Apparatus

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sensors Mode-S transponder

8990F6

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16865 · ATR-72-600

Hex
8990F6
Octal
42310366
Decimal
9,015,542
Country
TW
Tail
B-16865
Type
AT76
No current signal · last broadcast Jul 26, 10:15 UTC
Flights observed
847
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 10:15 UTC

Last known position

Most recent position reported by Mode-S 8990F6.

Country allocation

The ICAO 24-bit address 8990F6 falls within the block assigned to Taiwan (TW) by ICAO Annex 10, Volume III. Every aircraft registered in Taiwan 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
MDA343 - 20 2026-07-17
MDA339 - 20 2026-07-14
MDA332 Mandarin Airlines 20 2026-07-22
MDA304 Mandarin Airlines 20 2026-07-22
MDA303 Mandarin Airlines 20 2026-07-22
MDA344 - 19 2026-07-17
MDA340 - 19 2026-07-14
MDA331 - 19 2026-07-21
MDA7932 Mandarin Airlines 14 2026-07-22
MDA7931 - 14 2026-07-22
MDA365 - 14 2026-07-08
MDA366 - 13 2026-07-08
MDA2361 - 13 2026-07-13
MDA1273 - 13 2026-07-12
MDA346 Mandarin Airlines 12 2026-07-23
MDA345 Mandarin Airlines 12 2026-07-23
MDA335 Mandarin Airlines 12 2026-07-24
MDA333 Mandarin Airlines 12 2026-07-19
MDA308 Mandarin Airlines 12 2026-07-23
MDA307 Mandarin Airlines 12 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 MDA792 MZG → RMQ Jul 26, 09:50 UTCJul 26, 10:15 UTC25m
2026-07-26 MDA791 RMQ → MZG Jul 26, 08:25 UTCJul 26, 08:50 UTC25m
2026-07-26 MDA788 MZG → RMQ Jul 26, 07:05 UTCJul 26, 07:30 UTC25m
2026-07-26 MDA787 RMQ → MZG Jul 26, 05:50 UTCJul 26, 06:10 UTC20m
2026-07-26 MDA786 MZG → RMQ Jul 26, 04:25 UTCJul 26, 04:50 UTC25m
2026-07-26 MDA785 RMQ → MZG Jul 26, 03:00 UTCJul 26, 03:25 UTC25m
2026-07-26 MDA762 KNH → RMQ Jul 26, 01:40 UTCJul 26, 02:00 UTC20m
2026-07-25 MDA761 RMQ → KNH Jul 25, 23:25 UTCJul 25, 23:55 UTC30m
2026-07-25 MDA790 MZG → RMQ Jul 25, 08:35 UTCJul 25, 09:00 UTC25m
2026-07-25 MDA789 RMQ → MZG Jul 25, 07:20 UTCJul 25, 07:45 UTC25m
2026-07-25 MDA766 - Jul 25, 05:50 UTCJul 25, 06:20 UTC30m
2026-07-25 MDA765 - Jul 25, 03:30 UTCJul 25, 03:55 UTC25m
2026-07-25 MDA784 - Jul 25, 02:00 UTCJul 25, 02:25 UTC25m
2026-07-25 MDA783 - Jul 25, 00:45 UTCJul 25, 01:10 UTC25m
2026-07-24 MDA792 MZG → RMQ Jul 24, 09:45 UTCJul 24, 10:05 UTC20m
2026-07-24 MDA791 RMQ → MZG Jul 24, 08:20 UTCJul 24, 08:45 UTC25m
2026-07-24 MDA788 MZG → RMQ Jul 24, 06:55 UTCJul 24, 07:20 UTC25m
2026-07-24 MDA787 RMQ → MZG Jul 24, 05:45 UTCJul 24, 06:10 UTC25m
2026-07-24 MDA786 MZG → RMQ Jul 24, 04:20 UTCJul 24, 04:40 UTC20m
2026-07-24 MDA335 KHH → MZG Jul 24, 02:55 UTCJul 24, 03:20 UTC25m
