sensors Mode-S transponder

899055

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16213 · AIRBUS A-321

Hex
899055
Octal
42310125
Decimal
9,015,381
Country
TW
Tail
B-16213
Type
A321
No current signal · last broadcast 23h ago
Flights observed
10
Distinct callsigns
4
Country
TW
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 899055.

Country allocation

The ICAO 24-bit address 899055 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 4 distinct

Callsign Airline Flights Last seen
EVA258 EVA Air 4 2026-04-14
EVA809 - 3 2026-04-13
EVA257 - 2 2026-04-13
EVA810 - 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 EVA258 CNX → TPE Apr 14, 07:10 UTCApr 14, 08:05 UTC55m
2026-04-14 EVA258 CNX → TPE Apr 14, 06:35 UTCApr 14, 07:10 UTC35m
2026-04-13 EVA810 HKG → TPE Apr 13, 14:15 UTCApr 13, 15:35 UTC1h 20m
2026-04-13 EVA809 - Apr 13, 12:20 UTCApr 13, 12:35 UTC15m
2026-04-13 EVA809 - Apr 13, 12:05 UTCApr 13, 12:35 UTC30m
2026-04-13 EVA809 - Apr 13, 11:15 UTCApr 13, 12:15 UTC1h 0m
2026-04-13 EVA258 - Apr 13, 07:55 UTCApr 13, 08:25 UTC30m
2026-04-13 EVA258 - Apr 13, 07:00 UTCApr 13, 08:15 UTC1h 15m
2026-04-13 EVA257 - Apr 13, 03:40 UTCApr 13, 03:50 UTC10m
2026-04-13 EVA257 - Apr 13, 00:20 UTCApr 13, 01:35 UTC1h 15m

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-16213 page for operator, model, and routing details .

Mode-S 899055 frequently asked

What is Mode-S code 899055?
899055 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16213.
Where is Mode-S 899055 registered?
Mode-S code 899055 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899055 broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899055, octal 42310125, decimal 9,015,381.
What flights does 899055 operate?
Mode-S 899055 has broadcast 4 distinct callsigns, including EVA258, EVA809, EVA257, EVA810.