sensors Mode-S transponder
AE5A1A
ICAO 24-bit transponder address
Currently assigned to 16-08224 · BOEING-VERTOL CH-47 Chinook
- Hex
- AE5A1A
- Octal
- 53455032
- Decimal
- 11,426,330
- Tail
- 16-08224
- Type
- H47
- Flights observed
- 67
- Distinct callsigns
- 13
- Country
- -
- Last broadcast
- 1d ago
Last known position
Callsign history 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| URSA01 | - | 16 | 2026-07-02 |
| URSA19 | - | 7 | 2026-06-23 |
| URSA87 | - | 6 | 2026-06-25 |
| URSA26 | - | 6 | 2026-05-28 |
| URSA06 | - | 6 | 2026-06-30 |
| URSA98 | - | 5 | 2026-06-09 |
| URSA30 | - | 5 | 2026-07-15 |
| URSA05 | - | 5 | 2026-07-17 |
| URSA10 | - | 4 | 2026-07-01 |
| URSA75 | - | 3 | 2026-06-11 |
| URSA23 | - | 2 | 2026-06-16 |
| URSA22 | - | 1 | 2026-05-15 |
| URSA02 | - | 1 | 2026-05-04 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | URSA05 | - | Jul 17, 22:35 UTC | Jul 17, 23:14 UTC | 40m |
| 2026-07-17 | URSA05 | - | Jul 17, 19:45 UTC | Jul 17, 20:35 UTC | 50m |
| 2026-07-15 | URSA30 | - | Jul 15, 21:25 UTC | Jul 15, 23:25 UTC | 2h 0m |
| 2026-07-15 | URSA30 | - | Jul 15, 19:45 UTC | Jul 15, 21:10 UTC | 1h 25m |
| 2026-07-02 | URSA01 | FBK → FBK | Jul 2, 21:55 UTC | Jul 2, 22:05 UTC | 10m |
| 2026-07-01 | URSA10 | FBK → FBK | Jul 1, 22:45 UTC | Jul 1, 23:05 UTC | 20m |
| 2026-07-01 | URSA10 | FBK → FBK | Jul 1, 18:15 UTC | Jul 1, 22:40 UTC | 4h 25m |
| 2026-06-30 | URSA06 | - | Jun 30, 20:00 UTC | Jun 30, 20:30 UTC | 30m |
| 2026-06-30 | URSA06 | - | Jun 30, 18:10 UTC | Jun 30, 19:00 UTC | 50m |
| 2026-06-30 | URSA06 | FBK → FBK | Jun 30, 17:45 UTC | Jun 30, 18:05 UTC | 20m |
| 2026-06-26 | URSA10 | - | Jun 26, 20:10 UTC | Jun 26, 21:20 UTC | 1h 10m |
| 2026-06-26 | URSA10 | - | Jun 26, 17:50 UTC | Jun 26, 19:50 UTC | 2h 0m |
| 2026-06-25 | URSA01 | - | Jun 25, 22:20 UTC | Jun 25, 23:30 UTC | 1h 10m |
| 2026-06-25 | URSA01 | - | Jun 25, 21:40 UTC | Jun 25, 22:14 UTC | 35m |
| 2026-06-25 | URSA01 | FBK → FBK | Jun 25, 19:34 UTC | Jun 25, 21:35 UTC | 2h 0m |
| 2026-06-25 | URSA87 | - | Jun 25, 01:54 UTC | Jun 25, 02:19 UTC | 25m |
| 2026-06-24 | URSA87 | - | Jun 24, 23:34 UTC | Jun 25, 00:14 UTC | 40m |
| 2026-06-24 | URSA87 | - | Jun 24, 20:24 UTC | Jun 24, 22:29 UTC | 2h 5m |
| 2026-06-23 | URSA19 | - | Jun 23, 19:10 UTC | Jun 23, 19:55 UTC | 45m |
| 2026-06-23 | URSA19 | - | Jun 23, 16:09 UTC | Jun 23, 16:29 UTC | 20m |
