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sensors Mode-S transponder

899059

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-50023 · AIRBUS A-320neo

Hex
899059
Octal
42310131
Decimal
9,015,385
Country
TW
Tail
B-50023
Type
A20N
Broadcasting now · callsign TTW262 · 19,900 ft
Flights observed
451
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 08:35 UTC

Current position

899059 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 899059 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
TTW211 - 16 2026-07-12
TTW711 - 15 2026-07-14
TTW603 - 14 2026-07-09
TTW288 Tigerair Taiwan 13 2026-07-20
TTW213 - 13 2026-07-06
TTW237 Tigerair Taiwan 12 2026-07-22
TTW210 - 12 2026-07-09
TTW710 - 11 2026-07-14
TTW285 Tigerair Taiwan 11 2026-07-25
TTW284 Tigerair Taiwan 11 2026-07-24
TTW602 - 10 2026-07-09
TTW231 Tigerair Taiwan 10 2026-07-23
TTW215 Tigerair Taiwan 10 2026-07-23
TTW212 - 10 2026-07-06
TTW201 - 10 2026-07-02
TTW715 - 9 2026-07-05
TTW240 Tigerair Taiwan 9 2026-06-24
TTW552 Tigerair Taiwan 8 2026-07-21
TTW241 - 8 2026-06-25
TTW236 Tigerair Taiwan 8 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TTW281 NRT → KHH Jul 26, 05:05 UTCJul 26, 08:30 UTC3h 26m
2026-07-26 TTW280 KHH → NRT Jul 26, 00:20 UTCJul 26, 03:40 UTC3h 20m
2026-07-25 TTW269 NGO → KHH Jul 25, 11:35 UTCJul 25, 14:20 UTC2h 45m
2026-07-25 TTW268 KHH → NGO Jul 25, 07:30 UTCJul 25, 10:05 UTC2h 35m
2026-07-25 TTW285 KIX → KHH Jul 25, 03:15 UTCJul 25, 06:05 UTC2h 50m
2026-07-24 TTW284 KHH → KIX Jul 24, 23:15 UTCJul 25, 01:50 UTC2h 35m
2026-07-24 TTW271 FUK → KHH Jul 24, 10:30 UTCJul 24, 12:45 UTC2h 15m
2026-07-24 TTW270 KHH → FUK Jul 24, 07:00 UTCJul 24, 09:00 UTC2h 0m
2026-07-24 TTW285 KIX → KHH Jul 24, 03:05 UTCJul 24, 05:45 UTC2h 40m
2026-07-23 TTW284 KHH → KIX Jul 23, 22:55 UTCJul 24, 01:30 UTC2h 35m
2026-07-23 TTW289 OKA → KHH Jul 23, 14:50 UTCJul 23, 15:10 UTC20m
2026-07-23 TTW232 TPE → OKA Jul 23, 11:50 UTCJul 23, 12:10 UTC20m
2026-07-23 TTW215 OKJ → TPE Jul 23, 09:20 UTCJul 23, 09:40 UTC20m
2026-07-23 TTW215 OKJ → TPE Jul 23, 07:25 UTCJul 23, 08:05 UTC40m
2026-07-23 TTW214 TPE → OKJ Jul 23, 04:05 UTCJul 23, 06:10 UTC2h 5m
2026-07-23 TTW231 OKA → TPE Jul 23, 02:10 UTCJul 23, 02:40 UTC30m
2026-07-22 TTW230 TPE → OKA Jul 22, 23:10 UTCJul 23, 00:15 UTC1h 5m
2026-07-22 TTW237 HKD → TPE Jul 22, 04:20 UTCJul 22, 05:25 UTC1h 5m
2026-07-21 TTW236 TPE → HKD Jul 21, 23:30 UTCJul 22, 02:55 UTC3h 25m
2026-07-21 TTW552 DAD → TPE Jul 21, 09:55 UTCJul 21, 15:25 UTC5h 30m
