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sensors Mode-S transponder

8A05AC

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GHA · AIRBUS A-330-300

Hex
8A05AC
Octal
42402654
Decimal
9,045,420
Country
ID
Tail
PK-GHA
Type
A333
Broadcasting now · callsign GIA879 · 36,000 ft
Flights observed
258
Distinct callsigns
20
Country
ID
Last broadcast
1h ago

Current position

8A05AC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 8A05AC 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
GIA879 - 52 2026-07-14
GIA878 - 46 2026-07-13
GIA875 - 36 2026-06-29
GIA874 Garuda Indonesia 30 2026-06-28
GIA895 - 21 2026-07-10
GIA894 - 18 2026-07-09
GIA712 - 8 2026-07-01
GIA983 Garuda Indonesia 7 2026-06-07
GIA713 - 7 2026-07-02
GIA961 Garuda Indonesia 6 2026-06-14
GIA960 Garuda Indonesia 4 2026-06-13
GIA982 Garuda Indonesia 3 2026-06-07
GIA716 - 3 2026-06-19
GIA981 Garuda Indonesia 2 2026-06-09
GIA980 Garuda Indonesia 2 2026-06-09
GIA833 - 2 2026-06-21
GIA719 - 2 2026-06-25
GIA718 Garuda Indonesia 2 2026-06-25
GIA717 - 2 2026-06-19
GIA991 Garuda Indonesia 1 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 GIA879 - Jul 14, 01:50 UTCJul 14, 02:25 UTC35m
2026-07-13 GIA878 - Jul 13, 18:15 UTCJul 13, 23:40 UTC5h 25m
2026-07-13 GIA878 - Jul 13, 16:25 UTCJul 13, 16:35 UTC10m
2026-07-13 GIA879 - Jul 13, 07:55 UTCJul 13, 08:15 UTC20m
2026-07-13 GIA879 - Jul 13, 01:55 UTCJul 13, 06:40 UTC4h 45m
2026-07-12 GIA878 - Jul 12, 18:15 UTCJul 12, 23:30 UTC5h 15m
2026-07-12 GIA879 - Jul 12, 08:01 UTCJul 12, 08:15 UTC15m
2026-07-12 GIA879 - Jul 12, 01:40 UTCJul 12, 06:30 UTC4h 50m
2026-07-11 GIA878 - Jul 11, 18:05 UTCJul 11, 23:20 UTC5h 15m
2026-07-10 GIA895 - Jul 10, 08:25 UTCJul 10, 08:40 UTC15m
2026-07-09 GIA894 - Jul 9, 17:05 UTCJul 10, 07:00 UTC13h 55m
2026-07-09 GIA895 - Jul 9, 10:10 UTCJul 9, 10:20 UTC10m
2026-07-09 GIA895 - Jul 9, 05:15 UTCJul 9, 08:45 UTC3h 30m
2026-07-08 GIA894 - Jul 8, 17:10 UTCJul 8, 22:45 UTC5h 35m
2026-07-08 GIA895 - Jul 8, 08:20 UTCJul 8, 08:35 UTC15m
2026-07-07 GIA894 CGK → PVG Jul 7, 17:25 UTCJul 8, 06:55 UTC13h 30m
2026-07-07 GIA895 - Jul 7, 08:40 UTCJul 7, 08:55 UTC15m
2026-07-06 GIA894 CGK → PVG Jul 6, 17:10 UTCJul 7, 07:05 UTC13h 55m
2026-07-06 GIA895 - Jul 6, 08:10 UTCJul 6, 08:30 UTC20m
2026-07-05 GIA894 CGK → PVG Jul 5, 17:05 UTCJul 6, 06:45 UTC13h 40m
2026-07-05 GIA895 - Jul 5, 08:00 UTCJul 5, 08:15 UTC15m
