sensors Mode-S transponder

8990CA

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-58509 · AIRBUS A-350-900

Hex
8990CA
Octal
42310312
Decimal
9,015,498
Country
TW
Tail
B-58509
Type
A359
No current signal · last broadcast Jul 26, 08:00 UTC
Flights observed
279
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 08:00 UTC

Last known position

Most recent position reported by Mode-S 8990CA.

Country allocation

The ICAO 24-bit address 8990CA 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
SJX010 STARLUX Airlines 26 2026-07-24
SJX009 - 23 2026-07-25
SJX002 - 18 2026-06-19
SJX001 - 16 2026-06-20
SJX823 STARLUX Airlines 15 2026-07-24
SJX742 STARLUX Airlines 15 2026-07-23
SJX741 STARLUX Airlines 15 2026-07-23
SJX032 - 14 2026-07-18
SJX031 STARLUX Airlines 14 2026-07-19
SJX851 STARLUX Airlines 12 2026-07-21
SJX822 STARLUX Airlines 12 2026-07-24
SJX850 STARLUX Airlines 10 2026-07-21
SJX012 STARLUX Airlines 9 2026-07-21
SJX011 STARLUX Airlines 8 2026-07-22
SJX871 - 6 2026-07-14
SJX870 - 6 2026-07-14
SJX841 STARLUX Airlines 6 2026-07-26
SJX840 STARLUX Airlines 6 2026-07-26
SJX026 STARLUX Airlines 6 2026-06-21
SJX025 - 6 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SJX841 FUK → TPE Jul 26, 07:35 UTCJul 26, 08:00 UTC25m
2026-07-26 SJX841 FUK → TPE Jul 26, 06:20 UTCJul 26, 06:35 UTC16m
2026-07-26 SJX840 TPE → FUK Jul 26, 03:05 UTCJul 26, 03:40 UTC35m
2026-07-26 SJX840 TPE → FUK Jul 26, 01:45 UTCJul 26, 02:05 UTC20m
2026-07-25 SJX009 - Jul 25, 19:35 UTCJul 25, 19:50 UTC15m
2026-07-25 SJX009 - Jul 25, 07:15 UTCJul 25, 18:15 UTC11h 0m
2026-07-24 SJX010 TPE → ONT Jul 24, 14:50 UTCJul 25, 01:20 UTC10h 30m
2026-07-24 SJX010 TPE → ONT Jul 24, 13:20 UTCJul 24, 13:35 UTC15m
2026-07-24 SJX823 KIX → TPE Jul 24, 08:20 UTCJul 24, 08:45 UTC25m
2026-07-24 SJX823 KIX → TPE Jul 24, 06:25 UTCJul 24, 07:05 UTC40m
2026-07-24 SJX822 TPE → KIX Jul 24, 04:10 UTCJul 24, 04:55 UTC45m
2026-07-24 SJX822 TPE → KIX Jul 24, 02:40 UTCJul 24, 02:55 UTC15m
2026-07-23 SJX742 BKK → TPE Jul 23, 06:35 UTCJul 23, 09:55 UTC3h 20m
2026-07-23 SJX741 TPE → BKK Jul 23, 01:25 UTCJul 23, 04:35 UTC3h 10m
2026-07-22 SJX011 SFO → TPE Jul 22, 19:45 UTCJul 22, 20:00 UTC15m
2026-07-22 SJX011 SFO → TPE Jul 22, 18:55 UTCJul 22, 19:05 UTC10m
2026-07-21 SJX012 TPE → SFO Jul 21, 18:10 UTCJul 22, 04:30 UTC10h 20m
2026-07-21 SJX012 TPE → SFO Jul 21, 16:35 UTCJul 21, 16:50 UTC15m
2026-07-21 SJX851 CTS → TPE Jul 21, 11:30 UTCJul 21, 11:45 UTC15m
2026-07-21 SJX851 CTS → TPE Jul 21, 08:15 UTCJul 21, 10:10 UTC1h 55m
