sensors Mode-S transponder
AE4DE0
ICAO 24-bit transponder address
Currently assigned to CBP-233 · operated by US CUSTOMS AND BORDER PROTECTION
- Hex
- AE4DE0
- Octal
- 53446740
- Decimal
- 11,423,200
- Tail
- CBP-233
- Type
- Q9
- Flights observed
- 15
- Distinct callsigns
- 2
- Country
- -
- Last broadcast
- 16d ago
Last known position
Callsign history 2 distinct
Recent flights last 15
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-28 | TROY702 | - | Jun 28, 13:59 UTC | Jun 28, 14:09 UTC | 10m |
| 2026-06-25 | TROY702 | - | Jun 25, 14:04 UTC | Jun 25, 14:24 UTC | 20m |
| 2026-06-25 | TROY702 | - | Jun 25, 09:05 UTC | Jun 25, 09:14 UTC | 10m |
| 2026-06-25 | TROY702 | - | Jun 25, 00:55 UTC | Jun 25, 01:04 UTC | 10m |
| 2026-06-18 | MAZE702 | - | Jun 18, 06:30 UTC | Jun 18, 06:40 UTC | 10m |
| 2026-06-07 | MAZE702 | - | Jun 7, 13:10 UTC | Jun 7, 13:30 UTC | 20m |
| 2026-05-28 | TROY702 | - | May 28, 06:50 UTC | May 28, 07:05 UTC | 15m |
| 2026-05-14 | TROY702 | - | May 14, 15:01 UTC | May 14, 15:10 UTC | 10m |
| 2026-05-13 | TROY702 | - | May 13, 10:15 UTC | May 13, 10:25 UTC | 10m |
| 2026-04-23 | TROY702 | - | Apr 23, 20:55 UTC | Apr 23, 21:35 UTC | 40m |
| 2026-04-23 | TROY702 | - | Apr 23, 16:40 UTC | Apr 23, 17:00 UTC | 20m |
| 2026-04-23 | TROY702 | - | Apr 23, 15:05 UTC | Apr 23, 15:20 UTC | 15m |
| 2026-04-17 | TROY702 | - | Apr 17, 17:25 UTC | Apr 17, 17:50 UTC | 25m |
| 2026-04-17 | TROY702 | - | Apr 17, 15:20 UTC | Apr 17, 16:00 UTC | 40m |
| 2026-04-17 | TROY702 | - | Apr 17, 14:45 UTC | Apr 17, 15:15 UTC | 29m |
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 CBP-233 page for operator, model, and routing details .