Apparatus

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sensors Mode-S transponder

899109

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-18102 · AIRBUS A-321neo

Hex
899109
Octal
42310411
Decimal
9,015,561
Country
TW
Tail
B-18102
Type
A21N
Broadcasting now · callsign CAL189 · 25,075 ft
Flights observed
374
Distinct callsigns
20
Country
TW
Last broadcast
Jul 25, 12:05 UTC

Current position

899109 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 899109 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
CAL107 - 14 2026-07-15
CAL179 - 12 2026-07-15
CAL106 - 12 2026-07-14
CAL909 China Airlines 11 2026-07-22
CAL601 China Airlines 11 2026-07-22
CAL528 - 11 2026-06-29
CAL151 China Airlines 11 2026-07-18
CAL527 - 10 2026-06-29
CAL731 - 9 2026-07-10
CAL187 China Airlines 9 2026-07-24
CAL155 China Airlines 9 2026-07-24
CAL109 China Airlines 9 2026-07-23
CAL756 China Airlines 8 2026-06-23
CAL755 - 8 2026-06-23
CAL602 China Airlines 8 2026-07-23
CAL178 - 8 2026-07-15
CAL910 - 7 2026-07-17
CAL189 China Airlines 7 2026-07-25
CAL186 China Airlines 7 2026-07-24
CAL150 - 6 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CAL129 FUK → TPE Jul 25, 11:50 UTCJul 25, 12:05 UTC15m
2026-07-25 CAL129 FUK → TPE Jul 25, 10:20 UTCJul 25, 10:40 UTC20m
2026-07-25 CAL128 TPE → FUK Jul 25, 08:20 UTCJul 25, 08:50 UTC30m
2026-07-25 CAL128 TPE → FUK Jul 25, 06:55 UTCJul 25, 07:15 UTC20m
2026-07-25 CAL189 PUS → TPE Jul 25, 05:05 UTCJul 25, 05:25 UTC20m
2026-07-25 CAL189 PUS → TPE Jul 25, 03:35 UTCJul 25, 03:55 UTC20m
2026-07-25 CAL188 TPE → PUS Jul 25, 00:25 UTCJul 25, 02:15 UTC1h 50m
2026-07-24 CAL187 PUS → TPE Jul 24, 16:15 UTCJul 24, 16:50 UTC35m
2026-07-24 CAL187 PUS → TPE Jul 24, 13:25 UTCJul 24, 14:55 UTC1h 30m
2026-07-24 CAL187 PUS → TPE Jul 24, 11:25 UTCJul 24, 11:50 UTC25m
2026-07-24 CAL186 TPE → PUS Jul 24, 09:30 UTCJul 24, 09:50 UTC20m
2026-07-24 CAL186 TPE → PUS Jul 24, 08:05 UTCJul 24, 08:30 UTC25m
2026-07-24 CAL155 NGO → TPE Jul 24, 06:00 UTCJul 24, 06:15 UTC15m
2026-07-24 CAL155 NGO → TPE Jul 24, 03:50 UTCJul 24, 04:30 UTC40m
2026-07-23 CAL154 TPE → NGO Jul 23, 23:55 UTCJul 24, 02:05 UTC2h 10m
2026-07-23 CAL109 NRT → TPE Jul 23, 14:30 UTCJul 23, 14:55 UTC25m
2026-07-23 CAL109 NRT → TPE Jul 23, 11:45 UTCJul 23, 13:55 UTC2h 10m
2026-07-23 CAL108 TPE → NRT Jul 23, 06:45 UTCJul 23, 09:45 UTC3h 0m
2026-07-23 CAL602 HKG → TPE Jul 23, 02:25 UTCJul 23, 03:45 UTC1h 20m
2026-07-22 CAL601 TPE → HKG Jul 22, 23:35 UTCJul 23, 00:50 UTC1h 15m
2026-07-22 CAL909 TPE → HKG Jul 22, 03:40 UTCJul 22, 05:10 UTC1h 30m
