sensors Mode-S transponder
88812C
ICAO 24-bit transponder address · allocated to Vietnam
Currently assigned to VN-A398 · AIRBUS A-321
- Hex
- 88812C
- Octal
- 42100454
- Decimal
- 8,945,964
- Country
- VN
- Tail
- VN-A398
- Type
- A321
- Flights observed
- 99
- Distinct callsigns
- 20
- Country
- VN
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 88812C 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 |
|---|---|---|---|
| HVN402 | Vietnam Airlines | 21 | 2026-05-22 |
| HVN403 | Vietnam Airlines | 13 | 2026-05-22 |
| HVN318 | Vietnam Airlines | 8 | 2026-05-30 |
| HVN982 | Vietnam Airlines | 6 | 2026-05-17 |
| HVN319 | Vietnam Airlines | 6 | 2026-05-31 |
| HVN983 | Vietnam Airlines | 5 | 2026-05-17 |
| HVN348 | Vietnam Airlines | 5 | 2026-05-25 |
| HVN343 | Vietnam Airlines | 5 | 2026-05-23 |
| HVN342 | Vietnam Airlines | 4 | 2026-05-22 |
| HVN349 | Vietnam Airlines | 3 | 2026-05-26 |
| HVN681 | Vietnam Airlines | 2 | 2026-04-30 |
| HVN619 | Vietnam Airlines | 2 | 2026-05-17 |
| HVN618 | Vietnam Airlines | 2 | 2026-05-18 |
| HVN680 | Vietnam Airlines | 1 | 2026-04-30 |
| HVN595 | Vietnam Airlines | 1 | 2026-05-06 |
| HVN594 | Vietnam Airlines | 1 | 2026-05-06 |
| HVN593 | Vietnam Airlines | 1 | 2026-05-01 |
| HVN592 | Vietnam Airlines | 1 | 2026-05-01 |
| HVN585 | Vietnam Airlines | 1 | 2026-04-30 |
| HVN584 | Vietnam Airlines | 1 | 2026-04-30 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-31 | HVN319 | NRT → DAD | May 31, 00:30 UTC | May 31, 01:11 UTC | 41m |
| 2026-05-30 | HVN318 | DAD → NRT | May 30, 18:35 UTC | May 30, 22:00 UTC | 3h 25m |
| 2026-05-29 | HVN319 | NRT → DAD | May 29, 00:15 UTC | May 29, 04:10 UTC | 3h 55m |
| 2026-05-28 | HVN318 | DAD → NRT | May 28, 03:10 UTC | May 28, 22:00 UTC | 18h 50m |
| 2026-05-28 | HVN318 | DAD → NRT | May 28, 00:10 UTC | May 28, 22:00 UTC | 21h 50m |
| 2026-05-27 | HVN318 | DAD → NRT | May 27, 04:14 UTC | May 27, 22:20 UTC | 18h 5m |
| 2026-05-27 | HVN318 | DAD → NRT | May 27, 01:14 UTC | May 27, 22:20 UTC | 21h 5m |
| 2026-05-26 | HVN349 | NGO → HAN | May 26, 00:35 UTC | May 26, 22:59 UTC | 22h 25m |
| 2026-05-25 | HVN348 | HAN → NGO | May 25, 03:55 UTC | May 25, 22:05 UTC | 18h 9m |
| 2026-05-24 | HVN348 | HAN → NGO | May 24, 03:05 UTC | May 24, 21:30 UTC | 18h 25m |
| 2026-05-24 | HVN351 | FUK → SGN | May 24, 01:15 UTC | May 24, 01:25 UTC | 10m |
| 2026-05-23 | HVN350 | SGN → FUK | May 23, 22:00 UTC | May 23, 22:10 UTC | 10m |
| 2026-05-23 | HVN343 | NGO → SGN | May 23, 02:45 UTC | May 23, 20:25 UTC | 17h 40m |
| 2026-05-23 | HVN343 | NGO → SGN | May 23, 00:20 UTC | May 23, 20:25 UTC | 20h 5m |
| 2026-05-22 | HVN342 | SGN → NGO | May 22, 21:55 UTC | May 22, 22:15 UTC | 20m |
| 2026-05-22 | HVN403 | ICN → SGN | May 22, 09:15 UTC | May 22, 19:45 UTC | 10h 30m |
| 2026-05-22 | HVN402 | SGN → ICN | May 22, 04:10 UTC | May 22, 07:05 UTC | 2h 55m |
