Apparatus

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sensors Mode-S transponder

899123

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16782 · BOEING 777-200LR

Hex
899123
Octal
42310443
Decimal
9,015,587
Country
TW
Tail
B-16782
Type
B77L
No current signal · last broadcast 5h ago
Flights observed
183
Distinct callsigns
20
Country
TW
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 899123.

Country allocation

The ICAO 24-bit address 899123 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
EVA654 EVA Air 15 2026-04-16
EVA653 EVA Air 12 2026-04-17
EVA634 EVA Air 10 2026-04-29
EVA668 EVA Air 8 2026-05-28
EVA659 EVA Air 7 2026-05-21
EVA693 EVA Air 6 2026-04-13
EVA662 EVA Air 6 2026-05-18
EVA658 EVA Air 6 2026-05-20
EVA630 EVA Air 6 2026-05-29
EVA629 EVA Air 6 2026-05-24
EVA667 EVA Air 5 2026-05-29
EVA633 EVA Air 5 2026-04-30
EVA6061 EVA Air 5 2026-05-24
EVA681 EVA Air 4 2026-05-19
EVA663 EVA Air 4 2026-05-19
EVA642 EVA Air 4 2026-05-15
EVA6062 EVA Air 4 2026-05-25
EVA682 EVA Air 3 2026-05-19
EVA6529 EVA Air 3 2026-05-27
EVA651 EVA Air 3 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EVA630 TPE → LAX May 29, 23:10 UTCMay 29, 23:55 UTC45m
2026-05-29 EVA630 TPE → LAX May 29, 21:25 UTCMay 29, 21:40 UTC15m
2026-05-29 EVA667 ATL → ANC May 29, 16:10 UTCMay 29, 18:30 UTC2h 20m
2026-05-29 EVA667 ATL → ANC May 29, 00:00 UTCMay 29, 14:10 UTC14h 10m
2026-05-28 EVA668 TPE → ANC May 28, 14:55 UTCMay 28, 21:25 UTC6h 30m
2026-05-28 EVA668 TPE → ANC May 28, 06:05 UTCMay 28, 12:40 UTC6h 35m
2026-05-28 EVA668 TPE → ANC May 28, 04:20 UTCMay 28, 04:35 UTC15m
2026-05-27 EVA672 TPE → PVG May 27, 19:55 UTCMay 28, 01:30 UTC5h 35m
2026-05-27 EVA6530 HKG → TPE May 27, 16:20 UTCMay 27, 17:40 UTC1h 20m
2026-05-27 EVA6529 TPE → HKG May 27, 12:40 UTCMay 27, 12:55 UTC15m
2026-05-27 EVA6529 TPE → HKG May 27, 11:40 UTCMay 27, 12:05 UTC25m
2026-05-27 EVA645 ORD → TPE May 27, 08:10 UTCMay 27, 08:45 UTC35m
2026-05-26 EVA645 ORD → TPE May 26, 17:39 UTCMay 27, 06:49 UTC13h 10m
2026-05-26 EVA646 ANC → ORD May 26, 09:55 UTCMay 26, 15:39 UTC5h 45m
2026-05-26 EVA646 ANC → ORD May 26, 01:05 UTCMay 26, 08:24 UTC7h 20m
2026-05-25 EVA646 ANC → ORD May 25, 23:30 UTCMay 25, 23:45 UTC15m
2026-05-25 EVA6004 BKK → TPE May 25, 18:50 UTCMay 25, 22:05 UTC3h 14m
2026-05-25 EVA6003 - May 25, 12:15 UTCMay 25, 15:25 UTC3h 10m
2026-05-25 EVA6062 HAN → TPE May 25, 02:20 UTCMay 25, 09:55 UTC7h 35m
2026-05-24 EVA6061 TPE → SIN May 24, 20:10 UTCMay 24, 23:46 UTC3h 36m
2026-05-24 EVA6032 PEN → TPE May 24, 05:05 UTCMay 24, 16:10 UTC11h 5m
