Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

899143

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-17008 · ATR-72-600

Hex
899143
Octal
42310503
Decimal
9,015,619
Country
TW
Tail
B-17008
Type
AT76
No current signal · last broadcast Jul 25, 10:00 UTC
Flights observed
828
Distinct callsigns
20
Country
TW
Last broadcast
Jul 25, 10:00 UTC

Last known position

Most recent position reported by Mode-S 899143.

Country allocation

The ICAO 24-bit address 899143 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 20 distinct

Callsign Airline Flights Last seen
UIA8918 Uni Air 14 2026-07-24
UIA8917 Uni Air 14 2026-07-24
UIA8712 Uni Air 13 2026-07-21
UIA8691 Uni Air 13 2026-07-25
UIA8662 - 13 2026-07-21
UIA8661 Uni Air 13 2026-07-21
UIA9162 Uni Air 12 2026-07-24
UIA8928 Uni Air 12 2026-07-22
UIA8710 Uni Air 12 2026-07-24
UIA8707 - 12 2026-07-21
UIA8683 Uni Air 12 2026-07-24
UIA8682 Uni Air 12 2026-07-24
UIA9161 Uni Air 11 2026-07-23
UIA8985 - 11 2026-06-18
UIA8982 - 11 2026-06-18
UIA8716 - 11 2026-07-16
UIA8692 Uni Air 11 2026-07-25
UIA8991 - 10 2026-06-18
UIA8986 - 10 2026-06-18
UIA8927 - 10 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 UIA9196 KNH → TSA Jul 25, 09:15 UTCJul 25, 09:55 UTC40m
2026-07-25 UIA9195 TSA → KNH Jul 25, 07:05 UTCJul 25, 07:45 UTC40m
2026-07-25 UIA8616 MZG → TSA Jul 25, 05:25 UTCJul 25, 06:10 UTC45m
2026-07-25 UIA8697 KHH → MZG Jul 25, 03:45 UTCJul 25, 04:15 UTC30m
2026-07-25 UIA8692 MZG → KHH Jul 25, 01:20 UTCJul 25, 01:50 UTC30m
2026-07-25 UIA8691 KHH → MZG Jul 25, 00:10 UTCJul 25, 00:35 UTC25m
2026-07-24 UIA8710 MZG → KHH Jul 24, 11:30 UTCJul 24, 11:55 UTC25m
2026-07-24 UIA8683 TNN → MZG Jul 24, 10:30 UTCJul 24, 10:45 UTC15m
2026-07-24 UIA8682 MZG → TNN Jul 24, 09:15 UTCJul 24, 09:40 UTC25m
2026-07-24 UIA8709 KHH → MZG Jul 24, 08:10 UTCJul 24, 08:35 UTC25m
2026-07-24 UIA8698 MZG → KHH Jul 24, 06:45 UTCJul 24, 07:10 UTC25m
2026-07-24 UIA8697 KHH → MZG Jul 24, 05:35 UTCJul 24, 06:00 UTC25m
2026-07-24 UIA8918 KNH → KHH Jul 24, 04:20 UTCJul 24, 04:45 UTC25m
2026-07-24 UIA8917 KHH → KNH Jul 24, 02:10 UTCJul 24, 02:35 UTC25m
2026-07-24 UIA9162 MZG → KHH Jul 24, 00:55 UTCJul 24, 01:15 UTC20m
2026-07-23 UIA9161 KHH → MZG Jul 23, 23:40 UTCJul 24, 00:05 UTC25m
2026-07-23 UIA9178 - Jul 23, 10:40 UTCJul 23, 11:00 UTC20m
2026-07-23 UIA9157 - Jul 23, 09:20 UTCJul 23, 09:45 UTC25m
2026-07-23 UIA9158 MZG → RMQ Jul 23, 07:55 UTCJul 23, 08:10 UTC15m
2026-07-23 UIA9177 KHH → MZG Jul 23, 06:35 UTCJul 23, 07:00 UTC25m
2026-07-23 UIA9056 - Jul 23, 04:50 UTCJul 23, 05:45 UTC55m
