Apparatus

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sensors Mode-S transponder

8990C0

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-58506 · AIRBUS A-350-900

Hex
8990C0
Octal
42310300
Decimal
9,015,488
Country
TW
Tail
B-58506
Type
A359
No current signal · last broadcast Jul 26, 20:05 UTC
Flights observed
284
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 20:05 UTC

Last known position

Most recent position reported by Mode-S 8990C0.

Country allocation

The ICAO 24-bit address 8990C0 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
SJX002 - 24 2026-07-12
SJX001 - 23 2026-07-13
SJX031 STARLUX Airlines 20 2026-07-24
SJX032 STARLUX Airlines 17 2026-07-23
SJX851 - 15 2026-07-05
SJX850 - 15 2026-07-05
SJX823 - 15 2026-07-17
SJX011 - 15 2026-06-17
SJX025 - 14 2026-06-24
SJX012 - 14 2026-06-16
SJX772 - 12 2026-07-07
SJX822 STARLUX Airlines 11 2026-07-22
SJX771 - 11 2026-07-07
SJX026 STARLUX Airlines 11 2026-06-23
SJX742 STARLUX Airlines 10 2026-07-25
SJX741 STARLUX Airlines 9 2026-07-25
SJX871 STARLUX Airlines 6 2026-07-23
SJX010 STARLUX Airlines 5 2026-07-25
SJX870 STARLUX Airlines 4 2026-07-23
SJX841 - 4 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SJX009 POC → TPE Jul 26, 07:15 UTCJul 26, 20:05 UTC12h 50m
2026-07-25 SJX010 TPE → ONT Jul 25, 14:00 UTCJul 26, 00:35 UTC10h 35m
2026-07-25 SJX010 TPE → ONT Jul 25, 12:25 UTCJul 25, 12:40 UTC15m
2026-07-25 SJX742 BKK → TPE Jul 25, 06:55 UTCJul 25, 10:10 UTC3h 15m
2026-07-25 SJX741 TPE → BKK Jul 25, 01:45 UTCJul 25, 04:45 UTC3h 0m
2026-07-24 SJX031 SEA → TPE Jul 24, 19:50 UTCJul 24, 20:15 UTC25m
2026-07-24 SJX031 SEA → TPE Jul 24, 08:45 UTCJul 24, 18:35 UTC9h 50m
2026-07-23 SJX032 TPE → SEA Jul 23, 14:00 UTCJul 23, 23:10 UTC9h 10m
2026-07-23 SJX032 TPE → SEA Jul 23, 12:30 UTCJul 23, 12:45 UTC15m
2026-07-23 SJX871 OKA → TPE Jul 23, 07:55 UTCJul 23, 08:10 UTC15m
2026-07-23 SJX870 TPE → OKA Jul 23, 04:20 UTCJul 23, 04:35 UTC15m
2026-07-22 SJX822 TPE → KIX Jul 22, 04:30 UTCJul 22, 05:05 UTC35m
2026-07-22 SJX822 TPE → KIX Jul 22, 02:50 UTCJul 22, 03:10 UTC20m
2026-07-21 SJX009 - Jul 21, 19:35 UTCJul 21, 19:50 UTC15m
2026-07-21 SJX009 - Jul 21, 07:05 UTCJul 21, 19:00 UTC11h 55m
2026-07-20 SJX010 TPE → ONT Jul 20, 12:35 UTCJul 21, 01:05 UTC12h 29m
2026-07-20 SJX742 BKK → TPE Jul 20, 08:40 UTCJul 20, 09:50 UTC1h 10m
2026-07-20 SJX742 BKK → TPE Jul 20, 06:30 UTCJul 20, 06:45 UTC15m
2026-07-20 SJX741 TPE → BKK Jul 20, 04:10 UTCJul 20, 04:25 UTC15m
