sensors Mode-S transponder
AF8437
ICAO 24-bit transponder address
Currently assigned to 170754 · BEECH 200 Super King Air
- Hex
- AF8437
- Octal
- 53702067
- Decimal
- 11,502,647
- Tail
- 170754
- Type
- BE20
- Flights observed
- 62
- Distinct callsigns
- 19
- Country
- -
- Last broadcast
- 2h ago
Current position
Callsign history 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| BGST416 | - | 10 | 2026-05-07 |
| STGRY64 | - | 6 | 2026-05-06 |
| STGRY07 | - | 5 | 2026-05-09 |
| BGST464 | - | 5 | 2026-04-14 |
| STGRY47 | - | 4 | 2026-05-31 |
| STGRY30 | - | 4 | 2026-05-17 |
| STGRY44 | - | 3 | 2026-04-15 |
| STGRY43 | - | 3 | 2026-05-12 |
| STGRY17 | - | 3 | 2026-05-15 |
| BGST360 | - | 3 | 2026-05-18 |
| STGRY57 | - | 2 | 2026-04-13 |
| STGRY56 | - | 2 | 2026-06-02 |
| STGRY50 | - | 2 | 2026-05-01 |
| STGRY40 | - | 2 | 2026-05-05 |
| STGRY02 | - | 2 | 2026-04-16 |
| BGST415 | - | 2 | 2026-04-30 |
| BGST335 | - | 2 | 2026-05-05 |
| STGRY42 | - | 1 | 2026-05-19 |
| BGST437 | - | 1 | 2026-04-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | STGRY56 | - | Jun 2, 17:30 UTC | Jun 2, 18:55 UTC | 1h 25m |
| 2026-06-02 | STGRY56 | - | Jun 2, 14:55 UTC | Jun 2, 16:45 UTC | 1h 50m |
| 2026-05-31 | STGRY47 | - | May 31, 17:45 UTC | May 31, 21:05 UTC | 3h 20m |
| 2026-05-31 | STGRY47 | - | May 31, 12:25 UTC | May 31, 15:15 UTC | 2h 50m |
| 2026-05-29 | STGRY47 | - | May 29, 19:25 UTC | May 29, 20:30 UTC | 1h 5m |
| 2026-05-29 | STGRY47 | - | May 29, 14:35 UTC | May 29, 18:20 UTC | 3h 45m |
| 2026-05-19 | STGRY42 | - | May 19, 00:40 UTC | May 19, 02:35 UTC | 1h 55m |
| 2026-05-18 | BGST360 | - | May 18, 20:45 UTC | May 18, 21:00 UTC | 15m |
| 2026-05-18 | BGST360 | - | May 18, 18:50 UTC | May 18, 19:50 UTC | 1h 0m |
| 2026-05-18 | BGST360 | - | May 18, 15:05 UTC | May 18, 16:00 UTC | 55m |
| 2026-05-17 | STGRY30 | - | May 17, 16:01 UTC | May 17, 19:01 UTC | 3h 0m |
| 2026-05-17 | STGRY30 | - | May 17, 12:20 UTC | May 17, 14:01 UTC | 1h 40m |
| 2026-05-15 | STGRY30 | - | May 15, 20:50 UTC | May 15, 21:40 UTC | 50m |
| 2026-05-15 | STGRY30 | - | May 15, 16:00 UTC | May 15, 19:30 UTC | 3h 30m |
| 2026-05-15 | STGRY17 | - | May 15, 01:15 UTC | May 15, 03:10 UTC | 1h 55m |
| 2026-05-14 | STGRY17 | - | May 14, 22:55 UTC | May 14, 23:25 UTC | 30m |
| 2026-05-14 | STGRY17 | - | May 14, 21:35 UTC | May 14, 22:05 UTC | 30m |
| 2026-05-12 | STGRY43 | - | May 12, 19:40 UTC | May 12, 21:40 UTC | 2h 0m |
| 2026-05-12 | STGRY43 | - | May 12, 17:20 UTC | May 12, 18:05 UTC | 45m |
