Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

8A028F

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GFR · BOEING 737-800

Hex
8A028F
Octal
42401217
Decimal
9,044,623
Country
ID
Tail
PK-GFR
Type
B738
No current signal · last broadcast 57m ago
Flights observed
61
Distinct callsigns
20
Country
ID
Last broadcast
57m ago

Last known position

Most recent position reported by Mode-S 8A028F.

Country allocation

The ICAO 24-bit address 8A028F 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 Garuda Indonesia 8 2026-05-08
GIA866 Garuda Indonesia 5 2026-05-08
GIA193 Garuda Indonesia 4 2026-06-06
GIA127 Garuda Indonesia 3 2026-06-12
GIA126 Garuda Indonesia 3 2026-06-12
GIA837 Garuda Indonesia 2 2026-06-01
GIA823 Garuda Indonesia 2 2026-05-07
GIA822 Garuda Indonesia 2 2026-05-13
GIA231 Garuda Indonesia 2 2026-06-12
GIA838 - 1 2026-06-17
GIA836 Garuda Indonesia 1 2026-05-16
GIA829 Garuda Indonesia 1 2026-05-16
GIA828 Garuda Indonesia 1 2026-05-16
GIA821 Garuda Indonesia 1 2026-06-01
GIA820 Garuda Indonesia 1 2026-06-01
GIA683 Garuda Indonesia 1 2026-05-10
GIA664 Garuda Indonesia 1 2026-05-23
GIA647 Garuda Indonesia 1 2026-06-03
GIA607 Garuda Indonesia 1 2026-04-20
GIA581 Garuda Indonesia 1 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-17 GIA838 - Jun 17, 11:35 UTCJun 17, 11:45 UTC10m
2026-06-17 GIA413 DPS → CGK Jun 17, 06:50 UTCJun 17, 07:00 UTC10m
2026-06-17 GIA207 YIA → CGK Jun 17, 00:45 UTCJun 17, 00:55 UTC10m
2026-06-15 GIA551 - Jun 15, 01:25 UTCJun 15, 01:35 UTC10m
2026-06-14 GIA187 - Jun 14, 08:05 UTCJun 14, 08:15 UTC10m
2026-06-13 GIA183 - Jun 13, 13:05 UTCJun 14, 07:20 UTC18h 15m
2026-06-13 GIA419 DPS → CGK Jun 13, 11:05 UTCJun 13, 11:15 UTC10m
2026-06-12 GIA453 LBJ → CGK Jun 12, 11:35 UTCJun 12, 11:45 UTC10m
2026-06-12 GIA127 DJB → CGK Jun 12, 04:40 UTCJun 12, 04:55 UTC15m
2026-06-12 GIA126 CGK → DJB Jun 12, 03:05 UTCJun 12, 03:25 UTC20m
2026-06-12 GIA231 SRG → CGK Jun 12, 01:05 UTCJun 12, 01:15 UTC10m
2026-06-10 GIA225 SOC → CGK Jun 10, 04:50 UTCJun 10, 05:00 UTC10m
2026-06-10 GIA401 DPS → CGK Jun 10, 00:45 UTCJun 10, 00:55 UTC10m
2026-06-09 GIA137 PGK → CGK Jun 9, 06:25 UTCJun 9, 06:35 UTC10m
2026-06-06 GIA193 KNO → CGK Jun 6, 10:25 UTCJun 6, 15:05 UTC4h 40m
2026-06-05 GIA581 AAP → CGK Jun 5, 06:10 UTCJun 5, 06:20 UTC10m
2026-06-03 GIA647 AMQ → CGK Jun 3, 10:10 UTCJun 3, 10:20 UTC10m
2026-06-01 GIA837 SIN → CGK Jun 1, 12:35 UTCJun 1, 12:50 UTC15m
2026-06-01 GIA821 KUL → CGK Jun 1, 05:10 UTCJun 1, 09:55 UTC4h 45m
2026-06-01 GIA820 CGK → KUL Jun 1, 02:20 UTCJun 1, 03:25 UTC1h 5m
