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sensors Mode-S transponder

89905D

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-22102 · AIRBUS A-330-300

Hex
89905D
Octal
42310135
Decimal
9,015,389
Country
TW
Tail
B-22102
Type
A333
No current signal · last broadcast Jul 26, 13:15 UTC
Flights observed
414
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 13:15 UTC

Last known position

Most recent position reported by Mode-S 89905D.

Country allocation

The ICAO 24-bit address 89905D 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
TTW603 Tigerair Taiwan 22 2026-07-23
TTW602 Tigerair Taiwan 20 2026-07-23
TTW235 - 14 2026-07-09
TTW217 Tigerair Taiwan 12 2026-07-22
TTW201 - 12 2026-06-26
TTW237 - 11 2026-06-21
TTW216 - 10 2026-07-22
TTW280 - 9 2026-07-13
TTW215 - 9 2026-07-08
TTW551 Tigerair Taiwan 8 2026-07-25
TTW552 - 7 2026-07-02
TTW261 - 7 2026-07-16
TTW260 - 7 2026-07-15
TTW236 Tigerair Taiwan 7 2026-06-20
TTW234 - 7 2026-07-08
TTW213 - 7 2026-07-20
TTW211 Tigerair Taiwan 7 2026-07-19
TTW779 - 6 2026-06-22
TTW737 - 6 2026-07-08
TTW736 - 6 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TTW670 KHH → CJU Jul 26, 08:20 UTCJul 26, 13:15 UTC4h 55m
2026-07-25 TTW551 TPE → DAD Jul 25, 09:00 UTCJul 25, 15:00 UTC6h 0m
2026-07-24 TTW725 YGJ → TPE Jul 24, 09:20 UTCJul 24, 11:35 UTC2h 15m
2026-07-24 TTW724 TPE → YGJ Jul 24, 05:50 UTCJul 24, 07:45 UTC1h 55m
2026-07-24 TTW655 CJU → TPE Jul 24, 03:05 UTCJul 24, 03:30 UTC25m
2026-07-23 TTW654 TPE → CJU Jul 23, 23:10 UTCJul 23, 23:30 UTC20m
2026-07-23 TTW603 ICN → TPE Jul 23, 16:20 UTCJul 23, 18:35 UTC2h 15m
2026-07-23 TTW602 TPE → ICN Jul 23, 13:00 UTCJul 23, 15:05 UTC2h 5m
2026-07-23 TTW253 KMQ → TPE Jul 23, 08:30 UTCJul 23, 11:05 UTC2h 35m
2026-07-23 TTW252 TPE → KMQ Jul 23, 04:35 UTCJul 23, 07:10 UTC2h 35m
2026-07-22 TTW217 HND → TPE Jul 22, 23:25 UTCJul 22, 23:35 UTC10m
2026-07-22 TTW217 HND → TPE Jul 22, 20:55 UTCJul 22, 22:05 UTC1h 10m
2026-07-22 TTW216 TPE → HND Jul 22, 16:40 UTCJul 22, 19:30 UTC2h 50m
2026-07-22 TTW259 HNA → TPE Jul 22, 13:00 UTCJul 22, 13:15 UTC15m
2026-07-22 TTW259 HNA → TPE Jul 22, 10:20 UTCJul 22, 11:40 UTC1h 20m
2026-07-22 TTW258 - Jul 22, 05:20 UTCJul 22, 05:25 UTC5m
2026-07-22 TTW655 CJU → TPE Jul 22, 03:10 UTCJul 22, 03:35 UTC25m
2026-07-21 TTW654 TPE → CJU Jul 21, 23:00 UTCJul 21, 23:20 UTC20m
2026-07-21 TTW233 OKA → TPE Jul 21, 13:55 UTCJul 21, 14:25 UTC30m
2026-07-21 TTW232 TPE → OKA Jul 21, 10:55 UTCJul 21, 11:55 UTC1h 0m