2026-07-21 TTW281 NRT → KHH Jul 21, 05:10 UTCJul 21, 08:35 UTC3h 25m
2026-07-21 TTW280 KHH → NRT Jul 21, 00:25 UTCJul 21, 03:45 UTC3h 20m
2026-07-20 TTW670 KHH → CJU Jul 20, 07:55 UTCJul 20, 12:45 UTC4h 50m
2026-07-20 TTW289 OKA → KHH Jul 20, 06:05 UTCJul 20, 06:30 UTC25m
2026-07-20 TTW288 KHH → OKA Jul 20, 03:20 UTCJul 20, 03:35 UTC15m
2026-07-20 TTW288 KHH → OKA Jul 20, 02:10 UTCJul 20, 02:50 UTC40m
2026-07-19 TTW281 NRT → KHH Jul 19, 05:00 UTCJul 19, 08:30 UTC3h 30m
2026-07-19 TTW280 KHH → NRT Jul 19, 00:15 UTCJul 19, 03:40 UTC3h 25m
2026-07-18 TTW551 - Jul 18, 08:40 UTCJul 18, 14:05 UTC5h 25m
2026-07-18 TTW251 - Jul 18, 06:50 UTCJul 18, 07:10 UTC20m
2026-07-18 TTW251 - Jul 18, 05:20 UTCJul 18, 05:50 UTC30m
2026-07-18 TTW250 - Jul 18, 01:39 UTCJul 18, 02:35 UTC55m
2026-07-18 TTW250 - Jul 18, 00:55 UTCJul 18, 01:05 UTC10m
2026-07-17 TTW237 - Jul 17, 07:25 UTCJul 17, 08:00 UTC35m
2026-07-17 TTW237 - Jul 17, 04:29 UTCJul 17, 06:29 UTC2h 0m
2026-07-16 TTW236 TPE → HKD Jul 16, 23:29 UTCJul 17, 02:54 UTC3h 25m
2026-07-16 TTW233 - Jul 16, 10:45 UTCJul 16, 10:59 UTC15m
2026-07-16 TTW796 - Jul 16, 08:45 UTCJul 16, 08:55 UTC10m
2026-07-16 TTW796 - Jul 16, 07:30 UTCJul 16, 08:05 UTC35m
2026-07-16 TTW797 - Jul 16, 05:20 UTCJul 16, 05:55 UTC35m
2026-07-16 TTW288 - Jul 16, 01:35 UTCJul 16, 02:00 UTC25m
2026-07-15 TTW586 KHH → KHH Jul 15, 08:05 UTCJul 15, 13:35 UTC5h 30m
2026-07-15 TTW281 NRT → KHH Jul 15, 03:25 UTCJul 15, 06:35 UTC3h 10m
2026-07-15 TTW200 - Jul 15, 00:35 UTCJul 15, 02:00 UTC1h 25m
2026-07-14 TTW200 - Jul 14, 22:55 UTCJul 14, 23:10 UTC15m
2026-07-14 TTW701 NRT → TPE Jul 14, 12:50 UTCJul 14, 15:40 UTC2h 50m
2026-07-14 TTW700 TPE → NRT Jul 14, 08:30 UTCJul 14, 11:35 UTC3h 5m
2026-07-14 TTW711 - Jul 14, 03:50 UTCJul 14, 06:10 UTC2h 20m
2026-07-14 TTW710 TPE → KIX Jul 14, 00:20 UTCJul 14, 02:35 UTC2h 15m
2026-07-13 TTW237 - Jul 13, 04:10 UTCJul 13, 07:45 UTC3h 35m

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-50023 page for operator, model, and routing details .

Mode-S 899059 frequently asked

What is Mode-S code 899059?
899059 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-50023.
Where is Mode-S 899059 registered?
Mode-S code 899059 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899059 broadcasting right now?
Yes. Mode-S 899059 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899059, octal 42310131, decimal 9,015,385.
What flights does 899059 operate?
Mode-S 899059 has broadcast 20 distinct callsigns, including TTW211, TTW711, TTW603, TTW288, TTW213.