Apparatus

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sensors Mode-S transponder

8990B1

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-16215 · AIRBUS A-321

Hex
8990B1
Octal
42310261
Decimal
9,015,473
Country
TW
Tail
B-16215
Type
A321
No current signal · last broadcast 4h ago
Flights observed
171
Distinct callsigns
20
Country
TW
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 8990B1.

Country allocation

The ICAO 24-bit address 8990B1 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
EVA133 EVA Air 10 2026-05-15
EVA165 EVA Air 8 2026-05-19
EVA153 EVA Air 8 2026-05-18
EVA113 EVA Air 8 2026-05-27
EVA112 EVA Air 8 2026-05-25
EVA386 EVA Air 6 2026-05-26
EVA164 EVA Air 6 2026-05-20
EVA163 EVA Air 6 2026-05-15
EVA134 EVA Air 6 2026-05-14
EVA121 EVA Air 6 2026-05-17
EVA186 EVA Air 5 2026-05-16
EVA157 EVA Air 5 2026-05-21
EVA154 EVA Air 5 2026-05-18
EVA122 EVA Air 5 2026-05-17
EVA870 EVA Air 4 2026-05-29
EVA852 EVA Air 4 2026-05-25
EVA851 EVA Air 4 2026-05-22
EVA809 EVA Air 4 2026-05-12
EVA385 EVA Air 4 2026-05-24
EVA383 EVA Air 4 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EVA258 CNX → TPE May 30, 05:45 UTCMay 30, 08:10 UTC2h 25m
2026-05-30 EVA258 CNX → TPE May 30, 04:50 UTCMay 30, 05:10 UTC20m
2026-05-30 EVA257 TPE → CNX May 30, 00:05 UTCMay 30, 03:20 UTC3h 15m
2026-05-29 EVA870 HKG → TPE May 29, 08:55 UTCMay 29, 09:20 UTC25m
2026-05-29 EVA870 HKG → TPE May 29, 08:00 UTCMay 29, 08:20 UTC20m
2026-05-29 EVA869 TPE → HKG May 29, 05:05 UTCMay 29, 06:20 UTC1h 15m
2026-05-28 EVA870 HKG → TPE May 28, 07:45 UTCMay 28, 09:10 UTC1h 25m
2026-05-28 EVA869 TPE → HKG May 28, 04:55 UTCMay 28, 06:10 UTC1h 15m
2026-05-27 EVA113 OKA → TPE May 27, 23:05 UTCMay 28, 02:40 UTC3h 35m
2026-05-27 EVA870 HKG → TPE May 27, 07:40 UTCMay 27, 09:05 UTC1h 25m
2026-05-27 EVA869 TPE → HKG May 27, 04:55 UTCMay 27, 06:09 UTC1h 15m
2026-05-26 EVA113 OKA → TPE May 26, 22:54 UTCMay 27, 02:54 UTC4h 0m
2026-05-26 EVA386 HAN → TPE May 26, 06:54 UTCMay 26, 13:54 UTC7h 0m
2026-05-25 EVA112 TPE → OKA May 25, 23:00 UTCMay 26, 02:29 UTC3h 30m
2026-05-25 EVA185 OKA → TPE May 25, 08:40 UTCMay 25, 12:10 UTC3h 30m
2026-05-25 EVA852 HKG → TPE May 25, 03:30 UTCMay 25, 05:00 UTC1h 30m
2026-05-24 EVA385 TPE → HAN May 24, 07:10 UTCMay 24, 13:55 UTC6h 45m
2026-05-24 EVA113 OKA → TPE May 24, 02:10 UTCMay 24, 02:40 UTC30m
2026-05-23 EVA112 TPE → OKA May 23, 23:00 UTCMay 23, 23:25 UTC25m
2026-05-23 EVA117 SDJ → TPE May 23, 10:15 UTCMay 23, 10:35 UTC20m
2026-05-23 EVA117 SDJ → TPE May 23, 07:25 UTCMay 23, 08:50 UTC1h 25m
