Apparatus

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sensors Mode-S transponder

899141

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-17006 · ATR-72-600

Hex
899141
Octal
42310501
Decimal
9,015,617
Country
TW
Tail
B-17006
Type
AT76
Broadcasting now · callsign UIA8681 · 4,550 ft
Flights observed
817
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 12:40 UTC

Current position

899141 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 899141 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
UIA8955 Uni Air 15 2026-07-25
UIA8736 - 14 2026-07-25
UIA8735 - 14 2026-07-25
UIA8732 Uni Air 13 2026-07-25
UIA8655 Uni Air 13 2026-07-25
UIA8966 Uni Air 12 2026-07-26
UIA8956 Uni Air 12 2026-07-25
UIA8731 Uni Air 12 2026-07-25
UIA8656 Uni Air 12 2026-07-25
UIA8961 Uni Air 11 2026-07-24
UIA8958 Uni Air 11 2026-07-26
UIA8639 Uni Air 11 2026-07-26
UIA8965 Uni Air 10 2026-07-26
UIA8962 Uni Air 10 2026-07-24
UIA8957 Uni Air 10 2026-07-26
UIA8951 Uni Air 10 2026-07-23
UIA8902 - 10 2026-07-19
UIA8901 - 10 2026-07-19
UIA8638 Uni Air 10 2026-07-24
UIA8637 Uni Air 10 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UIA8966 KNH → RMQ Jul 26, 12:20 UTCJul 26, 12:40 UTC20m
2026-07-26 UIA8965 RMQ → KNH Jul 26, 09:35 UTCJul 26, 09:55 UTC20m
2026-07-26 UIA8652 MZG → RMQ Jul 26, 08:00 UTCJul 26, 08:25 UTC25m
2026-07-26 UIA8639 RMQ → MZG Jul 26, 06:45 UTCJul 26, 07:05 UTC20m
2026-07-26 UIA8958 KNH → RMQ Jul 26, 05:25 UTCJul 26, 05:45 UTC20m
2026-07-26 UIA8957 RMQ → KNH Jul 26, 03:10 UTCJul 26, 03:35 UTC25m
2026-07-26 UIA8636 MZG → RMQ Jul 26, 01:50 UTCJul 26, 02:10 UTC20m
2026-07-26 UIA8635 RMQ → MZG Jul 26, 00:25 UTCJul 26, 00:45 UTC20m
2026-07-25 UIA8656 MZG → RMQ Jul 25, 12:05 UTCJul 25, 12:20 UTC15m
2026-07-25 UIA8655 RMQ → MZG Jul 25, 10:40 UTCJul 25, 11:00 UTC20m
2026-07-25 UIA8736 - Jul 25, 09:05 UTCJul 25, 09:30 UTC25m
2026-07-25 UIA8735 - Jul 25, 07:10 UTCJul 25, 07:30 UTC20m
2026-07-25 UIA8732 LZN → RMQ Jul 25, 05:25 UTCJul 25, 05:50 UTC25m
2026-07-25 UIA8731 RMQ → LZN Jul 25, 03:35 UTCJul 25, 04:00 UTC25m
2026-07-25 UIA8956 KNH → RMQ Jul 25, 02:25 UTCJul 25, 02:40 UTC15m
2026-07-25 UIA8955 RMQ → KNH Jul 25, 00:00 UTCJul 25, 00:30 UTC30m
2026-07-24 UIA8962 KNH → RMQ Jul 24, 11:05 UTCJul 24, 11:25 UTC20m
2026-07-24 UIA8925 KHH → KNH Jul 24, 08:45 UTCJul 24, 09:10 UTC25m
2026-07-24 UIA8926 KNH → KHH Jul 24, 07:25 UTCJul 24, 07:45 UTC20m
2026-07-24 UIA8961 RMQ → KNH Jul 24, 05:30 UTCJul 24, 05:50 UTC20m
2026-07-24 UIA8638 MZG → RMQ Jul 24, 04:05 UTCJul 24, 04:25 UTC20m
