sensors Mode-S transponder
AE6DA4
ICAO 24-bit transponder address
Currently assigned to 19-14491 · Sikorsky HH-60W Jolly Green II
- Hex
- AE6DA4
- Octal
- 53466644
- Decimal
- 11,431,332
- Tail
- 19-14491
- Type
- H60
- Flights observed
- 40
- Distinct callsigns
- 17
- Country
- -
- Last broadcast
- 11d ago
Last known position
Callsign history 17 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SKULL76 | - | 6 | 2026-06-15 |
| SKULL84 | - | 4 | 2026-05-06 |
| SKULL51 | - | 4 | 2026-06-17 |
| SKULL83 | - | 3 | 2026-04-28 |
| SKULL61 | - | 3 | 2026-06-11 |
| SKULL01 | - | 3 | 2026-06-16 |
| SKULL97 | - | 2 | 2026-05-11 |
| SKULL90 | - | 2 | 2026-06-12 |
| SKULL81 | - | 2 | 2026-04-16 |
| SKULL69 | - | 2 | 2026-06-04 |
| SKULL52 | - | 2 | 2026-06-03 |
| SKULL33 | - | 2 | 2026-07-07 |
| SKULL78 | - | 1 | 2026-05-27 |
| SKULL67 | - | 1 | 2026-06-03 |
| SKULL62 | - | 1 | 2026-06-17 |
| JOLLY11 | - | 1 | 2026-05-03 |
| JOLLY | - | 1 | 2026-05-02 |
Recent flights last 40
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-07 | SKULL33 | - | Jul 7, 19:55 UTC | Jul 7, 21:55 UTC | 2h 0m |
| 2026-07-07 | SKULL33 | ABQ → ABQ | Jul 7, 18:00 UTC | Jul 7, 19:15 UTC | 1h 15m |
| 2026-06-17 | SKULL51 | - | Jun 17, 20:30 UTC | Jun 17, 20:45 UTC | 15m |
| 2026-06-17 | SKULL51 | - | Jun 17, 17:55 UTC | Jun 17, 19:15 UTC | 1h 20m |
| 2026-06-17 | SKULL62 | - | Jun 17, 04:55 UTC | Jun 17, 05:10 UTC | 15m |
| 2026-06-16 | SKULL01 | - | Jun 16, 19:55 UTC | Jun 16, 20:45 UTC | 50m |
| 2026-06-16 | SKULL01 | - | Jun 16, 18:15 UTC | Jun 16, 19:05 UTC | 50m |
| 2026-06-15 | SKULL76 | - | Jun 15, 21:55 UTC | Jun 15, 22:05 UTC | 10m |
| 2026-06-12 | SKULL90 | - | Jun 12, 04:40 UTC | Jun 12, 04:55 UTC | 15m |
| 2026-06-12 | SKULL90 | - | Jun 12, 03:30 UTC | Jun 12, 03:50 UTC | 20m |
| 2026-06-11 | SKULL61 | - | Jun 11, 05:15 UTC | Jun 11, 06:40 UTC | 1h 25m |
| 2026-06-11 | SKULL61 | - | Jun 11, 03:20 UTC | Jun 11, 03:55 UTC | 35m |
| 2026-06-10 | SKULL51 | - | Jun 10, 05:50 UTC | Jun 10, 06:50 UTC | 1h 0m |
| 2026-06-10 | SKULL51 | - | Jun 10, 03:05 UTC | Jun 10, 04:20 UTC | 1h 15m |
| 2026-06-09 | SKULL01 | - | Jun 9, 18:15 UTC | Jun 9, 19:25 UTC | 1h 10m |
| 2026-06-04 | SKULL69 | - | Jun 4, 18:40 UTC | Jun 4, 19:20 UTC | 40m |
| 2026-06-04 | SKULL69 | - | Jun 4, 17:50 UTC | Jun 4, 18:00 UTC | 10m |
| 2026-06-03 | SKULL67 | - | Jun 3, 19:45 UTC | Jun 3, 19:55 UTC | 10m |
| 2026-06-03 | SKULL52 | - | Jun 3, 06:15 UTC | Jun 3, 06:25 UTC | 10m |
| 2026-05-27 | SKULL78 | - | May 27, 21:40 UTC | May 27, 21:55 UTC | 15m |
| 2026-05-12 | SKULL61 | - | May 12, 04:40 UTC | May 12, 05:10 UTC | 30m |
| 2026-05-11 | SKULL97 | - | May 11, 20:50 UTC | May 11, 21:00 UTC | 10m |
| 2026-05-11 | SKULL97 | - | May 11, 18:00 UTC | May 11, 18:25 UTC | 25m |
| 2026-05-06 | SKULL84 | - | May 6, 04:05 UTC | May 6, 04:15 UTC | 10m |
| 2026-05-03 | JOLLY11 | - | May 3, 15:40 UTC | May 3, 16:45 UTC | 1h 5m |
| 2026-05-02 | JOLLY | RND → RND | May 2, 16:05 UTC | May 2, 17:00 UTC | 55m |
| 2026-04-29 | SKULL52 | - | Apr 29, 21:00 UTC | Apr 29, 21:35 UTC | 35m |
| 2026-04-28 | SKULL83 | - | Apr 28, 21:25 UTC | Apr 28, 21:40 UTC | 15m |
| 2026-04-28 | SKULL83 | - | Apr 28, 19:55 UTC | Apr 28, 20:05 UTC | 10m |
| 2026-04-28 | SKULL83 | - | Apr 28, 18:15 UTC | Apr 28, 19:10 UTC | 55m |
| 2026-04-17 | SKULL84 | - | Apr 17, 05:20 UTC | Apr 17, 06:10 UTC | 50m |
| 2026-04-17 | SKULL84 | - | Apr 17, 04:50 UTC | Apr 17, 05:15 UTC | 25m |
| 2026-04-17 | SKULL84 | - | Apr 17, 02:35 UTC | Apr 17, 03:15 UTC | 40m |
| 2026-04-16 | SKULL81 | - | Apr 16, 21:20 UTC | Apr 16, 21:30 UTC | 10m |
| 2026-04-16 | SKULL81 | - | Apr 16, 17:35 UTC | Apr 16, 18:00 UTC | 25m |
| 2026-04-14 | SKULL76 | - | Apr 14, 16:50 UTC | Apr 14, 17:10 UTC | 20m |
| 2026-04-14 | SKULL76 | - | Apr 14, 15:45 UTC | Apr 14, 16:45 UTC | 1h 0m |
| 2026-04-13 | SKULL76 | - | Apr 13, 16:15 UTC | Apr 13, 17:20 UTC | 1h 5m |
| 2026-04-13 | SKULL76 | - | Apr 13, 16:05 UTC | Apr 13, 16:15 UTC | 10m |
| 2026-04-13 | SKULL76 | - | Apr 13, 14:15 UTC | Apr 13, 14:30 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 19-14491 page for operator, model, and routing details .