Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

899121

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16781 · BOEING 777-200LR

Hex
899121
Octal
42310441
Decimal
9,015,585
Country
TW
Tail
B-16781
Type
B77L
No current signal · last broadcast 46m ago
Flights observed
327
Distinct callsigns
20
Country
TW
Last broadcast
46m ago

Last known position

Most recent position reported by Mode-S 899121.

Country allocation

The ICAO 24-bit address 899121 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
EVA668 - 20 2026-06-29
EVA667 - 16 2026-06-30
EVA659 - 15 2026-07-02
EVA658 - 14 2026-07-01
EVA654 - 13 2026-07-09
EVA642 EVA Air 13 2026-06-12
EVA653 - 9 2026-07-11
EVA641 EVA Air 9 2026-06-13
EVA638 - 9 2026-07-05
EVA608 EVA Air 9 2026-05-30
EVA634 - 8 2026-06-27
EVA621 EVA Air 8 2026-05-20
EVA6529 - 7 2026-07-08
EVA646 - 7 2026-07-14
EVA637 - 7 2026-07-06
EVA620 EVA Air 7 2026-07-02
EVA607 EVA Air 7 2026-05-31
EVA696 EVA Air 6 2026-05-12
EVA6535 - 6 2026-07-08
EVA647 - 6 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EVA646 ANC → ORD Jul 14, 12:25 UTCJul 14, 17:40 UTC5h 15m
2026-07-14 EVA646 TPE → ANC Jul 14, 01:35 UTCJul 14, 10:25 UTC8h 50m
2026-07-13 EVA6004 - Jul 13, 21:45 UTCJul 13, 22:45 UTC1h 0m
2026-07-13 EVA6004 - Jul 13, 19:35 UTCJul 13, 19:45 UTC10m
2026-07-13 EVA6003 - Jul 13, 16:40 UTCJul 13, 16:50 UTC10m
2026-07-13 EVA6003 - Jul 13, 13:45 UTCJul 13, 14:25 UTC40m
2026-07-13 EVA6062 - Jul 13, 09:40 UTCJul 13, 11:10 UTC1h 30m
2026-07-13 EVA6062 - Jul 13, 08:45 UTCJul 13, 08:55 UTC10m
2026-07-13 EVA6061 - Jul 13, 03:45 UTCJul 13, 04:10 UTC25m
2026-07-13 EVA6061 - Jul 13, 01:01 UTCJul 13, 01:10 UTC10m
2026-07-12 EVA6061 - Jul 12, 21:25 UTCJul 12, 22:05 UTC40m
2026-07-12 EVA671 TPE → TPE Jul 12, 11:35 UTCJul 12, 17:30 UTC5h 55m
2026-07-12 EVA6328 - Jul 12, 06:50 UTCJul 12, 08:30 UTC1h 40m
2026-07-12 EVA6327 - Jul 12, 03:55 UTCJul 12, 04:05 UTC10m
2026-07-12 EVA6327 - Jul 12, 02:55 UTCJul 12, 03:20 UTC25m
2026-07-11 EVA653 - Jul 11, 23:55 UTCJul 12, 00:30 UTC35m
2026-07-11 EVA653 - Jul 11, 12:45 UTCJul 11, 22:50 UTC10h 5m
2026-07-10 EVA653 - Jul 10, 01:45 UTCJul 10, 05:25 UTC3h 40m
2026-07-09 EVA654 - Jul 9, 17:45 UTCJul 9, 23:05 UTC5h 20m
2026-07-09 EVA654 TPE → ANC Jul 9, 07:45 UTCJul 9, 16:30 UTC8h 45m
2026-07-09 EVA6530 HKG → TPE Jul 9, 03:30 UTCJul 9, 04:50 UTC1h 20m
2026-07-08 EVA6529 TPE → HKG Jul 8, 23:25 UTCJul 9, 00:40 UTC1h 15m
