27
GIA206 Garuda Indonesia 3 2026-05-29
GIA205 Garuda Indonesia 3 2026-05-23
GIA155 Garuda Indonesia 3 2026-05-26
GIA821 Garuda Indonesia 2 2026-04-19
GIA820 Garuda Indonesia 2 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 GIA420 CGK → DPS May 30, 10:05 UTCMay 30, 10:50 UTC45m
2026-05-30 GIA137 PGK → CGK May 30, 06:10 UTCMay 30, 06:25 UTC15m
2026-05-30 GIA136 CGK → PGK May 30, 03:25 UTCMay 30, 03:35 UTC10m
2026-05-29 GIA206 CGK → YIA May 29, 12:25 UTCMay 30, 00:45 UTC12h 20m
2026-05-29 GIA213 YIA → CGK May 29, 08:10 UTCMay 29, 10:50 UTC2h 40m
2026-05-29 GIA322 CGK → SUB May 29, 02:00 UTCMay 29, 02:25 UTC25m
2026-05-28 GIA430 CGK → LOP May 28, 04:10 UTCMay 28, 08:35 UTC4h 25m
2026-05-27 GIA313 SUB → CGK May 27, 12:15 UTCMay 27, 12:25 UTC10m
2026-05-27 GIA252 JOG → DPS May 27, 07:00 UTCMay 27, 07:15 UTC15m
2026-05-27 GIA304 CGK → SUB May 27, 00:04 UTCMay 27, 05:29 UTC5h 25m
2026-05-26 GIA320 CGK → SUB May 26, 09:09 UTCMay 26, 09:49 UTC40m
2026-05-26 GIA155 BTH → CGK May 26, 05:30 UTCMay 26, 05:45 UTC15m
2026-05-26 GIA152 CGK → BTH May 26, 02:39 UTCMay 26, 03:35 UTC55m
2026-05-25 GIA426 CGK → DPS May 25, 11:50 UTCMay 25, 12:20 UTC30m
2026-05-25 GIA408 CGK → DPS May 25, 04:40 UTCMay 25, 05:25 UTC45m
2026-05-25 GIA153 BTH → CGK May 25, 02:10 UTCMay 25, 02:30 UTC20m
2026-05-24 GIA310 CGK → SUB May 24, 07:55 UTCMay 24, 11:15 UTC3h 20m
2026-05-24 GIA322 CGK → SUB May 24, 01:55 UTCMay 24, 02:20 UTC25m
2026-05-23 GIA325 SUB → CGK May 23, 09:20 UTCMay 23, 13:20 UTC4h 0m
2026-05-23 GIA075 TKG → CGK May 23, 07:45 UTCMay 23, 07:55 UTC10m
2026-05-23 GIA074 CGK → TKG May 23, 06:00 UTCMay 23, 06:15 UTC15m
2026-05-23 GIA205 YIA → CGK May 23, 03:50 UTCMay 23, 04:35 UTC45m
2026-05-23 GIA204 CGK → YIA May 23, 01:00 UTCMay 23, 01:30 UTC30m
2026-05-22 GIA310 CGK → SUB May 22, 07:30 UTCMay 22, 11:05 UTC3h 35m
2026-05-22 GIA322 CGK → SUB May 22, 02:25 UTCMay 22, 03:05 UTC40m
2026-05-21 GIA426 CGK → DPS May 21, 11:50 UTCMay 21, 12:10 UTC20m
2026-05-21 GIA408 CGK → DPS May 21, 04:50 UTCMay 21, 10:00 UTC5h 10m
2026-05-20 GIA326 CGK → SUB May 20, 10:35 UTCMay 20, 11:15 UTC40m
2026-05-20 GIA312 CGK → SUB May 20, 05:30 UTCMay 20, 09:05 UTC3h 35m
2026-05-20 GIA204 CGK → YIA May 20, 01:00 UTCMay 20, 03:30 UTC2h 30m
2026-05-19 GIA409 DPS → CGK May 19, 03:05 UTCMay 19, 07:35 UTC4h 30m
2026-05-19 GIA231 SRG → CGK May 19, 00:50 UTCMay 19, 01:05 UTC15m
2026-05-18 GIA246 CGK → SRG May 18, 10:55 UTCMay 18, 11:15 UTC20m
2026-05-18 GIA411 DPS → CGK May 18, 09:15 UTCMay 18, 09:25 UTC10m
2026-05-18 GIA408 CGK → DPS May 18, 04:55 UTCMay 18, 05:35 UTC40m
2026-05-18 GIA153 BTH → CGK May 18, 03:05 UTCMay 18, 03:20 UTC15m
2026-05-18 GIA153 BTH → CGK May 18, 02:15 UTCMay 18, 02:30 UTC15m
2026-05-17 GIA150 CGK → BTH May 17, 23:30 UTCMay 18, 00:30 UTC1h 0m
2026-05-17 GIA2034 YIA → CGK May 17, 11:55 UTCMay 17, 12:45 UTC50m
2026-05-17 GIA2544 YIA → DPS May 17, 05:15 UTCMay 17, 10:35 UTC5h 20m
2026-05-17 GIA2024 CGK → YIA May 17, 03:10 UTCMay 17, 03:40 UTC30m
2026-05-17 GIA207 YIA → CGK May 17, 00:05 UTCMay 17, 00:45 UTC40m
2026-05-16 GIA206 CGK → YIA May 16, 12:31 UTCMay 16, 13:01 UTC30m
2026-05-16 GIA7744 TKG → CGK May 16, 09:35 UTCMay 16, 09:51 UTC15m
2026-05-16 GIA7644 CGK → TKG May 16, 07:41 UTCMay 16, 07:55 UTC15m
2026-05-16 GIA322 CGK → SUB May 16, 02:25 UTCMay 16, 05:35 UTC3h 10m
2026-05-15 GIA7744 TKG → CGK May 15, 09:20 UTCMay 15, 09:40 UTC20m
2026-05-15 GIA7644 CGK → TKG May 15, 07:30 UTCMay 15, 07:40 UTC10m
2026-05-15 GIA322 CGK → SUB May 15, 02:00 UTCMay 15, 05:45 UTC3h 45m
2026-05-14 GIA155 BTH → CGK May 14, 06:25 UTCMay 14, 06:35 UTC10m

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 1h ago.
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 GIA204, GIA409, GIA322, GIA153, GIA404.