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
Transponder active on ground
Flights observed
247
Distinct callsigns
20
Country
TW
Last broadcast
Jul 26, 16:40 UTC

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 20 distinct

Callsign Airline Flights Last seen
EVA032 - 35 2026-07-22
EVA031 EVA Air 33 2026-07-23
EVA052 EVA Air 31 2026-07-26
EVA051 EVA Air 25 2026-07-25
EVA036 - 19 2026-07-10
EVA035 - 18 2026-07-11
EVA392 EVA Air 16 2026-07-26
EVA391 - 12 2026-07-08
EVA398 - 11 2026-07-18
EVA711 - 6 2026-07-10
EVA005 - 6 2026-07-03
EVA712 - 4 2026-07-10
EVA397 EVA Air 4 2026-07-22
EVA272 - 4 2026-06-25
EVA271 - 4 2026-06-25
EVA225 - 3 2026-06-23
EVA006 - 3 2026-07-02
UIA187 Uni Air 2 2026-05-22
EVA226 - 2 2026-06-24
EVA056 EVA Air 2 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EVA052 TPE → IAH Jul 26, 15:20 UTCJul 26, 16:40 UTC1h 20m
2026-07-26 EVA052 TPE → IAH Jul 26, 13:45 UTCJul 26, 14:05 UTC20m
2026-07-26 EVA392 SGN → TPE Jul 26, 01:45 UTCJul 26, 09:35 UTC7h 51m
2026-07-25 EVA051 IAH → TPE Jul 25, 21:30 UTCJul 25, 21:45 UTC15m
2026-07-25 EVA051 IAH → TPE Jul 25, 06:55 UTCJul 25, 21:00 UTC14h 5m
2026-07-24 EVA052 TPE → IAH Jul 24, 15:50 UTCJul 25, 04:00 UTC12h 10m
2026-07-24 EVA052 TPE → IAH Jul 24, 14:15 UTCJul 24, 14:25 UTC10m
2026-07-23 EVA031 JFK → TPE Jul 23, 21:20 UTCJul 23, 21:45 UTC25m
2026-07-23 EVA031 JFK → TPE Jul 23, 06:20 UTCJul 23, 20:05 UTC13h 45m
2026-07-22 EVA032 TPE → JFK Jul 22, 13:30 UTCJul 23, 01:30 UTC12h 0m
2026-07-22 EVA032 - Jul 22, 11:35 UTCJul 22, 11:50 UTC15m
2026-07-22 EVA397 TPE → HAN Jul 22, 01:25 UTCJul 22, 02:35 UTC1h 10m
2026-07-21 EVA031 - Jul 21, 23:05 UTCJul 21, 23:20 UTC15m
2026-07-21 EVA031 - Jul 21, 07:45 UTCJul 21, 21:50 UTC14h 5m
2026-07-20 EVA032 TPE → JFK Jul 20, 11:30 UTCJul 21, 01:50 UTC14h 20m
2026-07-20 EVA392 SGN → TPE Jul 20, 01:55 UTCJul 20, 09:15 UTC7h 20m
2026-07-19 EVA031 - Jul 19, 23:15 UTCJul 19, 23:40 UTC25m
2026-07-19 EVA031 - Jul 19, 08:05 UTCJul 19, 22:05 UTC14h 0m
2026-07-18 EVA032 - Jul 18, 13:30 UTCJul 19, 02:10 UTC12h 40m
2026-07-18 EVA032 - Jul 18, 11:50 UTCJul 18, 12:00 UTC10m
2026-07-18 EVA398 - Jul 18, 06:30 UTCJul 18, 08:00 UTC1h 30m
2026-07-18 EVA398 - Jul 18, 05:40 UTCJul 18, 05:50 UTC10m
2026-07-18 EVA397 - Jul 18, 01:30 UTCJul 18, 02:35 UTC1h 5m
2026-07-17 EVA031 JFK → TPE Jul 17, 06:25 UTCJul 17, 21:25 UTC15h 0m
2026-07-16 EVA032 - Jul 16, 13:30 UTCJul 17, 02:30 UTC13h 0m
2026-07-16 EVA032 - Jul 16, 11:50 UTCJul 16, 12:00 UTC10m
2026-07-15 EVA051 - Jul 15, 21:10 UTCJul 15, 21:30 UTC20m
2026-07-15 EVA051 - Jul 15, 06:55 UTCJul 15, 20:05 UTC13h 10m
2026-07-14 EVA052 - Jul 14, 13:50 UTCJul 15, 03:55 UTC14h 4m
2026-07-14 EVA392 - Jul 14, 02:35 UTCJul 14, 10:40 UTC8h 5m
2026-07-13 EVA031 - Jul 13, 20:45 UTCJul 13, 21:10 UTC25m
2026-07-13 EVA031 - Jul 13, 06:05 UTCJul 13, 19:45 UTC13h 40m
2026-07-12 EVA032 - Jul 12, 13:35 UTCJul 13, 02:30 UTC12h 55m
2026-07-12 EVA032 - Jul 12, 12:01 UTCJul 12, 12:15 UTC15m
2026-07-11 EVA035 - Jul 11, 22:05 UTCJul 11, 22:30 UTC25m
2026-07-11 EVA035 - Jul 11, 07:45 UTCJul 11, 20:45 UTC13h 0m
2026-07-10 EVA036 - Jul 10, 12:30 UTCJul 11, 01:25 UTC12h 55m
2026-07-10 EVA036 - Jul 10, 11:45 UTCJul 10, 12:00 UTC15m
2026-07-10 EVA711 - Jul 10, 06:25 UTCJul 10, 06:50 UTC25m
2026-07-10 EVA712 - Jul 10, 02:10 UTCJul 10, 02:35 UTC25m
2026-07-09 EVA051 - Jul 9, 07:10 UTCJul 9, 22:10 UTC15h 0m
2026-07-08 EVA052 - Jul 8, 14:35 UTCJul 9, 03:25 UTC12h 50m
2026-07-08 EVA052 TPE → IAH Jul 8, 13:55 UTCJul 8, 14:05 UTC10m
2026-07-08 EVA391 TPE → TPE Jul 8, 01:45 UTCJul 8, 09:30 UTC7h 45m
2026-07-07 EVA035 YYZ → TPE Jul 7, 20:20 UTCJul 7, 20:40 UTC20m
2026-07-07 EVA035 YYZ → TPE Jul 7, 06:25 UTCJul 7, 19:10 UTC12h 45m
2026-07-06 EVA036 TPE → YYZ Jul 6, 13:40 UTCJul 7, 01:50 UTC12h 10m
2026-07-06 EVA036 TPE → YYZ Jul 6, 12:10 UTCJul 6, 12:30 UTC20m
2026-07-05 EVA031 JFK → TPE Jul 5, 20:55 UTCJul 5, 21:25 UTC30m
2026-07-05 EVA031 JFK → TPE Jul 5, 06:25 UTCJul 5, 19:40 UTC13h 15m

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?
Mode-S 8990E1 is currently broadcasting from the ground.
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 20 distinct callsigns, including EVA032, EVA031, EVA052, EVA051, EVA036.