2026-05-23 EVA118 TPE → SDJ May 23, 02:35 UTCMay 23, 05:20 UTC2h 45m
2026-05-22 EVA386 HAN → TPE May 22, 07:05 UTCMay 22, 13:55 UTC6h 50m
2026-05-22 EVA852 HKG → TPE May 22, 04:30 UTCMay 22, 05:05 UTC35m
2026-05-22 EVA852 HKG → TPE May 22, 03:40 UTCMay 22, 04:00 UTC20m
2026-05-22 EVA851 TPE → HKG May 22, 01:45 UTCMay 22, 01:55 UTC10m
2026-05-22 EVA851 TPE → HKG May 22, 00:35 UTCMay 22, 01:05 UTC30m
2026-05-21 EVA101 FUK → TPE May 21, 12:40 UTCMay 21, 12:55 UTC15m
2026-05-21 EVA101 FUK → TPE May 21, 11:00 UTCMay 21, 11:10 UTC10m
2026-05-21 EVA102 TPE → FUK May 21, 09:15 UTCMay 21, 09:30 UTC15m
2026-05-21 EVA102 TPE → FUK May 21, 07:40 UTCMay 21, 08:05 UTC25m
2026-05-21 EVA157 KMQ → TPE May 21, 05:45 UTCMay 21, 06:05 UTC20m
2026-05-21 EVA157 KMQ → TPE May 21, 03:25 UTCMay 21, 04:15 UTC50m
2026-05-20 EVA158 TPE → KMQ May 20, 22:45 UTCMay 21, 00:55 UTC2h 10m
2026-05-20 EVA164 TPE → PUS May 20, 06:55 UTCMay 20, 12:20 UTC5h 25m
2026-05-20 EVA113 OKA → TPE May 20, 01:50 UTCMay 20, 02:55 UTC1h 5m
2026-05-19 EVA112 TPE → OKA May 19, 23:15 UTCMay 20, 00:20 UTC1h 5m
2026-05-19 EVA165 CTS → TPE May 19, 07:30 UTCMay 19, 07:50 UTC20m
2026-05-19 EVA165 CTS → TPE May 19, 04:10 UTCMay 19, 06:05 UTC1h 55m
2026-05-18 EVA166 TPE → CTS May 18, 23:05 UTCMay 19, 02:50 UTC3h 45m
2026-05-18 EVA153 ICN → TPE May 18, 05:30 UTCMay 18, 07:30 UTC2h 0m
2026-05-18 EVA154 TPE → ICN May 18, 01:35 UTCMay 18, 03:50 UTC2h 15m
2026-05-17 EVA121 AOJ → TPE May 17, 07:20 UTCMay 17, 10:15 UTC2h 55m
2026-05-17 EVA122 TPE → AOJ May 17, 03:45 UTCMay 17, 05:30 UTC1h 45m
2026-05-17 EVA122 TPE → AOJ May 17, 02:10 UTCMay 17, 02:20 UTC10m
2026-05-16 EVA185 OKA → TPE May 16, 11:35 UTCMay 16, 12:35 UTC1h 0m
2026-05-16 EVA186 TPE → OKA May 16, 09:10 UTCMay 16, 09:35 UTC25m
2026-05-16 EVA157 KMQ → TPE May 16, 05:05 UTCMay 16, 05:40 UTC35m
2026-05-16 EVA157 KMQ → TPE May 16, 03:00 UTCMay 16, 03:50 UTC50m
2026-05-16 EVA158 TPE → KMQ May 16, 00:35 UTCMay 16, 01:20 UTC45m

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-16215 page for operator, model, and routing details .

Mode-S 8990B1 frequently asked

What is Mode-S code 8990B1?
8990B1 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-16215.
Where is Mode-S 8990B1 registered?
Mode-S code 8990B1 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8990B1 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8990B1, octal 42310261, decimal 9,015,473.
What flights does 8990B1 operate?
Mode-S 8990B1 has broadcast 20 distinct callsigns, including EVA133, EVA165, EVA153, EVA113, EVA112.