sensors Mode-S transponder
70A9FD
ICAO 24-bit transponder address
Currently assigned to 9N-AMQ · AEROSPATIALE AS-350 Ecureuil
- Hex
- 70A9FD
- Octal
- 34124775
- Decimal
- 7,383,549
- Tail
- 9N-AMQ
- Type
- AS50
- Flights observed
- 5
- Distinct callsigns
- 1
- Country
- -
- Last broadcast
- 2h ago
Current position
Callsign history 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| 9NAMQ | - | 5 | 2026-05-25 |
Recent flights last 5
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-25 | 9NAMQ | - | May 25, 02:00 UTC | May 25, 02:30 UTC | 30m |
| 2026-05-24 | 9NAMQ | - | May 24, 06:30 UTC | May 24, 06:55 UTC | 25m |
| 2026-05-21 | 9NAMQ | - | May 21, 06:00 UTC | May 21, 06:35 UTC | 35m |
| 2026-05-16 | 9NAMQ | - | May 16, 05:10 UTC | May 16, 05:35 UTC | 25m |
| 2026-04-20 | 9NAMQ | - | Apr 20, 03:05 UTC | Apr 20, 03:50 UTC | 45m |
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 9N-AMQ page for operator, model, and routing details .