sensors Mode-S transponder

8881AE

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A534 · AIRBUS A-321neo

Hex
8881AE
Octal
42100656
Decimal
8,946,094
Country
VN
Tail
VN-A534
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
4
Distinct callsigns
3
Country
VN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 8881AE.

Country allocation

The ICAO 24-bit address 8881AE 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 3 distinct

Callsign Airline Flights Last seen
VJC1802 - 2 2026-04-13
VJC894 VietJet Air 1 2026-04-13
VJC1801 - 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 VJC1802 - Apr 13, 21:15 UTCApr 13, 21:40 UTC25m
2026-04-13 VJC1802 - Apr 13, 18:15 UTCApr 13, 19:40 UTC1h 25m
2026-04-13 VJC1801 - Apr 13, 13:20 UTCApr 13, 13:45 UTC25m
2026-04-13 VJC894 DPS → SGN Apr 13, 07:55 UTCApr 13, 08:15 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 VN-A534 page for operator, model, and routing details .

Mode-S 8881AE frequently asked

What is Mode-S code 8881AE?
8881AE is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A534.
Where is Mode-S 8881AE registered?
Mode-S code 8881AE is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881AE broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881AE, octal 42100656, decimal 8,946,094.
What flights does 8881AE operate?
Mode-S 8881AE has broadcast 3 distinct callsigns, including VJC1802, VJC894, VJC1801.