2026-05-24 EVA629 LAX → TPE May 24, 02:05 UTCMay 24, 02:35 UTC30m
2026-05-23 EVA629 LAX → TPE May 23, 13:35 UTCMay 24, 00:35 UTC11h 0m
2026-05-23 EVA629 LAX → TPE May 23, 09:25 UTCMay 23, 10:20 UTC55m
2026-05-22 EVA630 TPE → LAX May 22, 21:40 UTCMay 23, 07:00 UTC9h 19m
2026-05-22 EVA630 TPE → LAX May 22, 19:35 UTCMay 22, 19:55 UTC20m
2026-05-22 EVA6062 HAN → TPE May 22, 06:40 UTCMay 22, 14:05 UTC7h 25m
2026-05-22 EVA6061 TPE → SIN May 22, 00:40 UTCMay 22, 01:35 UTC55m
2026-05-21 EVA659 ORD → ANC May 21, 21:05 UTCMay 21, 21:35 UTC30m
2026-05-21 EVA659 ORD → ANC May 21, 12:00 UTCMay 21, 19:45 UTC7h 45m
2026-05-21 EVA659 ORD → ANC May 21, 04:35 UTCMay 21, 10:25 UTC5h 50m
2026-05-21 EVA659 ORD → ANC May 21, 00:25 UTCMay 21, 01:45 UTC1h 20m
2026-05-20 EVA658 TPE → ORD May 20, 16:10 UTCMay 20, 21:40 UTC5h 30m
2026-05-20 EVA658 TPE → ORD May 20, 07:45 UTCMay 20, 14:45 UTC7h 0m
2026-05-20 EVA658 TPE → ORD May 20, 06:20 UTCMay 20, 06:35 UTC15m
2026-05-19 EVA682 SZX → TPE May 19, 21:40 UTCMay 19, 23:00 UTC1h 20m
2026-05-19 EVA681 TPE → SZX May 19, 18:35 UTCMay 19, 18:55 UTC20m
2026-05-19 EVA681 TPE → SZX May 19, 17:35 UTCMay 19, 18:00 UTC25m
2026-05-19 EVA663 ORD → ANC May 19, 15:10 UTCMay 19, 15:35 UTC25m
2026-05-19 EVA663 ORD → ANC May 19, 06:20 UTCMay 19, 13:55 UTC7h 35m
2026-05-18 EVA663 ORD → ANC May 18, 23:10 UTCMay 19, 04:50 UTC5h 40m
2026-05-18 EVA662 ANC → ORD May 18, 14:15 UTCMay 18, 19:55 UTC5h 39m
2026-05-18 EVA662 ANC → ORD May 18, 05:20 UTCMay 18, 12:50 UTC7h 30m
2026-05-18 EVA662 ANC → ORD May 18, 03:50 UTCMay 18, 04:00 UTC10m
2026-05-17 EVA665 ATL → ANC May 17, 16:01 UTCMay 18, 00:50 UTC8h 50m
2026-05-17 EVA665 ATL → ANC May 17, 06:50 UTCMay 17, 14:05 UTC7h 15m
2026-05-16 EVA668 TPE → ANC May 16, 21:40 UTCMay 17, 03:55 UTC6h 15m
2026-05-16 EVA668 TPE → ANC May 16, 11:35 UTCMay 16, 20:15 UTC8h 40m
2026-05-15 EVA641 ORD → TPE May 15, 18:15 UTCMay 16, 08:51 UTC14h 36m
2026-05-15 EVA642 TPE → ORD May 15, 09:35 UTCMay 15, 15:10 UTC5h 34m

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-16782 page for operator, model, and routing details .

Mode-S 899123 frequently asked

What is Mode-S code 899123?
899123 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16782.
Where is Mode-S 899123 registered?
Mode-S code 899123 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899123 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899123, octal 42310443, decimal 9,015,587.
What flights does 899123 operate?
Mode-S 899123 has broadcast 20 distinct callsigns, including EVA654, EVA653, EVA634, EVA668, EVA659.