sensors Mode-S transponder
88812B
ICAO 24-bit transponder address · allocated to Vietnam
Currently assigned to VN-A871 · BOEING 787-9 Dreamliner
- Hex
- 88812B
- Octal
- 42100453
- Decimal
- 8,945,963
- Country
- VN
- Tail
- VN-A871
- Type
- B789
- Flights observed
- 75
- Distinct callsigns
- 20
- Country
- VN
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address 88812B 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 |
|---|---|---|---|
| HVN37 | Vietnam Airlines | 11 | 2026-05-19 |
| HVN39 | Vietnam Airlines | 8 | 2026-06-01 |
| HVN30 | Vietnam Airlines | 7 | 2026-05-30 |
| HVN781 | Vietnam Airlines | 6 | 2026-04-27 |
| HVN55 | Vietnam Airlines | 6 | 2026-05-24 |
| HVN36 | Vietnam Airlines | 6 | 2026-05-20 |
| HVN56 | Vietnam Airlines | 5 | 2026-05-24 |
| HVN35 | Vietnam Airlines | 5 | 2026-05-17 |
| HVN34 | Vietnam Airlines | 4 | 2026-05-18 |
| HVN780 | Vietnam Airlines | 3 | 2026-04-28 |
| HVN31 | Vietnam Airlines | 3 | 2026-05-29 |
| HVN38 | Vietnam Airlines | 2 | 2026-06-02 |
| HVN791 | Vietnam Airlines | 1 | 2026-05-02 |
| HVN790 | Vietnam Airlines | 1 | 2026-05-02 |
| HVN385 | Vietnam Airlines | 1 | 2026-05-21 |
| HVN384 | Vietnam Airlines | 1 | 2026-04-21 |
| HVN251 | Vietnam Airlines | 1 | 2026-05-29 |
| HVN248 | Vietnam Airlines | 1 | 2026-06-01 |
| HVN233 | Vietnam Airlines | 1 | 2026-04-25 |
| HVN216 | Vietnam Airlines | 1 | 2026-05-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | HVN38 | CPH → SGN | Jun 2, 09:55 UTC | Jun 2, 18:15 UTC | 8h 20m |
| 2026-06-01 | HVN39 | SGN → CPH | Jun 1, 12:25 UTC | Jun 2, 04:50 UTC | 16h 25m |
| 2026-06-01 | HVN248 | SGN → HAN | Jun 1, 03:20 UTC | Jun 1, 08:00 UTC | 4h 40m |
| 2026-05-30 | HVN30 | FRA → SGN | May 30, 19:15 UTC | May 31, 13:00 UTC | 17h 45m |
| 2026-05-30 | HVN30 | FRA → SGN | May 30, 14:50 UTC | May 31, 13:00 UTC | 22h 10m |
| 2026-05-30 | HVN30 | FRA → SGN | May 30, 13:15 UTC | May 31, 12:45 UTC | 23h 30m |
| 2026-05-29 | HVN31 | SGN → FRA | May 29, 12:15 UTC | May 30, 04:40 UTC | 16h 25m |
| 2026-05-29 | HVN216 | SGN → HAN | May 29, 10:40 UTC | May 29, 11:00 UTC | 20m |
| 2026-05-29 | HVN251 | HAN → SGN | May 29, 06:00 UTC | May 29, 06:10 UTC | 10m |
| 2026-05-28 | HVN30 | FRA → SGN | May 28, 11:50 UTC | May 28, 22:05 UTC | 10h 15m |
| 2026-05-27 | HVN31 | SGN → FRA | May 27, 12:15 UTC | May 28, 04:50 UTC | 16h 35m |
| 2026-05-24 | HVN56 | LHR → HAN | May 24, 19:30 UTC | May 25, 05:50 UTC | 10h 20m |
| 2026-05-24 | HVN55 | HAN → LHR | May 24, 13:00 UTC | May 24, 17:15 UTC | 4h 15m |
| 2026-05-23 | HVN55 | HAN → LHR | May 23, 21:10 UTC | May 24, 17:15 UTC | 20h 5m |
| 2026-05-23 | HVN55 | HAN → LHR | May 23, 18:50 UTC | May 24, 17:15 UTC | 22h 25m |
| 2026-05-23 | HVN30 | FRA → SGN | May 23, 18:15 UTC | May 24, 16:45 UTC | 22h 30m |
| 2026-05-23 | HVN30 | FRA → SGN | May 23, 15:15 UTC | May 24, 14:45 UTC | 23h 30m |