2026-07-20 SJX741 TPE → BKK Jul 20, 01:25 UTCJul 20, 02:15 UTC50m
2026-07-19 SJX841 - Jul 19, 07:10 UTCJul 19, 07:30 UTC20m
2026-07-19 SJX841 - Jul 19, 05:45 UTCJul 19, 06:05 UTC20m
2026-07-19 SJX840 TPE → FUK Jul 19, 03:30 UTCJul 19, 03:45 UTC15m
2026-07-19 SJX840 TPE → FUK Jul 19, 02:05 UTCJul 19, 02:35 UTC30m
2026-07-18 SJX031 SEA → TPE Jul 18, 19:50 UTCJul 18, 20:00 UTC10m
2026-07-18 SJX031 SEA → TPE Jul 18, 08:40 UTCJul 18, 18:35 UTC9h 55m
2026-07-17 SJX032 TPE → SEA Jul 17, 12:30 UTCJul 17, 23:30 UTC11h 0m
2026-07-17 SJX823 - Jul 17, 08:30 UTCJul 17, 08:54 UTC25m
2026-07-17 SJX823 - Jul 17, 06:50 UTCJul 17, 07:25 UTC35m
2026-07-17 SJX822 TPE → KIX Jul 17, 02:39 UTCJul 17, 04:54 UTC2h 15m
2026-07-16 SJX841 - Jul 16, 07:00 UTCJul 16, 07:15 UTC15m
2026-07-16 SJX841 - Jul 16, 05:35 UTCJul 16, 05:45 UTC10m
2026-07-16 SJX840 - Jul 16, 03:10 UTCJul 16, 03:40 UTC30m
2026-07-16 SJX840 - Jul 16, 01:55 UTCJul 16, 02:10 UTC15m
2026-07-15 SJX031 - Jul 15, 19:25 UTCJul 15, 19:50 UTC25m
2026-07-15 SJX031 - Jul 15, 08:25 UTCJul 15, 18:15 UTC9h 50m
2026-07-14 SJX032 TPE → SEA Jul 14, 12:35 UTCJul 15, 00:05 UTC11h 29m
2026-07-14 SJX742 - Jul 14, 09:25 UTCJul 14, 10:30 UTC1h 5m
2026-07-14 SJX742 - Jul 14, 07:10 UTCJul 14, 07:25 UTC15m
2026-07-14 SJX741 - Jul 14, 05:05 UTCJul 14, 05:20 UTC15m
2026-07-14 SJX741 - Jul 14, 02:10 UTCJul 14, 03:10 UTC1h 0m
2026-07-13 SJX001 - Jul 13, 08:15 UTCJul 13, 20:55 UTC12h 40m
2026-07-12 SJX002 - Jul 12, 16:45 UTCJul 13, 04:55 UTC12h 10m
2026-07-12 SJX823 - Jul 12, 08:55 UTCJul 12, 09:20 UTC25m
2026-07-12 SJX823 - Jul 12, 07:15 UTCJul 12, 07:50 UTC35m
2026-07-12 SJX822 TPE → KIX Jul 12, 02:30 UTCJul 12, 04:45 UTC2h 15m
2026-07-09 SJX823 KIX → TPE Jul 9, 06:40 UTCJul 9, 09:00 UTC2h 20m
2026-07-09 SJX822 - Jul 9, 04:25 UTCJul 9, 05:15 UTC50m
2026-07-09 SJX822 - Jul 9, 02:55 UTCJul 9, 03:10 UTC15m
2026-07-08 SJX001 - Jul 8, 20:50 UTCJul 8, 21:20 UTC30m

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-58506 page for operator, model, and routing details .

Mode-S 8990C0 frequently asked

What is Mode-S code 8990C0?
8990C0 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-58506.
Where is Mode-S 8990C0 registered?
Mode-S code 8990C0 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8990C0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8990C0, octal 42310300, decimal 9,015,488.
What flights does 8990C0 operate?
Mode-S 8990C0 has broadcast 20 distinct callsigns, including SJX002, SJX001, SJX031, SJX032, SJX851.