sensors Mode-S transponder

89909C

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-17808 · BOEING 787-10 Dreamliner

Hex
89909C
Octal
42310234
Decimal
9,015,452
Country
TW
Tail
B-17808
Type
B78X
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
3
Country
TW
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 89909C.

Country allocation

The ICAO 24-bit address 89909C 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 3 distinct

Callsign Airline Flights Last seen
EVA191 EVA Air 3 2026-04-13
EVA190 - 2 2026-04-13
EVA192 EVA Air 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 EVA190 - Apr 13, 10:25 UTCApr 13, 11:05 UTC40m
2026-04-13 EVA190 - Apr 13, 08:35 UTCApr 13, 08:45 UTC10m
2026-04-13 EVA191 HND → TSA Apr 13, 06:50 UTCApr 13, 07:00 UTC10m
2026-04-13 EVA191 HND → TSA Apr 13, 04:20 UTCApr 13, 04:40 UTC20m
2026-04-13 EVA191 HND → TSA Apr 13, 04:05 UTCApr 13, 04:15 UTC10m
2026-04-13 EVA192 TSA → HND Apr 13, 01:25 UTCApr 13, 02:10 UTC45m

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-17808 page for operator, model, and routing details .

Mode-S 89909C frequently asked

What is Mode-S code 89909C?
89909C is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-17808.
Where is Mode-S 89909C registered?
Mode-S code 89909C is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 89909C broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 89909C, octal 42310234, decimal 9,015,452.
What flights does 89909C operate?
Mode-S 89909C has broadcast 3 distinct callsigns, including EVA191, EVA190, EVA192.