2026-07-21 CAL7898 KHH → TPE Jul 21, 23:35 UTCJul 22, 00:15 UTC40m
2026-07-21 CAL936 HKG → KHH Jul 21, 12:50 UTCJul 21, 13:55 UTC1h 5m
2026-07-21 CAL935 KHH → HKG Jul 21, 10:15 UTCJul 21, 11:20 UTC1h 5m
2026-07-21 CAL103 NRT → KHH Jul 21, 05:00 UTCJul 21, 08:20 UTC3h 20m
2026-07-21 CAL102 KHH → NRT Jul 21, 00:00 UTCJul 21, 03:15 UTC3h 15m
2026-07-20 CAL177 KIX → KHH Jul 20, 11:55 UTCJul 20, 14:30 UTC2h 35m
2026-07-20 CAL176 KHH → KIX Jul 20, 07:45 UTCJul 20, 10:25 UTC2h 40m
2026-07-20 CAL165 ICN → KHH Jul 20, 03:45 UTCJul 20, 06:20 UTC2h 35m
2026-07-19 CAL164 KHH → ICN Jul 19, 23:10 UTCJul 20, 01:35 UTC2h 25m
2026-07-19 CAL177 KIX → KHH Jul 19, 11:45 UTCJul 19, 14:30 UTC2h 45m
2026-07-19 CAL176 KHH → KIX Jul 19, 07:40 UTCJul 19, 10:15 UTC2h 35m
2026-07-19 CAL7841 TPE → KHH Jul 19, 05:35 UTCJul 19, 06:25 UTC50m
2026-07-19 CAL602 HKG → TPE Jul 19, 02:55 UTCJul 19, 04:30 UTC1h 35m
2026-07-18 CAL601 TPE → HKG Jul 18, 23:35 UTCJul 19, 00:50 UTC1h 15m
2026-07-18 CAL794 - Jul 18, 11:35 UTCJul 18, 14:05 UTC2h 30m
2026-07-18 CAL793 - Jul 18, 07:10 UTCJul 18, 09:15 UTC2h 5m
2026-07-18 CAL151 NGO → TPE Jul 18, 03:25 UTCJul 18, 03:45 UTC20m
2026-07-18 CAL151 NGO → TPE Jul 18, 01:20 UTCJul 18, 02:09 UTC50m
2026-07-17 CAL150 - Jul 17, 09:30 UTCJul 17, 12:04 UTC2h 35m
2026-07-17 CAL910 HKG → TPE Jul 17, 06:35 UTCJul 17, 08:15 UTC1h 40m
2026-07-17 CAL909 TPE → HKG Jul 17, 03:25 UTCJul 17, 04:49 UTC1h 25m
2026-07-16 CAL109 - Jul 16, 14:25 UTCJul 16, 14:55 UTC30m
2026-07-16 CAL109 - Jul 16, 11:54 UTCJul 16, 13:10 UTC1h 15m
2026-07-16 CAL108 - Jul 16, 08:50 UTCJul 16, 10:15 UTC1h 25m
2026-07-16 CAL108 - Jul 16, 07:10 UTCJul 16, 07:25 UTC15m
2026-07-16 CAL602 HKG → TPE Jul 16, 03:20 UTCJul 16, 04:50 UTC1h 30m
2026-07-15 CAL601 - Jul 15, 23:40 UTCJul 16, 00:55 UTC1h 15m
2026-07-15 CAL179 - Jul 15, 12:15 UTCJul 15, 12:35 UTC20m
2026-07-15 CAL179 - Jul 15, 10:20 UTCJul 15, 10:55 UTC35m

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-18102 page for operator, model, and routing details .

Mode-S 899109 frequently asked

What is Mode-S code 899109?
899109 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-18102.
Where is Mode-S 899109 registered?
Mode-S code 899109 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899109 broadcasting right now?
Yes. Mode-S 899109 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899109, octal 42310411, decimal 9,015,561.
What flights does 899109 operate?
Mode-S 899109 has broadcast 20 distinct callsigns, including CAL107, CAL179, CAL106, CAL909, CAL601.