sensors Mode-S transponder

89901F

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-18006 · BOEING 777-300ER

Hex
89901F
Octal
42310037
Decimal
9,015,327
Country
TW
Tail
B-18006
Type
B77W
Broadcasting now · 30,000 ft
Flights observed
116
Distinct callsigns
20
Country
TW
Last broadcast
3h ago

Current position

89901F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 89901F 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 23 2026-05-27
CAL032 China Airlines 17 2026-05-26
CAL772 China Airlines 11 2026-05-22
CAL024 China Airlines 6 2026-05-28
CAL722 China Airlines 5 2026-05-28
CAL023 China Airlines 5 2026-05-29
CAL771 China Airlines 4 2026-04-17
CAL721 China Airlines 4 2026-05-28
CAL782 China Airlines 3 2026-05-24
CAL157 China Airlines 3 2026-05-14
CAL156 China Airlines 3 2026-05-14
CAL101 China Airlines 3 2026-05-03
CAL100 China Airlines 3 2026-05-03
CAL012 China Airlines 3 2026-05-16
CAL003 - 3 2026-04-30
CAL784 China Airlines 2 2026-05-26
CAL1806 - 2 2026-05-12
CAL062 China Airlines 2 2026-05-19
CAL061 China Airlines 2 2026-05-18
CAL011 China Airlines 2 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CAL501 TPE → PVG May 30, 01:25 UTCMay 30, 01:40 UTC15m
2026-05-29 CAL023 ONT → TPE May 29, 07:15 UTCMay 29, 20:50 UTC13h 35m
2026-05-28 CAL024 TPE → ONT May 28, 15:40 UTCMay 29, 01:45 UTC10h 5m
2026-05-28 CAL024 TPE → ONT May 28, 14:10 UTCMay 28, 14:25 UTC15m
2026-05-28 CAL722 KUL → TPE May 28, 07:40 UTCMay 28, 11:55 UTC4h 15m
2026-05-28 CAL721 TPE → KUL May 28, 01:40 UTCMay 28, 05:45 UTC4h 5m
2026-05-27 CAL031 YVR → TPE May 27, 09:00 UTCMay 27, 21:05 UTC12h 5m
2026-05-26 CAL032 TPE → YVR May 26, 16:15 UTCMay 27, 02:39 UTC10h 25m
2026-05-26 CAL784 SGN → TPE May 26, 05:59 UTCMay 26, 13:54 UTC7h 55m
2026-05-24 CAL782 SGN → TPE May 24, 23:30 UTCMay 25, 07:15 UTC7h 45m
2026-05-23 CAL007 - May 23, 20:40 UTCMay 23, 21:05 UTC25m
2026-05-23 CAL007 - May 23, 07:40 UTCMay 23, 19:20 UTC11h 40m
2026-05-22 CAL008 - May 22, 18:20 UTCMay 23, 03:35 UTC9h 14m
2026-05-22 CAL008 - May 22, 16:20 UTCMay 22, 16:35 UTC15m
2026-05-22 CAL772 DPS → TPE May 22, 01:30 UTCMay 22, 12:55 UTC11h 25m
2026-05-21 CAL031 YVR → TPE May 21, 20:40 UTCMay 21, 21:05 UTC25m
2026-05-21 CAL031 YVR → TPE May 21, 09:05 UTCMay 21, 19:25 UTC10h 20m
2026-05-20 CAL032 TPE → YVR May 20, 17:40 UTCMay 21, 02:00 UTC8h 20m
2026-05-20 CAL032 TPE → YVR May 20, 15:55 UTCMay 20, 16:10 UTC15m
2026-05-20 CAL153 KIX → TPE May 20, 05:35 UTCMay 20, 07:55 UTC2h 20m
2026-05-20 CAL152 TPE → KIX May 20, 01:15 UTCMay 20, 03:25 UTC2h 10m