| 2026-05-12 | STGRY43 | - | May 12, 16:10 UTC | May 12, 16:30 UTC | 20m |
| 2026-05-09 | STGRY07 | - | May 9, 21:50 UTC | May 9, 22:25 UTC | 35m |
| 2026-05-09 | STGRY07 | - | May 9, 19:35 UTC | May 9, 20:20 UTC | 45m |
| 2026-05-09 | STGRY07 | - | May 9, 18:15 UTC | May 9, 18:25 UTC | 10m |
| 2026-05-07 | BGST416 | - | May 7, 19:15 UTC | May 7, 19:55 UTC | 40m |
| 2026-05-07 | BGST416 | - | May 7, 17:45 UTC | May 7, 18:15 UTC | 30m |
| 2026-05-06 | STGRY64 | - | May 6, 13:45 UTC | May 6, 14:20 UTC | 35m |
| 2026-05-06 | STGRY64 | - | May 6, 12:15 UTC | May 6, 12:45 UTC | 30m |
| 2026-05-05 | BGST335 | - | May 5, 19:35 UTC | May 5, 21:40 UTC | 2h 5m |
| 2026-05-05 | BGST335 | - | May 5, 16:06 UTC | May 5, 17:00 UTC | 55m |
| 2026-05-05 | STGRY40 | - | May 5, 02:01 UTC | May 5, 02:40 UTC | 40m |
| 2026-05-05 | STGRY40 | - | May 5, 00:50 UTC | May 5, 01:15 UTC | 25m |
| 2026-05-01 | STGRY50 | - | May 1, 15:35 UTC | May 1, 17:05 UTC | 1h 30m |
| 2026-05-01 | STGRY50 | - | May 1, 12:50 UTC | May 1, 14:05 UTC | 1h 15m |
| 2026-04-30 | BGST415 | - | Apr 30, 18:35 UTC | Apr 30, 21:10 UTC | 2h 35m |
| 2026-04-30 | BGST415 | - | Apr 30, 14:20 UTC | Apr 30, 16:55 UTC | 2h 35m |
| 2026-04-29 | STGRY07 | - | Apr 29, 18:25 UTC | Apr 29, 20:00 UTC | 1h 35m |
| 2026-04-29 | STGRY07 | - | Apr 29, 14:50 UTC | Apr 29, 16:05 UTC | 1h 15m |
| 2026-04-28 | BGST416 | - | Apr 28, 22:45 UTC | Apr 28, 23:00 UTC | 15m |
| 2026-04-28 | BGST416 | - | Apr 28, 21:15 UTC | Apr 28, 21:40 UTC | 25m |
| 2026-04-28 | BGST416 | - | Apr 28, 17:20 UTC | Apr 28, 19:15 UTC | 1h 55m |
| 2026-04-27 | BGST437 | - | Apr 27, 15:40 UTC | Apr 27, 15:50 UTC | 10m |
| 2026-04-17 | STGRY64 | - | Apr 17, 03:20 UTC | Apr 17, 03:35 UTC | 15m |
| 2026-04-17 | STGRY64 | - | Apr 17, 01:45 UTC | Apr 17, 03:15 UTC | 1h 30m |
| 2026-04-16 | STGRY64 | - | Apr 16, 23:20 UTC | Apr 17, 00:35 UTC | 1h 15m |
| 2026-04-16 | STGRY64 | - | Apr 16, 22:40 UTC | Apr 16, 23:10 UTC | 30m |
| 2026-04-16 | STGRY02 | - | Apr 16, 17:15 UTC | Apr 16, 17:54 UTC | 40m |
| 2026-04-16 | STGRY02 | - | Apr 16, 15:45 UTC | Apr 16, 17:10 UTC | 1h 25m |
| 2026-04-16 | BGST416 | - | Apr 16, 01:45 UTC | Apr 16, 02:00 UTC | 15m |
| 2026-04-16 | BGST416 | - | Apr 16, 00:20 UTC | Apr 16, 00:50 UTC | 30m |
| 2026-04-15 | BGST416 | - | Apr 15, 22:05 UTC | Apr 15, 22:35 UTC | 30m |
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 170754 page for operator, model, and routing details .