2026-07-08 EVA6536 HKG → TPE Jul 8, 19:50 UTCJul 8, 21:20 UTC1h 30m
2026-07-08 EVA6535 TPE → HKG Jul 8, 15:30 UTCJul 8, 16:50 UTC1h 20m
2026-07-07 EVA653 ORD → TPE Jul 7, 21:05 UTCJul 8, 11:25 UTC14h 20m
2026-07-07 EVA654 ANC → ORD Jul 7, 13:10 UTCJul 7, 18:35 UTC5h 25m
2026-07-07 EVA654 - Jul 7, 04:30 UTCJul 7, 11:25 UTC6h 55m
2026-07-07 EVA654 - Jul 7, 03:00 UTCJul 7, 03:15 UTC15m
2026-07-06 EVA672 TPE → TPE Jul 6, 17:30 UTCJul 6, 23:20 UTC5h 50m
2026-07-06 EVA637 - Jul 6, 14:30 UTCJul 6, 14:55 UTC25m
2026-07-06 EVA637 - Jul 6, 03:30 UTCJul 6, 13:15 UTC9h 45m
2026-07-05 EVA637 JFK → SEA Jul 5, 18:55 UTCJul 6, 00:40 UTC5h 45m
2026-07-05 EVA638 - Jul 5, 09:30 UTCJul 5, 15:55 UTC6h 25m
2026-07-05 EVA638 - Jul 5, 01:25 UTCJul 5, 08:05 UTC6h 40m
2026-07-04 EVA638 - Jul 4, 23:30 UTCJul 4, 23:50 UTC20m
2026-07-04 EVA6312 - Jul 4, 15:10 UTCJul 4, 19:55 UTC4h 45m
2026-07-04 EVA6004 - Jul 4, 09:30 UTCJul 4, 12:40 UTC3h 10m
2026-07-04 EVA6003 - Jul 4, 04:05 UTCJul 4, 07:20 UTC3h 15m
2026-07-03 EVA619 - Jul 3, 10:55 UTCJul 3, 23:50 UTC12h 55m
2026-07-02 EVA620 TPE → LAX Jul 2, 22:20 UTCJul 3, 07:45 UTC9h 25m
2026-07-02 EVA620 TPE → LAX Jul 2, 20:30 UTCJul 2, 20:45 UTC15m
2026-07-02 EVA659 - Jul 2, 14:00 UTCJul 2, 14:35 UTC35m
2026-07-02 EVA659 - Jul 2, 05:00 UTCJul 2, 12:40 UTC7h 40m
2026-07-01 EVA659 YYZ → ANC Jul 1, 21:30 UTCJul 2, 03:25 UTC5h 55m
2026-07-01 EVA658 - Jul 1, 17:25 UTCJul 1, 18:30 UTC1h 5m
2026-07-01 EVA658 ANC → ORD Jul 1, 09:40 UTCJul 1, 15:15 UTC5h 35m
2026-07-01 EVA658 - Jul 1, 01:35 UTCJul 1, 08:25 UTC6h 50m
2026-07-01 EVA658 - Jul 1, 00:10 UTCJul 1, 00:20 UTC10m
2026-06-30 EVA667 KIX → TPE Jun 30, 13:00 UTCJun 30, 15:15 UTC2h 15m
2026-06-29 EVA667 ATL → KIX Jun 29, 21:44 UTCJun 30, 11:20 UTC13h 36m

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-16781 page for operator, model, and routing details .

Mode-S 899121 frequently asked

What is Mode-S code 899121?
899121 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16781.
Where is Mode-S 899121 registered?
Mode-S code 899121 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899121 broadcasting right now?
No active broadcast right now. Last signal was 46m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899121, octal 42310441, decimal 9,015,585.
What flights does 899121 operate?
Mode-S 899121 has broadcast 20 distinct callsigns, including EVA668, EVA667, EVA659, EVA658, EVA654.