Apparatus

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sensors Mode-S transponder

899019

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-18053 · BOEING 777-300ER

Hex
899019
Octal
42310031
Decimal
9,015,321
Country
TW
Tail
B-18053
Type
B77W
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
248
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 899019.

Country allocation

The ICAO 24-bit address 899019 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
CAL031 China Airlines 30 2026-07-26
CAL032 China Airlines 28 2026-07-25
CAL012 - 24 2026-07-09
CAL011 - 24 2026-07-11
CAL008 - 13 2026-07-14
CAL007 - 12 2026-07-15
CAL003 - 12 2026-07-18
CAL004 - 11 2026-07-17
CAL722 China Airlines 9 2026-07-23
CAL784 - 7 2026-07-14
CAL721 China Airlines 7 2026-07-23
CAL023 - 7 2026-07-20
CAL781 China Airlines 6 2026-07-18
CAL157 China Airlines 6 2026-07-25
CAL024 China Airlines 6 2026-07-19
CAL156 China Airlines 5 2026-07-25
CAL101 - 5 2026-07-12
CAL783 China Airlines 3 2026-06-05
CAL772 - 3 2026-06-27
CAL504 - 3 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CAL031 YVR → TPE Jul 26, 09:05 UTCJul 26, 21:10 UTC12h 5m
2026-07-25 CAL032 TPE → YVR Jul 25, 16:20 UTCJul 26, 02:45 UTC10h 25m
2026-07-25 CAL157 KIX → TPE Jul 25, 06:45 UTCJul 25, 07:00 UTC15m
2026-07-25 CAL157 KIX → TPE Jul 25, 04:45 UTCJul 25, 05:25 UTC40m
2026-07-25 CAL156 TPE → KIX Jul 25, 01:05 UTCJul 25, 03:10 UTC2h 5m
2026-07-24 CAL031 YVR → TPE Jul 24, 20:10 UTCJul 24, 20:30 UTC20m
2026-07-24 CAL031 YVR → TPE Jul 24, 09:05 UTCJul 24, 18:50 UTC9h 45m
2026-07-23 CAL032 TPE → YVR Jul 23, 17:10 UTCJul 24, 02:50 UTC9h 40m
2026-07-23 CAL032 TPE → YVR Jul 23, 16:30 UTCJul 23, 16:40 UTC10m
2026-07-23 CAL722 KUL → TPE Jul 23, 07:10 UTCJul 23, 11:30 UTC4h 20m
2026-07-23 CAL721 TPE → KUL Jul 23, 01:10 UTCJul 23, 05:10 UTC4h 0m
2026-07-22 CAL031 YVR → TPE Jul 22, 20:25 UTCJul 22, 20:40 UTC15m
2026-07-22 CAL031 YVR → TPE Jul 22, 17:35 UTCJul 22, 19:55 UTC2h 20m
2026-07-21 CAL032 - Jul 21, 18:10 UTCJul 22, 02:40 UTC8h 30m
2026-07-21 CAL032 - Jul 21, 16:20 UTCJul 21, 16:35 UTC15m
2026-07-20 CAL023 - Jul 20, 20:25 UTCJul 20, 20:50 UTC25m
2026-07-20 CAL023 - Jul 20, 08:05 UTCJul 20, 19:15 UTC11h 10m
2026-07-19 CAL024 TPE → ONT Jul 19, 15:05 UTCJul 20, 01:55 UTC10h 50m
2026-07-19 CAL024 TPE → ONT Jul 19, 13:35 UTCJul 19, 13:55 UTC20m
2026-07-18 CAL781 TPE → SGN Jul 18, 23:40 UTCJul 19, 07:05 UTC7h 25m
2026-07-18 CAL003 - Jul 18, 20:00 UTCJul 18, 20:15 UTC15m
2026-07-18 CAL003 - Jul 18, 08:30 UTCJul 18, 18:50 UTC10h 20m
2026-07-17 CAL004 - Jul 17, 17:20 UTCJul 18, 04:20 UTC11h 1m
2026-07-17 CAL004 - Jul 17, 16:34 UTCJul 17, 16:49 UTC15m
2026-07-16 CAL771 - Jul 16, 01:40 UTCJul 16, 13:05 UTC11h 25m
2026-07-15 CAL007 - Jul 15, 20:30 UTCJul 15, 20:50 UTC20m
2026-07-15 CAL007 - Jul 15, 08:15 UTCJul 15, 19:20 UTC11h 5m
2026-07-14 CAL008 - Jul 14, 16:40 UTCJul 15, 04:55 UTC12h 14m
2026-07-14 CAL784 - Jul 14, 06:00 UTCJul 14, 14:10 UTC8h 10m
2026-07-13 CAL031 - Jul 13, 20:15 UTCJul 13, 20:45 UTC30m
2026-07-13 CAL031 - Jul 13, 09:15 UTCJul 13, 19:10 UTC9h 55m
2026-07-12 CAL032 - Jul 12, 16:01 UTCJul 13, 02:40 UTC10h 40m
2026-07-12 CAL101 - Jul 12, 09:10 UTCJul 12, 09:35 UTC25m
2026-07-12 CAL101 - Jul 12, 06:55 UTCJul 12, 08:05 UTC1h 10m
2026-07-12 CAL100 TPE → NRT Jul 12, 01:45 UTCJul 12, 04:50 UTC3h 5m
2026-07-11 CAL011 - Jul 11, 20:40 UTCJul 11, 20:55 UTC15m
2026-07-11 CAL011 - Jul 11, 05:35 UTCJul 11, 20:05 UTC14h 30m
2026-07-09 CAL012 - Jul 9, 10:00 UTCJul 10, 01:05 UTC15h 5m
2026-07-08 CAL781 - Jul 8, 23:45 UTCJul 9, 07:20 UTC7h 35m
2026-07-08 CAL771 TPE → TPE Jul 8, 01:45 UTCJul 8, 13:10 UTC11h 25m
2026-07-07 CAL031 YVR → TPE Jul 7, 20:20 UTCJul 7, 20:45 UTC25m
2026-07-07 CAL031 YVR → TPE Jul 7, 09:15 UTCJul 7, 19:10 UTC9h 55m
2026-07-06 CAL032 TPE → YVR Jul 6, 16:05 UTCJul 7, 02:25 UTC10h 20m
2026-07-05 CAL003 - Jul 5, 08:20 UTCJul 5, 20:40 UTC12h 20m
2026-07-04 CAL004 - Jul 4, 18:10 UTCJul 5, 03:35 UTC9h 25m
2026-07-04 CAL004 - Jul 4, 16:25 UTCJul 4, 16:35 UTC10m
2026-07-04 CAL722 - Jul 4, 07:25 UTCJul 4, 11:50 UTC4h 25m
2026-07-04 CAL721 - Jul 4, 01:30 UTCJul 4, 05:35 UTC4h 5m
2026-07-03 CAL011 - Jul 3, 21:50 UTCJul 3, 22:10 UTC20m
2026-07-03 CAL011 - Jul 3, 05:50 UTCJul 3, 20:35 UTC14h 45m

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-18053 page for operator, model, and routing details .

Mode-S 899019 frequently asked

What is Mode-S code 899019?
899019 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-18053.
Where is Mode-S 899019 registered?
Mode-S code 899019 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899019 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899019, octal 42310031, decimal 9,015,321.
What flights does 899019 operate?
Mode-S 899019 has broadcast 20 distinct callsigns, including CAL031, CAL032, CAL012, CAL011, CAL008.