sensors Mode-S transponder

8880A4

ICAO 24-bit transponder address · allocated to Vietnam

Currently assigned to VN-A396 · AIRBUS A-321

Hex
8880A4
Octal
42100244
Decimal
8,945,828
Country
VN
Tail
VN-A396
Type
A321
No current signal · last broadcast 5h ago
Flights observed
201
Distinct callsigns
20
Country
VN
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 8880A4.

Country allocation

The ICAO 24-bit address 8880A4 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 - 10 2026-07-07
HVN631 - 6 2026-07-07
HVN634 - 5 2026-07-11
HVN516 - 5 2026-07-04
HVN635 - 4 2026-07-11
HVN609 - 4 2026-07-07
HVN608 Vietnam Airlines 4 2026-07-08
HVN607 - 4 2026-06-21
HVN601 - 4 2026-06-12
HVN587 - 4 2026-07-14
HVN586 - 4 2026-07-13
HVN581 Vietnam Airlines 4 2026-05-29
HVN1670 - 4 2026-07-06
HVN660 - 3 2026-07-01
HVN650 - 3 2026-06-23
HVN643 - 3 2026-07-12
HVN640 - 3 2026-06-13
HVN619 - 3 2026-06-30
HVN618 - 3 2026-06-30
HVN606 - 3 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 HVN7033 - Jul 14, 12:50 UTCJul 14, 13:00 UTC10m
2026-07-14 HVN173 - Jul 14, 08:40 UTCJul 14, 11:35 UTC2h 55m
2026-07-14 HVN166 - Jul 14, 07:10 UTCJul 14, 07:20 UTC10m
2026-07-14 HVN165 - Jul 14, 04:30 UTCJul 14, 04:45 UTC15m
2026-07-14 HVN587 - Jul 14, 02:35 UTCJul 14, 02:45 UTC10m
2026-07-14 HVN587 - Jul 14, 00:40 UTCJul 14, 01:40 UTC1h 0m
2026-07-13 HVN586 - Jul 13, 11:50 UTCJul 13, 14:00 UTC2h 10m
2026-07-13 HVN507 - Jul 13, 09:55 UTCJul 13, 10:05 UTC10m
2026-07-13 HVN506 - Jul 13, 05:40 UTCJul 13, 05:55 UTC15m
2026-07-13 HVN1590 - Jul 13, 03:55 UTCJul 13, 04:05 UTC10m
2026-07-13 HVN1591 - Jul 13, 01:55 UTCJul 13, 02:10 UTC15m
2026-07-13 HVN642 - Jul 13, 00:25 UTCJul 13, 00:35 UTC10m
2026-07-12 HVN643 - Jul 12, 17:50 UTCJul 12, 22:50 UTC5h 0m
2026-07-12 HVN643 - Jul 12, 16:55 UTCJul 12, 17:05 UTC10m
2026-07-12 HVN7032 - Jul 12, 14:55 UTCJul 12, 15:25 UTC30m
2026-07-12 HVN7053 - Jul 12, 11:40 UTCJul 12, 11:55 UTC15m
2026-07-12 HVN175 - Jul 12, 07:05 UTCJul 12, 07:15 UTC10m
2026-07-12 HVN1236 - Jul 12, 05:30 UTCJul 12, 05:55 UTC25m
2026-07-12 HVN1237 - Jul 12, 01:05 UTCJul 12, 01:20 UTC15m
2026-07-11 HVN634 - Jul 11, 22:50 UTCJul 11, 23:00 UTC10m
2026-07-11 HVN634 - Jul 11, 19:05 UTCJul 11, 20:35 UTC1h 30m
2026-07-11 HVN635 - Jul 11, 17:25 UTCJul 11, 17:45 UTC20m
2026-07-11 HVN635 - Jul 11, 13:50 UTCJul 11, 14:05 UTC15m
2026-07-11 HVN513 - Jul 11, 09:25 UTCJul 11, 09:40 UTC15m
2026-07-11 HVN512 - Jul 11, 03:25 UTCJul 11, 03:35 UTC10m
2026-07-10 HVN157 - Jul 10, 23:15 UTCJul 11, 02:00 UTC2h 45m
2026-07-10 HVN1717 - Jul 10, 10:45 UTCJul 10, 11:00 UTC15m
2026-07-10 HVN7568 - Jul 10, 01:20 UTCJul 10, 05:25 UTC4h 5m
2026-07-09 HVN270 - Jul 9, 17:30 UTCJul 9, 17:40 UTC10m
2026-07-09 HVN1177 - Jul 9, 04:25 UTCJul 9, 04:35 UTC10m
2026-07-09 HVN1176 - Jul 9, 02:40 UTCJul 9, 03:05 UTC25m
2026-07-08 HVN608 BKK → SGN Jul 8, 15:50 UTCJul 8, 16:20 UTC30m
2026-07-07 HVN609 - Jul 7, 20:30 UTCJul 8, 14:05 UTC17h 35m
2026-07-07 HVN1187 HPH → SGN Jul 7, 13:55 UTCJul 8, 13:00 UTC23h 5m
2026-07-07 HVN1186 SGN → HPH Jul 7, 12:45 UTCJul 7, 12:55 UTC10m
2026-07-07 HVN630 - Jul 7, 07:20 UTCJul 7, 08:40 UTC1h 20m
2026-07-07 HVN631 - Jul 7, 05:30 UTCJul 7, 05:40 UTC10m
2026-07-06 HVN1671 - Jul 6, 04:35 UTCJul 6, 04:50 UTC15m
2026-07-06 HVN1670 - Jul 6, 03:15 UTCJul 6, 03:30 UTC15m
2026-07-05 HVN595 - Jul 5, 10:50 UTCJul 5, 11:05 UTC15m
2026-07-05 HVN594 - Jul 5, 09:00 UTCJul 5, 09:20 UTC20m
2026-07-04 HVN516 - Jul 4, 20:40 UTCJul 5, 03:30 UTC6h 50m
2026-07-04 HVN595 - Jul 4, 11:20 UTCJul 4, 11:35 UTC15m
2026-07-04 HVN594 - Jul 4, 09:25 UTCJul 4, 09:30 UTC5m
2026-07-03 HVN243 - Jul 3, 23:15 UTCJul 3, 23:35 UTC20m
2026-07-03 HVN252 - Jul 3, 12:05 UTCJul 3, 12:25 UTC20m
2026-07-02 HVN252 - Jul 2, 16:20 UTCJul 3, 12:25 UTC20h 5m
2026-07-02 HVN1181 - Jul 2, 01:45 UTCJul 2, 02:05 UTC20m
2026-07-02 HVN1180 - Jul 2, 00:35 UTCJul 2, 00:55 UTC20m
2026-07-01 HVN267 HAN → SGN Jul 1, 15:30 UTCJul 1, 15:50 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-A396 page for operator, model, and routing details .

Mode-S 8880A4 frequently asked

What is Mode-S code 8880A4?
8880A4 is an ICAO 24-bit transponder address. Allocated to Vietnam. Assigned to VN-A396.
Where is Mode-S 8880A4 registered?
Mode-S code 8880A4 is allocated to Vietnam (VN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8880A4 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8880A4, octal 42100244, decimal 8,945,828.
What flights does 8880A4 operate?
Mode-S 8880A4 has broadcast 20 distinct callsigns, including HVN630, HVN631, HVN634, HVN516, HVN635.