2026-05-19 CAL062 FRA → TPE May 19, 09:50 UTCMay 19, 22:05 UTC12h 15m
2026-05-18 CAL061 TPE → FRA May 18, 14:40 UTCMay 19, 04:10 UTC13h 29m
2026-05-17 CAL782 SGN → TPE May 17, 23:30 UTCMay 18, 07:05 UTC7h 35m
2026-05-17 CAL011 JFK → TPE May 17, 05:30 UTCMay 17, 20:55 UTC15h 25m
2026-05-16 CAL012 TPE → JFK May 16, 10:05 UTCMay 17, 00:40 UTC14h 35m
2026-05-15 CAL782 SGN → TPE May 15, 23:35 UTCMay 16, 07:05 UTC7h 31m
2026-05-14 CAL157 KIX → TPE May 14, 07:05 UTCMay 14, 07:40 UTC35m
2026-05-14 CAL157 KIX → TPE May 14, 04:55 UTCMay 14, 06:30 UTC1h 35m
2026-05-14 CAL156 TPE → KIX May 14, 02:20 UTCMay 14, 02:55 UTC35m
2026-05-14 CAL156 TPE → KIX May 14, 00:55 UTCMay 14, 01:10 UTC15m
2026-05-13 CAL031 YVR → TPE May 13, 20:30 UTCMay 13, 21:00 UTC30m
2026-05-13 CAL031 YVR → TPE May 13, 09:05 UTCMay 13, 19:10 UTC10h 5m
2026-05-12 CAL032 TPE → YVR May 12, 16:00 UTCMay 13, 02:00 UTC10h 0m
2026-05-12 CAL1806 - May 12, 09:50 UTCMay 12, 11:20 UTC1h 30m
2026-05-12 CAL1806 - May 12, 06:30 UTCMay 12, 09:20 UTC2h 50m
2026-05-11 CAL722 KUL → TPE May 11, 07:00 UTCMay 11, 11:05 UTC4h 5m
2026-05-11 CAL721 TPE → KUL May 11, 01:05 UTCMay 11, 05:10 UTC4h 5m
2026-05-10 CAL722 KUL → TPE May 10, 07:25 UTCMay 10, 11:40 UTC4h 15m
2026-05-10 CAL721 TPE → KUL May 10, 01:09 UTCMay 10, 05:10 UTC4h 0m
2026-05-09 CAL772 DPS → TPE May 9, 01:35 UTCMay 9, 12:55 UTC11h 20m
2026-05-08 CAL023 ONT → TPE May 8, 21:05 UTCMay 8, 21:35 UTC30m
2026-05-08 CAL023 ONT → TPE May 8, 07:29 UTCMay 8, 20:25 UTC12h 55m
2026-05-07 CAL024 TPE → ONT May 7, 15:25 UTCMay 8, 01:04 UTC9h 40m
2026-05-07 CAL024 TPE → ONT May 7, 13:35 UTCMay 7, 13:45 UTC10m
2026-05-06 CAL031 YVR → TPE May 6, 20:40 UTCMay 6, 21:05 UTC25m
2026-05-06 CAL031 YVR → TPE May 6, 09:15 UTCMay 6, 19:20 UTC10h 4m
2026-05-05 CAL032 TPE → YVR May 5, 17:40 UTCMay 6, 02:15 UTC8h 35m
2026-05-05 CAL032 TPE → YVR May 5, 16:15 UTCMay 5, 16:25 UTC10m
2026-05-05 CAL783 TPE → SGN May 5, 06:05 UTCMay 5, 14:00 UTC7h 55m

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-18006 page for operator, model, and routing details .

Mode-S 89901F frequently asked

What is Mode-S code 89901F?
89901F is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-18006.
Where is Mode-S 89901F registered?
Mode-S code 89901F is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 89901F broadcasting right now?
Yes. Mode-S 89901F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 89901F, octal 42310037, decimal 9,015,327.
What flights does 89901F operate?
Mode-S 89901F has broadcast 20 distinct callsigns, including CAL031, CAL032, CAL772, CAL024, CAL722.