sensors Mode-S transponder
AE4CAA
ICAO 24-bit transponder address
Currently assigned to 05-20007 · SIKORSKY UH-60 Black Hawk
- Hex
- AE4CAA
- Octal
- 53446252
- Decimal
- 11,422,890
- Tail
- 05-20007
- Type
- H60
- Flights observed
- 45
- Distinct callsigns
- 15
- Country
- -
- Last broadcast
- 3d ago
Last known position
Callsign history 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| COOP61 | - | 8 | 2026-06-15 |
| MAZER62 | - | 6 | 2026-04-29 |
| MAZER61 | - | 4 | 2026-04-25 |
| COOP62 | - | 4 | 2026-06-24 |
| MAZER64 | - | 3 | 2026-04-26 |
| MAZER63 | - | 3 | 2026-04-23 |
| MASON61 | - | 3 | 2026-07-15 |
| ARVIN61 | - | 3 | 2026-05-29 |
| MAZER92 | - | 2 | 2026-04-14 |
| COOP92 | - | 2 | 2026-06-27 |
| COOP91 | - | 2 | 2026-06-30 |
| COOP63 | - | 2 | 2026-06-17 |
| MAZER91 | - | 1 | 2026-04-15 |
| MAZER65 | - | 1 | 2026-04-17 |
| ARVIN62 | - | 1 | 2026-05-02 |
Recent flights last 45
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-15 | MASON61 | HOP → HOP | Jul 15, 03:05 UTC | Jul 15, 05:10 UTC | 2h 5m |
| 2026-07-15 | MASON61 | - | Jul 15, 01:40 UTC | Jul 15, 01:50 UTC | 10m |
| 2026-07-13 | MASON61 | - | Jul 13, 17:30 UTC | Jul 13, 17:40 UTC | 10m |
| 2026-06-30 | COOP91 | - | Jun 30, 02:00 UTC | Jun 30, 04:05 UTC | 2h 5m |
| 2026-06-27 | COOP92 | - | Jun 27, 03:55 UTC | Jun 27, 04:09 UTC | 15m |
| 2026-06-27 | COOP92 | - | Jun 27, 01:54 UTC | Jun 27, 02:20 UTC | 25m |
| 2026-06-24 | COOP62 | - | Jun 24, 18:29 UTC | Jun 24, 18:39 UTC | 10m |
| 2026-06-24 | COOP62 | - | Jun 24, 16:14 UTC | Jun 24, 16:24 UTC | 10m |
| 2026-06-22 | COOP62 | - | Jun 22, 19:44 UTC | Jun 22, 20:19 UTC | 35m |
| 2026-06-22 | COOP62 | - | Jun 22, 16:45 UTC | Jun 22, 17:10 UTC | 25m |
| 2026-06-17 | COOP63 | - | Jun 17, 22:55 UTC | Jun 17, 23:10 UTC | 15m |
| 2026-06-17 | COOP63 | - | Jun 17, 18:30 UTC | Jun 17, 19:25 UTC | 55m |
| 2026-06-15 | COOP61 | - | Jun 15, 19:05 UTC | Jun 15, 19:55 UTC | 50m |
| 2026-06-15 | COOP61 | - | Jun 15, 15:59 UTC | Jun 15, 16:19 UTC | 20m |
| 2026-06-11 | COOP61 | - | Jun 11, 20:40 UTC | Jun 11, 20:55 UTC | 15m |
| 2026-06-11 | COOP61 | - | Jun 11, 17:55 UTC | Jun 11, 18:10 UTC | 15m |
| 2026-06-10 | COOP61 | - | Jun 10, 18:10 UTC | Jun 10, 20:05 UTC | 1h 55m |
| 2026-06-10 | COOP61 | - | Jun 10, 16:25 UTC | Jun 10, 17:35 UTC | 1h 10m |
| 2026-06-09 | COOP61 | - | Jun 9, 19:25 UTC | Jun 9, 20:05 UTC | 40m |
| 2026-06-09 | COOP61 | - | Jun 9, 18:20 UTC | Jun 9, 18:30 UTC | 10m |
| 2026-06-02 | COOP91 | - | Jun 2, 02:40 UTC | Jun 2, 02:50 UTC | 10m |
| 2026-05-29 | ARVIN61 | - | May 29, 03:45 UTC | May 29, 03:55 UTC | 10m |
| 2026-05-06 | ARVIN61 | - | May 6, 22:55 UTC | May 6, 23:05 UTC | 10m |
| 2026-05-04 | ARVIN61 | - | May 4, 00:05 UTC | May 4, 00:40 UTC | 35m |
| 2026-05-02 | ARVIN62 | - | May 2, 00:05 UTC | May 2, 00:15 UTC | 10m |
| 2026-04-29 | MAZER62 | COS → COS | Apr 29, 04:29 UTC | Apr 29, 04:34 UTC | 5m |
| 2026-04-29 | MAZER62 | COS → COS | Apr 29, 02:35 UTC | Apr 29, 04:20 UTC | 1h 45m |
| 2026-04-26 | MAZER64 | - | Apr 26, 01:50 UTC | Apr 26, 03:20 UTC | 1h 30m |
| 2026-04-25 | MAZER61 | - | Apr 25, 04:50 UTC | Apr 25, 05:30 UTC | 40m |
| 2026-04-25 | MAZER61 | - | Apr 25, 01:50 UTC | Apr 25, 03:25 UTC | 1h 35m |
| 2026-04-23 | MAZER63 | - | Apr 23, 00:30 UTC | Apr 23, 00:45 UTC | 15m |
| 2026-04-23 | MAZER63 | - | Apr 23, 00:05 UTC | Apr 23, 00:25 UTC | 20m |
| 2026-04-22 | MAZER62 | - | Apr 22, 22:40 UTC | Apr 23, 00:00 UTC | 1h 20m |
| 2026-04-22 | MAZER62 | COS → COS | Apr 22, 20:35 UTC | Apr 22, 22:30 UTC | 1h 55m |
| 2026-04-20 | MAZER63 | - | Apr 20, 17:35 UTC | Apr 20, 18:00 UTC | 25m |
| 2026-04-20 | MAZER62 | - | Apr 20, 16:15 UTC | Apr 20, 16:30 UTC | 15m |
| 2026-04-20 | MAZER62 | - | Apr 20, 13:50 UTC | Apr 20, 14:05 UTC | 15m |
| 2026-04-17 | MAZER65 | - | Apr 17, 15:35 UTC | Apr 17, 16:00 UTC | 25m |
| 2026-04-15 | MAZER61 | - | Apr 15, 22:30 UTC | Apr 15, 22:40 UTC | 10m |
| 2026-04-15 | MAZER91 | - | Apr 15, 19:30 UTC | Apr 15, 19:45 UTC | 15m |
| 2026-04-14 | MAZER61 | - | Apr 14, 22:20 UTC | Apr 14, 22:30 UTC | 10m |
| 2026-04-14 | MAZER64 | - | Apr 14, 18:55 UTC | Apr 14, 20:05 UTC | 1h 10m |
| 2026-04-14 | MAZER92 | - | Apr 14, 16:55 UTC | Apr 14, 17:35 UTC | 40m |
| 2026-04-14 | MAZER64 | - | Apr 14, 15:45 UTC | Apr 14, 16:00 UTC | 15m |
| 2026-04-13 | MAZER92 | - | Apr 13, 16:50 UTC | Apr 13, 17:05 UTC | 15m |
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 05-20007 page for operator, model, and routing details .