2026-07-24 UIA8637 RMQ → MZG Jul 24, 02:45 UTCJul 24, 03:10 UTC25m
2026-07-24 UIA8952 KNH → RMQ Jul 24, 01:25 UTCJul 24, 01:45 UTC20m
2026-07-23 UIA8951 RMQ → KNH Jul 23, 23:30 UTCJul 23, 23:55 UTC25m
2026-07-23 UIA8962 KNH → RMQ Jul 23, 10:55 UTCJul 23, 11:05 UTC10m
2026-07-23 UIA8925 KHH → KNH Jul 23, 08:40 UTCJul 23, 09:00 UTC20m
2026-07-23 UIA8926 KNH → KHH Jul 23, 07:25 UTCJul 23, 07:50 UTC25m
2026-07-23 UIA8961 RMQ → KNH Jul 23, 05:25 UTCJul 23, 05:45 UTC20m
2026-07-23 UIA8638 MZG → RMQ Jul 23, 04:05 UTCJul 23, 04:25 UTC20m
2026-07-23 UIA8637 RMQ → MZG Jul 23, 02:55 UTCJul 23, 03:15 UTC20m
2026-07-22 UIA8951 RMQ → KNH Jul 22, 23:25 UTCJul 22, 23:50 UTC25m
2026-07-22 UIA8966 KNH → RMQ Jul 22, 12:25 UTCJul 22, 12:40 UTC15m
2026-07-22 UIA8615 TSA → MZG Jul 22, 04:05 UTCJul 22, 04:45 UTC40m
2026-07-22 UIA8608 MZG → TSA Jul 22, 02:30 UTCJul 22, 03:20 UTC50m
2026-07-22 UIA8607 TSA → MZG Jul 22, 00:40 UTCJul 22, 01:20 UTC40m
2026-07-21 UIA9208 - Jul 21, 13:05 UTCJul 21, 13:35 UTC30m
2026-07-21 UIA9207 TSA → KNH Jul 21, 10:55 UTCJul 21, 11:40 UTC45m
2026-07-21 UIA8790 MFK → TSA Jul 21, 09:20 UTCJul 21, 09:35 UTC15m
2026-07-21 UIA8789 TSA → MFK Jul 21, 07:40 UTCJul 21, 07:55 UTC15m
2026-07-21 UIA8760 LZN → TSA Jul 21, 06:25 UTCJul 21, 06:45 UTC20m
2026-07-21 UIA8759 TSA → LZN Jul 21, 04:45 UTCJul 21, 05:00 UTC15m
2026-07-21 UIA8756 LZN → TSA Jul 21, 03:30 UTCJul 21, 03:55 UTC25m
2026-07-21 UIA8755 TSA → LZN Jul 21, 01:45 UTCJul 21, 02:00 UTC15m
2026-07-21 UIA8752 LZN → TSA Jul 21, 00:30 UTCJul 21, 00:40 UTC10m
2026-07-20 UIA8751 TSA → LZN Jul 20, 22:45 UTCJul 20, 23:00 UTC15m
2026-07-20 UIA8728 - Jul 20, 11:40 UTCJul 20, 11:55 UTC15m
2026-07-20 UIA8727 TSA → TTT Jul 20, 09:35 UTCJul 20, 09:50 UTC15m
2026-07-20 UIA8726 TTT → TSA Jul 20, 08:05 UTCJul 20, 08:30 UTC25m
2026-07-20 UIA8725 - Jul 20, 05:55 UTCJul 20, 06:10 UTC15m
2026-07-20 UIA8722 TTT → TSA Jul 20, 04:15 UTCJul 20, 04:35 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-17006 page for operator, model, and routing details .

Mode-S 899141 frequently asked

What is Mode-S code 899141?
899141 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-17006.
Where is Mode-S 899141 registered?
Mode-S code 899141 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899141 broadcasting right now?
Yes. Mode-S 899141 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899141, octal 42310501, decimal 9,015,617.
What flights does 899141 operate?
Mode-S 899141 has broadcast 20 distinct callsigns, including UIA8955, UIA8736, UIA8735, UIA8732, UIA8655.