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sensors Mode-S transponder

8A021E

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GMM · BOEING 737-800

Hex
8A021E
Octal
42401036
Decimal
9,044,510
Country
ID
Tail
PK-GMM
Type
B738
No current signal · last broadcast Jul 26, 06:50 UTC
Flights observed
367
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 06:50 UTC

Last known position

Most recent position reported by Mode-S 8A021E.

Country allocation

The ICAO 24-bit address 8A021E 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 13 2026-06-09
GIA860 - 12 2026-06-25
GIA863 - 10 2026-06-26
GIA823 - 9 2026-06-24
GIA866 Garuda Indonesia 7 2026-06-09
GIA179 Garuda Indonesia 7 2026-07-09
GIA601 - 6 2026-07-14
GIA183 - 6 2026-07-13
GIA822 - 5 2026-06-23
GIA821 Garuda Indonesia 5 2026-07-26
GIA622 Garuda Indonesia 5 2026-06-08
GIA422 - 5 2026-07-16
GIA310 Garuda Indonesia 5 2026-07-18
GIA196 - 5 2026-07-13
GIA176 - 5 2026-07-09
GIA157 Garuda Indonesia 5 2026-05-28
GIA137 - 5 2026-07-23
GIA657 - 4 2026-07-04
GIA656 Garuda Indonesia 4 2026-07-19
GIA612 - 4 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GIA821 KUL → CGK Jul 26, 06:35 UTCJul 26, 06:50 UTC15m
2026-07-26 GIA821 KUL → CGK Jul 26, 05:05 UTCJul 26, 05:55 UTC50m
2026-07-26 GIA820 CGK → KUL Jul 26, 01:50 UTCJul 26, 03:40 UTC1h 50m
2026-07-25 GIA147 BTJ → CGK Jul 25, 11:00 UTCJul 25, 11:20 UTC20m
2026-07-25 GIA147 BTJ → CGK Jul 25, 05:55 UTCJul 25, 10:25 UTC4h 30m
2026-07-24 GIA683 SOQ → CGK Jul 24, 17:25 UTCJul 25, 02:50 UTC9h 25m
2026-07-24 GIA417 DPS → CGK Jul 24, 12:30 UTCJul 24, 12:45 UTC15m
2026-07-24 GIA410 CGK → DPS Jul 24, 08:10 UTCJul 24, 08:55 UTC45m
2026-07-24 GIA109 PLM → CGK Jul 24, 06:20 UTCJul 24, 06:40 UTC20m
2026-07-24 GIA104 CGK → PLM Jul 24, 04:00 UTCJul 24, 04:10 UTC10m
2026-07-24 GIA607 MDC → CGK Jul 24, 02:25 UTCJul 24, 02:40 UTC15m
2026-07-23 GIA165 PDG → CGK Jul 23, 10:35 UTCJul 23, 12:00 UTC1h 25m
2026-07-23 GIA162 - Jul 23, 08:00 UTCJul 23, 08:10 UTC10m
2026-07-23 GIA137 - Jul 23, 06:15 UTCJul 23, 06:30 UTC15m
2026-07-23 GIA136 - Jul 23, 03:25 UTCJul 23, 03:40 UTC15m
2026-07-22 GIA406 CGK → DPS Jul 22, 02:50 UTCJul 22, 03:35 UTC45m
2026-07-22 GIA403 - Jul 22, 01:05 UTCJul 22, 01:20 UTC15m
2026-07-21 GIA426 CGK → DPS Jul 21, 11:55 UTCJul 21, 12:20 UTC25m
2026-07-21 GIA159 BTH → CGK Jul 21, 09:50 UTCJul 21, 10:05 UTC15m
2026-07-21 GIA159 BTH → CGK Jul 21, 08:50 UTCJul 21, 09:10 UTC20m
2026-07-21 GIA156 CGK → BTH Jul 21, 06:00 UTCJul 21, 07:00 UTC1h 0m
2026-07-21 GIA303 SUB → CGK Jul 21, 04:20 UTCJul 21, 04:35 UTC15m
2026-07-21 GIA302 CGK → SUB Jul 21, 01:05 UTCJul 21, 01:45 UTC40m
2026-07-19 GIA656 CGK → DJJ Jul 19, 16:35 UTCJul 20, 07:45 UTC15h 10m
2026-07-19 GIA575 BPN → CGK Jul 19, 12:55 UTCJul 19, 13:10 UTC15m
2026-07-19 GIA149 PDG → CGK Jul 19, 03:40 UTCJul 19, 06:50 UTC3h 10m
2026-07-19 GIA148 - Jul 19, 02:50 UTCJul 19, 03:00 UTC10m
2026-07-19 GIA305 SUB → CGK Jul 19, 00:50 UTCJul 19, 01:25 UTC35m
2026-07-18 GIA310 CGK → SUB Jul 18, 07:05 UTCJul 18, 07:50 UTC45m
2026-07-18 GIA175 PKU → CGK Jul 18, 05:35 UTCJul 18, 05:50 UTC15m
2026-07-18 GIA175 PKU → CGK Jul 18, 04:30 UTCJul 18, 05:00 UTC30m
2026-07-18 GIA172 - Jul 18, 01:25 UTCJul 18, 02:29 UTC1h 5m
2026-07-17 GIA417 - Jul 17, 12:19 UTCJul 17, 12:35 UTC15m
2026-07-17 GIA410 - Jul 17, 08:04 UTCJul 17, 08:45 UTC40m
2026-07-17 GIA137 - Jul 17, 06:15 UTCJul 17, 06:29 UTC15m
2026-07-17 GIA403 - Jul 17, 01:05 UTCJul 17, 01:20 UTC15m
2026-07-16 GIA424 - Jul 16, 13:15 UTCJul 16, 13:40 UTC25m
2026-07-16 GIA419 - Jul 16, 11:40 UTCJul 16, 11:54 UTC15m
2026-07-16 GIA422 - Jul 16, 07:25 UTCJul 16, 08:05 UTC40m
2026-07-16 GIA175 - Jul 16, 04:20 UTCJul 16, 05:45 UTC1h 25m
2026-07-16 GIA172 - Jul 16, 01:45 UTCJul 16, 02:15 UTC30m
2026-07-15 GIA419 - Jul 15, 11:55 UTCJul 15, 12:10 UTC15m
2026-07-15 GIA422 - Jul 15, 07:05 UTCJul 15, 07:45 UTC40m
2026-07-15 GIA645 - Jul 15, 04:30 UTCJul 15, 04:40 UTC10m
2026-07-14 GIA601 - Jul 14, 09:35 UTCJul 14, 09:50 UTC15m
2026-07-13 GIA183 - Jul 13, 23:20 UTCJul 14, 01:15 UTC1h 55m
2026-07-13 GIA196 - Jul 13, 12:30 UTCJul 13, 14:05 UTC1h 35m
2026-07-13 GIA213 - Jul 13, 10:05 UTCJul 13, 10:55 UTC50m
2026-07-13 GIA212 - Jul 13, 08:10 UTCJul 13, 08:30 UTC20m
2026-07-13 GIA581 - Jul 13, 06:15 UTCJul 13, 06:30 UTC15m

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

Mode-S 8A021E frequently asked

What is Mode-S code 8A021E?
8A021E is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GMM.
Where is Mode-S 8A021E registered?
Mode-S code 8A021E is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A021E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 06:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A021E, octal 42401036, decimal 9,044,510.
What flights does 8A021E operate?
Mode-S 8A021E has broadcast 20 distinct callsigns, including GIA867, GIA860, GIA863, GIA823, GIA866.