sensors Mode-S transponder

89505A

ICAO 24-bit transponder address · allocated to Brunei

Currently assigned to V8-DLC · BOEING 787-8 Dreamliner

Hex
89505A
Octal
42250132
Decimal
8,999,002
Country
BN
Tail
V8-DLC
Type
B788
No current signal · last broadcast 2d ago
Flights observed
11
Distinct callsigns
2
Country
BN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 89505A.

Country allocation

The ICAO 24-bit address 89505A falls within the block assigned to Brunei (BN) by ICAO Annex 10, Volume III. Every aircraft registered in Brunei 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 2 distinct

Callsign Airline Flights Last seen
RBA3 - 7 2026-04-15
RBA4 - 4 2026-04-16

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-16 RBA4 - Apr 16, 07:09 UTCApr 16, 07:29 UTC20m
2026-04-16 RBA4 - Apr 16, 05:09 UTCApr 16, 07:05 UTC1h 55m
2026-04-15 RBA4 - Apr 15, 19:05 UTCApr 15, 21:00 UTC1h 55m
2026-04-15 RBA4 - Apr 15, 17:05 UTCApr 15, 19:00 UTC1h 55m
2026-04-15 RBA3 - Apr 15, 05:00 UTCApr 15, 05:40 UTC40m
2026-04-15 RBA3 - Apr 15, 03:00 UTCApr 15, 04:50 UTC1h 50m
2026-04-15 RBA3 - Apr 15, 00:55 UTCApr 15, 01:50 UTC55m
2026-04-15 RBA3 - Apr 15, 00:35 UTCApr 15, 00:50 UTC15m
2026-04-14 RBA3 - Apr 14, 21:20 UTCApr 14, 21:45 UTC25m
2026-04-14 RBA3 - Apr 14, 15:45 UTCApr 14, 15:55 UTC10m
2026-04-14 RBA3 - Apr 14, 13:40 UTCApr 14, 14:00 UTC20m

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 V8-DLC page for operator, model, and routing details .

Mode-S 89505A frequently asked

What is Mode-S code 89505A?
89505A is an ICAO 24-bit transponder address. Allocated to Brunei. Assigned to V8-DLC.
Where is Mode-S 89505A registered?
Mode-S code 89505A is allocated to Brunei (BN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 89505A broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 89505A, octal 42250132, decimal 8,999,002.
What flights does 89505A operate?
Mode-S 89505A has broadcast 2 distinct callsigns, including RBA3, RBA4.