2026-07-21 TTW207 NGO → TPE Jul 21, 07:35 UTCJul 21, 07:50 UTC15m
2026-07-21 TTW207 NGO → TPE Jul 21, 05:30 UTCJul 21, 07:00 UTC1h 30m
2026-07-21 TTW206 TPE → NGO Jul 21, 01:35 UTCJul 21, 03:55 UTC2h 20m
2026-07-20 TTW213 - Jul 20, 13:15 UTCJul 20, 13:40 UTC25m
2026-07-20 TTW213 - Jul 20, 11:25 UTCJul 20, 12:05 UTC40m
2026-07-20 TTW212 TPE → KIX Jul 20, 07:40 UTCJul 20, 10:05 UTC2h 25m
2026-07-19 TTW742 TPE → KMI Jul 19, 22:55 UTCJul 20, 03:55 UTC5h 0m
2026-07-19 TTW701 - Jul 19, 14:50 UTCJul 19, 15:20 UTC30m
2026-07-19 TTW701 - Jul 19, 12:20 UTCJul 19, 13:40 UTC1h 20m
2026-07-19 TTW700 TPE → NRT Jul 19, 07:50 UTCJul 19, 10:45 UTC2h 55m
2026-07-19 TTW211 KIX → TPE Jul 19, 05:15 UTCJul 19, 05:40 UTC25m
2026-07-19 TTW211 KIX → TPE Jul 19, 03:20 UTCJul 19, 04:00 UTC40m
2026-07-18 TTW284 KHH → KIX Jul 18, 23:20 UTCJul 19, 01:55 UTC2h 35m
2026-07-18 TTW773 - Jul 18, 10:40 UTCJul 18, 13:50 UTC3h 10m
2026-07-18 TTW772 - Jul 18, 06:00 UTCJul 18, 09:15 UTC3h 15m
2026-07-17 TTW675 - Jul 17, 23:20 UTCJul 18, 04:30 UTC5h 11m
2026-07-17 TTW670 - Jul 17, 09:25 UTCJul 17, 13:50 UTC4h 25m
2026-07-17 TTW289 - Jul 17, 07:25 UTCJul 17, 07:55 UTC30m
2026-07-17 TTW288 - Jul 17, 05:10 UTCJul 17, 05:20 UTC10m
2026-07-17 TTW288 - Jul 17, 03:55 UTCJul 17, 04:29 UTC35m
2026-07-16 TTW261 - Jul 16, 04:50 UTCJul 16, 08:50 UTC4h 0m
2026-07-15 TTW260 - Jul 15, 23:35 UTCJul 16, 03:20 UTC3h 45m
2026-07-15 TTW773 - Jul 15, 10:30 UTCJul 15, 13:50 UTC3h 20m
2026-07-15 TTW772 - Jul 15, 05:45 UTCJul 15, 09:00 UTC3h 15m
2026-07-14 TTW675 - Jul 14, 23:25 UTCJul 15, 04:15 UTC4h 50m
2026-07-14 TTW793 - Jul 14, 10:25 UTCJul 14, 11:30 UTC1h 5m
2026-07-14 TTW728 - Jul 14, 08:10 UTCJul 14, 08:25 UTC15m
2026-07-14 TTW289 - Jul 14, 05:30 UTCJul 14, 06:40 UTC1h 10m
2026-07-14 TTW288 - Jul 14, 02:20 UTCJul 14, 02:45 UTC25m
2026-07-14 TTW3005 - Jul 14, 00:05 UTCJul 14, 00:45 UTC40m

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-22102 page for operator, model, and routing details .

Mode-S 89905D frequently asked

What is Mode-S code 89905D?
89905D is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-22102.
Where is Mode-S 89905D registered?
Mode-S code 89905D is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 89905D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 89905D, octal 42310135, decimal 9,015,389.
What flights does 89905D operate?
Mode-S 89905D has broadcast 20 distinct callsigns, including TTW603, TTW602, TTW235, TTW217, TTW201.