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
Broadcasting now · callsign SJX032 · 35,000 ft
Flights observed
247
Distinct callsigns
20
Country
TW
Last broadcast
4h ago

Current position

8990C0 is currently broadcasting. Map zoomed to live position.

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
SJX851 - 15 2026-07-05
SJX850 - 15 2026-07-05
SJX011 - 15 2026-06-17
SJX031 - 14 2026-07-04
SJX025 - 14 2026-06-24
SJX012 - 14 2026-06-16
SJX823 - 13 2026-07-12
SJX032 STARLUX Airlines 13 2026-07-03
SJX772 - 12 2026-07-07
SJX771 - 11 2026-07-07
SJX026 STARLUX Airlines 11 2026-06-23
SJX822 - 8 2026-07-12
SJX742 - 7 2026-07-14
SJX741 - 6 2026-07-14
SJX871 - 5 2026-06-19
SJX870 - 3 2026-06-19
SJX712 STARLUX Airlines 3 2026-05-25
SJX821 STARLUX Airlines 2 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-08 SJX001 - Jul 8, 08:05 UTCJul 8, 19:30 UTC11h 25m
2026-07-07 SJX002 - Jul 7, 16:50 UTCJul 8, 04:35 UTC11h 45m
2026-07-07 SJX772 - Jul 7, 09:55 UTCJul 7, 10:50 UTC55m
2026-07-07 SJX771 - Jul 7, 00:50 UTCJul 7, 04:45 UTC3h 55m
2026-07-06 SJX001 LAX → TPE Jul 6, 08:25 UTCJul 6, 21:20 UTC12h 55m
2026-07-05 SJX002 - Jul 5, 16:35 UTCJul 6, 04:05 UTC11h 30m
2026-07-05 SJX851 - Jul 5, 10:50 UTCJul 5, 11:15 UTC25m
2026-07-05 SJX851 - Jul 5, 07:40 UTCJul 5, 09:40 UTC2h 0m
2026-07-05 SJX850 - Jul 5, 03:45 UTCJul 5, 05:40 UTC1h 55m
2026-07-05 SJX850 - Jul 5, 02:30 UTCJul 5, 02:40 UTC10m
2026-07-04 SJX031 SEA → TPE Jul 4, 08:40 UTCJul 4, 20:10 UTC11h 30m
2026-07-03 SJX032 TPE → SEA Jul 3, 14:15 UTCJul 3, 23:00 UTC8h 45m
2026-07-03 SJX032 TPE → SEA Jul 3, 12:45 UTCJul 3, 13:05 UTC20m
2026-07-02 SJX772 - Jul 2, 06:35 UTCJul 2, 10:55 UTC4h 20m
2026-07-02 SJX771 - Jul 2, 00:35 UTCJul 2, 04:30 UTC3h 55m
2026-07-01 SJX001 - Jul 1, 07:55 UTCJul 1, 20:50 UTC12h 55m
2026-06-30 SJX002 - Jun 30, 18:45 UTCJul 1, 04:15 UTC9h 30m
2026-06-30 SJX002 - Jun 30, 16:45 UTCJun 30, 17:05 UTC20m
2026-06-30 SJX742 - Jun 30, 09:25 UTCJun 30, 09:45 UTC20m
2026-06-30 SJX742 - Jun 30, 06:30 UTCJun 30, 08:45 UTC2h 15m
2026-06-30 SJX741 - Jun 30, 01:25 UTCJun 30, 04:25 UTC3h 1m
2026-06-29 SJX001 - Jun 29, 07:55 UTCJun 29, 21:09 UTC13h 15m
2026-06-28 SJX002 - Jun 28, 18:05 UTCJun 29, 03:44 UTC9h 40m
2026-06-28 SJX002 - Jun 28, 16:39 UTCJun 28, 16:55 UTC15m
2026-06-28 SJX803 - Jun 28, 10:30 UTCJun 28, 11:04 UTC35m
2026-06-28 SJX803 - Jun 28, 07:44 UTCJun 28, 08:59 UTC1h 15m
2026-06-28 SJX802 TPE → NRT Jun 28, 02:49 UTCJun 28, 05:29 UTC2h 40m
2026-06-27 SJX772 - Jun 27, 06:50 UTCJun 27, 10:54 UTC4h 5m
2026-06-27 SJX771 - Jun 27, 01:09 UTCJun 27, 04:54 UTC3h 45m
2026-06-26 SJX001 - Jun 26, 20:44 UTCJun 26, 21:10 UTC25m
2026-06-26 SJX001 - Jun 26, 07:55 UTCJun 26, 08:24 UTC30m
2026-06-25 SJX002 - Jun 25, 19:09 UTCJun 26, 04:55 UTC9h 45m
2026-06-25 SJX002 - Jun 25, 17:39 UTCJun 25, 18:04 UTC25m
2026-06-25 SJX851 - Jun 25, 11:10 UTCJun 25, 11:30 UTC20m
2026-06-25 SJX851 - Jun 25, 07:45 UTCJun 25, 09:50 UTC2h 5m
2026-06-25 SJX850 - Jun 25, 02:39 UTCJun 25, 06:00 UTC3h 20m
2026-06-24 SJX025 - Jun 24, 19:59 UTCJun 24, 20:24 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-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?
Yes. Mode-S 8990C0 is currently airborne.
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, SJX851, SJX850, SJX011.