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sensors Mode-S transponder

8A0241

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GFH · BOEING 737-800

Hex
8A0241
Octal
42401101
Decimal
9,044,545
Country
ID
Tail
PK-GFH
Type
B738
No current signal · last broadcast Jul 26, 12:35 UTC
Flights observed
367
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 12:35 UTC

Last known position

Most recent position reported by Mode-S 8A0241.

Country allocation

The ICAO 24-bit address 8A0241 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
GIA863 - 15 2026-06-29
GIA860 - 15 2026-06-28
GIA825 - 13 2026-07-13
GIA833 - 10 2026-07-13
GIA824 - 10 2026-07-12
GIA839 - 8 2026-07-07
GIA832 - 6 2026-07-13
GIA823 - 6 2026-07-14
GIA610 Garuda Indonesia 6 2026-07-21
GIA601 - 6 2026-06-23
GIA408 Garuda Indonesia 6 2026-07-25
GIA157 Garuda Indonesia 6 2026-07-24
GIA867 - 5 2026-07-03
GIA838 - 5 2026-07-07
GIA829 Garuda Indonesia 5 2026-06-05
GIA615 - 5 2026-07-22
GIA422 Garuda Indonesia 5 2026-07-21
GIA419 Garuda Indonesia 5 2026-07-21
GIA837 - 4 2026-07-12
GIA822 - 4 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GIA313 SUB → CGK Jul 26, 12:05 UTCJul 26, 12:35 UTC30m
2026-07-26 GIA252 JOG → DPS Jul 26, 07:00 UTCJul 26, 07:10 UTC10m
2026-07-26 GIA304 CGK → SUB Jul 26, 00:05 UTCJul 26, 00:55 UTC50m
2026-07-25 GIA411 DPS → CGK Jul 25, 09:20 UTCJul 25, 09:30 UTC10m
2026-07-25 GIA408 CGK → DPS Jul 25, 04:45 UTCJul 25, 05:05 UTC20m
2026-07-24 GIA157 BTH → CGK Jul 24, 12:05 UTCJul 24, 12:20 UTC15m
2026-07-24 GIA157 BTH → CGK Jul 24, 11:15 UTCJul 24, 11:25 UTC10m
2026-07-24 GIA154 CGK → BTH Jul 24, 09:05 UTCJul 24, 09:30 UTC25m
2026-07-24 GIA413 DPS → CGK Jul 24, 06:30 UTCJul 24, 06:45 UTC15m
2026-07-24 GIA406 CGK → DPS Jul 24, 02:00 UTCJul 24, 02:15 UTC15m
2026-07-23 GIA159 BTH → CGK Jul 23, 10:05 UTCJul 23, 10:20 UTC15m
2026-07-23 GIA159 BTH → CGK Jul 23, 09:15 UTCJul 23, 09:25 UTC10m
2026-07-23 GIA156 CGK → BTH Jul 23, 06:10 UTCJul 23, 06:20 UTC10m
2026-07-23 GIA302 CGK → SUB Jul 23, 01:05 UTCJul 23, 01:15 UTC10m
2026-07-22 GIA615 - Jul 22, 14:40 UTCJul 22, 14:50 UTC10m
2026-07-22 GIA404 CGK → DPS Jul 22, 03:25 UTCJul 22, 04:05 UTC40m
2026-07-21 GIA324 - Jul 21, 13:35 UTCJul 21, 13:55 UTC20m
2026-07-21 GIA419 DPS → CGK Jul 21, 11:30 UTCJul 21, 11:45 UTC15m
2026-07-21 GIA422 CGK → DPS Jul 21, 07:20 UTCJul 21, 08:00 UTC40m
2026-07-21 GIA611 UPG → CGK Jul 21, 05:25 UTCJul 21, 05:35 UTC10m
2026-07-21 GIA610 CGK → UPG Jul 21, 00:20 UTCJul 21, 00:40 UTC20m
2026-07-20 GIA615 - Jul 20, 13:55 UTCJul 20, 14:10 UTC15m
2026-07-20 GIA612 CGK → UPG Jul 20, 09:00 UTCJul 20, 09:25 UTC25m
2026-07-20 GIA141 BTJ → CGK Jul 20, 06:35 UTCJul 20, 06:55 UTC20m
2026-07-20 GIA141 BTJ → CGK Jul 20, 01:25 UTCJul 20, 05:40 UTC4h 15m
2026-07-19 GIA313 - Jul 19, 13:05 UTCJul 19, 13:20 UTC15m
2026-07-19 GIA619 - Jul 19, 07:05 UTCJul 19, 07:15 UTC10m
2026-07-19 GIA618 CGK → UPG Jul 19, 01:55 UTCJul 19, 02:15 UTC20m
2026-07-18 GIA147 BTJ → CGK Jul 18, 11:05 UTCJul 18, 11:20 UTC15m
2026-07-18 GIA147 BTJ → CGK Jul 18, 05:20 UTCJul 18, 10:35 UTC5h 15m
2026-07-18 GIA323 SUB → CGK Jul 18, 02:35 UTCJul 18, 02:45 UTC10m
2026-07-17 GIA310 - Jul 17, 07:20 UTCJul 17, 08:00 UTC40m
2026-07-17 GIA407 - Jul 17, 05:39 UTCJul 17, 05:50 UTC10m
2026-07-17 GIA402 - Jul 17, 00:20 UTCJul 17, 00:45 UTC25m
2026-07-16 GIA313 - Jul 16, 12:30 UTCJul 16, 12:40 UTC10m
2026-07-16 GIA252 - Jul 16, 07:20 UTCJul 16, 07:30 UTC10m
2026-07-16 GIA253 - Jul 16, 05:35 UTCJul 16, 05:45 UTC10m
2026-07-16 GIA304 - Jul 16, 00:15 UTCJul 16, 00:40 UTC25m
2026-07-15 GIA203 - Jul 15, 12:20 UTCJul 15, 12:30 UTC10m
2026-07-15 GIA254 - Jul 15, 05:05 UTCJul 15, 10:20 UTC5h 15m
2026-07-15 GIA202 - Jul 15, 03:05 UTCJul 15, 03:25 UTC20m
2026-07-14 GIA823 - Jul 14, 11:25 UTCJul 14, 11:40 UTC15m
2026-07-14 GIA823 - Jul 14, 10:20 UTCJul 14, 10:50 UTC30m
2026-07-13 GIA822 - Jul 13, 12:45 UTCJul 13, 13:45 UTC1h 0m
2026-07-13 GIA833 - Jul 13, 09:10 UTCJul 13, 09:25 UTC15m
2026-07-13 GIA833 - Jul 13, 08:05 UTCJul 13, 08:35 UTC30m
2026-07-13 GIA832 - Jul 13, 05:40 UTCJul 13, 06:05 UTC25m
2026-07-13 GIA825 - Jul 13, 03:01 UTCJul 13, 03:20 UTC20m
2026-07-13 GIA825 - Jul 13, 01:55 UTCJul 13, 02:25 UTC30m
2026-07-12 GIA824 - Jul 12, 23:00 UTCJul 13, 00:15 UTC1h 15m

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

Mode-S 8A0241 frequently asked

What is Mode-S code 8A0241?
8A0241 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GFH.
Where is Mode-S 8A0241 registered?
Mode-S code 8A0241 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0241 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0241, octal 42401101, decimal 9,044,545.
What flights does 8A0241 operate?
Mode-S 8A0241 has broadcast 20 distinct callsigns, including GIA863, GIA860, GIA825, GIA833, GIA824.