Apparatus

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sensors Mode-S transponder

899027

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-50007 · AIRBUS A-320

Hex
899027
Octal
42310047
Decimal
9,015,335
Country
TW
Tail
B-50007
Type
A320
Broadcasting now · callsign TTW725 · 34,025 ft
Flights observed
56
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 14:20 UTC

Current position

899027 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 899027 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 Tigerair Taiwan 7 2026-07-23
TTW720 Tigerair Taiwan 5 2026-07-23
TTW210 Tigerair Taiwan 5 2026-07-23
TTW211 Tigerair Taiwan 4 2026-07-24
TTW203 Tigerair Taiwan 4 2026-07-24
TTW202 Tigerair Taiwan 4 2026-07-24
TTW032 - 3 2026-07-12
TTW715 - 2 2026-07-19
TTW711 Tigerair Taiwan 2 2026-07-25
TTW654 - 2 2026-07-19
TTW607 Tigerair Taiwan 2 2026-07-26
TTW247 Tigerair Taiwan 2 2026-07-23
TTW246 - 2 2026-07-23
TTW213 Tigerair Taiwan 2 2026-07-25
TTW714 - 1 2026-07-19
TTW710 Tigerair Taiwan 1 2026-07-25
TTW606 Tigerair Taiwan 1 2026-07-26
TTW241 - 1 2026-07-17
TTW240 Tigerair Taiwan 1 2026-07-16
TTW231 Tigerair Taiwan 1 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TTW607 PUS → TPE Jul 26, 13:50 UTCJul 26, 14:15 UTC25m
2026-07-26 TTW607 PUS → TPE Jul 26, 12:25 UTCJul 26, 12:45 UTC20m
2026-07-26 TTW606 TPE → PUS Jul 26, 09:10 UTCJul 26, 11:05 UTC1h 55m
2026-07-26 TTW201 NRT → TPE Jul 26, 03:20 UTCJul 26, 06:15 UTC2h 55m
2026-07-25 TTW200 TPE → NRT Jul 25, 22:50 UTCJul 26, 01:50 UTC3h 0m
2026-07-25 TTW213 KIX → TPE Jul 25, 14:10 UTCJul 25, 14:25 UTC15m
2026-07-25 TTW213 KIX → TPE Jul 25, 12:10 UTCJul 25, 13:40 UTC1h 30m
2026-07-25 TTW212 TPE → KIX Jul 25, 08:40 UTCJul 25, 10:55 UTC2h 15m
2026-07-25 TTW711 KIX → TPE Jul 25, 06:05 UTCJul 25, 06:35 UTC30m
2026-07-25 TTW711 KIX → TPE Jul 25, 04:00 UTCJul 25, 04:45 UTC45m
2026-07-25 TTW710 TPE → KIX Jul 25, 00:35 UTCJul 25, 02:45 UTC2h 10m
2026-07-24 TTW203 NRT → TPE Jul 24, 14:25 UTCJul 24, 15:10 UTC45m
2026-07-24 TTW203 NRT → TPE Jul 24, 11:45 UTCJul 24, 13:00 UTC1h 15m
2026-07-24 TTW202 TPE → NRT Jul 24, 08:45 UTCJul 24, 10:05 UTC1h 20m
2026-07-24 TTW202 TPE → NRT Jul 24, 07:10 UTCJul 24, 07:25 UTC15m
2026-07-24 TTW211 KIX → TPE Jul 24, 03:00 UTCJul 24, 05:30 UTC2h 30m
2026-07-23 TTW210 TPE → KIX Jul 23, 23:45 UTCJul 24, 01:10 UTC1h 25m
2026-07-23 TTW210 TPE → KIX Jul 23, 23:00 UTCJul 23, 23:15 UTC15m
2026-07-23 TTW721 FUK → TPE Jul 23, 10:10 UTCJul 23, 12:10 UTC2h 0m
2026-07-23 TTW720 TPE → FUK Jul 23, 06:45 UTCJul 23, 08:40 UTC1h 55m
