sensors Mode-S transponder
888184
ICAO 24-bit transponder address · allocated to Vietnam
Currently assigned to VN-A506 · AIRBUS A-321neo
- Hex
- 888184
- Octal
- 42100604
- Decimal
- 8,946,052
- Country
- VN
- Tail
- VN-A506
- Type
- A21N
- Flights observed
- 75
- Distinct callsigns
- 20
- Country
- VN
- Last broadcast
- 11h ago
Last known position
Country allocation
The ICAO 24-bit address 888184 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 |
|---|---|---|---|
| HVN440 | Vietnam Airlines | 10 | 2026-05-24 |
| HVN431 | Vietnam Airlines | 7 | 2026-04-30 |
| HVN441 | Vietnam Airlines | 6 | 2026-05-24 |
| HVN434 | Vietnam Airlines | 5 | 2026-05-29 |
| HVN430 | Vietnam Airlines | 5 | 2026-04-29 |
| HVN648 | Vietnam Airlines | 4 | 2026-05-27 |
| HVN578 | Vietnam Airlines | 3 | 2026-05-16 |
| HVN7356 | Vietnam Airlines | 2 | 2026-04-23 |
| HVN663 | Vietnam Airlines | 2 | 2026-05-12 |
| HVN662 | Vietnam Airlines | 2 | 2026-05-12 |
| HVN649 | Vietnam Airlines | 2 | 2026-04-14 |
| HVN611 | Vietnam Airlines | 2 | 2026-05-18 |
| HVN579 | Vietnam Airlines | 2 | 2026-05-16 |
| HVN435 | Vietnam Airlines | 2 | 2026-05-30 |
| HVN357 | Vietnam Airlines | 2 | 2026-05-19 |
| HVN657 | Vietnam Airlines | 1 | 2026-04-13 |
| HVN656 | - | 1 | 2026-04-13 |
| HVN626 | Vietnam Airlines | 1 | 2026-04-30 |
| HVN619 | Vietnam Airlines | 1 | 2026-05-15 |
| HVN618 | Vietnam Airlines | 1 | 2026-05-15 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | HVN435 | PUS → CXR | May 30, 01:05 UTC | May 30, 02:10 UTC | 1h 5m |
| 2026-05-29 | HVN434 | CXR → PUS | May 29, 13:55 UTC | May 29, 19:45 UTC | 5h 50m |
| 2026-05-28 | HVN434 | CXR → PUS | May 28, 18:05 UTC | May 29, 12:15 UTC | 18h 10m |
| 2026-05-27 | HVN434 | CXR → PUS | May 27, 20:20 UTC | May 28, 19:00 UTC | 22h 40m |
| 2026-05-27 | HVN648 | SGN → MNL | May 27, 03:14 UTC | May 27, 18:55 UTC | 15h 40m |
| 2026-05-26 | HVN350 | SGN → FUK | May 26, 19:40 UTC | May 26, 20:20 UTC | 40m |
| 2026-05-24 | HVN441 | ICN → CXR | May 24, 23:30 UTC | May 24, 23:46 UTC | 16m |
| 2026-05-24 | HVN440 | CXR → ICN | May 24, 01:05 UTC | May 24, 19:25 UTC | 18h 20m |
| 2026-05-23 | HVN440 | CXR → ICN | May 23, 23:40 UTC | May 24, 19:25 UTC | 19h 45m |
| 2026-05-23 | HVN440 | CXR → ICN | May 23, 19:20 UTC | May 24, 19:00 UTC | 23h 40m |
| 2026-05-23 | HVN435 | PUS → CXR | May 23, 01:05 UTC | May 24, 01:00 UTC | 23h 55m |
| 2026-05-22 | HVN434 | CXR → PUS | May 22, 18:30 UTC | May 23, 02:15 UTC | 7h 45m |
| 2026-05-21 | HVN434 | CXR → PUS | May 21, 23:45 UTC | May 22, 19:50 UTC | 20h 5m |
| 2026-05-21 | HVN441 | ICN → CXR | May 21, 22:00 UTC | May 22, 19:50 UTC | 21h 50m |
| 2026-05-21 | HVN440 | CXR → ICN | May 21, 16:20 UTC | May 21, 19:10 UTC | 2h 50m |
| 2026-05-19 | HVN357 | FUK → HAN | May 19, 01:15 UTC | May 19, 01:25 UTC | 10m |
| 2026-05-18 | HVN610 | BKK → HAN | May 18, 05:05 UTC | May 18, 05:30 UTC | 25m |
