Apparatus

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sensors Mode-S transponder

8A0423

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to LD-1208 · GROB G-120

Hex
8A0423
Octal
42402043
Decimal
9,045,027
Country
ID
Tail
LD-1208
Type
G120
No current signal · last broadcast 5d ago
Flights observed
121
Distinct callsigns
20
Country
ID
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 8A0423.

Country allocation

The ICAO 24-bit address 8A0423 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
J936G - 10 2026-07-09
J915G - 8 2026-07-01
J937G - 6 2026-06-24
J010G - 6 2026-07-02
J990G - 5 2026-06-22
J980G - 5 2026-07-09
J922G - 5 2026-04-27
J918G - 5 2026-06-24
J976G - 4 2026-07-02
J947G - 4 2026-07-01
J867G - 4 2026-07-02
J783G - 4 2026-05-05
J032G - 4 2026-06-23
J016G - 4 2026-06-09
J999G - 3 2026-04-13
J997G - 3 2026-05-05
J979G - 3 2026-06-15
J043G - 3 2026-07-06
J033G - 3 2026-06-23
J021G - 3 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 S0858G - Jul 9, 08:55 UTCJul 9, 09:05 UTC10m
2026-07-09 J980G - Jul 9, 06:50 UTCJul 9, 07:05 UTC15m
2026-07-09 J936G - Jul 9, 03:10 UTCJul 9, 03:35 UTC25m
2026-07-08 J936G - Jul 8, 06:15 UTCJul 8, 06:35 UTC20m
2026-07-06 J043G - Jul 6, 05:35 UTCJul 6, 05:50 UTC15m
2026-07-06 J043G - Jul 6, 02:05 UTCJul 6, 02:25 UTC20m
2026-07-02 J976G - Jul 2, 08:50 UTCJul 2, 09:45 UTC55m
2026-07-02 S0709G - Jul 2, 07:15 UTCJul 2, 07:40 UTC25m
2026-07-02 J867G - Jul 2, 06:00 UTCJul 2, 06:25 UTC25m
2026-07-02 J010G - Jul 2, 03:15 UTCJul 2, 04:15 UTC1h 0m
2026-07-02 J010G - Jul 2, 01:20 UTCJul 2, 02:25 UTC1h 5m
2026-07-01 S0717G - Jul 1, 07:15 UTCJul 1, 07:45 UTC30m
2026-07-01 J915G - Jul 1, 05:35 UTCJul 1, 06:10 UTC35m
2026-07-01 J947G - Jul 1, 02:45 UTCJul 1, 03:20 UTC35m
2026-06-26 S0711G - Jun 26, 07:39 UTCJun 26, 08:05 UTC25m
2026-06-26 J935G - Jun 26, 06:09 UTCJun 26, 06:50 UTC40m
2026-06-26 J051G - Jun 26, 03:54 UTCJun 26, 04:04 UTC10m
2026-06-26 J936G - Jun 26, 00:50 UTCJun 26, 01:50 UTC1h 0m
2026-06-25 J886G - Jun 25, 07:49 UTCJun 25, 08:50 UTC1h 0m
2026-06-25 J044G - Jun 25, 05:44 UTCJun 25, 05:55 UTC10m
2026-06-24 J043G - Jun 24, 07:40 UTCJun 24, 07:50 UTC10m
2026-06-24 J918G - Jun 24, 04:44 UTCJun 24, 05:05 UTC20m
2026-06-24 J937G - Jun 24, 03:19 UTCJun 24, 03:40 UTC20m
2026-06-24 J937G - Jun 24, 01:30 UTCJun 24, 01:49 UTC20m
2026-06-23 J032G - Jun 23, 08:04 UTCJun 23, 08:54 UTC50m
2026-06-23 J033G - Jun 23, 06:19 UTCJun 23, 07:05 UTC45m
2026-06-23 J936G - Jun 23, 03:54 UTCJun 23, 04:39 UTC45m
2026-06-23 J936G - Jun 23, 01:50 UTCJun 23, 02:29 UTC40m
2026-06-22 J990G - Jun 22, 09:00 UTCJun 22, 09:30 UTC30m
2026-06-22 J990G - Jun 22, 07:19 UTCJun 22, 07:40 UTC20m
2026-06-22 J915G - Jun 22, 05:49 UTCJun 22, 06:19 UTC30m
2026-06-22 J911G - Jun 22, 01:19 UTCJun 22, 01:49 UTC30m
2026-06-19 J041G - Jun 19, 03:55 UTCJun 19, 04:10 UTC15m
2026-06-19 J910G - Jun 19, 02:19 UTCJun 19, 02:35 UTC15m
2026-06-19 J990G - Jun 19, 01:15 UTCJun 19, 01:34 UTC20m
2026-06-18 J867G - Jun 18, 05:45 UTCJun 18, 06:15 UTC30m
2026-06-18 J010G - Jun 18, 04:15 UTCJun 18, 04:35 UTC20m
2026-06-18 J976G - Jun 18, 01:40 UTCJun 18, 02:45 UTC1h 5m
2026-06-17 J915G - Jun 17, 05:40 UTCJun 17, 06:35 UTC55m
2026-06-17 J915G - Jun 17, 04:15 UTCJun 17, 04:35 UTC20m
2026-06-17 J044G - Jun 17, 02:05 UTCJun 17, 02:25 UTC20m
2026-06-15 J979G - Jun 15, 05:35 UTCJun 15, 06:00 UTC25m
2026-06-15 J018G - Jun 15, 03:10 UTCJun 15, 03:35 UTC25m
2026-06-15 J056G - Jun 15, 01:59 UTCJun 15, 02:10 UTC10m
2026-06-12 J936G - Jun 12, 07:45 UTCJun 12, 08:20 UTC35m
2026-06-12 J032G - Jun 12, 02:35 UTCJun 12, 03:00 UTC25m
2026-06-12 J947G - Jun 12, 01:25 UTCJun 12, 01:50 UTC25m
2026-06-11 J010G - Jun 11, 04:15 UTCJun 11, 04:25 UTC10m
2026-06-10 J010G - Jun 10, 03:20 UTCJun 10, 03:30 UTC10m
2026-06-10 J947G - Jun 10, 01:00 UTCJun 10, 01:40 UTC40m

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 LD-1208 page for operator, model, and routing details .

Mode-S 8A0423 frequently asked

What is Mode-S code 8A0423?
8A0423 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to LD-1208.
Where is Mode-S 8A0423 registered?
Mode-S code 8A0423 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0423 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0423, octal 42402043, decimal 9,045,027.
What flights does 8A0423 operate?
Mode-S 8A0423 has broadcast 20 distinct callsigns, including J936G, J915G, J937G, J010G, J990G.