2026-07-23 TTW247 HSG → TPE Jul 23, 04:45 UTCJul 23, 05:00 UTC15m
2026-07-23 TTW247 HSG → TPE Jul 23, 03:10 UTCJul 23, 03:20 UTC10m
2026-07-23 TTW246 - Jul 23, 01:10 UTCJul 23, 01:20 UTC10m
2026-07-22 TTW246 - Jul 22, 23:25 UTCJul 23, 00:15 UTC50m
2026-07-22 TTW721 FUK → TPE Jul 22, 11:25 UTCJul 22, 12:20 UTC55m
2026-07-22 TTW211 KIX → TPE Jul 22, 03:15 UTCJul 22, 04:00 UTC45m
2026-07-21 TTW210 TPE → KIX Jul 21, 22:50 UTCJul 22, 01:10 UTC2h 20m
2026-07-21 TTW721 FUK → TPE Jul 21, 11:05 UTCJul 21, 11:20 UTC15m
2026-07-21 TTW721 FUK → TPE Jul 21, 09:30 UTCJul 21, 09:45 UTC15m
2026-07-21 TTW720 TPE → FUK Jul 21, 07:15 UTCJul 21, 07:30 UTC15m
2026-07-21 TTW720 TPE → FUK Jul 21, 05:45 UTCJul 21, 06:35 UTC50m
2026-07-21 TTW231 OKA → TPE Jul 21, 01:50 UTCJul 21, 02:50 UTC1h 0m
2026-07-20 TTW230 - Jul 20, 23:25 UTCJul 20, 23:45 UTC20m
2026-07-20 TTW721 - Jul 20, 08:45 UTCJul 20, 10:35 UTC1h 50m
2026-07-20 TTW720 - Jul 20, 05:15 UTCJul 20, 07:15 UTC2h 0m
2026-07-19 TTW654 TPE → TPE Jul 19, 23:00 UTCJul 20, 03:20 UTC4h 20m
2026-07-19 TTW715 - Jul 19, 11:00 UTCJul 19, 11:25 UTC25m
2026-07-19 TTW715 - Jul 19, 09:05 UTCJul 19, 09:40 UTC35m
2026-07-19 TTW714 - Jul 19, 05:15 UTCJul 19, 07:15 UTC2h 0m
2026-07-18 TTW654 TPE → TPE Jul 18, 23:00 UTCJul 19, 03:35 UTC4h 35m
2026-07-18 TTW203 - Jul 18, 14:05 UTCJul 18, 14:25 UTC20m
2026-07-18 TTW203 - Jul 18, 11:35 UTCJul 18, 13:35 UTC2h 0m
2026-07-18 TTW202 - Jul 18, 08:55 UTCJul 18, 10:15 UTC1h 20m
2026-07-18 TTW202 - Jul 18, 07:15 UTCJul 18, 07:25 UTC10m
2026-07-18 TTW211 - Jul 18, 05:00 UTCJul 18, 05:20 UTC20m
2026-07-18 TTW211 - Jul 18, 03:05 UTCJul 18, 03:45 UTC40m
2026-07-18 TTW210 - Jul 18, 00:39 UTCJul 18, 01:30 UTC50m
2026-07-17 TTW210 - Jul 17, 23:05 UTCJul 17, 23:20 UTC15m
2026-07-17 TTW721 - Jul 17, 11:50 UTCJul 17, 12:19 UTC30m
2026-07-17 TTW721 - Jul 17, 10:25 UTCJul 17, 10:55 UTC30m

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-50007 page for operator, model, and routing details .

Mode-S 899027 frequently asked

What is Mode-S code 899027?
899027 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-50007.
Where is Mode-S 899027 registered?
Mode-S code 899027 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899027 broadcasting right now?
Yes. Mode-S 899027 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899027, octal 42310047, decimal 9,015,335.
What flights does 899027 operate?
Mode-S 899027 has broadcast 20 distinct callsigns, including TTW721, TTW720, TTW210, TTW211, TTW203.