Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

899046

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-18663 · BOEING 737-800

Hex
899046
Octal
42310106
Decimal
9,015,366
Country
TW
Tail
B-18663
Type
B738
No current signal · last broadcast 10h ago
Flights observed
189
Distinct callsigns
20
Country
TW
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 899046.

Country allocation

The ICAO 24-bit address 899046 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
CAL585 China Airlines 16 2026-05-28
CAL132 China Airlines 15 2026-05-26
CAL839 China Airlines 13 2026-05-23
CAL199 China Airlines 13 2026-05-20
CAL133 China Airlines 13 2026-05-25
CAL840 China Airlines 12 2026-05-23
CAL586 China Airlines 12 2026-05-28
CAL915 China Airlines 10 2026-05-29
CAL198 China Airlines 10 2026-05-19
CAL139 China Airlines 9 2026-05-22
CAL583 China Airlines 8 2026-05-28
CAL581 China Airlines 8 2026-05-25
CAL138 China Airlines 8 2026-05-22
CAL916 China Airlines 6 2026-05-29
CAL167 China Airlines 4 2026-05-27
CAL861 - 3 2026-05-29
CAL593 China Airlines 3 2026-05-27
CAL582 China Airlines 3 2026-05-12
CAL2132 China Airlines 3 2026-05-22
CAL166 China Airlines 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CAL861 - May 29, 23:35 UTCMay 30, 07:15 UTC7h 40m
2026-05-29 CAL916 HKG → TPE May 29, 10:10 UTCMay 29, 11:25 UTC1h 15m
2026-05-29 CAL915 TPE → HKG May 29, 07:05 UTCMay 29, 08:25 UTC1h 20m
2026-05-29 CAL7898 KHH → TPE May 29, 04:55 UTCMay 29, 05:30 UTC35m
2026-05-29 CAL712 MNL → KHH May 29, 02:20 UTCMay 29, 03:45 UTC1h 25m
2026-05-28 CAL711 KHH → MNL May 28, 23:20 UTCMay 29, 01:00 UTC1h 40m
2026-05-28 CAL583 KHH → PVG May 28, 09:00 UTCMay 28, 14:25 UTC5h 25m
2026-05-28 CAL586 SZX → KHH May 28, 05:15 UTCMay 28, 05:45 UTC30m
2026-05-28 CAL586 SZX → KHH May 28, 04:25 UTCMay 28, 04:45 UTC20m
2026-05-28 CAL585 KHH → SZX May 28, 00:35 UTCMay 28, 01:45 UTC1h 10m
2026-05-27 CAL593 KHH → CKG May 27, 08:25 UTCMay 27, 14:45 UTC6h 20m
2026-05-27 CAL167 KIX → KHH May 27, 03:50 UTCMay 27, 06:29 UTC2h 40m
2026-05-26 CAL166 KHH → KIX May 26, 22:59 UTCMay 27, 01:39 UTC2h 40m
2026-05-26 CAL132 KHH → OKA May 26, 07:49 UTCMay 26, 12:00 UTC4h 10m
2026-05-25 CAL581 KHH → PVG May 25, 23:19 UTCMay 26, 05:45 UTC6h 25m
2026-05-25 CAL133 OKA → KHH May 25, 11:45 UTCMay 25, 12:20 UTC35m
2026-05-25 CAL132 KHH → OKA May 25, 08:05 UTCMay 25, 08:30 UTC25m
2026-05-25 MDA304 KNH → KHH May 25, 05:20 UTCMay 25, 05:45 UTC25m
2026-05-25 MDA303 KHH → KNH May 25, 03:25 UTCMay 25, 03:45 UTC20m
2026-05-24 CAL132 KHH → OKA May 24, 08:05 UTCMay 24, 12:20 UTC4h 15m
