Apparatus

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sensors Mode-S transponder

899140

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-17005 · ATR-72-600

Hex
899140
Octal
42310500
Decimal
9,015,616
Country
TW
Tail
B-17005
Type
AT76
No current signal · last broadcast Jul 26, 12:20 UTC
Flights observed
748
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 12:20 UTC

Last known position

Most recent position reported by Mode-S 899140.

Country allocation

The ICAO 24-bit address 899140 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
UIA8727 - 15 2026-07-16
UIA8725 - 15 2026-07-16
UIA8728 - 14 2026-07-16
UIA8726 - 13 2026-07-08
UIA8721 - 13 2026-07-16
UIA8722 - 12 2026-07-16
UIA8957 - 11 2026-07-12
UIA8992 Uni Air 10 2026-07-20
UIA8985 Uni Air 10 2026-07-20
UIA8982 Uni Air 10 2026-07-20
UIA8966 - 10 2026-07-12
UIA8965 - 10 2026-07-12
UIA8781 - 10 2026-07-15
UIA8757 - 10 2026-07-22
UIA8675 - 10 2026-07-20
UIA8640 - 10 2026-07-09
UIA8639 - 10 2026-07-12
UIA8635 - 10 2026-07-14
UIA9091 Uni Air 9 2026-07-21
UIA8958 - 9 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UIA8656 MZG → RMQ Jul 26, 11:55 UTCJul 26, 12:20 UTC25m
2026-07-26 UIA8715 KHH → MZG Jul 26, 10:10 UTCJul 26, 10:40 UTC30m
2026-07-26 UIA8922 KNH → KHH Jul 26, 08:35 UTCJul 26, 08:55 UTC20m
2026-07-26 UIA8921 KHH → KNH Jul 26, 06:25 UTCJul 26, 06:50 UTC26m
2026-07-26 UIA8698 MZG → KHH Jul 26, 05:05 UTCJul 26, 05:25 UTC20m
2026-07-26 UIA8697 KHH → MZG Jul 26, 03:50 UTCJul 26, 04:15 UTC25m
2026-07-26 UIA8692 MZG → KHH Jul 26, 01:25 UTCJul 26, 01:50 UTC25m
2026-07-26 UIA8691 KHH → MZG Jul 26, 00:10 UTCJul 26, 00:40 UTC30m
2026-07-25 UIA9228 KNH → KHH Jul 25, 13:25 UTCJul 25, 13:40 UTC15m
2026-07-25 UIA9227 KHH → KNH Jul 25, 11:20 UTCJul 25, 11:45 UTC25m
2026-07-25 UIA8712 MZG → KHH Jul 25, 10:00 UTCJul 25, 10:25 UTC25m
2026-07-25 UIA8661 CYI → MZG Jul 25, 08:40 UTCJul 25, 09:05 UTC25m
2026-07-25 UIA8662 MZG → CYI Jul 25, 07:15 UTCJul 25, 07:30 UTC15m
2026-07-25 UIA8707 KHH → MZG Jul 25, 05:55 UTCJul 25, 06:25 UTC30m
2026-07-25 UIA8918 KNH → KHH Jul 25, 04:30 UTCJul 25, 04:55 UTC25m
2026-07-25 UIA8917 KHH → KNH Jul 25, 02:10 UTCJul 25, 02:30 UTC20m
2026-07-25 UIA9162 MZG → KHH Jul 25, 00:50 UTCJul 25, 01:20 UTC30m
2026-07-24 UIA9161 KHH → MZG Jul 24, 23:40 UTCJul 25, 00:10 UTC30m
2026-07-24 UIA8716 MZG → KHH Jul 24, 12:05 UTCJul 24, 12:30 UTC25m
2026-07-24 UIA8715 KHH → MZG Jul 24, 10:50 UTCJul 24, 11:10 UTC20m
2026-07-24 UIA8922 KNH → KHH Jul 24, 09:35 UTCJul 24, 09:55 UTC20m
