sensors Mode-S transponder

88813D

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A634 · AIRBUS A-321

Hex
88813D
Octal
42100475
Decimal
8,945,981
Country
VN
Tail
VN-A634
Type
A321
No current signal · last broadcast 23h ago
Flights observed
6
Distinct callsigns
6
Country
VN
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 88813D.

Country allocation

The ICAO 24-bit address 88813D 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 6 distinct

Callsign Airline Flights Last seen
VJC970 VietJet Air 1 2026-04-13
VJC859 - 1 2026-04-12
VJC858 VietJet Air 1 2026-04-12
VJC813 - 1 2026-04-13
VJC7814 - 1 2026-04-13
VJC7813 - 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 VJC7814 - Apr 13, 19:50 UTCApr 13, 23:25 UTC3h 35m
2026-04-13 VJC7813 - Apr 13, 19:30 UTCApr 13, 19:45 UTC15m
2026-04-13 VJC970 SIN → DAD Apr 13, 03:25 UTCApr 13, 03:50 UTC25m
2026-04-13 VJC813 - Apr 13, 01:35 UTCApr 13, 01:50 UTC15m
2026-04-12 VJC859 - Apr 12, 19:25 UTCApr 12, 19:55 UTC30m
2026-04-12 VJC858 SGN → MNL Apr 12, 17:35 UTCApr 12, 18:10 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 VN-A634 page for operator, model, and routing details .

Mode-S 88813D frequently asked

What is Mode-S code 88813D?
88813D is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A634.
Where is Mode-S 88813D registered?
Mode-S code 88813D is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88813D broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88813D, octal 42100475, decimal 8,945,981.
What flights does 88813D operate?
Mode-S 88813D has broadcast 6 distinct callsigns, including VJC970, VJC859, VJC858, VJC813, VJC7814.