Apparatus

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sensors Mode-S transponder

899043

ICAO 24-bit transponder address · allocated to Taiwan

Hex
899043
Octal
42310103
Decimal
9,015,363
Country
TW
No current signal · last broadcast 36m ago
Flights observed
83
Distinct callsigns
4
Country
TW
Last broadcast
36m ago

Last known position

Most recent position reported by Mode-S 899043.

Country allocation

The ICAO 24-bit address 899043 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 4 distinct

Callsign Airline Flights Last seen
CAL832 - 21 2026-06-25
CAL058 - 21 2026-06-26
CAL057 China Airlines 21 2026-06-25
CAL831 - 20 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-26 CAL058 - Jun 26, 12:24 UTCJun 26, 20:44 UTC8h 20m
2026-06-25 CAL057 TPE → MEL Jun 25, 16:59 UTCJun 26, 02:20 UTC9h 20m
2026-06-25 CAL832 - Jun 25, 06:55 UTCJun 25, 10:20 UTC3h 25m
2026-06-25 CAL831 - Jun 25, 02:14 UTCJun 25, 05:15 UTC3h 0m
2026-06-24 CAL058 MEL → TPE Jun 24, 12:09 UTCJun 24, 21:14 UTC9h 5m
2026-06-23 CAL057 TPE → MEL Jun 23, 15:50 UTCJun 24, 00:15 UTC8h 25m
2026-06-22 CAL832 - Jun 22, 07:04 UTCJun 22, 10:19 UTC3h 15m
2026-06-22 CAL831 - Jun 22, 02:25 UTCJun 22, 05:24 UTC3h 0m
2026-06-21 CAL058 MEL → TPE Jun 21, 12:10 UTCJun 21, 20:59 UTC8h 50m
2026-06-20 CAL057 TPE → MEL Jun 20, 15:44 UTCJun 21, 00:10 UTC8h 25m
2026-06-20 CAL832 - Jun 20, 06:45 UTCJun 20, 10:04 UTC3h 20m
2026-06-20 CAL831 - Jun 20, 02:04 UTCJun 20, 04:44 UTC2h 40m
2026-06-19 CAL058 - Jun 19, 11:59 UTCJun 19, 20:55 UTC8h 55m
2026-06-18 CAL057 TPE → MEL Jun 18, 16:15 UTCJun 19, 00:45 UTC8h 29m
2026-06-18 CAL832 - Jun 18, 06:40 UTCJun 18, 10:20 UTC3h 40m
2026-06-18 CAL831 TPE → BKK Jun 18, 01:45 UTCJun 18, 04:45 UTC3h 0m
2026-06-17 CAL058 MEL → TPE Jun 17, 12:05 UTCJun 17, 21:25 UTC9h 20m
2026-06-16 CAL057 TPE → MEL Jun 16, 16:15 UTCJun 17, 00:25 UTC8h 11m
2026-06-16 CAL832 - Jun 16, 06:50 UTCJun 16, 10:20 UTC3h 30m
2026-06-16 CAL831 - Jun 16, 02:15 UTCJun 16, 05:15 UTC3h 0m
2026-06-15 CAL832 - Jun 15, 06:40 UTCJun 15, 10:05 UTC3h 25m
2026-06-15 CAL831 - Jun 15, 01:45 UTCJun 15, 04:45 UTC3h 0m
2026-06-14 CAL058 MEL → TPE Jun 14, 12:15 UTCJun 14, 21:15 UTC9h 0m
2026-06-13 CAL057 TPE → MEL Jun 13, 16:25 UTCJun 14, 00:55 UTC8h 30m
2026-06-13 CAL832 BKK → TPE Jun 13, 06:40 UTCJun 13, 10:00 UTC3h 20m
2026-06-13 CAL831 - Jun 13, 01:55 UTCJun 13, 05:00 UTC3h 5m
2026-06-12 CAL058 MEL → TPE Jun 12, 12:20 UTCJun 12, 21:05 UTC8h 45m
2026-06-11 CAL057 TPE → MEL Jun 11, 16:05 UTCJun 12, 00:50 UTC8h 46m
2026-06-11 CAL832 BKK → TPE Jun 11, 06:55 UTCJun 11, 10:10 UTC3h 15m
2026-06-11 CAL831 TPE → BKK Jun 11, 02:05 UTCJun 11, 05:10 UTC3h 5m
2026-06-10 CAL058 MEL → TPE Jun 10, 12:00 UTCJun 10, 20:45 UTC8h 45m
2026-06-09 CAL057 TPE → MEL Jun 9, 16:45 UTCJun 10, 01:15 UTC8h 30m
2026-06-08 CAL832 BKK → TPE Jun 8, 10:25 UTCJun 8, 11:20 UTC55m
2026-06-08 CAL832 BKK → TPE Jun 8, 08:10 UTCJun 8, 08:30 UTC20m
2026-06-08 CAL831 TPE → BKK Jun 8, 02:50 UTCJun 8, 06:10 UTC3h 20m
2026-06-07 CAL058 MEL → TPE Jun 7, 11:50 UTCJun 7, 20:40 UTC8h 50m
2026-06-06 CAL057 TPE → MEL Jun 6, 16:10 UTCJun 7, 00:30 UTC8h 20m
2026-06-06 CAL832 BKK → TPE Jun 6, 06:40 UTCJun 6, 10:00 UTC3h 20m
2026-06-06 CAL831 TPE → BKK Jun 6, 01:50 UTCJun 6, 04:55 UTC3h 5m
2026-06-05 CAL058 MEL → TPE Jun 5, 12:05 UTCJun 5, 20:50 UTC8h 45m
2026-06-04 CAL057 TPE → MEL Jun 4, 16:10 UTCJun 5, 00:55 UTC8h 45m
2026-06-04 CAL832 BKK → TPE Jun 4, 07:40 UTCJun 4, 10:55 UTC3h 15m
2026-06-04 CAL831 TPE → BKK Jun 4, 02:30 UTCJun 4, 05:35 UTC3h 5m
2026-06-03 CAL058 MEL → TPE Jun 3, 12:00 UTCJun 3, 20:50 UTC8h 50m
2026-06-02 CAL057 TPE → MEL Jun 2, 15:50 UTCJun 3, 00:20 UTC8h 30m
2026-06-01 CAL832 BKK → TPE Jun 1, 06:40 UTCJun 1, 10:00 UTC3h 20m
2026-06-01 CAL831 TPE → BKK Jun 1, 01:45 UTCJun 1, 04:55 UTC3h 10m
2026-05-31 CAL058 MEL → TPE May 31, 12:05 UTCMay 31, 20:40 UTC8h 35m
2026-05-30 CAL057 TPE → MEL May 30, 16:20 UTCMay 31, 00:55 UTC8h 35m
2026-05-30 CAL832 BKK → TPE May 30, 06:55 UTCMay 30, 10:10 UTC3h 15m

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.

Mode-S 899043 frequently asked

What is Mode-S code 899043?
899043 is an ICAO 24-bit transponder address. Allocated to Taiwan.
Where is Mode-S 899043 registered?
Mode-S code 899043 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899043 broadcasting right now?
No active broadcast right now. Last signal was 36m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899043, octal 42310103, decimal 9,015,363.
What flights does 899043 operate?
Mode-S 899043 has broadcast 4 distinct callsigns, including CAL832, CAL058, CAL057, CAL831.