sensors Mode-S transponder
888099
ICAO 24-bit transponder address · allocated to Vietnam
Currently assigned to VN-A335 · AIRBUS A-321
- Hex
- 888099
- Octal
- 42100231
- Decimal
- 8,945,817
- Country
- VN
- Tail
- VN-A335
- Type
- A321
- Flights observed
- 103
- Distinct callsigns
- 20
- Country
- VN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 888099 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 | 15 | 2026-05-26 |
| HVN403 | Vietnam Airlines | 10 | 2026-05-26 |
| HVN983 | Vietnam Airlines | 8 | 2026-05-31 |
| HVN982 | Vietnam Airlines | 8 | 2026-05-31 |
| HVN985 | Vietnam Airlines | 6 | 2026-05-13 |
| HVN343 | Vietnam Airlines | 6 | 2026-05-28 |
| HVN319 | Vietnam Airlines | 6 | 2026-05-03 |
| HVN318 | Vietnam Airlines | 6 | 2026-05-02 |
| HVN350 | Vietnam Airlines | 4 | 2026-04-21 |
| HVN351 | Vietnam Airlines | 3 | 2026-04-22 |
| HVN342 | Vietnam Airlines | 3 | 2026-05-27 |
| HVN337 | Vietnam Airlines | 3 | 2026-04-26 |
| HVN630 | Vietnam Airlines | 2 | 2026-04-23 |
| HVN580 | Vietnam Airlines | 2 | 2026-04-23 |
| HVN921 | Vietnam Airlines | 1 | 2026-04-25 |
| HVN836 | Vietnam Airlines | 1 | 2026-06-01 |
| HVN679 | Vietnam Airlines | 1 | 2026-05-05 |
| HVN678 | Vietnam Airlines | 1 | 2026-05-05 |
| HVN654 | Vietnam Airlines | 1 | 2026-05-28 |
| HVN631 | Vietnam Airlines | 1 | 2026-04-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-01 | HVN267 | HAN → SGN | Jun 1, 15:10 UTC | Jun 1, 15:25 UTC | 15m |
| 2026-06-01 | HVN836 | SAI → HAN | Jun 1, 08:40 UTC | Jun 1, 12:20 UTC | 3h 40m |
| 2026-06-01 | HVN168 | DAD → HAN | Jun 1, 06:55 UTC | Jun 1, 07:10 UTC | 15m |
| 2026-06-01 | HVN167 | HAN → DAD | Jun 1, 04:10 UTC | Jun 1, 04:25 UTC | 15m |
| 2026-06-01 | HVN159 | HAN → DAD | Jun 1, 00:05 UTC | Jun 1, 03:00 UTC | 2h 55m |
| 2026-05-31 | HVN982 | BLR → HAN | May 31, 19:25 UTC | May 31, 21:45 UTC | 2h 20m |
| 2026-05-31 | HVN982 | BLR → HAN | May 31, 18:20 UTC | May 31, 18:35 UTC | 15m |
| 2026-05-31 | HVN983 | HAN → BLR | May 31, 12:15 UTC | May 31, 16:50 UTC | 4h 35m |
| 2026-05-30 | HVN356 | HAN → FUK | May 30, 18:45 UTC | May 31, 10:00 UTC | 15h 15m |
| 2026-05-30 | HVN238 | SGN → HAN | May 30, 16:30 UTC | May 30, 16:50 UTC | 20m |
| 2026-05-28 | HVN654 | SIN → SGN | May 28, 10:50 UTC | May 28, 11:10 UTC | 20m |
| 2026-05-28 | HVN343 | NGO → SGN | May 28, 02:30 UTC | May 28, 09:10 UTC | 6h 40m |
| 2026-05-27 | HVN342 | SGN → NGO | May 27, 22:00 UTC | May 27, 22:15 UTC | 15m |
| 2026-05-27 | HVN343 | NGO → SGN | May 27, 02:29 UTC | May 27, 19:45 UTC | 17h 16m |
| 2026-05-27 | HVN343 | NGO → SGN | May 27, 00:14 UTC | May 27, 00:25 UTC | 10m |
| 2026-05-26 | HVN403 | ICN → SGN | May 26, 08:59 UTC | May 26, 22:29 UTC | 13h 30m |
| 2026-05-26 | HVN402 | SGN → ICN | May 26, 04:24 UTC | May 26, 07:19 UTC | 2h 55m |