2026-07-23 UIA9055 - Jul 23, 02:40 UTCJul 23, 03:30 UTC50m
2026-07-23 UIA8692 MZG → KHH Jul 23, 01:30 UTCJul 23, 01:50 UTC20m
2026-07-23 UIA8691 KHH → MZG Jul 23, 00:10 UTCJul 23, 00:35 UTC25m
2026-07-22 UIA8928 KNH → KHH Jul 22, 12:35 UTCJul 22, 13:00 UTC25m
2026-07-22 UIA8918 KNH → KHH Jul 22, 04:15 UTCJul 22, 04:40 UTC25m
2026-07-22 UIA8917 KHH → KNH Jul 22, 02:15 UTCJul 22, 02:35 UTC20m
2026-07-22 UIA9162 MZG → KHH Jul 22, 01:00 UTCJul 22, 01:20 UTC20m
2026-07-21 UIA9161 KHH → MZG Jul 21, 23:40 UTCJul 22, 00:15 UTC35m
2026-07-21 UIA9228 KNH → KHH Jul 21, 13:30 UTCJul 21, 13:50 UTC20m
2026-07-21 UIA9227 KHH → KNH Jul 21, 11:25 UTCJul 21, 11:50 UTC25m
2026-07-21 UIA8712 MZG → KHH Jul 21, 10:05 UTCJul 21, 10:30 UTC25m
2026-07-21 UIA8661 CYI → MZG Jul 21, 08:40 UTCJul 21, 09:00 UTC20m
2026-07-21 UIA8662 - Jul 21, 07:10 UTCJul 21, 07:25 UTC15m
2026-07-21 UIA8707 - Jul 21, 05:55 UTCJul 21, 06:20 UTC25m
2026-07-21 UIA8918 - Jul 21, 04:35 UTCJul 21, 05:00 UTC25m
2026-07-21 UIA8917 - Jul 21, 02:20 UTCJul 21, 02:50 UTC30m
2026-07-21 UIA9162 - Jul 21, 01:00 UTCJul 21, 01:25 UTC25m
2026-07-20 UIA9161 KHH → MZG Jul 20, 23:45 UTCJul 21, 00:15 UTC30m
2026-07-20 UIA8710 - Jul 20, 11:20 UTCJul 20, 11:40 UTC20m
2026-07-20 UIA8683 - Jul 20, 10:15 UTCJul 20, 10:35 UTC20m
2026-07-20 UIA8682 MZG → TNN Jul 20, 08:55 UTCJul 20, 09:15 UTC20m
2026-07-20 UIA8709 KHH → MZG Jul 20, 07:50 UTCJul 20, 08:15 UTC25m
2026-07-20 UIA8920 KNH → KHH Jul 20, 06:45 UTCJul 20, 07:00 UTC15m
2026-07-20 UIA8919 KHH → KNH Jul 20, 04:45 UTCJul 20, 05:15 UTC30m
2026-07-20 UIA8912 KNH → KHH Jul 20, 03:10 UTCJul 20, 03:50 UTC40m
2026-07-20 UIA8911 - Jul 20, 00:35 UTCJul 20, 01:00 UTC25m
2026-07-19 UIA8718 - Jul 19, 12:50 UTCJul 19, 13:10 UTC20m
2026-07-19 UIA8651 - Jul 19, 11:35 UTCJul 19, 12:00 UTC25m
2026-07-19 UIA8640 - Jul 19, 10:15 UTCJul 19, 10:40 UTC25m

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-17008 page for operator, model, and routing details .

Mode-S 899143 frequently asked

What is Mode-S code 899143?
899143 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-17008.
Where is Mode-S 899143 registered?
Mode-S code 899143 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899143 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 10:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899143, octal 42310503, decimal 9,015,619.
What flights does 899143 operate?
Mode-S 899143 has broadcast 20 distinct callsigns, including UIA8918, UIA8917, UIA8712, UIA8691, UIA8662.