2026-05-27 GIA193 KNO → CGK May 27, 14:55 UTCMay 27, 15:10 UTC15m
2026-05-27 GIA193 KNO → CGK May 27, 03:14 UTCMay 27, 14:20 UTC11h 6m
2026-05-23 GIA664 CGK → DJJ May 23, 15:55 UTCMay 23, 16:05 UTC10m
2026-05-21 GIA2034 YIA → CGK May 21, 12:00 UTCMay 21, 12:10 UTC10m
2026-05-19 GIA193 KNO → CGK May 19, 10:25 UTCMay 19, 14:25 UTC4h 0m
2026-05-18 GIA149 PDG → CGK May 18, 05:30 UTCMay 18, 06:01 UTC30m
2026-05-16 GIA837 SIN → CGK May 16, 12:21 UTCMay 16, 12:35 UTC15m
2026-05-16 GIA836 CGK → SIN May 16, 08:46 UTCMay 16, 09:45 UTC1h 0m
2026-05-16 GIA829 SIN → CGK May 16, 05:20 UTCMay 16, 05:30 UTC10m
2026-05-16 GIA828 CGK → SIN May 16, 02:20 UTCMay 16, 02:50 UTC30m
2026-05-15 GIA175 PKU → CGK May 15, 04:05 UTCMay 16, 02:50 UTC22h 44m
2026-05-14 GIA172 CGK → PKU May 14, 10:40 UTCMay 15, 02:15 UTC15h 35m
2026-05-13 GIA822 CGK → SIN May 13, 13:35 UTCMay 13, 14:00 UTC25m
2026-05-13 GIA127 DJB → CGK May 13, 04:25 UTCMay 13, 04:35 UTC10m
2026-05-13 GIA126 CGK → DJB May 13, 02:50 UTCMay 13, 03:10 UTC20m
2026-05-12 GIA245 SRG → CGK May 12, 09:25 UTCMay 12, 09:35 UTC10m
2026-05-12 GIA127 DJB → CGK May 12, 04:30 UTCMay 12, 04:40 UTC10m
2026-05-12 GIA126 CGK → DJB May 12, 02:50 UTCMay 12, 03:05 UTC15m
2026-05-10 GIA433 LOP → CGK May 10, 08:40 UTCMay 10, 08:54 UTC15m
2026-05-10 GIA683 SOQ → CGK May 10, 02:45 UTCMay 10, 02:55 UTC10m
2026-05-08 GIA867 BKK → CGK May 8, 09:59 UTCMay 8, 10:19 UTC20m
2026-05-08 GIA867 BKK → CGK May 8, 07:50 UTCMay 8, 08:05 UTC15m
2026-05-08 GIA866 CGK → BKK May 8, 03:24 UTCMay 8, 06:04 UTC2h 40m
2026-05-07 GIA823 SIN → CGK May 7, 23:59 UTCMay 8, 00:09 UTC10m
2026-05-07 GIA867 BKK → CGK May 7, 09:15 UTCMay 7, 13:50 UTC4h 35m
2026-05-07 GIA867 BKK → CGK May 7, 07:40 UTCMay 7, 07:55 UTC15m
2026-05-07 GIA866 CGK → BKK May 7, 03:20 UTCMay 7, 05:55 UTC2h 35m
2026-05-06 GIA823 SIN → CGK May 6, 23:55 UTCMay 7, 00:10 UTC15m
2026-05-06 GIA822 CGK → SIN May 6, 13:20 UTCMay 6, 13:50 UTC30m
2026-05-06 GIA867 BKK → CGK May 6, 07:40 UTCMay 6, 09:25 UTC1h 45m

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

Mode-S 8A028F frequently asked

What is Mode-S code 8A028F?
8A028F is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GFR.
Where is Mode-S 8A028F registered?
Mode-S code 8A028F is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A028F broadcasting right now?
No active broadcast right now. Last signal was 57m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A028F, octal 42401217, decimal 9,044,623.
What flights does 8A028F operate?
Mode-S 8A028F has broadcast 20 distinct callsigns, including GIA867, GIA866, GIA193, GIA127, GIA126.