sensors Mode-S transponder

8881F3

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A548 · AIRBUS A-321neo

Hex
8881F3
Octal
42100763
Decimal
8,946,163
Country
VN
Tail
VN-A548
Type
A21N
Broadcasting now · callsign VJC921 · 32,025 ft
Flights observed
5
Distinct callsigns
4
Country
VN
Last broadcast
15h ago

Current position

8881F3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 8881F3 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 4 distinct

Callsign Airline Flights Last seen
VJC935 - 2 2026-04-14
VJC934 VietJet Air 1 2026-04-14
VJC931 - 1 2026-04-13
VJC930 - 1 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 VJC935 - Apr 14, 09:10 UTCApr 14, 09:30 UTC20m
2026-04-14 VJC935 - Apr 14, 07:50 UTCApr 14, 09:05 UTC1h 15m
2026-04-14 VJC934 HAN → NRT Apr 14, 05:15 UTCApr 14, 05:50 UTC35m
2026-04-13 VJC931 - Apr 13, 07:15 UTCApr 13, 07:55 UTC40m
2026-04-13 VJC930 - Apr 13, 04:55 UTCApr 13, 05:25 UTC30m

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-A548 page for operator, model, and routing details .

Mode-S 8881F3 frequently asked

What is Mode-S code 8881F3?
8881F3 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A548.
Where is Mode-S 8881F3 registered?
Mode-S code 8881F3 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8881F3 broadcasting right now?
Yes. Mode-S 8881F3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8881F3, octal 42100763, decimal 8,946,163.
What flights does 8881F3 operate?
Mode-S 8881F3 has broadcast 4 distinct callsigns, including VJC935, VJC934, VJC931, VJC930.