sensors Mode-S transponder

89914D

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16858 · ATR-72-600

Hex
89914D
Octal
42310515
Decimal
9,015,629
Country
TW
Tail
B-16858
Type
AT76
Broadcasting now · callsign MDA1273 · 13,800 ft
Flights observed
7
Distinct callsigns
7
Country
TW
Last broadcast
20h ago

Current position

89914D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 89914D 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 7 distinct

Callsign Airline Flights Last seen
MDA396 - 1 2026-04-13
MDA395 - 1 2026-04-13
MDA372 - 1 2026-04-14
MDA371 Mandarin Airlines 1 2026-04-14
MDA1277 - 1 2026-04-14
MDA1272 - 1 2026-04-13
MDA1271 Mandarin Airlines 1 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 MDA1277 - Apr 14, 09:50 UTCApr 14, 10:40 UTC50m
2026-04-14 MDA372 - Apr 14, 07:35 UTCApr 14, 08:30 UTC55m
2026-04-14 MDA371 TSA → MZG Apr 14, 05:55 UTCApr 14, 06:35 UTC40m
2026-04-13 MDA396 - Apr 13, 12:05 UTCApr 13, 12:15 UTC10m
2026-04-13 MDA395 - Apr 13, 09:55 UTCApr 13, 10:05 UTC10m
2026-04-13 MDA1272 - Apr 13, 08:30 UTCApr 13, 09:05 UTC35m
2026-04-13 MDA1271 TSA → KNH Apr 13, 06:05 UTCApr 13, 06:55 UTC50m

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-16858 page for operator, model, and routing details .

Mode-S 89914D frequently asked

What is Mode-S code 89914D?
89914D is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16858.
Where is Mode-S 89914D registered?
Mode-S code 89914D is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 89914D broadcasting right now?
Yes. Mode-S 89914D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 89914D, octal 42310515, decimal 9,015,629.
What flights does 89914D operate?
Mode-S 89914D has broadcast 7 distinct callsigns, including MDA396, MDA395, MDA372, MDA371, MDA1277.