Apparatus

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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
Broadcasting now · callsign CAL081 · 34,100 ft
Flights observed
121
Distinct callsigns
20
Country
TW
Last broadcast
1h ago

Current position

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

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
CAL035 China Airlines 12 2026-05-18
CAL062 China Airlines 11 2026-05-27
CAL061 China Airlines 11 2026-05-26
CAL036 China Airlines 11 2026-05-17
CAL832 China Airlines 7 2026-05-19
CAL831 China Airlines 6 2026-05-19
CAL502 China Airlines 6 2026-05-17
CAL053 China Airlines 5 2026-05-29
CAL051 China Airlines 5 2026-04-22
CAL762 China Airlines 4 2026-05-24
CAL761 China Airlines 4 2026-05-24
CAL054 China Airlines 4 2026-05-29
CAL052 China Airlines 4 2026-04-23
CAL501 China Airlines 3 2026-05-15
CAL919 China Airlines 2 2026-05-05
CAL781 China Airlines 2 2026-05-05
CAL753 China Airlines 2 2026-04-20
CAL153 China Airlines 2 2026-05-21
CAL101 China Airlines 2 2026-04-18
CAL100 China Airlines 2 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CAL081 TPE → LHR May 30, 00:55 UTCMay 30, 01:15 UTC20m
2026-05-29 CAL054 BNE → TPE May 29, 13:10 UTCMay 29, 21:30 UTC8h 20m
2026-05-29 CAL054 BNE → TPE May 29, 07:55 UTCMay 29, 11:05 UTC3h 10m
2026-05-29 CAL053 TPE → BNE May 29, 03:15 UTCMay 29, 06:05 UTC2h 50m
2026-05-28 CAL053 TPE → BNE May 28, 16:35 UTCMay 29, 00:40 UTC8h 5m
2026-05-28 CAL784 SGN → TPE May 28, 06:05 UTCMay 28, 14:05 UTC8h 0m
2026-05-27 CAL062 FRA → TPE May 27, 09:50 UTCMay 27, 22:00 UTC12h 10m
2026-05-26 CAL061 TPE → FRA May 26, 14:45 UTCMay 26, 20:54 UTC6h 10m
2026-05-25 CAL074 AMS → TPE May 25, 09:25 UTCMay 25, 22:10 UTC12h 45m
2026-05-24 CAL073 TPE → AMS May 24, 15:05 UTCMay 25, 05:15 UTC14h 10m
2026-05-24 CAL762 CGK → TPE May 24, 09:55 UTCMay 24, 13:00 UTC3h 5m
2026-05-24 CAL762 CGK → TPE May 24, 08:05 UTCMay 24, 08:15 UTC10m
2026-05-24 CAL761 TPE → CGK May 24, 01:40 UTCMay 24, 04:35 UTC2h 55m
2026-05-23 CAL762 CGK → TPE May 23, 10:00 UTCMay 23, 13:05 UTC3h 5m
2026-05-23 CAL761 TPE → CGK May 23, 06:05 UTCMay 23, 06:20 UTC15m
2026-05-23 CAL761 TPE → CGK May 23, 01:35 UTCMay 23, 04:30 UTC2h 54m
2026-05-22 CAL023 ONT → TPE May 22, 07:30 UTCMay 22, 21:05 UTC13h 35m
2026-05-21 CAL024 TPE → ONT May 21, 15:15 UTCMay 22, 01:05 UTC9h 50m
2026-05-21 CAL024 TPE → ONT May 21, 13:45 UTCMay 21, 14:05 UTC20m
2026-05-21 CAL153 KIX → TPE May 21, 07:30 UTCMay 21, 07:55 UTC25m
2026-05-21 CAL153 KIX → TPE May 21, 05:30 UTCMay 21, 06:05 UTC35m
2026-05-21 CAL152 TPE → KIX May 21, 01:40 UTCMay 21, 03:50 UTC2h 10m
2026-05-20 CAL074 AMS → TPE May 20, 09:15 UTCMay 20, 21:55 UTC12h 40m
2026-05-19 CAL073 TPE → AMS May 19, 15:15 UTCMay 19, 22:00 UTC6h 45m
2026-05-19 CAL832 BKK → TPE May 19, 06:35 UTCMay 19, 10:00 UTC3h 25m
2026-05-19 CAL831 TPE → BKK May 19, 02:00 UTCMay 19, 05:05 UTC3h 5m
2026-05-18 CAL035 PHX → TPE May 18, 07:55 UTCMay 18, 21:55 UTC13h 59m
2026-05-17 CAL036 TPE → PHX May 17, 09:55 UTCMay 17, 21:40 UTC11h 45m
2026-05-17 CAL502 PVG → TPE May 17, 01:10 UTCMay 17, 06:15 UTC5h 5m
2026-05-16 CAL062 FRA → TPE May 16, 09:40 UTCMay 16, 21:45 UTC12h 5m
2026-05-15 CAL061 TPE → FRA May 15, 14:50 UTCMay 16, 04:25 UTC13h 35m
2026-05-15 CAL501 TPE → PVG May 15, 01:00 UTCMay 15, 05:50 UTC4h 50m
2026-05-14 CAL054 BNE → TPE May 14, 13:05 UTCMay 14, 21:30 UTC8h 25m
2026-05-14 CAL054 BNE → TPE May 14, 07:50 UTCMay 14, 10:50 UTC3h 0m
2026-05-14 CAL053 TPE → BNE May 14, 03:05 UTCMay 14, 05:55 UTC2h 50m
2026-05-13 CAL053 TPE → BNE May 13, 23:35 UTCMay 14, 00:20 UTC45m
2026-05-13 CAL053 TPE → BNE May 13, 16:25 UTCMay 13, 16:40 UTC15m
2026-05-13 CAL832 BKK → TPE May 13, 06:45 UTCMay 13, 10:05 UTC3h 20m
2026-05-13 CAL831 TPE → BKK May 13, 01:45 UTCMay 13, 04:55 UTC3h 10m
2026-05-12 CAL832 BKK → TPE May 12, 07:00 UTCMay 12, 10:00 UTC3h 0m
2026-05-12 CAL831 TPE → BKK May 12, 02:45 UTCMay 12, 05:20 UTC2h 35m
2026-05-11 CAL035 PHX → TPE May 11, 07:10 UTCMay 11, 21:00 UTC13h 51m
2026-05-10 CAL036 TPE → PHX May 10, 11:35 UTCMay 10, 21:40 UTC10h 5m
2026-05-10 CAL036 TPE → PHX May 10, 10:10 UTCMay 10, 10:19 UTC10m
2026-05-09 CAL035 PHX → TPE May 9, 06:45 UTCMay 9, 21:00 UTC14h 15m
2026-05-08 CAL036 TPE → PHX May 8, 09:59 UTCMay 8, 21:45 UTC11h 45m
2026-05-08 CAL502 PVG → TPE May 8, 05:05 UTCMay 8, 05:39 UTC35m
2026-05-08 CAL501 TPE → PVG May 8, 01:04 UTCMay 8, 01:40 UTC35m
2026-05-07 CAL035 PHX → TPE May 7, 06:50 UTCMay 7, 21:00 UTC14h 11m
2026-05-06 CAL036 TPE → PHX May 6, 09:45 UTCMay 6, 21:55 UTC12h 9m

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?
Yes. Mode-S 8990ED is currently airborne.
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 CAL035, CAL062, CAL061, CAL036, CAL832.