sensors Mode-S transponder

8990E1

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16719 · BOEING 777-300ER

Hex
8990E1
Octal
42310341
Decimal
9,015,521
Country
TW
Tail
B-16719
Type
B77W
No current signal · last broadcast 3h ago
Flights observed
118
Distinct callsigns
18
Country
TW
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 8990E1.

Country allocation

The ICAO 24-bit address 8990E1 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 18 distinct

Callsign Airline Flights Last seen
EVA052 EVA Air 16 2026-05-25
EVA051 EVA Air 14 2026-05-26
EVA036 EVA Air 13 2026-05-29
EVA031 EVA Air 13 2026-05-21
EVA035 EVA Air 11 2026-05-28
EVA032 EVA Air 11 2026-05-20
EVA392 EVA Air 9 2026-05-17
EVA391 EVA Air 8 2026-05-27
EVA398 EVA Air 7 2026-05-09
EVA711 EVA Air 4 2026-05-29
EVA712 EVA Air 3 2026-05-22
UIA187 Uni Air 2 2026-05-22
EVA005 - 2 2026-05-20
UIA188 Uni Air 1 2026-05-22
EVA397 EVA Air 1 2026-04-17
EVA272 EVA Air 1 2026-05-23
EVA271 EVA Air 1 2026-05-23
EVA006 - 1 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EVA036 TPE → YYZ May 29, 13:15 UTCMay 30, 01:20 UTC12h 5m
2026-05-29 EVA036 TPE → YYZ May 29, 11:50 UTCMay 29, 12:00 UTC10m
2026-05-29 EVA711 PVG → TPE May 29, 02:25 UTCMay 29, 07:05 UTC4h 40m
2026-05-28 EVA035 YYZ → TPE May 28, 21:05 UTCMay 28, 21:40 UTC35m
2026-05-28 EVA035 YYZ → TPE May 28, 06:20 UTCMay 28, 19:50 UTC13h 30m
2026-05-27 EVA036 TPE → YYZ May 27, 13:45 UTCMay 28, 01:30 UTC11h 45m
2026-05-27 EVA036 TPE → YYZ May 27, 11:55 UTCMay 27, 12:10 UTC15m
2026-05-27 EVA391 TPE → SGN May 27, 02:04 UTCMay 27, 09:35 UTC7h 31m
2026-05-26 EVA051 IAH → TPE May 26, 07:05 UTCMay 26, 22:09 UTC15h 5m
2026-05-25 EVA052 TPE → IAH May 25, 16:00 UTCMay 26, 03:50 UTC11h 49m
2026-05-25 EVA052 TPE → IAH May 25, 14:05 UTCMay 25, 14:20 UTC15m
2026-05-24 EVA035 YYZ → TPE May 24, 19:55 UTCMay 24, 20:20 UTC25m
2026-05-24 EVA035 YYZ → TPE May 24, 06:10 UTCMay 24, 18:45 UTC12h 35m
2026-05-23 EVA036 TPE → YYZ May 23, 13:10 UTCMay 24, 01:10 UTC12h 1m
2026-05-23 EVA036 TPE → YYZ May 23, 11:40 UTCMay 23, 11:55 UTC15m
2026-05-23 EVA272 MNL → TPE May 23, 05:35 UTCMay 23, 07:20 UTC1h 45m
2026-05-23 EVA271 TPE → MNL May 23, 01:50 UTCMay 23, 03:35 UTC1h 45m
2026-05-22 UIA188 SZX → TPE May 22, 12:10 UTCMay 22, 13:35 UTC1h 25m
2026-05-22 UIA187 TPE → SZX May 22, 09:45 UTCMay 22, 10:05 UTC20m
2026-05-22 UIA187 TPE → SZX May 22, 08:40 UTCMay 22, 09:10 UTC30m
2026-05-22 EVA711 PVG → TPE May 22, 06:20 UTCMay 22, 06:40 UTC20m
2026-05-22 EVA712 TPE → PVG May 22, 02:05 UTCMay 22, 02:25 UTC20m
