sensors Mode-S transponder
8881D1
ICAO 24-bit transponder address · allocated to Vietnam
Currently assigned to VN-A298 · GULFSTREAM G650
- Hex
- 8881D1
- Octal
- 42100721
- Decimal
- 8,946,129
- Country
- VN
- Tail
- VN-A298
- Type
- GLF6
- Flights observed
- 31
- Distinct callsigns
- 1
- Country
- VN
- Last broadcast
- Jul 26, 08:40 UTC
Last known position
Country allocation
The ICAO 24-bit address 8881D1 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SAV298 | - | 31 | 2026-07-26 |
Recent flights last 31
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | SAV298 | - | Jul 26, 08:25 UTC | Jul 26, 08:40 UTC | 15m |
| 2026-07-26 | SAV298 | - | Jul 26, 02:30 UTC | Jul 26, 02:45 UTC | 15m |
| 2026-07-22 | SAV298 | - | Jul 22, 13:50 UTC | Jul 22, 23:55 UTC | 10h 5m |
| 2026-07-20 | SAV298 | - | Jul 20, 14:35 UTC | Jul 20, 21:00 UTC | 6h 25m |
| 2026-07-17 | SAV298 | ATL → TEB | Jul 17, 15:15 UTC | Jul 17, 16:55 UTC | 1h 40m |
| 2026-07-15 | SAV298 | - | Jul 15, 13:00 UTC | Jul 15, 14:35 UTC | 1h 35m |
| 2026-07-12 | SAV298 | SFO → DAL | Jul 12, 17:30 UTC | Jul 12, 20:30 UTC | 3h 0m |
| 2026-07-09 | SAV298 | - | Jul 9, 18:45 UTC | Jul 9, 20:35 UTC | 1h 50m |
| 2026-07-06 | SAV298 | - | Jul 6, 07:05 UTC | Jul 6, 16:15 UTC | 9h 10m |
| 2026-07-06 | SAV298 | - | Jul 6, 04:10 UTC | Jul 6, 04:25 UTC | 15m |
| 2026-06-30 | SAV298 | - | Jun 30, 11:40 UTC | Jun 30, 11:55 UTC | 15m |
| 2026-06-29 | SAV298 | - | Jun 29, 06:54 UTC | Jun 29, 07:09 UTC | 15m |
| 2026-06-28 | SAV298 | - | Jun 28, 08:34 UTC | Jun 28, 08:59 UTC | 25m |
| 2026-06-25 | SAV298 | - | Jun 25, 03:20 UTC | Jun 25, 03:44 UTC | 25m |
| 2026-06-24 | SAV298 | - | Jun 24, 05:29 UTC | Jun 24, 05:49 UTC | 20m |
| 2026-06-21 | SAV298 | - | Jun 21, 04:20 UTC | Jun 21, 04:34 UTC | 15m |
| 2026-06-18 | SAV298 | - | Jun 18, 07:40 UTC | Jun 18, 08:00 UTC | 20m |
| 2026-06-18 | SAV298 | - | Jun 18, 02:10 UTC | Jun 18, 02:30 UTC | 20m |
| 2026-06-15 | SAV298 | - | Jun 15, 12:10 UTC | Jun 16, 03:25 UTC | 15h 15m |
| 2026-06-12 | SAV298 | - | Jun 12, 08:40 UTC | Jun 12, 08:55 UTC | 15m |
| 2026-06-11 | SAV298 | - | Jun 11, 04:40 UTC | Jun 11, 05:00 UTC | 20m |
| 2026-04-28 | SAV298 | - | Apr 28, 09:10 UTC | Apr 28, 09:25 UTC | 15m |
| 2026-04-25 | SAV298 | - | Apr 25, 03:25 UTC | Apr 25, 03:35 UTC | 10m |
| 2026-04-19 | SAV298 | - | Apr 19, 08:25 UTC | Apr 19, 09:20 UTC | 55m |
| 2026-04-19 | SAV298 | - | Apr 19, 04:55 UTC | Apr 19, 05:50 UTC | 55m |
| 2026-04-17 | SAV298 | - | Apr 17, 12:25 UTC | Apr 17, 12:35 UTC | 10m |
| 2026-04-17 | SAV298 | - | Apr 17, 11:00 UTC | Apr 17, 11:15 UTC | 15m |
| 2026-04-15 | SAV298 | - | Apr 15, 10:05 UTC | Apr 15, 10:35 UTC | 30m |
| 2026-04-15 | SAV298 | - | Apr 15, 07:35 UTC | Apr 15, 08:01 UTC | 25m |
| 2026-04-14 | SAV298 | - | Apr 14, 07:10 UTC | Apr 14, 07:25 UTC | 15m |
| 2026-04-14 | SAV298 | - | Apr 14, 05:35 UTC | Apr 14, 05:55 UTC | 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-A298 page for operator, model, and routing details .