sensors Mode-S transponder

89914C

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16857 · ATR-72-600

Hex
89914C
Octal
42310514
Decimal
9,015,628
Country
TW
Tail
B-16857
Type
AT76
No current signal · last broadcast 21h ago
Flights observed
12
Distinct callsigns
11
Country
TW
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 89914C.

Country allocation

The ICAO 24-bit address 89914C 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 11 distinct

Callsign Airline Flights Last seen
MDA337 - 2 2026-04-13
MDA345 - 1 2026-04-14
MDA342 - 1 2026-04-13
MDA341 - 1 2026-04-13
MDA338 - 1 2026-04-13
MDA334 - 1 2026-04-13
MDA333 Mandarin Airlines 1 2026-04-13
MDA310 - 1 2026-04-13
MDA309 - 1 2026-04-13
MDA308 - 1 2026-04-14
MDA307 Mandarin Airlines 1 2026-04-14

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 MDA345 - Apr 14, 09:20 UTCApr 14, 09:50 UTC30m
2026-04-14 MDA308 - Apr 14, 07:55 UTCApr 14, 08:15 UTC20m
2026-04-14 MDA307 KHH → KNH Apr 14, 05:50 UTCApr 14, 06:15 UTC25m
2026-04-13 MDA310 - Apr 13, 11:55 UTCApr 13, 12:15 UTC20m
2026-04-13 MDA309 - Apr 13, 09:35 UTCApr 13, 09:55 UTC20m
2026-04-13 MDA342 - Apr 13, 08:20 UTCApr 13, 08:45 UTC25m
2026-04-13 MDA341 - Apr 13, 06:55 UTCApr 13, 07:20 UTC25m
2026-04-13 MDA338 - Apr 13, 05:15 UTCApr 13, 05:45 UTC30m
2026-04-13 MDA337 - Apr 13, 03:55 UTCApr 13, 04:15 UTC20m
2026-04-13 MDA337 - Apr 13, 03:40 UTCApr 13, 04:15 UTC35m
2026-04-13 MDA334 - Apr 13, 02:20 UTCApr 13, 02:45 UTC25m
2026-04-13 MDA333 KHH → MZG Apr 13, 00:55 UTCApr 13, 01:35 UTC40m

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-16857 page for operator, model, and routing details .

Mode-S 89914C frequently asked

What is Mode-S code 89914C?
89914C is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16857.
Where is Mode-S 89914C registered?
Mode-S code 89914C is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 89914C broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 89914C, octal 42310514, decimal 9,015,628.
What flights does 89914C operate?
Mode-S 89914C has broadcast 11 distinct callsigns, including MDA337, MDA345, MDA342, MDA341, MDA338.