| 2026-05-21 | HVN349 | NGO → HAN | May 21, 00:50 UTC | May 21, 01:50 UTC | 1h 0m |
| 2026-05-20 | HVN348 | HAN → NGO | May 20, 20:35 UTC | May 20, 21:25 UTC | 50m |
| 2026-05-20 | HVN348 | HAN → NGO | May 20, 01:05 UTC | May 20, 21:25 UTC | 20h 21m |
| 2026-05-20 | HVN349 | NGO → HAN | May 20, 00:40 UTC | May 20, 21:25 UTC | 20h 46m |
| 2026-05-19 | HVN348 | HAN → NGO | May 19, 20:50 UTC | May 19, 21:30 UTC | 40m |
| 2026-05-18 | HVN618 | BKK → HAN | May 18, 12:45 UTC | May 18, 13:15 UTC | 30m |
| 2026-05-17 | HVN619 | HAN → BKK | May 17, 20:20 UTC | May 18, 11:10 UTC | 14h 50m |
| 2026-05-17 | HVN982 | BLR → HAN | May 17, 18:20 UTC | May 17, 18:35 UTC | 15m |
| 2026-05-17 | HVN983 | HAN → BLR | May 17, 16:35 UTC | May 17, 16:55 UTC | 20m |
| 2026-05-17 | HVN983 | HAN → BLR | May 17, 13:25 UTC | May 17, 14:45 UTC | 1h 20m |
| 2026-05-16 | HVN319 | NRT → DAD | May 16, 02:05 UTC | May 16, 03:50 UTC | 1h 45m |
| 2026-05-16 | HVN319 | NRT → DAD | May 16, 00:10 UTC | May 16, 00:50 UTC | 40m |
| 2026-05-15 | HVN318 | DAD → NRT | May 15, 18:45 UTC | May 15, 22:25 UTC | 3h 40m |
| 2026-05-13 | HVN343 | NGO → SGN | May 13, 00:15 UTC | May 13, 03:30 UTC | 3h 15m |
| 2026-05-12 | HVN342 | SGN → NGO | May 12, 21:50 UTC | May 12, 22:01 UTC | 10m |
| 2026-05-12 | HVN403 | ICN → SGN | May 12, 09:35 UTC | May 12, 20:50 UTC | 11h 15m |
| 2026-05-12 | HVN402 | SGN → ICN | May 12, 04:15 UTC | May 12, 07:20 UTC | 3h 5m |
| 2026-05-11 | HVN402 | SGN → ICN | May 11, 11:05 UTC | May 12, 07:20 UTC | 20h 16m |
| 2026-05-11 | HVN402 | SGN → ICN | May 11, 09:05 UTC | May 12, 07:20 UTC | 22h 16m |
| 2026-05-11 | HVN402 | SGN → ICN | May 11, 04:20 UTC | May 11, 07:05 UTC | 2h 45m |
| 2026-05-10 | HVN402 | SGN → ICN | May 10, 11:05 UTC | May 11, 07:05 UTC | 20h 0m |
| 2026-05-10 | HVN403 | ICN → SGN | May 10, 09:05 UTC | May 11, 07:05 UTC | 22h 0m |
| 2026-05-10 | HVN402 | SGN → ICN | May 10, 04:45 UTC | May 10, 07:25 UTC | 2h 40m |
| 2026-05-09 | HVN402 | SGN → ICN | May 9, 09:45 UTC | May 10, 07:25 UTC | 21h 40m |
| 2026-05-06 | HVN595 | HKG → SGN | May 6, 11:10 UTC | May 6, 11:20 UTC | 10m |
| 2026-05-06 | HVN594 | SGN → HKG | May 6, 08:50 UTC | May 6, 09:00 UTC | 10m |
| 2026-05-05 | HVN403 | ICN → SGN | May 5, 10:40 UTC | May 6, 03:25 UTC | 16h 45m |
| 2026-05-05 | HVN403 | ICN → SGN | May 5, 09:05 UTC | May 5, 09:35 UTC | 30m |
| 2026-05-05 | HVN402 | SGN → ICN | May 5, 04:40 UTC | May 5, 07:05 UTC | 2h 25m |
| 2026-05-03 | HVN982 | BLR → HAN | May 3, 19:34 UTC | May 3, 21:39 UTC | 2h 5m |
| 2026-05-03 | HVN982 | BLR → HAN | May 3, 18:30 UTC | May 3, 18:45 UTC | 15m |
| 2026-05-03 | HVN983 | HAN → BLR | May 3, 16:25 UTC | May 3, 16:45 UTC | 20m |
| 2026-05-03 | HVN983 | HAN → BLR | May 3, 09:00 UTC | May 3, 13:20 UTC | 4h 20m |
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-A398 page for operator, model, and routing details .