2026-07-24 MDA302 KNH → KHH Jul 24, 01:40 UTCJul 24, 02:05 UTC25m
2026-07-23 MDA301 KHH → KNH Jul 23, 23:35 UTCJul 24, 00:00 UTC25m
2026-07-23 MDA346 MZG → KHH Jul 23, 10:55 UTCJul 23, 11:15 UTC20m
2026-07-23 MDA345 KHH → MZG Jul 23, 09:20 UTCJul 23, 09:40 UTC20m
2026-07-23 MDA308 KNH → KHH Jul 23, 07:35 UTCJul 23, 08:05 UTC30m
2026-07-23 MDA307 KHH → KNH Jul 23, 05:40 UTCJul 23, 06:05 UTC25m
2026-07-23 MDA336 MZG → KHH Jul 23, 04:15 UTCJul 23, 04:50 UTC35m
2026-07-23 MDA335 KHH → MZG Jul 23, 03:00 UTCJul 23, 03:30 UTC30m
2026-07-23 MDA302 KNH → KHH Jul 23, 01:25 UTCJul 23, 02:05 UTC40m
2026-07-22 MDA301 KHH → KNH Jul 22, 23:25 UTCJul 23, 00:00 UTC35m
2026-07-22 MDA7932 HUN → KHH Jul 22, 12:50 UTCJul 22, 13:20 UTC30m
2026-07-22 MDA7931 - Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 MDA304 KNH → KHH Jul 22, 04:35 UTCJul 22, 05:10 UTC35m
2026-07-22 MDA303 KHH → KNH Jul 22, 02:40 UTCJul 22, 03:20 UTC40m
2026-07-22 MDA332 MZG → KHH Jul 22, 01:20 UTCJul 22, 01:45 UTC25m
2026-07-21 MDA331 - Jul 21, 23:45 UTCJul 22, 00:20 UTC35m
2026-07-21 MDA346 MZG → KHH Jul 21, 10:55 UTCJul 21, 11:20 UTC25m
2026-07-21 MDA345 KHH → MZG Jul 21, 09:20 UTCJul 21, 09:50 UTC30m
2026-07-21 MDA308 KNH → KHH Jul 21, 07:45 UTCJul 21, 08:15 UTC30m
2026-07-21 MDA307 - Jul 21, 05:50 UTCJul 21, 06:20 UTC30m
2026-07-21 MDA336 MZG → KHH Jul 21, 04:20 UTCJul 21, 04:50 UTC30m
2026-07-21 MDA335 KHH → MZG Jul 21, 03:00 UTCJul 21, 03:30 UTC30m
2026-07-21 MDA302 KNH → KHH Jul 21, 01:45 UTCJul 21, 02:15 UTC30m
2026-07-20 MDA301 KHH → KNH Jul 20, 23:30 UTCJul 21, 00:10 UTC39m
2026-07-20 MDA346 MZG → KHH Jul 20, 11:00 UTCJul 20, 11:25 UTC25m
2026-07-20 MDA345 KHH → MZG Jul 20, 09:15 UTCJul 20, 09:45 UTC30m
2026-07-20 MDA308 KNH → KHH Jul 20, 08:00 UTCJul 20, 08:25 UTC25m
2026-07-20 MDA307 - Jul 20, 06:05 UTCJul 20, 06:30 UTC25m
2026-07-20 MDA304 KNH → KHH Jul 20, 04:35 UTCJul 20, 05:05 UTC30m
2026-07-20 MDA303 KHH → KNH Jul 20, 02:25 UTCJul 20, 02:50 UTC25m

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 B-16865 page for operator, model, and routing details .

Mode-S 8990F6 frequently asked

What is Mode-S code 8990F6?
8990F6 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16865.
Where is Mode-S 8990F6 registered?
Mode-S code 8990F6 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8990F6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 10:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8990F6, octal 42310366, decimal 9,015,542.
What flights does 8990F6 operate?
Mode-S 8990F6 has broadcast 20 distinct callsigns, including MDA343, MDA339, MDA332, MDA304, MDA303.