2026-05-21 EVA031 JFK → TPE May 21, 21:45 UTCMay 21, 22:05 UTC20m
2026-05-21 EVA031 JFK → TPE May 21, 06:15 UTCMay 21, 20:30 UTC14h 15m
2026-05-20 EVA032 TPE → JFK May 20, 13:30 UTCMay 21, 02:00 UTC12h 30m
2026-05-20 EVA032 TPE → JFK May 20, 11:40 UTCMay 20, 12:00 UTC20m
2026-05-20 EVA005 - May 20, 08:40 UTCMay 20, 09:05 UTC25m
2026-05-19 EVA005 - May 19, 19:25 UTCMay 20, 07:15 UTC11h 51m
2026-05-19 EVA006 - May 19, 02:30 UTCMay 19, 14:05 UTC11h 35m
2026-05-18 EVA051 IAH → TPE May 18, 06:45 UTCMay 18, 21:50 UTC15h 4m
2026-05-17 EVA052 TPE → IAH May 17, 13:55 UTCMay 18, 03:30 UTC13h 35m
2026-05-17 EVA392 SGN → TPE May 17, 01:55 UTCMay 17, 10:25 UTC8h 30m
2026-05-16 EVA035 YYZ → TPE May 16, 20:35 UTCMay 16, 21:00 UTC25m
2026-05-16 EVA035 YYZ → TPE May 16, 06:01 UTCMay 16, 19:20 UTC13h 20m
2026-05-15 EVA036 TPE → YYZ May 15, 12:00 UTCMay 16, 01:25 UTC13h 24m
2026-05-15 EVA392 SGN → TPE May 15, 01:45 UTCMay 15, 09:25 UTC7h 40m
2026-05-14 EVA392 SGN → TPE May 14, 01:45 UTCMay 14, 09:25 UTC7h 40m
2026-05-13 EVA051 IAH → TPE May 13, 06:40 UTCMay 13, 22:10 UTC15h 30m
2026-05-12 EVA052 TPE → IAH May 12, 13:45 UTCMay 13, 03:05 UTC13h 20m
2026-05-11 EVA391 TPE → SGN May 11, 01:45 UTCMay 11, 09:05 UTC7h 20m
2026-05-10 EVA051 IAH → TPE May 10, 06:50 UTCMay 10, 22:45 UTC15h 55m
2026-05-09 EVA052 TPE → IAH May 9, 15:30 UTCMay 10, 02:34 UTC11h 5m
2026-05-09 EVA052 TPE → IAH May 9, 13:45 UTCMay 9, 13:55 UTC10m
2026-05-09 EVA398 HAN → TPE May 9, 01:30 UTCMay 9, 07:50 UTC6h 20m
2026-05-08 EVA035 YYZ → TPE May 8, 06:04 UTCMay 8, 22:20 UTC16h 15m
2026-05-07 EVA036 TPE → YYZ May 7, 13:45 UTCMay 8, 01:24 UTC11h 40m
2026-05-07 EVA036 TPE → YYZ May 7, 11:55 UTCMay 7, 12:05 UTC10m
2026-05-07 EVA398 HAN → TPE May 7, 01:45 UTCMay 7, 08:00 UTC6h 15m
2026-05-06 EVA035 YYZ → TPE May 6, 06:35 UTCMay 6, 21:40 UTC15h 4m
2026-05-05 EVA036 TPE → YYZ May 5, 13:50 UTCMay 6, 01:25 UTC11h 35m

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-16719 page for operator, model, and routing details .

Mode-S 8990E1 frequently asked

What is Mode-S code 8990E1?
8990E1 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16719.
Where is Mode-S 8990E1 registered?
Mode-S code 8990E1 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8990E1 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8990E1, octal 42310341, decimal 9,015,521.
What flights does 8990E1 operate?
Mode-S 8990E1 has broadcast 18 distinct callsigns, including EVA052, EVA051, EVA036, EVA031, EVA035.