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 Jul 26, 21:15 UTC
Flights observed
272
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 21:15 UTC

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
TTW241 Tigerair Taiwan 9 2026-07-20
TTW240 Tigerair Taiwan 9 2026-07-20
TTW215 - 8 2026-07-15
TTW214 - 8 2026-07-15
TTW720 - 7 2026-07-03
TTW255 Tigerair Taiwan 7 2026-04-21
TTW247 Tigerair Taiwan 7 2026-07-26
TTW216 Tigerair Taiwan 7 2026-07-26
TTW213 Tigerair Taiwan 7 2026-07-26
TTW212 Tigerair Taiwan 7 2026-07-26
TTW202 Tigerair Taiwan 7 2026-05-02
TTW607 Tigerair Taiwan 6 2026-07-25
TTW606 Tigerair Taiwan 6 2026-07-25
TTW246 Tigerair Taiwan 6 2026-07-26
TTW217 Tigerair Taiwan 6 2026-07-26
TTW211 - 6 2026-07-05
TTW210 - 6 2026-07-21
TTW203 Tigerair Taiwan 6 2026-05-02
TTW655 - 5 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TTW217 HND → TPE Jul 26, 21:00 UTCJul 26, 21:15 UTC15m
2026-07-26 TTW216 TPE → HND Jul 26, 16:25 UTCJul 26, 19:15 UTC2h 50m
2026-07-26 TTW213 KIX → TPE Jul 26, 13:15 UTCJul 26, 13:40 UTC25m
2026-07-26 TTW213 KIX → TPE Jul 26, 11:25 UTCJul 26, 11:55 UTC30m
2026-07-26 TTW212 TPE → KIX Jul 26, 06:35 UTCJul 26, 08:50 UTC2h 15m
2026-07-26 TTW247 HSG → TPE Jul 26, 04:10 UTCJul 26, 04:35 UTC25m
2026-07-26 TTW247 HSG → TPE Jul 26, 02:45 UTCJul 26, 02:55 UTC10m
2026-07-26 TTW246 TPE → HSG Jul 26, 01:10 UTCJul 26, 01:20 UTC10m
2026-07-25 TTW246 TPE → HSG Jul 25, 23:25 UTCJul 25, 23:35 UTC10m
2026-07-25 TTW607 PUS → TPE Jul 25, 13:55 UTCJul 25, 14:15 UTC20m
2026-07-25 TTW607 PUS → TPE Jul 25, 12:30 UTCJul 25, 12:50 UTC20m
2026-07-25 TTW606 TPE → PUS Jul 25, 10:50 UTCJul 25, 11:15 UTC25m
2026-07-25 TTW606 TPE → PUS Jul 25, 09:25 UTCJul 25, 09:35 UTC10m
2026-07-25 TTW251 KCZ → TPE Jul 25, 07:25 UTCJul 25, 07:50 UTC25m
2026-07-25 TTW251 KCZ → TPE Jul 25, 05:50 UTCJul 25, 06:10 UTC20m
2026-07-25 TTW250 TPE → KCZ Jul 25, 01:45 UTCJul 25, 03:20 UTC1h 35m
2026-07-24 TTW3011 TSA → TPE Jul 24, 23:30 UTCJul 24, 23:35 UTC5m
2026-07-24 TTW229 KIJ → TPE Jul 24, 13:10 UTCJul 24, 14:05 UTC55m
2026-07-24 TTW229 KIJ → TPE Jul 24, 10:30 UTCJul 24, 12:30 UTC2h 0m
2026-07-24 TTW228 TPE → KIJ Jul 24, 06:55 UTCJul 24, 08:45 UTC1h 50m
2026-07-24 TTW228 TPE → KIJ Jul 24, 06:15 UTCJul 24, 06:25 UTC10m
2026-07-24 TTW743 KMI → TPE Jul 24, 03:10 UTCJul 24, 03:40 UTC30m
2026-07-23 TTW742 TPE → KMI Jul 23, 22:35 UTCJul 23, 22:45 UTC10m
2026-07-23 TTW233 OKA → TPE Jul 23, 11:00 UTCJul 23, 11:30 UTC30m
2026-07-23 TTW796 TNN → OKA Jul 23, 07:45 UTCJul 23, 08:20 UTC35m
2026-07-23 TTW797 OKA → TNN Jul 23, 05:35 UTCJul 23, 06:05 UTC30m
2026-07-23 TTW288 KHH → OKA Jul 23, 02:45 UTCJul 23, 02:55 UTC10m
2026-07-23 TTW288 KHH → OKA Jul 23, 01:30 UTCJul 23, 01:55 UTC25m
2026-07-22 TTW269 NGO → KHH Jul 22, 12:00 UTCJul 22, 14:35 UTC2h 35m
2026-07-22 TTW285 KIX → KHH Jul 22, 03:40 UTCJul 22, 04:25 UTC45m
2026-07-21 TTW284 - Jul 21, 23:10 UTCJul 22, 01:45 UTC2h 35m
2026-07-21 TTW271 FUK → KHH Jul 21, 10:45 UTCJul 21, 13:00 UTC2h 15m
2026-07-21 TTW270 KHH → FUK Jul 21, 07:10 UTCJul 21, 09:20 UTC2h 10m
2026-07-21 TTW285 KIX → KHH Jul 21, 02:55 UTCJul 21, 05:40 UTC2h 45m
2026-07-21 TTW210 - Jul 21, 00:35 UTCJul 21, 01:15 UTC40m
2026-07-20 TTW229 KIJ → TPE Jul 20, 12:45 UTCJul 20, 13:15 UTC30m
2026-07-20 TTW229 KIJ → TPE Jul 20, 10:25 UTCJul 20, 11:35 UTC1h 10m
2026-07-20 TTW228 TPE → KIJ Jul 20, 07:45 UTCJul 20, 08:40 UTC55m
2026-07-20 TTW228 TPE → KIJ Jul 20, 06:10 UTCJul 20, 06:25 UTC15m
2026-07-20 TTW241 FUK → TPE Jul 20, 03:15 UTCJul 20, 03:40 UTC25m
2026-07-20 TTW241 FUK → TPE Jul 20, 01:45 UTCJul 20, 01:55 UTC10m
2026-07-20 TTW240 TPE → FUK Jul 20, 00:05 UTCJul 20, 00:25 UTC20m
2026-07-19 TTW240 TPE → FUK Jul 19, 22:40 UTCJul 19, 22:55 UTC15m
2026-07-18 TTW259 - Jul 18, 12:35 UTCJul 18, 12:45 UTC10m
2026-07-18 TTW259 - Jul 18, 09:55 UTCJul 18, 11:35 UTC1h 40m
2026-07-18 TTW258 - Jul 18, 06:05 UTCJul 18, 08:15 UTC2h 10m
2026-07-18 TTW258 - Jul 18, 05:15 UTCJul 18, 05:30 UTC15m
2026-07-18 TTW655 - Jul 18, 03:20 UTCJul 18, 03:35 UTC15m
2026-07-17 TTW654 - Jul 17, 23:00 UTCJul 17, 23:20 UTC20m
2026-07-16 TTW701 - Jul 16, 15:05 UTCJul 16, 15:19 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 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 899025, octal 42310045, decimal 9,015,333.
What flights does 899025 operate?
Mode-S 899025 has broadcast 20 distinct callsigns, including TTW721, TTW241, TTW240, TTW215, TTW214.