sensors Mode-S transponder
AE4D31
ICAO 24-bit transponder address
Currently assigned to 168530 · SIKORSKY UH-60 Black Hawk
- Hex
- AE4D31
- Octal
- 53446461
- Decimal
- 11,423,025
- Tail
- 168530
- Type
- H60
- Flights observed
- 25
- Distinct callsigns
- 7
- Country
- -
- Last broadcast
- 17m ago
Last known position
Callsign history 7 distinct
Recent flights last 25
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-18 | RRNR43 | - | Jul 18, 04:55 UTC | Jul 18, 06:15 UTC | 1h 20m |
| 2026-07-15 | RMRNR43 | - | Jul 15, 21:15 UTC | Jul 15, 21:45 UTC | 30m |
| 2026-07-09 | RMRNR43 | - | Jul 9, 04:25 UTC | Jul 9, 05:10 UTC | 45m |
| 2026-07-09 | RMRNR43 | - | Jul 9, 03:00 UTC | Jul 9, 03:25 UTC | 25m |
| 2026-07-09 | RMRNR43 | - | Jul 9, 00:50 UTC | Jul 9, 01:40 UTC | 50m |
| 2026-07-08 | BT43 | - | Jul 8, 21:45 UTC | Jul 9, 00:15 UTC | 2h 30m |
| 2026-06-30 | RMRNR43 | - | Jun 30, 19:00 UTC | Jun 30, 19:15 UTC | 15m |
| 2026-06-29 | RMRNR43 | - | Jun 29, 22:15 UTC | Jun 29, 23:29 UTC | 1h 15m |
| 2026-06-29 | RMRNR43 | - | Jun 29, 19:29 UTC | Jun 29, 21:39 UTC | 2h 10m |
| 2026-06-29 | RESCU11 | - | Jun 29, 11:14 UTC | Jun 29, 12:09 UTC | 55m |
| 2026-06-26 | RMRNR43 | - | Jun 26, 20:59 UTC | Jun 26, 21:50 UTC | 50m |
| 2026-06-26 | RR43 | - | Jun 26, 20:04 UTC | Jun 26, 20:24 UTC | 20m |
| 2026-06-23 | RMRNR43 | - | Jun 23, 23:10 UTC | Jun 24, 00:20 UTC | 1h 10m |
| 2026-06-23 | RMRNR43 | - | Jun 23, 20:34 UTC | Jun 23, 21:34 UTC | 1h 0m |
| 2026-06-23 | RMRNR43 | - | Jun 23, 19:19 UTC | Jun 23, 19:59 UTC | 40m |
| 2026-06-18 | RMRNR43 | - | Jun 18, 20:00 UTC | Jun 18, 20:25 UTC | 25m |
| 2026-06-12 | RMRNR43 | - | Jun 12, 21:00 UTC | Jun 12, 21:25 UTC | 25m |
| 2026-06-03 | RMRNR43 | - | Jun 3, 00:55 UTC | Jun 3, 01:10 UTC | 15m |
| 2026-05-28 | RMRNR43 | - | May 28, 00:55 UTC | May 28, 01:10 UTC | 15m |
| 2026-05-28 | RMRNR43 | - | May 28, 00:25 UTC | May 28, 00:30 UTC | 5m |
| 2026-05-22 | BULET43 | NZY → NZY | May 22, 20:20 UTC | May 22, 21:05 UTC | 45m |
| 2026-05-18 | BT43 | NZY → NZY | May 18, 01:00 UTC | May 18, 01:55 UTC | 55m |
| 2026-05-17 | BT43 | NZY → NZY | May 17, 23:15 UTC | May 17, 23:50 UTC | 35m |
| 2026-05-16 | BULET43 | NZY → NZY | May 16, 00:35 UTC | May 16, 01:40 UTC | 1h 5m |
| 2026-05-15 | FFAB123 | NZY → NZY | May 15, 01:45 UTC | May 15, 02:45 UTC | 1h 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 168530 page for operator, model, and routing details .