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 7d ago
Flights observed
123
Distinct callsigns
20
Country
ID
Last broadcast
7d 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
GIA175 Garuda Indonesia 6 2026-07-23
GIA866 Garuda Indonesia 5 2026-05-08
GIA172 Garuda Indonesia 5 2026-07-23
GIA193 Garuda Indonesia 4 2026-06-06
GIA126 Garuda Indonesia 4 2026-07-21
GIA838 - 3 2026-07-08
GIA581 - 3 2026-07-19
GIA245 Garuda Indonesia 3 2026-07-23
GIA187 - 3 2026-06-21
GIA155 - 3 2026-06-25
GIA127 Garuda Indonesia 3 2026-06-12
GIA839 - 2 2026-07-01
GIA837 Garuda Indonesia 2 2026-06-01
GIA833 - 2 2026-07-01
GIA832 - 2 2026-07-01
GIA828 Garuda Indonesia 2 2026-07-22
GIA823 Garuda Indonesia 2 2026-05-07
GIA822 Garuda Indonesia 2 2026-05-13
GIA433 Garuda Indonesia 2 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 GIA409 DPS → CGK Jul 25, 07:45 UTCJul 25, 07:55 UTC10m
2026-07-25 GIA404 CGK → DPS Jul 25, 02:55 UTCJul 25, 03:05 UTC10m
2026-07-23 GIA245 SRG → CGK Jul 23, 09:25 UTCJul 23, 09:35 UTC10m
2026-07-23 GIA175 PKU → CGK Jul 23, 05:15 UTCJul 23, 05:25 UTC10m
2026-07-23 GIA175 PKU → CGK Jul 23, 04:00 UTCJul 23, 04:35 UTC35m
2026-07-23 GIA172 CGK → PKU Jul 23, 01:45 UTCJul 23, 02:15 UTC30m
2026-07-22 GIA421 DPS → CGK Jul 22, 13:30 UTCJul 22, 13:40 UTC10m
2026-07-22 GIA828 CGK → SIN Jul 22, 01:50 UTCJul 22, 02:45 UTC55m
2026-07-21 GIA221 SOC → CGK Jul 21, 09:40 UTCJul 21, 09:50 UTC10m
2026-07-21 GIA126 CGK → DJB Jul 21, 03:00 UTCJul 21, 03:20 UTC20m
2026-07-20 GIA433 LOP → CGK Jul 20, 08:35 UTCJul 20, 08:45 UTC10m
2026-07-20 GIA323 SUB → CGK Jul 20, 02:40 UTCJul 20, 02:55 UTC15m
2026-07-19 GIA165 - Jul 19, 09:10 UTCJul 19, 11:20 UTC2h 10m
2026-07-19 GIA581 - Jul 19, 06:20 UTCJul 19, 06:30 UTC10m
2026-07-18 GIA221 - Jul 18, 10:00 UTCJul 18, 10:10 UTC10m
2026-07-18 GIA327 - Jul 18, 05:45 UTCJul 18, 05:55 UTC10m
2026-07-17 GIA207 YIA → CGK Jul 17, 00:40 UTCJul 17, 00:55 UTC15m
2026-07-16 GIA457 - Jul 16, 06:15 UTCJul 16, 06:25 UTC10m
2026-07-15 GIA245 - Jul 15, 09:30 UTCJul 15, 09:40 UTC10m
2026-07-14 GIA165 - Jul 14, 10:40 UTCJul 14, 11:15 UTC35m
2026-07-14 GIA162 - Jul 14, 08:50 UTCJul 14, 09:00 UTC10m
2026-07-14 GIA581 - Jul 14, 06:20 UTCJul 14, 06:30 UTC10m
2026-07-13 GIA175 - Jul 13, 03:55 UTCJul 13, 04:35 UTC40m
2026-07-13 GIA172 - Jul 13, 01:55 UTCJul 13, 02:25 UTC30m
2026-07-12 GIA175 - Jul 12, 04:01 UTCJul 12, 04:35 UTC35m
2026-07-12 GIA172 - Jul 12, 01:55 UTCJul 12, 02:25 UTC30m
2026-07-11 GIA213 - Jul 11, 10:55 UTCJul 11, 11:05 UTC10m
2026-07-10 GIA605 - Jul 10, 08:00 UTCJul 10, 08:10 UTC10m
2026-07-09 GIA121 - Jul 9, 07:40 UTCJul 9, 11:35 UTC3h 55m
2026-07-08 GIA838 - Jul 8, 11:50 UTCJul 8, 12:20 UTC30m
2026-07-08 GIA411 - Jul 8, 09:45 UTCJul 8, 09:55 UTC10m
2026-07-08 GIA153 - Jul 8, 02:25 UTCJul 8, 02:45 UTC20m
2026-07-07 GIA150 - Jul 7, 23:45 UTCJul 8, 00:40 UTC55m
2026-07-07 GIA203 - Jul 7, 12:00 UTCJul 7, 12:30 UTC30m
2026-07-05 GIA179 PKU → CGK Jul 5, 11:20 UTCJul 5, 11:55 UTC35m
2026-07-05 GIA176 - Jul 5, 09:15 UTCJul 5, 09:50 UTC35m
2026-07-04 GIA141 - Jul 4, 01:45 UTCJul 4, 06:25 UTC4h 40m
2026-07-02 GIA649 - Jul 2, 02:15 UTCJul 2, 02:25 UTC10m
2026-07-01 GIA839 - Jul 1, 14:25 UTCJul 1, 14:40 UTC15m
2026-07-01 GIA838 - Jul 1, 12:05 UTCJul 1, 12:30 UTC25m
2026-07-01 GIA833 - Jul 1, 08:55 UTCJul 1, 09:05 UTC10m
2026-07-01 GIA832 - Jul 1, 05:45 UTCJul 1, 06:10 UTC25m
2026-07-01 GIA825 - Jul 1, 02:00 UTCJul 1, 02:35 UTC35m
2026-06-30 GIA824 - Jun 30, 23:15 UTCJul 1, 00:25 UTC1h 10m
2026-06-30 GIA8674 - Jun 30, 11:35 UTCJun 30, 13:50 UTC2h 15m
2026-06-30 GIA8664 - Jun 30, 07:25 UTCJun 30, 10:00 UTC2h 35m
2026-06-30 GIA401 - Jun 30, 00:49 UTCJun 30, 01:00 UTC10m
2026-06-29 GIA175 - Jun 29, 03:54 UTCJun 29, 04:30 UTC35m
2026-06-29 GIA172 - Jun 29, 01:50 UTCJun 29, 02:25 UTC35m
2026-06-26 GIA121 KNO → CGK Jun 26, 08:00 UTCJun 26, 11:49 UTC3h 50m

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 7d 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, GIA175, GIA866, GIA172, GIA193.