Apparatus

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sensors Mode-S transponder

8990BB

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-58202 · AIRBUS A-321neo

Hex
8990BB
Octal
42310273
Decimal
9,015,483
Country
TW
Tail
B-58202
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
282
Distinct callsigns
20
Country
TW
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 8990BB.

Country allocation

The ICAO 24-bit address 8990BB 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
SJX332 - 12 2026-07-02
SJX307 - 10 2026-07-07
SJX751 - 9 2026-06-27
SJX805 - 8 2026-06-19
SJX306 - 8 2026-07-10
SJX303 - 8 2026-07-09
SJX302 - 8 2026-07-09
SJX752 - 7 2026-06-27
SJX313 - 7 2026-07-07
SJX312 - 7 2026-07-07
SJX233 - 7 2026-06-21
SJX861 STARLUX Airlines 6 2026-05-20
SJX804 - 6 2026-06-19
SJX716 - 6 2026-06-30
SJX331 STARLUX Airlines 6 2026-06-08
SJX234 - 6 2026-06-21
SJX860 STARLUX Airlines 5 2026-05-20
SJX835 - 5 2026-07-02
SJX790 - 5 2026-06-27
SJX789 - 5 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SJX314 - Jul 14, 01:40 UTCJul 14, 04:45 UTC3h 5m
2026-07-13 SJX315 NRT → RMQ Jul 13, 07:10 UTCJul 13, 10:10 UTC3h 0m
2026-07-13 SJX314 RMQ → NRT Jul 13, 01:40 UTCJul 13, 04:45 UTC3h 5m
2026-07-12 SJX301 - Jul 12, 08:25 UTCJul 12, 10:35 UTC2h 10m
2026-07-12 SJX300 - Jul 12, 04:45 UTCJul 12, 07:01 UTC2h 15m
2026-07-12 SJX3307 - Jul 12, 02:35 UTCJul 12, 03:05 UTC30m
2026-07-12 SJX3307 UKB → KOJ Jul 12, 00:50 UTCJul 12, 01:30 UTC40m
2026-07-10 SJX306 - Jul 10, 01:05 UTCJul 10, 03:25 UTC2h 20m
2026-07-09 SJX303 - Jul 9, 08:15 UTCJul 9, 09:15 UTC1h 0m
2026-07-09 SJX302 - Jul 9, 05:25 UTCJul 9, 05:50 UTC25m
2026-07-08 SJX303 - Jul 8, 07:55 UTCJul 8, 08:55 UTC1h 0m
2026-07-08 SJX302 - Jul 8, 05:10 UTCJul 8, 05:40 UTC30m
2026-07-08 SJX309 - Jul 8, 01:55 UTCJul 8, 02:25 UTC30m
2026-07-07 SJX308 RMQ → SHI Jul 7, 23:25 UTCJul 7, 23:50 UTC25m
2026-07-07 SJX313 - Jul 7, 11:20 UTCJul 7, 12:25 UTC1h 5m
2026-07-07 SJX312 - Jul 7, 08:50 UTCJul 7, 09:20 UTC30m
2026-07-07 SJX307 - Jul 7, 06:30 UTCJul 7, 07:00 UTC30m
2026-07-07 SJX307 - Jul 7, 04:40 UTCJul 7, 05:20 UTC40m
2026-07-07 SJX306 - Jul 7, 00:55 UTCJul 7, 03:20 UTC2h 25m
2026-07-06 SJX313 - Jul 6, 11:20 UTCJul 6, 12:15 UTC55m
2026-07-06 SJX312 - Jul 6, 08:40 UTCJul 6, 09:50 UTC1h 10m
2026-07-06 SJX307 - Jul 6, 06:35 UTCJul 6, 07:00 UTC25m
2026-07-06 SJX307 - Jul 6, 04:40 UTCJul 6, 05:20 UTC40m
2026-07-06 SJX306 - Jul 6, 00:55 UTCJul 6, 03:10 UTC2h 15m
2026-07-05 SJX313 - Jul 5, 11:55 UTCJul 5, 12:30 UTC35m
2026-07-05 SJX312 - Jul 5, 08:55 UTCJul 5, 10:00 UTC1h 5m
2026-07-05 SJX307 - Jul 5, 04:45 UTCJul 5, 07:00 UTC2h 15m
2026-07-05 SJX306 - Jul 5, 01:05 UTCJul 5, 03:30 UTC2h 25m
2026-07-04 SJX303 - Jul 4, 08:10 UTCJul 4, 09:10 UTC1h 0m
2026-07-04 SJX302 - Jul 4, 06:20 UTCJul 4, 06:30 UTC10m
2026-07-04 SJX302 - Jul 4, 05:20 UTCJul 4, 05:50 UTC30m
2026-07-03 SJX317 - Jul 3, 12:05 UTCJul 3, 12:35 UTC30m
2026-07-03 SJX316 - Jul 3, 07:15 UTCJul 3, 07:35 UTC20m
2026-07-03 SJX311 - Jul 3, 03:45 UTCJul 3, 05:40 UTC1h 55m
2026-07-03 SJX310 - Jul 3, 00:20 UTCJul 3, 02:10 UTC1h 50m
2026-07-02 SJX332 - Jul 2, 12:10 UTCJul 2, 12:25 UTC15m
2026-07-02 SJX332 - Jul 2, 11:20 UTCJul 2, 11:35 UTC15m
2026-07-02 SJX205 - Jul 2, 08:15 UTCJul 2, 09:20 UTC1h 5m
2026-07-02 SJX835 UKB → TPE Jul 2, 03:05 UTCJul 2, 05:35 UTC2h 30m
2026-07-01 SJX834 TPE → UKB Jul 1, 22:55 UTCJul 2, 01:15 UTC2h 20m
2026-07-01 SJX706 TPE → TPE Jul 1, 07:20 UTCJul 1, 15:40 UTC8h 20m
2026-07-01 SJX901 PUS → TPE Jul 1, 03:45 UTCJul 1, 05:55 UTC2h 10m
2026-07-01 SJX900 TPE → PUS Jul 1, 00:45 UTCJul 1, 02:30 UTC1h 45m
2026-06-30 SJX716 - Jun 30, 06:35 UTCJun 30, 07:00 UTC25m
2026-06-30 SJX716 - Jun 30, 04:40 UTCJun 30, 05:55 UTC1h 15m
2026-06-30 SJX715 - Jun 30, 00:39 UTCJun 30, 03:00 UTC2h 21m
2026-06-29 SJX716 - Jun 29, 06:54 UTCJun 29, 07:20 UTC25m
2026-06-29 SJX716 - Jun 29, 04:55 UTCJun 29, 06:19 UTC1h 25m
2026-06-29 SJX715 - Jun 29, 00:44 UTCJun 29, 03:14 UTC2h 30m
2026-06-28 SJX704 - Jun 28, 08:05 UTCJun 28, 14:34 UTC6h 30m

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-58202 page for operator, model, and routing details .

Mode-S 8990BB frequently asked

What is Mode-S code 8990BB?
8990BB is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-58202.
Where is Mode-S 8990BB registered?
Mode-S code 8990BB is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8990BB broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8990BB, octal 42310273, decimal 9,015,483.
What flights does 8990BB operate?
Mode-S 8990BB has broadcast 20 distinct callsigns, including SJX332, SJX307, SJX751, SJX805, SJX306.