sensors Mode-S transponder
AE50E2
ICAO 24-bit transponder address
Currently assigned to 10-20311 · SIKORSKY UH-60 Black Hawk
- Hex
- AE50E2
- Octal
- 53450342
- Decimal
- 11,423,970
- Tail
- 10-20311
- Type
- H60
- Flights observed
- 19
- Distinct callsigns
- 13
- Country
- -
- Last broadcast
- Jul 25, 03:15 UTC
Last known position
Callsign history 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SPUD68 | - | 2 | 2026-06-30 |
| SPUD38 | - | 2 | 2026-07-23 |
| MONDO54 | - | 2 | 2026-06-24 |
| MONDO26 | - | 2 | 2026-06-25 |
| MONDO24 | - | 2 | 2026-07-23 |
| CAPE48 | - | 2 | 2026-07-22 |
| SUPRT96 | - | 1 | 2026-05-29 |
| SPUD70 | - | 1 | 2026-04-14 |
| SPUD29 | - | 1 | 2026-06-25 |
| MONDO85 | - | 1 | 2026-06-26 |
| MONDO28 | - | 1 | 2026-07-25 |
| MONDO13 | - | 1 | 2026-07-02 |
| CAPE30 | - | 1 | 2026-04-15 |
Recent flights last 19
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | MONDO28 | - | Jul 25, 03:00 UTC | Jul 25, 03:15 UTC | 15m |
| 2026-07-23 | SPUD38 | - | Jul 23, 15:45 UTC | Jul 23, 16:10 UTC | 25m |
| 2026-07-23 | SPUD38 | - | Jul 23, 13:50 UTC | Jul 23, 14:40 UTC | 50m |
| 2026-07-23 | MONDO24 | - | Jul 23, 02:45 UTC | Jul 23, 03:15 UTC | 30m |
| 2026-07-23 | MONDO24 | - | Jul 23, 01:30 UTC | Jul 23, 01:50 UTC | 20m |
| 2026-07-22 | CAPE48 | - | Jul 22, 15:25 UTC | Jul 22, 16:10 UTC | 45m |
| 2026-07-22 | CAPE48 | - | Jul 22, 13:40 UTC | Jul 22, 14:05 UTC | 25m |
| 2026-07-02 | MONDO13 | - | Jul 2, 02:00 UTC | Jul 2, 04:40 UTC | 2h 40m |
| 2026-06-30 | SPUD68 | - | Jun 30, 15:05 UTC | Jun 30, 15:50 UTC | 45m |
| 2026-06-30 | SPUD68 | - | Jun 30, 13:40 UTC | Jun 30, 14:30 UTC | 50m |
| 2026-06-26 | MONDO85 | - | Jun 26, 04:39 UTC | Jun 26, 04:50 UTC | 10m |
| 2026-06-25 | SPUD29 | - | Jun 25, 19:09 UTC | Jun 25, 21:10 UTC | 2h 0m |
| 2026-06-25 | MONDO26 | - | Jun 25, 02:30 UTC | Jun 25, 04:25 UTC | 1h 55m |
| 2026-06-24 | MONDO54 | - | Jun 24, 02:24 UTC | Jun 24, 03:35 UTC | 1h 10m |
| 2026-06-24 | MONDO54 | - | Jun 24, 01:14 UTC | Jun 24, 01:24 UTC | 10m |
| 2026-05-29 | SUPRT96 | - | May 29, 13:40 UTC | May 29, 14:15 UTC | 35m |
| 2026-04-22 | MONDO26 | - | Apr 22, 03:05 UTC | Apr 22, 03:15 UTC | 10m |
| 2026-04-15 | CAPE30 | - | Apr 15, 13:15 UTC | Apr 15, 13:45 UTC | 30m |
| 2026-04-14 | SPUD70 | - | Apr 14, 13:40 UTC | Apr 14, 14:00 UTC | 20m |
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 10-20311 page for operator, model, and routing details .