sensors Mode-S transponder

888201

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A820 · AIRBUS A-330-300

Hex
888201
Octal
42101001
Decimal
8,946,177
Country
VN
Tail
VN-A820
Type
A333
No current signal · last broadcast 21h ago
Flights observed
7
Distinct callsigns
2
Country
VN
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 888201.

Country allocation

The ICAO 24-bit address 888201 falls within the block assigned to Vietnam (VN) by ICAO Annex 10, Volume III. Every aircraft registered in Vietnam 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
VJC86 VietJet Air 5 2026-04-14
VJC85 VietJet Air 2 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 VJC86 SYD → SGN Apr 14, 08:05 UTCApr 14, 08:25 UTC20m
2026-04-13 VJC85 SGN → SYD Apr 13, 20:45 UTCApr 13, 21:25 UTC40m
2026-04-13 VJC85 SGN → SYD Apr 13, 14:30 UTCApr 13, 14:55 UTC25m
2026-04-13 VJC86 SYD → SGN Apr 13, 08:20 UTCApr 13, 08:35 UTC15m
2026-04-13 VJC86 SYD → SGN Apr 13, 08:10 UTCApr 13, 08:35 UTC25m
2026-04-13 VJC86 SYD → SGN Apr 13, 05:15 UTCApr 13, 08:15 UTC3h 0m
2026-04-13 VJC86 SYD → SGN Apr 13, 01:00 UTCApr 13, 01:40 UTC40m

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 VN-A820 page for operator, model, and routing details .

Mode-S 888201 frequently asked

What is Mode-S code 888201?
888201 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A820.
Where is Mode-S 888201 registered?
Mode-S code 888201 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 888201 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 888201, octal 42101001, decimal 8,946,177.
What flights does 888201 operate?
Mode-S 888201 has broadcast 2 distinct callsigns, including VJC86, VJC85.