sensors Mode-S transponder
8881F6
ICAO 24-bit transponder address · allocated to Vietnam
Currently assigned to VN-A515 · AIRBUS A-320neo
- Hex
- 8881F6
- Octal
- 42100766
- Decimal
- 8,946,166
- Country
- VN
- Tail
- VN-A515
- Type
- A20N
- Flights observed
- 26
- Distinct callsigns
- 13
- Country
- VN
- Last broadcast
- Jun 19, 11:30 UTC
Last known position
Country allocation
The ICAO 24-bit address 8881F6 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| HVN1641 | Vietnam Airlines | 4 | 2026-06-18 |
| HVN177 | Vietnam Airlines | 3 | 2026-06-18 |
| HVN1623 | Vietnam Airlines | 3 | 2026-06-18 |
| HVN7627 | Vietnam Airlines | 2 | 2026-06-19 |
| HVN7561 | Vietnam Airlines | 2 | 2026-06-19 |
| HVN7172 | Vietnam Airlines | 2 | 2026-06-14 |
| HVN187 | Vietnam Airlines | 2 | 2026-06-19 |
| HVN1549 | Vietnam Airlines | 2 | 2026-06-17 |
| HVN1548 | Vietnam Airlines | 2 | 2026-06-15 |
| HVN7034 | - | 1 | 2026-06-15 |
| HVN247 | Vietnam Airlines | 1 | 2026-06-04 |
| HVN178 | Vietnam Airlines | 1 | 2026-06-15 |
| HVN1622 | Vietnam Airlines | 1 | 2026-06-15 |
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-19 | HVN187 | HAN → DAD | Jun 19, 10:59 UTC | Jun 19, 11:30 UTC | 30m |
| 2026-06-19 | HVN7627 | HAN → UIH | Jun 19, 05:14 UTC | Jun 19, 08:54 UTC | 3h 40m |
| 2026-06-19 | HVN7561 | HAN → CXR | Jun 19, 00:05 UTC | Jun 19, 04:04 UTC | 3h 59m |
| 2026-06-18 | HVN177 | HAN → DAD | Jun 18, 10:30 UTC | Jun 18, 13:35 UTC | 3h 5m |
| 2026-06-18 | HVN1623 | HAN → UIH | Jun 18, 06:00 UTC | Jun 18, 09:15 UTC | 3h 15m |
| 2026-06-18 | HVN1641 | HAN → VCL | Jun 18, 01:45 UTC | Jun 18, 04:40 UTC | 2h 55m |
| 2026-06-17 | HVN1549 | HAN → HUI | Jun 17, 14:10 UTC | Jun 17, 16:30 UTC | 2h 20m |
| 2026-06-17 | HVN177 | HAN → DAD | Jun 17, 09:50 UTC | Jun 17, 12:50 UTC | 3h 0m |
| 2026-06-17 | HVN1623 | HAN → UIH | Jun 17, 04:55 UTC | Jun 17, 08:20 UTC | 3h 25m |
| 2026-06-17 | HVN1641 | HAN → VCL | Jun 17, 00:55 UTC | Jun 17, 03:45 UTC | 2h 50m |
| 2026-06-15 | HVN7034 | - | Jun 15, 23:35 UTC | Jun 16, 10:55 UTC | 11h 20m |
| 2026-06-15 | HVN1548 | HUI → HAN | Jun 15, 13:50 UTC | Jun 15, 16:40 UTC | 2h 50m |
| 2026-06-15 | HVN178 | DAD → HAN | Jun 15, 09:40 UTC | Jun 15, 12:39 UTC | 3h 0m |
| 2026-06-15 | HVN1622 | UIH → HAN | Jun 15, 05:04 UTC | Jun 15, 08:25 UTC | 3h 20m |
| 2026-06-15 | HVN1641 | HAN → VCL | Jun 15, 00:40 UTC | Jun 15, 03:45 UTC | 3h 5m |
| 2026-06-14 | HVN7172 | SGN → HPH | Jun 14, 15:05 UTC | Jun 14, 15:30 UTC | 25m |
| 2026-06-04 | HVN247 | HAN → SGN | Jun 4, 03:20 UTC | Jun 4, 03:55 UTC | 35m |
| 2026-06-03 | HVN1548 | HUI → HAN | Jun 3, 17:25 UTC | Jun 3, 17:45 UTC | 20m |
| 2026-06-03 | HVN1549 | HAN → HUI | Jun 3, 15:20 UTC | Jun 3, 15:50 UTC | 30m |
| 2026-06-03 | HVN177 | HAN → DAD | Jun 3, 09:40 UTC | Jun 3, 14:10 UTC | 4h 30m |
| 2026-06-03 | HVN1623 | HAN → UIH | Jun 3, 04:45 UTC | Jun 3, 07:55 UTC | 3h 10m |
| 2026-06-03 | HVN1641 | HAN → VCL | Jun 3, 00:40 UTC | Jun 3, 03:30 UTC | 2h 50m |
| 2026-06-02 | HVN187 | HAN → DAD | Jun 2, 10:50 UTC | Jun 2, 13:40 UTC | 2h 50m |
| 2026-06-02 | HVN7627 | HAN → UIH | Jun 2, 05:25 UTC | Jun 2, 08:50 UTC | 3h 25m |
| 2026-06-02 | HVN7561 | HAN → CXR | Jun 2, 00:00 UTC | Jun 2, 04:00 UTC | 4h 0m |
| 2026-06-01 | HVN7172 | SGN → HPH | Jun 1, 15:15 UTC | Jun 1, 15:30 UTC | 15m |
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-A515 page for operator, model, and routing details .