2026-07-04 GIA894 CGK → PVG Jul 4, 17:20 UTCJul 5, 06:30 UTC13h 10m
2026-07-04 GIA895 - Jul 4, 08:30 UTCJul 4, 08:45 UTC15m
2026-07-03 GIA894 CGK → PVG Jul 3, 19:20 UTCJul 4, 07:00 UTC11h 40m
2026-07-02 GIA713 - Jul 2, 02:00 UTCJul 2, 10:30 UTC8h 30m
2026-07-01 GIA712 - Jul 1, 17:10 UTCJul 1, 23:10 UTC6h 0m
2026-06-30 GIA895 - Jun 30, 08:45 UTCJun 30, 09:05 UTC20m
2026-06-29 GIA894 CGK → PVG Jun 29, 17:05 UTCJun 30, 07:25 UTC14h 20m
2026-06-29 GIA875 - Jun 29, 10:29 UTCJun 29, 10:44 UTC15m
2026-06-29 GIA875 - Jun 29, 03:14 UTCJun 29, 09:00 UTC5h 45m
2026-06-28 GIA874 CGK → HND Jun 28, 18:29 UTCJun 29, 00:05 UTC5h 35m
2026-06-28 GIA879 - Jun 28, 08:00 UTCJun 28, 08:19 UTC20m
2026-06-28 GIA879 - Jun 28, 01:55 UTCJun 28, 06:40 UTC4h 45m
2026-06-27 GIA878 CGK → ICN Jun 27, 18:20 UTCJun 27, 23:29 UTC5h 10m
2026-06-27 GIA875 - Jun 27, 10:29 UTCJun 27, 10:45 UTC15m
2026-06-27 GIA875 - Jun 27, 03:30 UTCJun 27, 09:00 UTC5h 30m
2026-06-26 GIA874 CGK → HND Jun 26, 18:49 UTCJun 27, 00:39 UTC5h 50m
2026-06-25 GIA719 - Jun 25, 21:50 UTCJun 26, 15:29 UTC17h 40m
2026-06-25 GIA718 DPS → MEL Jun 25, 11:10 UTCJun 25, 19:49 UTC8h 40m
2026-06-24 GIA713 - Jun 24, 02:20 UTCJun 24, 10:14 UTC7h 55m
2026-06-23 GIA712 - Jun 23, 17:04 UTCJun 23, 23:19 UTC6h 15m
2026-06-23 GIA879 - Jun 23, 08:00 UTCJun 23, 08:20 UTC20m
2026-06-23 GIA879 - Jun 23, 01:45 UTCJun 23, 06:39 UTC4h 55m
2026-06-22 GIA878 CGK → ICN Jun 22, 18:15 UTCJun 22, 23:29 UTC5h 15m
2026-06-22 GIA878 CGK → ICN Jun 22, 16:34 UTCJun 22, 16:45 UTC10m
2026-06-22 GIA879 - Jun 22, 08:04 UTCJun 22, 08:19 UTC15m
2026-06-22 GIA879 - Jun 22, 01:44 UTCJun 22, 06:45 UTC5h 0m
2026-06-21 GIA878 CGK → ICN Jun 21, 18:10 UTCJun 21, 23:10 UTC5h 0m
2026-06-21 GIA878 CGK → ICN Jun 21, 16:30 UTCJun 21, 16:39 UTC10m
2026-06-21 GIA833 - Jun 21, 09:15 UTCJun 21, 09:29 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-GHA page for operator, model, and routing details .

Mode-S 8A05AC frequently asked

What is Mode-S code 8A05AC?
8A05AC is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GHA.
Where is Mode-S 8A05AC registered?
Mode-S code 8A05AC is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A05AC broadcasting right now?
Yes. Mode-S 8A05AC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A05AC, octal 42402654, decimal 9,045,420.
What flights does 8A05AC operate?
Mode-S 8A05AC has broadcast 20 distinct callsigns, including GIA879, GIA878, GIA875, GIA874, GIA895.