sensors Mode-S transponder
AE636D
ICAO 24-bit transponder address
Currently assigned to 18-21029 · SIKORSKY UH-60 Black Hawk
- Hex
- AE636D
- Octal
- 53461555
- Decimal
- 11,428,717
- Tail
- 18-21029
- Type
- H60
- Flights observed
- 40
- Distinct callsigns
- 2
- Country
- -
- Last broadcast
- 12d ago
Last known position
Callsign history 2 distinct
Recent flights last 40
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | G21029 | - | Jul 24, 17:10 UTC | Jul 24, 17:35 UTC | 25m |
| 2026-07-24 | G21029 | - | Jul 24, 15:25 UTC | Jul 24, 15:35 UTC | 10m |
| 2026-07-24 | G21029 | - | Jul 24, 13:10 UTC | Jul 24, 14:05 UTC | 55m |
| 2026-07-22 | G21029 | - | Jul 22, 21:30 UTC | Jul 22, 21:40 UTC | 10m |
| 2026-07-17 | G21029 | - | Jul 17, 18:25 UTC | Jul 17, 19:25 UTC | 1h 0m |
| 2026-07-14 | G21029 | - | Jul 14, 17:15 UTC | Jul 14, 17:40 UTC | 25m |
| 2026-07-14 | G21029 | - | Jul 14, 13:15 UTC | Jul 14, 14:30 UTC | 1h 15m |
| 2026-06-24 | G21029 | - | Jun 24, 16:29 UTC | Jun 24, 16:45 UTC | 15m |
| 2026-06-24 | G21029 | - | Jun 24, 15:29 UTC | Jun 24, 15:59 UTC | 30m |
| 2026-06-16 | G21029 | - | Jun 16, 01:50 UTC | Jun 16, 02:45 UTC | 55m |
| 2026-06-13 | G21029 | - | Jun 13, 19:25 UTC | Jun 13, 19:50 UTC | 25m |
| 2026-06-13 | G21029 | - | Jun 13, 18:10 UTC | Jun 13, 18:30 UTC | 20m |
| 2026-06-13 | G21029 | - | Jun 13, 15:00 UTC | Jun 13, 15:25 UTC | 25m |
| 2026-06-12 | G21029 | - | Jun 12, 15:10 UTC | Jun 12, 15:30 UTC | 20m |
| 2026-06-12 | G21029 | - | Jun 12, 02:40 UTC | Jun 12, 03:25 UTC | 45m |
| 2026-06-12 | G21029 | - | Jun 12, 01:30 UTC | Jun 12, 01:55 UTC | 25m |
| 2026-05-19 | G21029 | - | May 19, 17:25 UTC | May 19, 18:25 UTC | 1h 0m |
| 2026-05-19 | FUZZ29 | - | May 19, 14:30 UTC | May 19, 15:35 UTC | 1h 5m |
| 2026-05-18 | FUZZ29 | - | May 18, 19:00 UTC | May 18, 19:50 UTC | 50m |
| 2026-05-18 | G21029 | - | May 18, 16:20 UTC | May 18, 17:15 UTC | 55m |
| 2026-05-07 | G21029 | - | May 7, 18:15 UTC | May 7, 19:25 UTC | 1h 10m |
| 2026-05-06 | G21029 | - | May 6, 17:00 UTC | May 6, 17:10 UTC | 10m |
| 2026-05-06 | G21029 | - | May 6, 13:45 UTC | May 6, 14:00 UTC | 15m |
| 2026-05-05 | G21029 | - | May 5, 13:40 UTC | May 5, 13:50 UTC | 10m |
| 2026-05-04 | G21029 | DAN → POB | May 4, 20:15 UTC | May 4, 20:55 UTC | 40m |
| 2026-05-04 | G21029 | - | May 4, 19:05 UTC | May 4, 19:35 UTC | 30m |
| 2026-05-04 | G21029 | - | May 4, 17:50 UTC | May 4, 18:05 UTC | 15m |
| 2026-05-02 | G21029 | - | May 2, 17:55 UTC | May 2, 18:25 UTC | 30m |
| 2026-05-02 | G21029 | - | May 2, 15:30 UTC | May 2, 16:00 UTC | 30m |
| 2026-05-02 | G21029 | - | May 2, 14:25 UTC | May 2, 14:50 UTC | 25m |
| 2026-05-01 | G21029 | - | May 1, 22:25 UTC | May 1, 23:40 UTC | 1h 15m |
| 2026-05-01 | G21029 | - | May 1, 02:10 UTC | May 1, 02:40 UTC | 30m |
| 2026-04-22 | G21029 | - | Apr 22, 14:15 UTC | Apr 22, 14:35 UTC | 20m |
| 2026-04-22 | FUZZ29 | - | Apr 22, 11:15 UTC | Apr 22, 12:15 UTC | 1h 0m |
| 2026-04-22 | G21029 | - | Apr 22, 09:15 UTC | Apr 22, 10:25 UTC | 1h 10m |
| 2026-04-20 | G21029 | - | Apr 20, 19:15 UTC | Apr 20, 19:40 UTC | 25m |
| 2026-04-20 | G21029 | - | Apr 20, 12:15 UTC | Apr 20, 13:00 UTC | 45m |
| 2026-04-16 | G21029 | - | Apr 16, 22:54 UTC | Apr 16, 23:05 UTC | 10m |
| 2026-04-16 | G21029 | - | Apr 16, 16:10 UTC | Apr 16, 16:20 UTC | 10m |
| 2026-04-16 | G21029 | - | Apr 16, 14:40 UTC | Apr 16, 15:10 UTC | 30m |
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 18-21029 page for operator, model, and routing details .