sensors Mode-S transponder

89904F

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16209 · AIRBUS A-321

Hex
89904F
Octal
42310117
Decimal
9,015,375
Country
TW
Tail
B-16209
Type
A321
No current signal · last broadcast 20h ago
Flights observed
8
Distinct callsigns
6
Country
TW
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 89904F.

Country allocation

The ICAO 24-bit address 89904F 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 6 distinct

Callsign Airline Flights Last seen
EVA181 - 2 2026-04-13
EVA107 EVA Air 2 2026-04-14
EVA849 - 1 2026-04-14
EVA706 - 1 2026-04-13
EVA705 - 1 2026-04-13
EVA108 EVA Air 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 EVA849 - Apr 14, 09:10 UTCApr 14, 10:25 UTC1h 15m
2026-04-14 EVA107 NRT → KHH Apr 14, 07:15 UTCApr 14, 07:45 UTC30m
2026-04-14 EVA107 NRT → KHH Apr 14, 06:10 UTCApr 14, 06:35 UTC25m
2026-04-13 EVA108 KHH → NRT Apr 13, 23:05 UTCApr 13, 23:40 UTC35m
2026-04-13 EVA705 - Apr 13, 13:15 UTCApr 13, 13:55 UTC40m
2026-04-13 EVA706 - Apr 13, 09:20 UTCApr 13, 09:55 UTC35m
2026-04-13 EVA181 - Apr 13, 05:30 UTCApr 13, 06:35 UTC1h 5m
2026-04-13 EVA181 - Apr 13, 03:30 UTCApr 13, 03:40 UTC10m

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-16209 page for operator, model, and routing details .

Mode-S 89904F frequently asked

What is Mode-S code 89904F?
89904F is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16209.
Where is Mode-S 89904F registered?
Mode-S code 89904F is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 89904F broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 89904F, octal 42310117, decimal 9,015,375.
What flights does 89904F operate?
Mode-S 89904F has broadcast 6 distinct callsigns, including EVA181, EVA107, EVA849, EVA706, EVA705.