sensors Mode-S transponder

8880C5

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A609 · AIRBUS A-321

Hex
8880C5
Octal
42100305
Decimal
8,945,861
Country
VN
Tail
VN-A609
Type
A321
No current signal · last broadcast 16h ago
Flights observed
5
Distinct callsigns
4
Country
VN
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 8880C5.

Country allocation

The ICAO 24-bit address 8880C5 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
HVN578 - 2 2026-04-13
HVN593 - 1 2026-04-14
HVN592 Vietnam Airlines 1 2026-04-14
HVN517 Vietnam Airlines 1 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 HVN593 - Apr 14, 06:45 UTCApr 14, 06:55 UTC10m
2026-04-14 HVN592 HAN → HKG Apr 14, 05:15 UTCApr 14, 05:20 UTC5m
2026-04-13 HVN578 - Apr 13, 12:20 UTCApr 13, 12:45 UTC25m
2026-04-13 HVN578 - Apr 13, 11:20 UTCApr 13, 12:15 UTC55m
2026-04-13 HVN517 PKX → SGN Apr 13, 03:40 UTCApr 13, 04:00 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 VN-A609 page for operator, model, and routing details .

Mode-S 8880C5 frequently asked

What is Mode-S code 8880C5?
8880C5 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A609.
Where is Mode-S 8880C5 registered?
Mode-S code 8880C5 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8880C5 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8880C5, octal 42100305, decimal 8,945,861.
What flights does 8880C5 operate?
Mode-S 8880C5 has broadcast 4 distinct callsigns, including HVN578, HVN593, HVN592, HVN517.