2026-07-24 UIA8921 KHH → KNH Jul 24, 07:45 UTCJul 24, 08:10 UTC25m
2026-07-24 UIA8920 KNH → KHH Jul 24, 06:30 UTCJul 24, 06:50 UTC20m
2026-07-24 UIA8919 KHH → KNH Jul 24, 04:20 UTCJul 24, 04:45 UTC25m
2026-07-24 UIA8912 KNH → KHH Jul 24, 03:05 UTCJul 24, 03:25 UTC20m
2026-07-24 UIA8911 KHH → KNH Jul 24, 00:40 UTCJul 24, 01:00 UTC20m
2026-07-23 UIA8710 MZG → KHH Jul 23, 11:20 UTCJul 23, 11:50 UTC30m
2026-07-23 UIA8683 TNN → MZG Jul 23, 10:15 UTCJul 23, 10:35 UTC20m
2026-07-23 UIA8682 MZG → TNN Jul 23, 08:55 UTCJul 23, 09:20 UTC25m
2026-07-23 UIA8709 KHH → MZG Jul 23, 07:35 UTCJul 23, 07:55 UTC20m
2026-07-23 UIA8920 KNH → KHH Jul 23, 06:15 UTCJul 23, 06:40 UTC25m
2026-07-23 UIA8919 KHH → KNH Jul 23, 04:15 UTCJul 23, 04:45 UTC30m
2026-07-23 UIA8912 KNH → KHH Jul 23, 03:00 UTCJul 23, 03:20 UTC20m
2026-07-23 UIA8911 KHH → KNH Jul 23, 00:40 UTCJul 23, 01:10 UTC30m
2026-07-22 UIA8718 - Jul 22, 12:50 UTCJul 22, 13:05 UTC15m
2026-07-22 UIA8651 - Jul 22, 11:40 UTCJul 22, 12:00 UTC20m
2026-07-22 UIA8758 - Jul 22, 04:30 UTCJul 22, 04:50 UTC20m
2026-07-22 UIA8757 - Jul 22, 02:40 UTCJul 22, 03:10 UTC30m
2026-07-22 UIA9092 LZN → TSA Jul 22, 01:15 UTCJul 22, 01:45 UTC30m
2026-07-21 UIA9091 TSA → LZN Jul 21, 23:40 UTCJul 22, 00:05 UTC25m
2026-07-21 UIA8830 - Jul 21, 12:15 UTCJul 21, 12:50 UTC35m
2026-07-21 UIA8927 KHH → KNH Jul 21, 10:00 UTCJul 21, 10:40 UTC40m
2026-07-21 UIA8702 MZG → KHH Jul 21, 08:35 UTCJul 21, 09:05 UTC30m
2026-07-21 UIA8681 TNN → MZG Jul 21, 07:20 UTCJul 21, 07:50 UTC30m
2026-07-21 UIA8680 MZG → TNN Jul 21, 05:55 UTCJul 21, 06:15 UTC20m
2026-07-21 UIA8701 KHH → MZG Jul 21, 04:35 UTCJul 21, 05:00 UTC25m
2026-07-21 UIA8696 MZG → KHH Jul 21, 03:00 UTCJul 21, 03:30 UTC30m
2026-07-21 UIA8695 KHH → MZG Jul 21, 01:45 UTCJul 21, 02:15 UTC30m
2026-07-21 UIA8690 MZG → KHH Jul 21, 00:30 UTCJul 21, 00:50 UTC20m
2026-07-20 UIA8675 - Jul 20, 23:25 UTCJul 20, 23:45 UTC20m

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-17005 page for operator, model, and routing details .

Mode-S 899140 frequently asked

What is Mode-S code 899140?
899140 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-17005.
Where is Mode-S 899140 registered?
Mode-S code 899140 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899140 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899140, octal 42310500, decimal 9,015,616.
What flights does 899140 operate?
Mode-S 899140 has broadcast 20 distinct callsigns, including UIA8727, UIA8725, UIA8728, UIA8726, UIA8721.