2026-07-21 SJX850 TPE → CTS Jul 21, 03:55 UTCJul 21, 05:45 UTC1h 50m
2026-07-21 SJX850 TPE → CTS Jul 21, 02:20 UTCJul 21, 02:40 UTC20m
2026-07-20 SJX841 FUK → TPE Jul 20, 07:10 UTCJul 20, 07:35 UTC25m
2026-07-20 SJX841 FUK → TPE Jul 20, 05:50 UTCJul 20, 06:10 UTC20m
2026-07-20 SJX840 TPE → FUK Jul 20, 03:10 UTCJul 20, 03:25 UTC15m
2026-07-20 SJX840 TPE → FUK Jul 20, 01:50 UTCJul 20, 02:15 UTC25m
2026-07-19 SJX031 SEA → TPE Jul 19, 08:30 UTCJul 19, 19:50 UTC11h 20m
2026-07-18 SJX032 - Jul 18, 14:25 UTCJul 18, 23:50 UTC9h 25m
2026-07-18 SJX032 - Jul 18, 12:50 UTCJul 18, 13:00 UTC10m
2026-07-18 SJX841 - Jul 18, 07:05 UTCJul 18, 07:20 UTC15m
2026-07-18 SJX841 - Jul 18, 05:40 UTCJul 18, 06:05 UTC25m
2026-07-18 SJX840 TPE → FUK Jul 18, 03:35 UTCJul 18, 03:50 UTC15m
2026-07-18 SJX840 TPE → FUK Jul 18, 02:14 UTCJul 18, 02:19 UTC5m
2026-07-17 SJX031 - Jul 17, 19:25 UTCJul 17, 19:49 UTC25m
2026-07-17 SJX031 - Jul 17, 08:40 UTCJul 17, 18:25 UTC9h 45m
2026-07-16 SJX032 - Jul 16, 14:25 UTCJul 17, 00:04 UTC9h 40m
2026-07-16 SJX032 - Jul 16, 12:44 UTCJul 16, 12:55 UTC10m
2026-07-16 SJX742 - Jul 16, 06:35 UTCJul 16, 10:00 UTC3h 25m
2026-07-16 SJX741 - Jul 16, 04:35 UTCJul 16, 04:50 UTC15m
2026-07-16 SJX741 - Jul 16, 01:50 UTCJul 16, 02:40 UTC50m
2026-07-15 SJX011 SFO → TPE Jul 15, 08:10 UTCJul 15, 20:10 UTC12h 0m
2026-07-14 SJX012 TPE → SFO Jul 14, 16:50 UTCJul 15, 04:50 UTC11h 59m
2026-07-14 SJX871 - Jul 14, 07:45 UTCJul 14, 08:50 UTC1h 5m
2026-07-14 SJX870 - Jul 14, 04:25 UTCJul 14, 04:50 UTC25m
2026-07-11 SJX3206 - Jul 11, 23:05 UTCJul 12, 00:30 UTC1h 25m
2026-07-10 SJX205 - Jul 10, 13:10 UTCJul 10, 14:15 UTC1h 5m
2026-07-10 SJX823 - Jul 10, 11:20 UTCJul 10, 11:45 UTC25m
2026-07-10 SJX823 - Jul 10, 09:25 UTCJul 10, 10:05 UTC40m
2026-07-10 SJX822 TPE → KIX Jul 10, 05:30 UTCJul 10, 07:45 UTC2h 15m
2026-07-09 SJX009 - Jul 9, 19:45 UTCJul 9, 20:05 UTC20m

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-58509 page for operator, model, and routing details .

Mode-S 8990CA frequently asked

What is Mode-S code 8990CA?
8990CA is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-58509.
Where is Mode-S 8990CA registered?
Mode-S code 8990CA is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8990CA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 08:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8990CA, octal 42310312, decimal 9,015,498.
What flights does 8990CA operate?
Mode-S 8990CA has broadcast 20 distinct callsigns, including SJX010, SJX009, SJX002, SJX001, SJX823.