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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 8h ago
Flights observed
323
Distinct callsigns
20
Country
ID
Last broadcast
8h ago

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
GIA622 Garuda Indonesia 5 2026-06-08
GIA196 - 5 2026-07-13
GIA176 - 5 2026-07-09
GIA157 Garuda Indonesia 5 2026-05-28
GIA657 - 4 2026-07-04
GIA612 - 4 2026-06-19
GIA404 - 4 2026-06-19
GIA310 - 4 2026-07-07
GIA246 - 4 2026-07-06
GIA193 Garuda Indonesia 4 2026-07-04
GIA843 - 3 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-12 GIA203 - Jul 12, 11:50 UTCJul 12, 12:25 UTC35m
2026-07-12 GIA619 - Jul 12, 07:10 UTCJul 12, 07:25 UTC15m
2026-07-12 GIA618 - Jul 12, 01:55 UTCJul 12, 02:30 UTC35m
2026-07-11 GIA575 - Jul 11, 12:40 UTCJul 11, 13:00 UTC20m
2026-07-11 GIA155 - Jul 11, 06:35 UTCJul 11, 06:55 UTC20m
2026-07-11 GIA152 - Jul 11, 03:40 UTCJul 11, 05:50 UTC2h 10m
2026-07-11 GIA305 - Jul 11, 01:00 UTCJul 11, 01:25 UTC25m
2026-07-10 GIA326 - Jul 10, 10:55 UTCJul 10, 11:40 UTC45m
2026-07-10 GIA653 - Jul 10, 09:00 UTCJul 10, 09:15 UTC15m
2026-07-09 GIA652 CGK → DPS Jul 9, 14:45 UTCJul 9, 15:10 UTC25m
2026-07-09 GIA179 PKU → CGK Jul 9, 12:20 UTCJul 9, 12:35 UTC15m
2026-07-09 GIA179 PKU → CGK Jul 9, 11:10 UTCJul 9, 11:40 UTC30m
2026-07-09 GIA176 - Jul 9, 08:30 UTCJul 9, 09:45 UTC1h 15m
2026-07-09 GIA137 - Jul 9, 06:45 UTCJul 9, 07:05 UTC20m
2026-07-09 GIA617 - Jul 9, 01:10 UTCJul 9, 01:25 UTC15m
2026-07-08 GIA616 - Jul 8, 10:10 UTCJul 8, 10:35 UTC25m
2026-07-08 GIA187 - Jul 8, 02:55 UTCJul 8, 08:10 UTC5h 15m
2026-07-07 GIA183 - Jul 7, 23:25 UTCJul 8, 01:10 UTC1h 45m
2026-07-07 GIA196 CGK → KNO Jul 7, 12:30 UTCJul 7, 14:10 UTC1h 40m
2026-07-07 GIA310 - Jul 7, 07:45 UTCJul 7, 11:05 UTC3h 20m
2026-07-07 GIA127 - Jul 7, 05:25 UTCJul 7, 05:40 UTC15m
2026-07-07 GIA126 - Jul 7, 02:30 UTCJul 7, 03:25 UTC55m
2026-07-06 GIA246 - Jul 6, 10:55 UTCJul 6, 11:20 UTC25m
2026-07-06 GIA317 - Jul 6, 08:55 UTCJul 6, 09:10 UTC15m
2026-07-06 GIA535 - Jul 6, 03:50 UTCJul 6, 04:05 UTC15m
2026-07-05 GIA453 - Jul 5, 07:20 UTCJul 5, 12:25 UTC5h 5m
2026-07-05 GIA175 - Jul 5, 04:10 UTCJul 5, 05:40 UTC1h 30m
2026-07-05 GIA172 - Jul 5, 02:05 UTCJul 5, 02:35 UTC30m
2026-07-04 GIA193 KNO → CGK Jul 4, 15:15 UTCJul 4, 15:30 UTC15m
2026-07-04 GIA193 KNO → CGK Jul 4, 10:55 UTCJul 4, 14:45 UTC3h 50m
2026-07-04 GIA657 - Jul 4, 07:30 UTCJul 4, 07:40 UTC10m
2026-07-03 GIA656 CGK → DJJ Jul 3, 16:45 UTCJul 3, 17:05 UTC20m
2026-07-03 GIA899 - Jul 3, 14:50 UTCJul 3, 15:00 UTC10m
2026-07-03 GIA899 - Jul 3, 10:30 UTCJul 3, 13:15 UTC2h 45m
2026-07-03 GIA898 - Jul 3, 03:15 UTCJul 3, 03:55 UTC40m
2026-07-02 GIA193 KNO → CGK Jul 2, 13:25 UTCJul 2, 15:20 UTC1h 55m
2026-07-02 GIA190 - Jul 2, 10:00 UTCJul 2, 11:40 UTC1h 40m
2026-07-02 GIA187 - Jul 2, 02:55 UTCJul 2, 08:10 UTC5h 15m
2026-07-02 GIA183 - Jul 2, 01:00 UTCJul 2, 01:10 UTC10m
2026-07-01 GIA183 - Jul 1, 23:25 UTCJul 2, 00:20 UTC55m
2026-07-01 GIA196 CGK → KNO Jul 1, 13:00 UTCJul 1, 14:25 UTC1h 25m
2026-07-01 GIA422 - Jul 1, 07:05 UTCJul 1, 11:25 UTC4h 20m
2026-07-01 GIA610 - Jul 1, 00:20 UTCJul 1, 05:30 UTC5h 10m
2026-06-30 GIA647 - Jun 30, 10:15 UTCJun 30, 10:25 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-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 8h ago.
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.