| 2026-05-25 | HVN402 | SGN → ICN | May 25, 10:35 UTC | May 26, 07:19 UTC | 20h 45m |
| 2026-05-25 | HVN403 | ICN → SGN | May 25, 09:00 UTC | May 26, 07:19 UTC | 22h 19m |
| 2026-05-25 | HVN402 | SGN → ICN | May 25, 04:30 UTC | May 25, 07:25 UTC | 2h 55m |
| 2026-05-24 | HVN402 | SGN → ICN | May 24, 10:40 UTC | May 25, 07:25 UTC | 20h 45m |
| 2026-05-24 | HVN403 | ICN → SGN | May 24, 09:05 UTC | May 25, 07:25 UTC | 22h 20m |
| 2026-05-24 | HVN402 | SGN → ICN | May 24, 04:30 UTC | May 24, 07:15 UTC | 2h 45m |
| 2026-05-16 | HVN587 | KHH → HAN | May 16, 00:50 UTC | May 16, 01:50 UTC | 1h 0m |
| 2026-05-14 | HVN982 | BLR → HAN | May 14, 18:20 UTC | May 15, 13:30 UTC | 19h 10m |
| 2026-05-14 | HVN983 | HAN → BLR | May 14, 09:10 UTC | May 14, 16:50 UTC | 7h 40m |
| 2026-05-13 | HVN985 | HAN → HYD | May 13, 13:15 UTC | May 14, 07:50 UTC | 18h 35m |
| 2026-05-12 | HVN985 | HAN → HYD | May 12, 20:20 UTC | May 13, 20:15 UTC | 23h 55m |
| 2026-05-12 | HVN985 | HAN → HYD | May 12, 19:15 UTC | May 13, 15:55 UTC | 20h 40m |
| 2026-05-12 | HVN982 | BLR → HAN | May 12, 18:10 UTC | May 12, 18:30 UTC | 20m |
| 2026-05-12 | HVN983 | HAN → BLR | May 12, 12:55 UTC | May 12, 16:30 UTC | 3h 35m |
| 2026-05-10 | HVN982 | BLR → HAN | May 10, 18:15 UTC | May 10, 21:19 UTC | 3h 5m |
| 2026-05-10 | HVN983 | HAN → BLR | May 10, 08:40 UTC | May 10, 16:25 UTC | 7h 45m |
| 2026-05-09 | HVN982 | BLR → HAN | May 9, 19:10 UTC | May 9, 21:19 UTC | 2h 10m |
| 2026-05-09 | HVN982 | BLR → HAN | May 9, 18:10 UTC | May 9, 18:30 UTC | 20m |
| 2026-05-09 | HVN983 | HAN → BLR | May 9, 09:05 UTC | May 9, 16:30 UTC | 7h 25m |
| 2026-05-08 | HVN985 | HAN → HYD | May 8, 13:00 UTC | May 9, 07:35 UTC | 18h 35m |
| 2026-05-07 | HVN985 | HAN → HYD | May 7, 20:20 UTC | May 8, 20:15 UTC | 23h 55m |
| 2026-05-07 | HVN985 | HAN → HYD | May 7, 19:15 UTC | May 8, 15:40 UTC | 20h 25m |
| 2026-05-07 | HVN982 | BLR → HAN | May 7, 18:15 UTC | May 7, 18:35 UTC | 20m |
| 2026-05-07 | HVN983 | HAN → BLR | May 7, 01:35 UTC | May 7, 16:35 UTC | 15h 0m |
| 2026-05-06 | HVN983 | HAN → BLR | May 6, 20:20 UTC | May 7, 16:35 UTC | 20h 15m |
| 2026-05-06 | HVN983 | HAN → BLR | May 6, 19:00 UTC | May 7, 16:35 UTC | 21h 35m |
| 2026-05-06 | HVN403 | ICN → SGN | May 6, 09:05 UTC | May 7, 03:25 UTC | 18h 19m |
| 2026-05-06 | HVN402 | SGN → ICN | May 6, 04:10 UTC | May 6, 07:25 UTC | 3h 15m |
| 2026-05-05 | HVN678 | KUL → SGN | May 5, 12:00 UTC | May 5, 12:15 UTC | 15m |
| 2026-05-05 | HVN679 | SGN → KUL | May 5, 09:45 UTC | May 5, 10:15 UTC | 30m |
| 2026-05-04 | HVN403 | ICN → SGN | May 4, 10:50 UTC | May 5, 10:15 UTC | 23h 26m |
| 2026-05-04 | HVN403 | ICN → SGN | May 4, 09:05 UTC | May 4, 12:05 UTC | 3h 0m |
| 2026-05-04 | HVN402 | SGN → ICN | May 4, 04:34 UTC | May 4, 06:55 UTC | 2h 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-A335 page for operator, model, and routing details .