Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

899142

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-17007 · ATR-72-600

Hex
899142
Octal
42310502
Decimal
9,015,618
Country
TW
Tail
B-17007
Type
AT76
No current signal · last broadcast 2h ago
Flights observed
705
Distinct callsigns
20
Country
TW
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 899142.

Country allocation

The ICAO 24-bit address 899142 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
UIA8830 - 12 2026-07-06
UIA8612 - 12 2026-07-02
UIA8829 - 11 2026-07-02
UIA8621 - 10 2026-07-05
UIA8605 - 10 2026-07-02
UIA9166 - 9 2026-06-30
UIA9165 Uni Air 9 2026-06-30
UIA8985 - 9 2026-07-14
UIA8982 - 9 2026-07-14
UIA8981 - 9 2026-07-14
UIA8918 - 9 2026-06-21
UIA8755 - 9 2026-06-16
UIA8676 - 9 2026-07-14
UIA8655 - 9 2026-07-03
UIA8991 - 8 2026-07-13
UIA8986 - 8 2026-07-13
UIA8962 Uni Air 8 2026-06-10
UIA8961 Uni Air 8 2026-06-10
UIA8956 - 8 2026-07-03
UIA8927 - 8 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UIA8985 - Jul 14, 05:20 UTCJul 14, 05:35 UTC15m
2026-07-14 UIA8982 - Jul 14, 04:05 UTCJul 14, 04:25 UTC20m
2026-07-14 UIA8981 - Jul 14, 01:45 UTCJul 14, 02:05 UTC20m
2026-07-14 UIA8676 - Jul 14, 00:35 UTCJul 14, 00:55 UTC20m
2026-07-13 UIA8675 - Jul 13, 23:25 UTCJul 13, 23:50 UTC25m
2026-07-13 UIA8992 - Jul 13, 10:35 UTCJul 13, 10:50 UTC15m
2026-07-13 UIA8991 - Jul 13, 08:40 UTCJul 13, 09:05 UTC25m
2026-07-13 UIA8986 - Jul 13, 07:35 UTCJul 13, 07:55 UTC20m
2026-07-13 UIA8985 - Jul 13, 05:45 UTCJul 13, 06:05 UTC20m
2026-07-13 UIA8982 - Jul 13, 04:05 UTCJul 13, 04:20 UTC15m
2026-07-13 UIA8981 - Jul 13, 01:50 UTCJul 13, 02:05 UTC15m
2026-07-13 UIA8676 MZG → TNN Jul 13, 00:40 UTCJul 13, 01:01 UTC20m
2026-07-12 UIA8675 - Jul 12, 23:35 UTCJul 12, 23:55 UTC20m
2026-07-12 UIA8992 - Jul 12, 10:10 UTCJul 12, 10:25 UTC15m
2026-07-12 UIA8991 - Jul 12, 08:05 UTCJul 12, 08:35 UTC30m
2026-07-12 UIA8986 - Jul 12, 07:05 UTCJul 12, 07:20 UTC15m
2026-07-12 UIA8985 - Jul 12, 05:10 UTCJul 12, 05:30 UTC20m
2026-07-12 UIA8982 MZG → TNN Jul 12, 04:01 UTCJul 12, 04:15 UTC15m
2026-07-12 UIA8981 - Jul 12, 01:50 UTCJul 12, 02:20 UTC30m
2026-07-12 UIA8676 - Jul 12, 00:40 UTCJul 12, 00:55 UTC15m
2026-07-11 UIA8675 - Jul 11, 23:30 UTCJul 11, 23:55 UTC25m
2026-07-10 UIA8986 - Jul 10, 06:55 UTCJul 10, 07:15 UTC20m
2026-07-10 UIA8985 - Jul 10, 05:10 UTCJul 10, 05:30 UTC20m
2026-07-10 UIA8982 - Jul 10, 04:10 UTCJul 10, 04:30 UTC20m
2026-07-10 UIA8981 - Jul 10, 01:55 UTCJul 10, 02:15 UTC20m
2026-07-10 UIA8676 - Jul 10, 00:50 UTCJul 10, 01:15 UTC25m
2026-07-09 UIA8675 - Jul 9, 23:25 UTCJul 9, 23:45 UTC20m
2026-07-09 UIA8992 - Jul 9, 10:10 UTCJul 9, 10:20 UTC10m
2026-07-09 UIA8991 - Jul 9, 08:10 UTCJul 9, 08:35 UTC25m
2026-07-09 UIA8986 - Jul 9, 07:10 UTCJul 9, 07:30 UTC20m
2026-07-09 UIA8985 - Jul 9, 05:15 UTCJul 9, 05:40 UTC25m
2026-07-09 UIA8982 - Jul 9, 04:05 UTCJul 9, 04:25 UTC20m
2026-07-09 UIA8981 - Jul 9, 02:05 UTCJul 9, 02:25 UTC20m
2026-07-09 UIA8676 - Jul 9, 00:45 UTCJul 9, 01:10 UTC25m
2026-07-08 UIA8675 - Jul 8, 23:25 UTCJul 8, 23:45 UTC20m
2026-07-08 UIA8992 MZG → TNN Jul 8, 10:05 UTCJul 8, 10:25 UTC20m
2026-07-08 UIA8991 - Jul 8, 08:15 UTCJul 8, 08:30 UTC15m
2026-07-08 UIA8986 - Jul 8, 07:10 UTCJul 8, 07:30 UTC20m
2026-07-08 UIA8985 - Jul 8, 05:15 UTCJul 8, 05:35 UTC20m
2026-07-08 UIA8982 - Jul 8, 04:00 UTCJul 8, 04:30 UTC30m
2026-07-08 UIA8981 - Jul 8, 01:50 UTCJul 8, 02:05 UTC15m
2026-07-08 UIA8676 - Jul 8, 00:50 UTCJul 8, 01:00 UTC10m
2026-07-07 UIA8675 TNN → MZG Jul 7, 23:30 UTCJul 7, 23:50 UTC20m
2026-07-07 UIA8992 - Jul 7, 10:05 UTCJul 7, 10:25 UTC20m
2026-07-07 UIA8991 - Jul 7, 08:15 UTCJul 7, 08:35 UTC20m
2026-07-07 UIA8986 - Jul 7, 07:05 UTCJul 7, 07:20 UTC15m
2026-07-07 UIA8985 - Jul 7, 05:10 UTCJul 7, 05:30 UTC20m
2026-07-07 UIA8982 - Jul 7, 04:05 UTCJul 7, 04:15 UTC10m
2026-07-07 UIA8809 - Jul 7, 01:40 UTCJul 7, 02:25 UTC45m
2026-07-06 UIA8830 - Jul 6, 12:25 UTCJul 6, 13:05 UTC40m

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-17007 page for operator, model, and routing details .

Mode-S 899142 frequently asked

What is Mode-S code 899142?
899142 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-17007.
Where is Mode-S 899142 registered?
Mode-S code 899142 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899142 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899142, octal 42310502, decimal 9,015,618.
What flights does 899142 operate?
Mode-S 899142 has broadcast 20 distinct callsigns, including UIA8830, UIA8612, UIA8829, UIA8621, UIA8605.