sensors Mode-S transponder
AE603E
ICAO 24-bit transponder address
Currently assigned to 17-20975 · SIKORSKY UH-60 Black Hawk
- Hex
- AE603E
- Octal
- 53460076
- Decimal
- 11,427,902
- Tail
- 17-20975
- Type
- H60
- Flights observed
- 31
- Distinct callsigns
- 19
- Country
- -
- Last broadcast
- 23d ago
Last known position
Callsign history 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SUPRT21 | - | 3 | 2026-07-07 |
| SPUD51 | - | 2 | 2026-07-15 |
| SPUD29 | - | 2 | 2026-07-11 |
| MONDO48 | - | 2 | 2026-06-25 |
| DYNO36 | - | 2 | 2026-06-24 |
| CAPE41 | - | 2 | 2026-06-24 |
| CAPE38 | - | 2 | 2026-06-12 |
| CAPE30 | - | 2 | 2026-06-11 |
| CAPE17 | - | 2 | 2026-06-05 |
| CAPE10 | - | 2 | 2026-06-25 |
| SUPRT22 | - | 1 | 2026-04-22 |
| MONDO80 | - | 1 | 2026-07-11 |
| MONDO66 | - | 1 | 2026-04-28 |
| MONDO63 | - | 1 | 2026-06-09 |
| MONDO21 | - | 1 | 2026-06-12 |
| MONDO13 | - | 1 | 2026-07-09 |
| MONDO10 | - | 1 | 2026-06-04 |
| DYNO96 | - | 1 | 2026-04-21 |
| CAPE32 | - | 1 | 2026-05-11 |
Recent flights last 31
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-15 | SPUD51 | - | Jul 15, 21:35 UTC | Jul 15, 22:35 UTC | 1h 0m |
| 2026-07-15 | SPUD51 | - | Jul 15, 19:30 UTC | Jul 15, 20:35 UTC | 1h 5m |
| 2026-07-11 | MONDO80 | - | Jul 11, 04:20 UTC | Jul 11, 05:01 UTC | 40m |
| 2026-07-11 | SPUD29 | - | Jul 11, 01:20 UTC | Jul 11, 02:30 UTC | 1h 10m |
| 2026-07-09 | - | - | Jul 9, 13:50 UTC | Jul 9, 14:00 UTC | 10m |
| 2026-07-09 | MONDO13 | - | Jul 9, 01:10 UTC | Jul 9, 03:45 UTC | 2h 35m |
| 2026-07-07 | SUPRT21 | - | Jul 7, 20:05 UTC | Jul 7, 20:30 UTC | 25m |
| 2026-06-28 | SUPRT21 | - | Jun 28, 00:30 UTC | Jun 28, 00:39 UTC | 10m |
| 2026-06-25 | CAPE10 | - | Jun 25, 19:59 UTC | Jun 25, 20:25 UTC | 25m |
| 2026-06-25 | CAPE10 | - | Jun 25, 18:29 UTC | Jun 25, 18:55 UTC | 25m |
| 2026-06-25 | MONDO48 | - | Jun 25, 03:34 UTC | Jun 25, 05:05 UTC | 1h 30m |
| 2026-06-25 | MONDO48 | - | Jun 25, 02:25 UTC | Jun 25, 02:59 UTC | 35m |
| 2026-06-24 | CAPE41 | - | Jun 24, 20:24 UTC | Jun 24, 20:44 UTC | 20m |
| 2026-06-24 | CAPE41 | - | Jun 24, 18:50 UTC | Jun 24, 19:15 UTC | 25m |
| 2026-06-24 | DYNO36 | - | Jun 24, 02:40 UTC | Jun 24, 04:15 UTC | 1h 35m |
| 2026-06-24 | DYNO36 | - | Jun 24, 01:55 UTC | Jun 24, 02:09 UTC | 15m |
| 2026-06-23 | SPUD29 | - | Jun 23, 20:04 UTC | Jun 23, 21:54 UTC | 1h 50m |
| 2026-06-12 | CAPE38 | - | Jun 12, 20:30 UTC | Jun 12, 21:05 UTC | 35m |
| 2026-06-12 | CAPE38 | - | Jun 12, 19:00 UTC | Jun 12, 19:50 UTC | 50m |
| 2026-06-12 | MONDO21 | - | Jun 12, 04:05 UTC | Jun 12, 04:55 UTC | 50m |
| 2026-06-11 | CAPE30 | - | Jun 11, 20:05 UTC | Jun 11, 20:40 UTC | 35m |
| 2026-06-11 | CAPE30 | - | Jun 11, 18:50 UTC | Jun 11, 19:35 UTC | 45m |
| 2026-06-09 | MONDO63 | - | Jun 9, 01:30 UTC | Jun 9, 03:40 UTC | 2h 10m |
| 2026-06-05 | CAPE17 | - | Jun 5, 15:15 UTC | Jun 5, 16:05 UTC | 50m |
| 2026-06-05 | CAPE17 | - | Jun 5, 13:35 UTC | Jun 5, 14:25 UTC | 50m |
| 2026-06-04 | MONDO10 | - | Jun 4, 01:25 UTC | Jun 4, 03:40 UTC | 2h 15m |
| 2026-05-13 | SUPRT21 | - | May 13, 20:55 UTC | May 13, 21:20 UTC | 25m |
| 2026-05-11 | CAPE32 | - | May 11, 18:55 UTC | May 11, 20:05 UTC | 1h 10m |
| 2026-04-28 | MONDO66 | - | Apr 28, 01:40 UTC | Apr 28, 02:40 UTC | 1h 0m |
| 2026-04-22 | SUPRT22 | - | Apr 22, 13:25 UTC | Apr 22, 13:50 UTC | 25m |
| 2026-04-21 | DYNO96 | - | Apr 21, 01:25 UTC | Apr 21, 01:40 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 17-20975 page for operator, model, and routing details .