| 2026-05-18 | HVN611 | HAN → BKK | May 18, 03:15 UTC | May 18, 03:45 UTC | 30m |
| 2026-05-17 | HVN611 | HAN → BKK | May 17, 08:25 UTC | May 18, 03:45 UTC | 19h 20m |
| 2026-05-16 | HVN579 | TPE → HAN | May 16, 23:50 UTC | May 17, 08:25 UTC | 8h 35m |
| 2026-05-16 | HVN578 | HAN → TPE | May 16, 11:31 UTC | May 16, 12:55 UTC | 1h 25m |
| 2026-05-15 | HVN578 | HAN → TPE | May 15, 13:05 UTC | May 16, 12:55 UTC | 23h 50m |
| 2026-05-15 | HVN618 | BKK → HAN | May 15, 12:20 UTC | May 15, 13:20 UTC | 1h 0m |
| 2026-05-15 | HVN619 | HAN → BKK | May 15, 09:50 UTC | May 15, 10:50 UTC | 1h 0m |
| 2026-05-12 | HVN662 | SIN → HAN | May 12, 08:25 UTC | May 12, 08:40 UTC | 15m |
| 2026-05-12 | HVN663 | HAN → SIN | May 12, 05:55 UTC | May 12, 06:05 UTC | 10m |
| 2026-05-11 | HVN357 | FUK → HAN | May 11, 01:15 UTC | May 11, 01:25 UTC | 10m |
| 2026-05-05 | HVN579 | TPE → HAN | May 5, 23:50 UTC | May 6, 01:05 UTC | 1h 15m |
| 2026-05-05 | HVN578 | HAN → TPE | May 5, 00:30 UTC | May 5, 12:40 UTC | 12h 10m |
| 2026-05-04 | HVN586 | HAN → KHH | May 4, 08:55 UTC | May 4, 13:25 UTC | 4h 30m |
| 2026-05-03 | HVN616 | BKK → HAN | May 3, 16:20 UTC | May 3, 16:45 UTC | 25m |
| 2026-05-03 | HVN617 | HAN → BKK | May 3, 14:00 UTC | May 3, 14:35 UTC | 35m |
| 2026-05-01 | HVN503 | CAN → SGN | May 1, 07:50 UTC | May 1, 08:05 UTC | 15m |
| 2026-05-01 | HVN502 | SGN → CAN | May 1, 05:10 UTC | May 1, 05:40 UTC | 30m |
| 2026-04-30 | HVN626 | BKK → DAD | Apr 30, 11:50 UTC | Apr 30, 12:10 UTC | 20m |
| 2026-04-30 | HVN431 | ICN → DAD | Apr 30, 02:40 UTC | Apr 30, 10:40 UTC | 8h 0m |
| 2026-04-29 | HVN430 | DAD → ICN | Apr 29, 17:50 UTC | Apr 29, 20:25 UTC | 2h 35m |
| 2026-04-26 | HVN1397 | UIH → SGN | Apr 26, 09:50 UTC | Apr 26, 10:00 UTC | 10m |
| 2026-04-26 | HVN1396 | SGN → UIH | Apr 26, 07:35 UTC | Apr 26, 07:45 UTC | 10m |
| 2026-04-26 | HVN122 | SGN → DAD | Apr 26, 03:15 UTC | Apr 26, 03:25 UTC | 10m |
| 2026-04-25 | HVN109 | DAD → SGN | Apr 25, 03:20 UTC | Apr 25, 03:30 UTC | 10m |
| 2026-04-25 | HVN110 | SGN → DAD | Apr 25, 00:05 UTC | Apr 25, 00:15 UTC | 10m |
| 2026-04-23 | HVN7356 | SGN → CXR | Apr 23, 05:40 UTC | Apr 23, 05:50 UTC | 10m |
| 2026-04-22 | HVN441 | ICN → CXR | Apr 22, 21:55 UTC | Apr 23, 00:50 UTC | 2h 55m |
| 2026-04-22 | HVN440 | CXR → ICN | Apr 22, 16:30 UTC | Apr 22, 19:10 UTC | 2h 40m |
| 2026-04-21 | HVN440 | CXR → ICN | Apr 21, 23:40 UTC | Apr 22, 19:10 UTC | 19h 30m |
| 2026-04-21 | HVN441 | ICN → CXR | Apr 21, 22:05 UTC | Apr 22, 19:10 UTC | 21h 5m |
| 2026-04-21 | HVN440 | CXR → ICN | Apr 21, 16:15 UTC | Apr 21, 19:05 UTC | 2h 50m |
| 2026-04-21 | HVN7356 | SGN → CXR | Apr 21, 05:30 UTC | Apr 21, 05:40 UTC | 10m |
| 2026-04-20 | HVN441 | ICN → CXR | Apr 20, 22:00 UTC | Apr 21, 01:00 UTC | 3h 0m |
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-A506 page for operator, model, and routing details .