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sensors Mode-S transponder

8880A1

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A393 · AIRBUS A-321

Hex
8880A1
Octal
42100241
Decimal
8,945,825
Country
VN
Tail
VN-A393
Type
A321
No current signal · last broadcast 2h ago
Flights observed
175
Distinct callsigns
20
Country
VN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 8880A1.

Country allocation

The ICAO 24-bit address 8880A1 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 20 distinct

Callsign Airline Flights Last seen
HVN630 - 8 2026-06-30
HVN679 Vietnam Airlines 5 2026-06-11
HVN678 Vietnam Airlines 5 2026-06-11
HVN640 Vietnam Airlines 5 2026-05-17
HVN581 - 5 2026-06-21
HVN580 Vietnam Airlines 5 2026-06-21
HVN513 - 5 2026-07-07
HVN680 Vietnam Airlines 4 2026-07-08
HVN651 - 4 2026-06-28
HVN635 - 4 2026-07-12
HVN634 - 4 2026-07-12
HVN631 - 4 2026-06-30
HVN605 - 4 2026-06-20
HVN921 - 3 2026-07-02
HVN681 - 3 2026-07-08
HVN650 - 3 2026-06-28
HVN643 - 3 2026-07-09
HVN601 - 3 2026-07-10
HVN224 Vietnam Airlines 3 2026-07-01
HVN7651 - 2 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 HVN7169 HAN → DAD Jul 14, 12:05 UTCJul 14, 12:20 UTC15m
2026-07-14 HVN1558 - Jul 14, 10:30 UTCJul 14, 10:45 UTC15m
2026-07-14 HVN1559 - Jul 14, 06:55 UTCJul 14, 07:05 UTC10m
2026-07-14 HVN7650 - Jul 14, 05:05 UTCJul 14, 05:25 UTC20m
2026-07-14 HVN7651 - Jul 14, 01:45 UTCJul 14, 02:00 UTC15m
2026-07-14 HVN156 - Jul 14, 00:05 UTCJul 14, 00:15 UTC10m
2026-07-13 HVN626 - Jul 13, 11:15 UTCJul 13, 11:30 UTC15m
2026-07-13 HVN627 - Jul 13, 09:30 UTCJul 13, 09:55 UTC25m
2026-07-13 HVN169 - Jul 13, 05:25 UTCJul 13, 05:40 UTC15m
2026-07-13 HVN164 - Jul 13, 03:40 UTCJul 13, 03:55 UTC15m
2026-07-13 HVN163 - Jul 13, 01:10 UTCJul 13, 01:20 UTC10m
2026-07-12 HVN634 - Jul 12, 23:30 UTCJul 12, 23:40 UTC10m
2026-07-12 HVN634 - Jul 12, 19:40 UTCJul 12, 21:10 UTC1h 30m
2026-07-12 HVN635 - Jul 12, 17:45 UTCJul 12, 18:01 UTC15m
2026-07-12 HVN635 - Jul 12, 14:10 UTCJul 12, 14:20 UTC10m
2026-07-12 HVN836 - Jul 12, 12:20 UTCJul 12, 12:30 UTC10m
2026-07-12 HVN837 - Jul 12, 08:45 UTCJul 12, 09:00 UTC15m
2026-07-12 HVN1552 - Jul 12, 07:01 UTCJul 12, 07:10 UTC10m
2026-07-12 HVN1553 - Jul 12, 03:15 UTCJul 12, 03:30 UTC15m
2026-07-12 HVN240 - Jul 12, 01:35 UTCJul 12, 01:50 UTC15m
2026-07-11 HVN649 - Jul 11, 20:30 UTCJul 11, 21:10 UTC40m
2026-07-11 HVN648 - Jul 11, 18:20 UTCJul 11, 18:55 UTC35m
2026-07-11 HVN595 - Jul 11, 11:15 UTCJul 11, 11:30 UTC15m
2026-07-11 HVN594 - Jul 11, 09:25 UTCJul 11, 09:45 UTC20m
2026-07-11 HVN600 - Jul 11, 04:50 UTCJul 11, 05:01 UTC10m
2026-07-10 HVN601 - Jul 10, 15:45 UTCJul 11, 03:15 UTC11h 31m
2026-07-10 HVN506 - Jul 10, 05:50 UTCJul 10, 06:00 UTC10m
2026-07-10 HVN1591 - Jul 10, 02:00 UTCJul 10, 02:10 UTC10m
2026-07-09 HVN643 - Jul 9, 17:20 UTCJul 9, 22:10 UTC4h 50m
2026-07-09 HVN643 - Jul 9, 16:25 UTCJul 9, 16:35 UTC10m
2026-07-08 HVN1541 - Jul 8, 23:10 UTCJul 8, 23:25 UTC15m
2026-07-08 HVN680 KUL → HAN Jul 8, 15:00 UTCJul 8, 15:15 UTC15m
2026-07-08 HVN680 KUL → HAN Jul 8, 12:35 UTCJul 8, 12:45 UTC10m
2026-07-08 HVN681 - Jul 8, 08:10 UTCJul 8, 11:00 UTC2h 50m
2026-07-08 HVN1236 - Jul 8, 01:00 UTCJul 8, 06:25 UTC5h 25m
2026-07-07 HVN513 - Jul 7, 12:35 UTCJul 7, 13:00 UTC25m
2026-07-07 HVN513 - Jul 7, 09:55 UTCJul 7, 10:10 UTC15m
2026-07-07 HVN512 - Jul 7, 03:20 UTCJul 7, 03:30 UTC10m
2026-07-07 HVN158 - Jul 7, 01:35 UTCJul 7, 01:45 UTC10m
2026-07-06 HVN157 - Jul 6, 23:00 UTCJul 6, 23:20 UTC20m
2026-07-06 HVN1806 HAN → DIN Jul 6, 12:15 UTCJul 6, 12:25 UTC10m
2026-07-06 HVN174 - Jul 6, 10:40 UTCJul 6, 10:55 UTC15m
2026-07-06 HVN173 - Jul 6, 08:00 UTCJul 6, 08:20 UTC20m
2026-07-06 HVN7572 - Jul 6, 05:55 UTCJul 6, 06:10 UTC15m
2026-07-06 HVN7573 - Jul 6, 02:25 UTCJul 6, 02:35 UTC10m
2026-07-05 HVN643 - Jul 5, 16:35 UTCJul 6, 00:30 UTC7h 55m
2026-07-05 HVN180 DAD → HAN Jul 5, 10:05 UTCJul 5, 13:05 UTC3h 0m
2026-07-05 HVN170 - Jul 5, 05:30 UTCJul 5, 08:30 UTC3h 0m
2026-07-05 HVN1590 - Jul 5, 04:00 UTCJul 5, 04:15 UTC15m
2026-07-05 HVN1591 - Jul 5, 02:05 UTCJul 5, 02:20 UTC15m

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-A393 page for operator, model, and routing details .

Mode-S 8880A1 frequently asked

What is Mode-S code 8880A1?
8880A1 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A393.
Where is Mode-S 8880A1 registered?
Mode-S code 8880A1 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8880A1 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8880A1, octal 42100241, decimal 8,945,825.
What flights does 8880A1 operate?
Mode-S 8880A1 has broadcast 20 distinct callsigns, including HVN630, HVN679, HVN678, HVN640, HVN581.