| 2026-05-23 | HVN30 | FRA → SGN | May 23, 12:10 UTC | May 23, 22:30 UTC | 10h 21m |
| 2026-05-22 | HVN31 | SGN → FRA | May 22, 16:50 UTC | May 23, 04:20 UTC | 11h 29m |
| 2026-05-21 | HVN385 | HND → HAN | May 21, 07:50 UTC | May 21, 09:20 UTC | 1h 30m |
| 2026-05-20 | HVN36 | FRA → HAN | May 20, 12:25 UTC | May 21, 05:35 UTC | 17h 10m |
| 2026-05-19 | HVN37 | HAN → FRA | May 19, 17:25 UTC | May 20, 04:00 UTC | 10h 35m |
| 2026-05-18 | HVN37 | HAN → FRA | May 18, 21:00 UTC | May 19, 20:45 UTC | 23h 45m |
| 2026-05-18 | HVN34 | MUC → HAN | May 18, 18:50 UTC | May 19, 18:45 UTC | 23h 55m |
| 2026-05-18 | HVN34 | MUC → HAN | May 18, 11:50 UTC | May 18, 21:10 UTC | 9h 19m |
| 2026-05-17 | HVN35 | HAN → MUC | May 17, 08:50 UTC | May 18, 04:15 UTC | 19h 25m |
| 2026-05-17 | HVN35 | HAN → MUC | May 17, 07:55 UTC | May 18, 04:15 UTC | 20h 20m |
| 2026-05-16 | HVN34 | MUC → HAN | May 16, 11:51 UTC | May 17, 05:55 UTC | 18h 5m |
| 2026-05-15 | HVN35 | HAN → MUC | May 15, 17:45 UTC | May 16, 04:00 UTC | 10h 15m |
| 2026-05-13 | HVN36 | FRA → HAN | May 13, 12:10 UTC | May 13, 21:30 UTC | 9h 20m |
| 2026-05-12 | HVN37 | HAN → FRA | May 12, 16:50 UTC | May 13, 03:50 UTC | 11h 0m |
| 2026-05-12 | HVN37 | HAN → FRA | May 12, 02:50 UTC | May 13, 02:45 UTC | 23h 55m |
| 2026-05-11 | HVN37 | HAN → FRA | May 11, 20:50 UTC | May 12, 20:35 UTC | 23h 45m |
| 2026-05-11 | HVN56 | LHR → HAN | May 11, 18:50 UTC | May 12, 18:45 UTC | 23h 55m |
| 2026-05-11 | HVN56 | LHR → HAN | May 11, 18:25 UTC | May 12, 04:30 UTC | 10h 5m |
| 2026-05-11 | HVN55 | HAN → LHR | May 11, 11:15 UTC | May 11, 15:45 UTC | 4h 30m |
| 2026-05-09 | HVN36 | FRA → HAN | May 9, 12:20 UTC | May 9, 21:50 UTC | 9h 30m |
| 2026-05-08 | HVN37 | HAN → FRA | May 8, 08:49 UTC | May 9, 04:05 UTC | 19h 15m |
| 2026-05-08 | HVN37 | HAN → FRA | May 8, 07:44 UTC | May 9, 04:05 UTC | 20h 20m |
| 2026-05-07 | HVN36 | FRA → HAN | May 7, 12:30 UTC | May 8, 05:44 UTC | 17h 14m |
| 2026-05-06 | HVN37 | HAN → FRA | May 6, 17:05 UTC | May 7, 04:00 UTC | 10h 54m |
| 2026-05-04 | HVN34 | MUC → HAN | May 4, 11:50 UTC | May 4, 21:00 UTC | 9h 11m |
| 2026-05-03 | HVN35 | HAN → MUC | May 3, 19:34 UTC | May 4, 05:55 UTC | 10h 20m |
| 2026-05-02 | HVN35 | HAN → MUC | May 2, 21:15 UTC | May 3, 20:45 UTC | 23h 29m |
| 2026-05-02 | HVN790 | PER → SGN | May 2, 16:45 UTC | May 2, 21:35 UTC | 4h 50m |
| 2026-05-02 | HVN791 | SGN → PER | May 2, 11:25 UTC | May 2, 14:55 UTC | 3h 30m |
| 2026-04-29 | HVN56 | LHR → HAN | Apr 29, 18:15 UTC | Apr 30, 04:20 UTC | 10h 4m |
| 2026-04-29 | HVN55 | HAN → LHR | Apr 29, 12:30 UTC | Apr 29, 15:55 UTC | 3h 25m |
| 2026-04-28 | HVN780 | MEL → SGN | Apr 28, 00:40 UTC | Apr 28, 07:25 UTC | 6h 45m |
| 2026-04-27 | HVN781 | SGN → MEL | Apr 27, 04:15 UTC | Apr 27, 22:35 UTC | 18h 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-A871 page for operator, model, and routing details .