Apparatus

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sensors Mode-S transponder

899146

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-17011 · ATR-72-600

Hex
899146
Octal
42310506
Decimal
9,015,622
Country
TW
Tail
B-17011
Type
AT76
No current signal · last broadcast Jul 26, 11:10 UTC
Flights observed
820
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 11:10 UTC

Last known position

Most recent position reported by Mode-S 899146.

Country allocation

The ICAO 24-bit address 899146 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
UIA9161 - 14 2026-07-04
UIA9162 - 13 2026-07-05
UIA8715 - 12 2026-07-07
UIA8712 - 12 2026-07-16
UIA8707 - 12 2026-07-16
UIA8662 - 12 2026-07-16
UIA8661 - 12 2026-07-16
UIA8918 - 11 2026-07-02
UIA8917 - 11 2026-07-02
UIA8718 - 11 2026-07-05
UIA8717 - 11 2026-07-16
UIA8637 - 11 2026-07-14
UIA8952 - 10 2026-07-14
UIA8638 - 10 2026-07-14
UIA8965 - 9 2026-07-15
UIA8962 - 9 2026-07-14
UIA8961 - 9 2026-07-14
UIA8957 - 9 2026-07-15
UIA8951 - 9 2026-07-13
UIA8776 Uni Air 9 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UIA8776 LZN → TSA Jul 26, 10:45 UTCJul 26, 11:05 UTC20m
2026-07-26 UIA8775 TSA → LZN Jul 26, 09:15 UTCJul 26, 09:30 UTC15m
2026-07-26 UIA8786 - Jul 26, 08:00 UTCJul 26, 08:25 UTC25m
2026-07-26 UIA8785 - Jul 26, 06:25 UTCJul 26, 06:40 UTC16m
2026-07-26 UIA8758 - Jul 26, 05:00 UTCJul 26, 05:20 UTC20m
2026-07-26 UIA8757 - Jul 26, 03:15 UTCJul 26, 03:30 UTC15m
2026-07-26 UIA8606 MZG → TSA Jul 26, 01:45 UTCJul 26, 02:25 UTC40m
2026-07-26 UIA8605 TSA → MZG Jul 26, 00:05 UTCJul 26, 00:50 UTC45m
2026-07-25 UIA8620 MZG → TSA Jul 25, 12:05 UTCJul 25, 12:45 UTC40m
2026-07-25 UIA8627 TSA → MZG Jul 25, 10:40 UTCJul 25, 11:25 UTC45m
2026-07-25 UIA8790 MFK → TSA Jul 25, 09:20 UTCJul 25, 09:40 UTC20m
2026-07-25 UIA8789 TSA → MFK Jul 25, 07:40 UTCJul 25, 08:05 UTC25m
2026-07-25 UIA8760 LZN → TSA Jul 25, 06:35 UTCJul 25, 06:55 UTC20m
2026-07-25 UIA8759 TSA → LZN Jul 25, 04:50 UTCJul 25, 05:15 UTC25m
2026-07-25 UIA8756 LZN → TSA Jul 25, 03:30 UTCJul 25, 04:00 UTC30m
2026-07-25 UIA8755 TSA → LZN Jul 25, 01:55 UTCJul 25, 02:25 UTC30m
2026-07-25 UIA8752 LZN → TSA Jul 25, 00:30 UTCJul 25, 00:45 UTC15m
2026-07-24 UIA8751 TSA → LZN Jul 24, 22:45 UTCJul 24, 23:10 UTC25m
2026-07-24 UIA8728 TTT → TSA Jul 24, 12:25 UTCJul 24, 12:40 UTC15m
2026-07-24 UIA8727 TSA → TTT Jul 24, 09:10 UTCJul 24, 09:30 UTC20m
2026-07-24 UIA8726 TTT → TSA Jul 24, 08:10 UTCJul 24, 08:20 UTC10m
2026-07-24 UIA8725 TSA → TTT Jul 24, 05:55 UTCJul 24, 06:15 UTC20m
2026-07-24 UIA8722 TTT → TSA Jul 24, 04:25 UTCJul 24, 04:35 UTC10m
2026-07-24 UIA8721 TSA → TTT Jul 24, 02:15 UTCJul 24, 02:30 UTC15m
2026-07-24 UIA8782 MFK → TSA Jul 24, 00:35 UTCJul 24, 01:15 UTC40m
2026-07-23 UIA8781 TSA → MFK Jul 23, 22:55 UTCJul 23, 23:10 UTC15m
2026-07-23 UIA8830 - Jul 23, 12:15 UTCJul 23, 12:55 UTC40m
2026-07-23 UIA8829 - Jul 23, 09:50 UTCJul 23, 10:35 UTC45m
2026-07-23 UIA8772 LZN → TSA Jul 23, 08:30 UTCJul 23, 08:40 UTC10m
2026-07-23 UIA8771 TSA → LZN Jul 23, 06:50 UTCJul 23, 07:05 UTC15m
2026-07-23 UIA8612 - Jul 23, 05:05 UTCJul 23, 05:55 UTC50m
2026-07-23 UIA8611 TSA → MZG Jul 23, 03:35 UTCJul 23, 04:15 UTC40m
2026-07-23 UIA9192 KNH → TSA Jul 23, 02:10 UTCJul 23, 02:45 UTC35m
2026-07-22 UIA9191 TSA → KNH Jul 22, 23:45 UTCJul 23, 00:30 UTC45m
2026-07-22 UIA8620 MZG → TSA Jul 22, 12:10 UTCJul 22, 12:45 UTC35m
2026-07-22 UIA8627 - Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-22 UIA8701 KHH → MZG Jul 22, 04:35 UTCJul 22, 05:05 UTC30m
2026-07-22 UIA8696 MZG → KHH Jul 22, 03:10 UTCJul 22, 03:25 UTC15m
2026-07-22 UIA8695 KHH → MZG Jul 22, 01:50 UTCJul 22, 02:20 UTC30m
2026-07-22 UIA8690 MZG → KHH Jul 22, 00:35 UTCJul 22, 00:50 UTC15m
2026-07-21 UIA8689 - Jul 21, 23:15 UTCJul 21, 23:40 UTC25m
2026-07-21 UIA8928 - Jul 21, 12:05 UTCJul 21, 12:20 UTC15m
2026-07-21 UIA8829 - Jul 21, 09:40 UTCJul 21, 10:20 UTC40m
2026-07-21 UIA8772 - Jul 21, 08:40 UTCJul 21, 08:50 UTC10m
2026-07-21 UIA8771 - Jul 21, 07:05 UTCJul 21, 07:35 UTC30m
2026-07-21 UIA8612 - Jul 21, 05:05 UTCJul 21, 05:55 UTC50m
2026-07-21 UIA8611 - Jul 21, 03:45 UTCJul 21, 04:25 UTC40m
2026-07-21 UIA8606 MZG → TSA Jul 21, 01:35 UTCJul 21, 02:50 UTC1h 15m
2026-07-21 UIA8605 TSA → MZG Jul 21, 00:05 UTCJul 21, 00:45 UTC40m
2026-07-20 UIA8628 - Jul 20, 12:55 UTCJul 20, 13:30 UTC35m

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-17011 page for operator, model, and routing details .

Mode-S 899146 frequently asked

What is Mode-S code 899146?
899146 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-17011.
Where is Mode-S 899146 registered?
Mode-S code 899146 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899146 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 11:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899146, octal 42310506, decimal 9,015,622.
What flights does 899146 operate?
Mode-S 899146 has broadcast 20 distinct callsigns, including UIA9161, UIA9162, UIA8715, UIA8712, UIA8707.