| 2026-06-22 | URSA87 | - | Jun 22, 22:19 UTC | Jun 23, 00:09 UTC | 1h 50m |
| 2026-06-22 | URSA87 | - | Jun 22, 20:14 UTC | Jun 22, 21:30 UTC | 1h 15m |
| 2026-06-22 | URSA87 | FBK → FBK | Jun 22, 19:44 UTC | Jun 22, 20:00 UTC | 15m |
| 2026-06-16 | URSA23 | - | Jun 16, 21:10 UTC | Jun 16, 23:15 UTC | 2h 5m |
| 2026-06-16 | URSA23 | - | Jun 16, 19:25 UTC | Jun 16, 19:40 UTC | 15m |
| 2026-06-12 | URSA01 | - | Jun 12, 20:55 UTC | Jun 12, 21:10 UTC | 15m |
| 2026-06-12 | URSA01 | - | Jun 12, 19:55 UTC | Jun 12, 20:05 UTC | 10m |
| 2026-06-12 | URSA01 | FBK → FBK | Jun 12, 19:30 UTC | Jun 12, 19:50 UTC | 20m |
| 2026-06-12 | URSA01 | - | Jun 12, 19:05 UTC | Jun 12, 19:25 UTC | 20m |
| 2026-06-12 | URSA01 | FBK → FBK | Jun 12, 18:45 UTC | Jun 12, 18:50 UTC | 5m |
| 2026-06-11 | URSA75 | - | Jun 11, 22:05 UTC | Jun 11, 22:40 UTC | 35m |
| 2026-06-11 | URSA75 | - | Jun 11, 18:35 UTC | Jun 11, 19:05 UTC | 30m |
| 2026-06-11 | URSA75 | FBK → FBK | Jun 11, 18:05 UTC | Jun 11, 18:10 UTC | 5m |
| 2026-06-09 | URSA98 | - | Jun 9, 00:30 UTC | Jun 9, 01:05 UTC | 35m |
| 2026-06-08 | URSA98 | - | Jun 8, 20:00 UTC | Jun 8, 20:35 UTC | 35m |
| 2026-06-08 | URSA98 | FBK → FBK | Jun 8, 19:45 UTC | Jun 8, 19:50 UTC | 5m |
| 2026-06-08 | URSA98 | FBK → FBK | Jun 8, 18:25 UTC | Jun 8, 18:50 UTC | 25m |
| 2026-06-08 | URSA98 | FBK → FBK | Jun 8, 18:00 UTC | Jun 8, 18:05 UTC | 5m |
| 2026-06-01 | URSA19 | - | Jun 1, 22:45 UTC | Jun 1, 23:30 UTC | 45m |
| 2026-05-28 | URSA26 | - | May 28, 20:30 UTC | May 28, 21:15 UTC | 45m |
| 2026-05-28 | URSA26 | - | May 28, 19:50 UTC | May 28, 20:15 UTC | 25m |
| 2026-05-20 | URSA05 | - | May 20, 23:45 UTC | May 21, 00:45 UTC | 1h 0m |
| 2026-05-20 | URSA05 | - | May 20, 18:25 UTC | May 20, 20:10 UTC | 1h 45m |
| 2026-05-20 | URSA05 | FBK → FBK | May 20, 17:45 UTC | May 20, 17:50 UTC | 5m |
| 2026-05-18 | URSA19 | - | May 18, 21:20 UTC | May 18, 23:00 UTC | 1h 40m |
| 2026-05-18 | URSA19 | - | May 18, 19:35 UTC | May 18, 20:25 UTC | 50m |
| 2026-05-18 | URSA19 | FBK → FBK | May 18, 19:00 UTC | May 18, 19:10 UTC | 10m |
| 2026-05-15 | URSA22 | FBK → FBK | May 15, 18:55 UTC | May 15, 20:50 UTC | 1h 55m |
| 2026-05-14 | URSA19 | - | May 14, 18:20 UTC | May 14, 19:20 UTC | 1h 0m |
| 2026-05-13 | URSA06 | - | May 13, 07:05 UTC | May 13, 08:05 UTC | 1h 0m |
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 16-08224 page for operator, model, and routing details .