Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

8990ED

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-18918 · AIRBUS A-350-900

Hex
8990ED
Octal
42310355
Decimal
9,015,533
Country
TW
Tail
B-18918
Type
A359
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
224
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 8990ED.

Country allocation

The ICAO 24-bit address 8990ED 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
CAL761 China Airlines 20 2026-07-20
CAL036 - 16 2026-07-15
CAL035 - 16 2026-07-16
CAL762 China Airlines 14 2026-07-20
CAL062 China Airlines 13 2026-07-07
CAL061 China Airlines 13 2026-07-06
CAL502 - 9 2026-07-17
CAL053 China Airlines 9 2026-07-24
CAL054 China Airlines 8 2026-07-24
CAL052 China Airlines 8 2026-07-26
CAL051 China Airlines 8 2026-07-25
CAL832 China Airlines 7 2026-05-19
CAL831 China Airlines 6 2026-05-19
CAL753 - 5 2026-07-08
CAL501 China Airlines 5 2026-07-25
CAL081 China Airlines 5 2026-07-22
CAL782 - 4 2026-07-14
CAL754 - 4 2026-07-08
CAL504 - 4 2026-07-09
CAL082 China Airlines 4 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CAL052 SYD → TPE Jul 26, 19:30 UTCJul 26, 21:15 UTC1h 45m
2026-07-26 CAL052 SYD → TPE Jul 26, 12:10 UTCJul 26, 13:10 UTC1h 0m
2026-07-25 CAL051 TPE → SYD Jul 25, 15:50 UTCJul 26, 00:25 UTC8h 35m
2026-07-25 CAL501 TPE → PVG Jul 25, 01:05 UTCJul 25, 06:30 UTC5h 25m
2026-07-24 CAL054 BNE → TPE Jul 24, 12:55 UTCJul 24, 21:20 UTC8h 25m
2026-07-24 CAL054 BNE → TPE Jul 24, 07:35 UTCJul 24, 11:10 UTC3h 35m
2026-07-24 CAL053 TPE → BNE Jul 24, 03:20 UTCJul 24, 05:45 UTC2h 25m
2026-07-23 CAL053 TPE → BNE Jul 23, 16:35 UTCJul 24, 00:40 UTC8h 5m
2026-07-22 CAL082 LHR → TPE Jul 22, 20:35 UTCJul 23, 09:35 UTC13h 0m
2026-07-22 CAL081 TPE → LHR Jul 22, 02:20 UTCJul 22, 12:40 UTC10h 20m
2026-07-21 CAL058 MEL → TPE Jul 21, 12:00 UTCJul 21, 21:05 UTC9h 5m
2026-07-20 CAL057 TPE → MEL Jul 20, 15:55 UTCJul 21, 00:10 UTC8h 14m
2026-07-20 CAL762 CGK → TPE Jul 20, 10:05 UTCJul 20, 13:35 UTC3h 30m
2026-07-20 CAL762 CGK → TPE Jul 20, 08:30 UTCJul 20, 08:40 UTC10m
2026-07-20 CAL761 TPE → CGK Jul 20, 06:25 UTCJul 20, 06:45 UTC20m
2026-07-20 CAL761 TPE → CGK Jul 20, 01:55 UTCJul 20, 05:00 UTC3h 5m
2026-07-19 CAL052 SYD → TPE Jul 19, 12:40 UTCJul 19, 21:25 UTC8h 45m
2026-07-18 CAL051 - Jul 18, 16:10 UTCJul 19, 00:50 UTC8h 40m
2026-07-17 CAL502 - Jul 17, 10:00 UTCJul 17, 10:44 UTC45m
2026-07-17 CAL501 - Jul 17, 01:09 UTCJul 17, 01:29 UTC20m
2026-07-16 CAL035 - Jul 16, 19:25 UTCJul 16, 19:40 UTC15m
2026-07-16 CAL035 - Jul 16, 06:35 UTCJul 16, 18:19 UTC11h 45m
2026-07-15 CAL036 - Jul 15, 11:55 UTCJul 15, 22:55 UTC11h 0m
2026-07-15 CAL036 - Jul 15, 10:00 UTCJul 15, 10:20 UTC20m
2026-07-14 CAL782 - Jul 14, 23:45 UTCJul 15, 07:25 UTC7h 40m
2026-07-14 CAL064 VIE → TPE Jul 14, 09:35 UTCJul 14, 21:15 UTC11h 40m
2026-07-13 CAL063 - Jul 13, 15:40 UTCJul 14, 04:15 UTC12h 35m
2026-07-13 CAL121 - Jul 13, 04:00 UTCJul 13, 04:25 UTC25m
2026-07-13 CAL120 - Jul 13, 01:25 UTCJul 13, 01:45 UTC20m
2026-07-13 CAL120 - Jul 13, 00:20 UTCJul 13, 00:50 UTC30m
2026-07-12 CAL904 HKG → TPE Jul 12, 03:45 UTCJul 12, 05:10 UTC1h 25m
2026-07-12 CAL903 - Jul 12, 00:55 UTCJul 12, 02:05 UTC1h 10m
2026-07-11 CAL074 - Jul 11, 09:45 UTCJul 11, 22:35 UTC12h 50m
2026-07-09 CAL073 - Jul 9, 16:25 UTCJul 10, 06:05 UTC13h 40m
2026-07-09 CAL504 - Jul 9, 08:50 UTCJul 9, 13:35 UTC4h 45m
2026-07-08 CAL754 - Jul 8, 09:35 UTCJul 8, 10:35 UTC1h 0m
2026-07-08 CAL753 - Jul 8, 00:35 UTCJul 8, 04:25 UTC3h 50m
2026-07-07 CAL062 FRA → TPE Jul 7, 09:45 UTCJul 7, 21:50 UTC12h 5m
2026-07-06 CAL061 TPE → FRA Jul 6, 15:05 UTCJul 6, 20:55 UTC5h 50m
2026-07-06 CAL762 - Jul 6, 09:50 UTCJul 6, 13:05 UTC3h 15m
2026-07-06 CAL761 - Jul 6, 06:20 UTCJul 6, 06:35 UTC15m
2026-07-06 CAL761 - Jul 6, 01:40 UTCJul 6, 04:45 UTC3h 5m
2026-07-05 CAL762 - Jul 5, 10:55 UTCJul 5, 14:15 UTC3h 20m
2026-07-05 CAL762 - Jul 5, 09:20 UTCJul 5, 09:30 UTC10m
2026-07-05 CAL761 - Jul 5, 06:45 UTCJul 5, 07:05 UTC20m
2026-07-05 CAL761 - Jul 5, 02:05 UTCJul 5, 05:20 UTC3h 15m
2026-06-26 CAL762 - Jun 26, 10:10 UTCJun 26, 13:45 UTC3h 35m
2026-06-26 CAL761 - Jun 26, 06:29 UTCJun 26, 06:50 UTC20m
2026-06-26 CAL761 - Jun 26, 02:05 UTCJun 26, 05:05 UTC3h 0m
2026-06-25 CAL064 - Jun 25, 09:45 UTCJun 25, 21:15 UTC11h 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-18918 page for operator, model, and routing details .

Mode-S 8990ED frequently asked

What is Mode-S code 8990ED?
8990ED is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-18918.
Where is Mode-S 8990ED registered?
Mode-S code 8990ED is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8990ED broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8990ED, octal 42310355, decimal 9,015,533.
What flights does 8990ED operate?
Mode-S 8990ED has broadcast 20 distinct callsigns, including CAL761, CAL036, CAL035, CAL762, CAL062.