2026-05-24 CAL586 SZX → KHH May 24, 03:40 UTCMay 24, 04:50 UTC1h 10m
2026-05-24 CAL585 KHH → SZX May 24, 01:20 UTCMay 24, 01:40 UTC20m
2026-05-24 CAL585 KHH → SZX May 24, 00:30 UTCMay 24, 00:50 UTC20m
2026-05-23 CAL840 BKK → KHH May 23, 11:35 UTCMay 23, 14:45 UTC3h 10m
2026-05-23 CAL839 KHH → BKK May 23, 06:55 UTCMay 23, 09:55 UTC3h 0m
2026-05-22 CAL581 KHH → PVG May 22, 23:10 UTCMay 23, 04:55 UTC5h 44m
2026-05-22 CAL2132 KHH → OKA May 22, 09:25 UTCMay 22, 13:30 UTC4h 5m
2026-05-22 CAL139 FUK → KHH May 22, 07:20 UTCMay 22, 08:15 UTC55m
2026-05-22 CAL139 FUK → KHH May 22, 05:50 UTCMay 22, 06:00 UTC10m
2026-05-22 CAL138 KHH → FUK May 22, 01:20 UTCMay 22, 01:35 UTC15m
2026-05-21 CAL138 KHH → FUK May 21, 23:15 UTCMay 21, 23:55 UTC40m
2026-05-21 CAL583 KHH → PVG May 21, 09:00 UTCMay 21, 14:15 UTC5h 15m
2026-05-21 CAL586 SZX → KHH May 21, 06:20 UTCMay 21, 07:25 UTC1h 5m
2026-05-21 CAL585 KHH → SZX May 21, 01:25 UTCMay 21, 01:55 UTC30m
2026-05-21 CAL585 KHH → SZX May 21, 00:40 UTCMay 21, 00:55 UTC15m
2026-05-20 CAL133 OKA → KHH May 20, 11:40 UTCMay 20, 12:10 UTC30m
2026-05-20 CAL132 KHH → OKA May 20, 08:00 UTCMay 20, 08:25 UTC25m
2026-05-20 CAL199 KMJ → KHH May 20, 04:55 UTCMay 20, 05:45 UTC50m
2026-05-19 CAL198 KHH → KMJ May 19, 23:20 UTCMay 20, 00:05 UTC45m
2026-05-19 CAL840 BKK → KHH May 19, 11:35 UTCMay 19, 14:35 UTC3h 0m
2026-05-19 CAL839 KHH → BKK May 19, 06:45 UTCMay 19, 09:55 UTC3h 10m
2026-05-18 CAL581 KHH → PVG May 18, 23:25 UTCMay 19, 04:55 UTC5h 30m
2026-05-18 CAL583 KHH → PVG May 18, 08:55 UTCMay 18, 14:15 UTC5h 20m
2026-05-18 CAL199 KMJ → KHH May 18, 04:25 UTCMay 18, 05:15 UTC50m
2026-05-17 CAL198 KHH → KMJ May 17, 23:15 UTCMay 17, 23:55 UTC40m
2026-05-17 CAL133 OKA → KHH May 17, 11:45 UTCMay 17, 12:15 UTC30m
2026-05-17 CAL132 KHH → OKA May 17, 08:00 UTCMay 17, 08:20 UTC20m
2026-05-17 CAL586 SZX → KHH May 17, 04:15 UTCMay 17, 05:35 UTC1h 20m
2026-05-17 CAL585 KHH → SZX May 17, 00:40 UTCMay 17, 01:55 UTC1h 15m
2026-05-16 CAL133 OKA → KHH May 16, 11:55 UTCMay 16, 12:25 UTC30m

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-18663 page for operator, model, and routing details .

Mode-S 899046 frequently asked

What is Mode-S code 899046?
899046 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-18663.
Where is Mode-S 899046 registered?
Mode-S code 899046 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899046 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899046, octal 42310106, decimal 9,015,366.
What flights does 899046 operate?
Mode-S 899046 has broadcast 20 distinct callsigns, including CAL585, CAL132, CAL839, CAL199, CAL133.