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
355
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
EVA164 - 20 2026-07-04
EVA165 - 19 2026-07-10
EVA163 - 18 2026-07-04
EVA133 - 17 2026-07-03
EVA113 - 16 2026-07-05
EVA166 - 14 2026-07-09
EVA112 EVA Air 14 2026-07-04
EVA870 - 12 2026-07-05
EVA157 - 12 2026-06-19
EVA869 - 11 2026-07-05
EVA175 - 11 2026-07-14
EVA158 EVA Air 11 2026-06-19
EVA134 EVA Air 11 2026-07-02
EVA101 - 11 2026-06-30
EVA102 - 10 2026-06-30
EVA851 - 8 2026-07-14
EVA186 - 8 2026-07-07
EVA185 - 8 2026-07-07
EVA176 - 8 2026-07-14
EVA153 EVA Air 8 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EVA175 - Jul 14, 12:05 UTCJul 14, 12:30 UTC25m
2026-07-14 EVA175 - Jul 14, 10:20 UTCJul 14, 11:05 UTC45m
2026-07-14 EVA176 - Jul 14, 06:30 UTCJul 14, 08:55 UTC2h 25m
2026-07-14 EVA852 HKG → TPE Jul 14, 03:40 UTCJul 14, 05:00 UTC1h 20m
2026-07-14 EVA851 TPE → HKG Jul 14, 00:40 UTCJul 14, 02:00 UTC1h 20m
2026-07-12 EVA117 - Jul 12, 08:20 UTCJul 12, 11:15 UTC2h 55m
2026-07-12 EVA118 - Jul 12, 02:35 UTCJul 12, 05:30 UTC2h 55m
2026-07-10 EVA165 - Jul 10, 04:30 UTCJul 10, 08:10 UTC3h 40m
2026-07-09 EVA166 TPE → CTS Jul 9, 23:10 UTCJul 10, 02:40 UTC3h 30m
2026-07-09 EVA806 - Jul 9, 12:55 UTCJul 9, 14:30 UTC1h 35m
2026-07-09 EVA805 - Jul 9, 09:40 UTCJul 9, 10:50 UTC1h 10m
2026-07-09 EVA165 - Jul 9, 04:20 UTCJul 9, 07:55 UTC3h 35m
2026-07-09 EVA166 - Jul 9, 00:45 UTCJul 9, 02:40 UTC1h 55m
2026-07-08 EVA166 - Jul 8, 23:10 UTCJul 8, 23:30 UTC20m
2026-07-08 EVA165 - Jul 8, 04:15 UTCJul 8, 07:45 UTC3h 30m
2026-07-08 EVA166 - Jul 8, 00:50 UTCJul 8, 02:45 UTC1h 55m
2026-07-07 EVA166 - Jul 7, 23:15 UTCJul 7, 23:30 UTC15m
2026-07-07 EVA185 - Jul 7, 11:50 UTCJul 7, 12:50 UTC1h 0m
2026-07-07 EVA186 - Jul 7, 09:25 UTCJul 7, 09:50 UTC25m
2026-07-07 EVA165 - Jul 7, 07:25 UTCJul 7, 07:55 UTC30m
2026-07-07 EVA165 - Jul 7, 04:20 UTCJul 7, 06:10 UTC1h 50m
2026-07-06 EVA166 - Jul 6, 23:15 UTCJul 7, 02:50 UTC3h 35m
2026-07-06 EVA165 - Jul 6, 07:30 UTCJul 6, 07:55 UTC25m
2026-07-06 EVA165 - Jul 6, 04:15 UTCJul 6, 06:15 UTC2h 0m
2026-07-05 EVA166 TPE → CTS Jul 5, 23:15 UTCJul 6, 02:45 UTC3h 30m
2026-07-05 EVA870 HKG → TPE Jul 5, 08:10 UTCJul 5, 09:40 UTC1h 30m
2026-07-05 EVA869 - Jul 5, 06:00 UTCJul 5, 06:15 UTC15m
2026-07-05 EVA869 - Jul 5, 04:55 UTCJul 5, 05:25 UTC30m
2026-07-05 EVA113 - Jul 5, 02:30 UTCJul 5, 02:50 UTC20m
2026-07-04 EVA112 TPE → OKA Jul 4, 23:10 UTCJul 5, 00:15 UTC1h 5m
2026-07-04 EVA163 - Jul 4, 11:40 UTCJul 4, 12:05 UTC25m
2026-07-04 EVA163 - Jul 4, 10:05 UTCJul 4, 10:30 UTC25m
2026-07-04 EVA164 - Jul 4, 08:15 UTCJul 4, 08:35 UTC20m
2026-07-04 EVA164 - Jul 4, 06:45 UTCJul 4, 07:05 UTC20m
2026-07-03 EVA175 - Jul 3, 12:30 UTCJul 3, 12:45 UTC15m
2026-07-03 EVA175 - Jul 3, 10:25 UTCJul 3, 12:00 UTC1h 35m
2026-07-03 EVA176 TPE → UKB Jul 3, 06:30 UTCJul 3, 09:05 UTC2h 35m
2026-07-03 EVA133 UKB → TPE Jul 3, 02:35 UTCJul 3, 05:05 UTC2h 30m
2026-07-02 EVA134 TPE → UKB Jul 2, 22:45 UTCJul 3, 01:00 UTC2h 15m
2026-07-02 EVA810 - Jul 2, 14:00 UTCJul 2, 15:25 UTC1h 25m
2026-07-02 EVA809 - Jul 2, 12:20 UTCJul 2, 12:40 UTC20m
2026-07-02 EVA809 - Jul 2, 11:15 UTCJul 2, 11:45 UTC30m
2026-07-02 EVA870 - Jul 2, 08:40 UTCJul 2, 09:20 UTC40m
2026-07-02 EVA870 - Jul 2, 07:45 UTCJul 2, 08:05 UTC20m
2026-07-02 EVA869 TPE → HKG Jul 2, 04:55 UTCJul 2, 06:15 UTC1h 20m
2026-07-02 EVA113 - Jul 2, 02:15 UTCJul 2, 02:40 UTC25m
2026-07-01 EVA112 TPE → OKA Jul 1, 23:05 UTCJul 2, 00:15 UTC1h 10m
2026-07-01 EVA258 - Jul 1, 05:25 UTCJul 1, 08:45 UTC3h 20m
2026-07-01 EVA257 - Jul 1, 00:35 UTCJul 1, 03:55 UTC3h 20m
2026-06-30 EVA101 - Jun 30, 12:10 UTCJun 30, 12:45 UTC35m

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 EVA164, EVA165, EVA163, EVA133, EVA113.