Apparatus

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sensors Mode-S transponder

899025

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-50005 · AIRBUS A-320

Hex
899025
Octal
42310045
Decimal
9,015,333
Country
TW
Tail
B-50005
Type
A320
No current signal · last broadcast 1h ago
Flights observed
206
Distinct callsigns
20
Country
TW
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 899025.

Country allocation

The ICAO 24-bit address 899025 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
TTW721 - 9 2026-07-03
TTW720 - 7 2026-07-03
TTW255 Tigerair Taiwan 7 2026-04-21
TTW241 - 7 2026-07-06
TTW240 Tigerair Taiwan 7 2026-07-06
TTW202 Tigerair Taiwan 7 2026-05-02
TTW216 Tigerair Taiwan 6 2026-05-12
TTW214 - 6 2026-07-14
TTW212 Tigerair Taiwan 6 2026-05-11
TTW211 - 6 2026-07-05
TTW203 Tigerair Taiwan 6 2026-05-02
TTW254 Tigerair Taiwan 5 2026-04-21
TTW247 - 5 2026-07-07
TTW231 - 5 2026-07-08
TTW230 Tigerair Taiwan 5 2026-07-07
TTW217 Tigerair Taiwan 5 2026-05-12
TTW215 Tigerair Taiwan 5 2026-05-13
TTW213 Tigerair Taiwan 5 2026-05-11
TTW210 Tigerair Taiwan 5 2026-05-03
TTW655 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TTW214 - Jul 14, 03:50 UTCJul 14, 05:50 UTC2h 0m
2026-07-13 TTW603 ICN → TPE Jul 13, 15:45 UTCJul 13, 17:45 UTC2h 0m
2026-07-13 TTW602 - Jul 13, 12:25 UTCJul 13, 14:30 UTC2h 5m
2026-07-13 TTW201 NRT → TPE Jul 13, 05:25 UTCJul 13, 08:20 UTC2h 55m
2026-07-12 TTW200 TPE → NRT Jul 12, 22:40 UTCJul 13, 01:45 UTC3h 5m
2026-07-12 TTW701 - Jul 12, 15:15 UTCJul 12, 15:50 UTC35m
2026-07-12 TTW701 - Jul 12, 12:50 UTCJul 12, 14:10 UTC1h 20m
2026-07-12 TTW700 - Jul 12, 10:05 UTCJul 12, 11:30 UTC1h 25m
2026-07-12 TTW700 - Jul 12, 08:25 UTCJul 12, 08:40 UTC15m
2026-07-12 TTW655 - Jul 12, 06:25 UTCJul 12, 06:55 UTC30m
2026-07-12 TTW654 - Jul 12, 02:01 UTCJul 12, 02:20 UTC20m
2026-07-08 TTW231 - Jul 8, 01:20 UTCJul 8, 02:15 UTC55m
2026-07-07 TTW230 TPE → OKA Jul 7, 23:05 UTCJul 7, 23:30 UTC25m
2026-07-07 TTW503 - Jul 7, 07:15 UTCJul 7, 16:15 UTC9h 0m
2026-07-07 TTW247 - Jul 7, 04:50 UTCJul 7, 05:25 UTC35m
2026-07-07 TTW247 - Jul 7, 03:25 UTCJul 7, 03:35 UTC10m
2026-07-06 TTW246 - Jul 6, 23:10 UTCJul 6, 23:25 UTC15m
2026-07-06 TTW229 - Jul 6, 10:10 UTCJul 6, 13:05 UTC2h 55m
2026-07-06 TTW228 - Jul 6, 06:05 UTCJul 6, 08:40 UTC2h 35m
2026-07-06 TTW241 - Jul 6, 04:05 UTCJul 6, 04:35 UTC30m
2026-07-06 TTW241 - Jul 6, 02:40 UTCJul 6, 02:50 UTC10m
2026-07-06 TTW240 TPE → FUK Jul 6, 00:05 UTCJul 6, 00:35 UTC30m
2026-07-05 TTW240 TPE → FUK Jul 5, 22:40 UTCJul 5, 22:50 UTC10m
2026-07-05 TTW211 - Jul 5, 05:25 UTCJul 5, 05:40 UTC15m
2026-07-05 TTW211 - Jul 5, 03:20 UTCJul 5, 04:05 UTC45m
2026-07-04 TTW284 KHH → KIX Jul 4, 23:20 UTCJul 5, 01:50 UTC2h 30m
2026-07-04 TTW3005 - Jul 4, 09:30 UTCJul 4, 10:05 UTC35m
2026-07-03 TTW721 - Jul 3, 12:20 UTCJul 3, 12:30 UTC10m
2026-07-03 TTW721 - Jul 3, 10:40 UTCJul 3, 10:50 UTC10m
2026-07-03 TTW720 - Jul 3, 08:10 UTCJul 3, 08:25 UTC15m
2026-07-03 TTW720 - Jul 3, 06:45 UTCJul 3, 07:00 UTC15m
2026-07-03 TTW241 - Jul 3, 04:25 UTCJul 3, 04:40 UTC15m
2026-07-03 TTW241 - Jul 3, 02:50 UTCJul 3, 03:00 UTC10m
2026-07-02 TTW240 TPE → FUK Jul 2, 23:10 UTCJul 3, 00:55 UTC1h 45m
2026-07-02 TTW721 - Jul 2, 11:35 UTCJul 2, 12:00 UTC25m
2026-07-02 TTW720 - Jul 2, 06:41 UTCJul 2, 06:51 UTC10m
2026-07-02 TTW247 - Jul 2, 04:45 UTCJul 2, 05:10 UTC25m
2026-07-01 TTW246 - Jul 1, 23:50 UTCJul 2, 00:00 UTC10m
2026-07-01 TTW751 - Jul 1, 09:30 UTCJul 1, 09:55 UTC25m
2026-07-01 TTW750 - Jul 1, 04:50 UTCJul 1, 05:00 UTC10m
2026-07-01 TTW231 - Jul 1, 02:00 UTCJul 1, 02:25 UTC25m
2026-06-30 TTW230 TPE → OKA Jun 30, 23:05 UTCJun 30, 23:15 UTC10m
2026-06-30 TTW721 - Jun 30, 12:20 UTCJun 30, 12:50 UTC30m
2026-06-30 TTW720 - Jun 30, 05:50 UTCJun 30, 06:00 UTC10m
2026-06-30 TTW655 - Jun 30, 03:10 UTCJun 30, 03:30 UTC20m
2026-06-29 TTW654 - Jun 29, 23:05 UTCJun 29, 23:19 UTC15m
2026-06-29 TTW231 - Jun 29, 06:40 UTCJun 29, 07:05 UTC25m
2026-06-29 TTW230 TPE → OKA Jun 29, 00:44 UTCJun 29, 01:05 UTC20m
2026-06-28 TTW3062 - Jun 28, 09:20 UTCJun 28, 09:39 UTC20m
2026-06-28 TTW3062 - Jun 28, 08:19 UTCJun 28, 08:34 UTC15m

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-50005 page for operator, model, and routing details .

Mode-S 899025 frequently asked

What is Mode-S code 899025?
899025 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-50005.
Where is Mode-S 899025 registered?
Mode-S code 899025 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899025 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899025, octal 42310045, decimal 9,015,333.
What flights does 899025 operate?
Mode-S 899025 has broadcast 20 distinct callsigns, including TTW721, TTW720, TTW255, TTW241, TTW240.