sensors Mode-S transponder
AF2172
ICAO 24-bit transponder address
Currently assigned to 170750 · BEECH 200 Super King Air
- Hex
- AF2172
- Octal
- 53620562
- Decimal
- 11,477,362
- Tail
- 170750
- Type
- BE20
No current signal · last broadcast Jul 24, 23:00 UTC
- Flights observed
- 90
- Distinct callsigns
- 20
- Country
- -
- Last broadcast
- Jul 24, 23:00 UTC
Last known position
Callsign history 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| BGST416 | - | 12 | 2026-07-24 |
| STGRY43 | - | 10 | 2026-07-21 |
| BGST360 | - | 7 | 2026-07-18 |
| BGST415 | - | 5 | 2026-06-15 |
| BGST346 | - | 5 | 2026-06-24 |
| STGRY40 | - | 4 | 2026-07-14 |
| STGRY20 | - | 4 | 2026-07-21 |
| STGRY04 | - | 4 | 2026-07-09 |
| BGST02 | - | 4 | 2026-06-03 |
| STGRY37 | - | 3 | 2026-07-15 |
| STGRY35 | - | 3 | 2026-07-11 |
| BGST437 | - | 3 | 2026-07-08 |
| STGRY63 | - | 2 | 2026-07-15 |
| STGRY57 | - | 2 | 2026-07-23 |
| STGRY53 | - | 2 | 2026-07-09 |
| STGRY47 | - | 2 | 2026-05-28 |
| STGRY31 | - | 2 | 2026-06-11 |
| STGRY27 | - | 2 | 2026-05-29 |
| STGRY24 | - | 2 | 2026-06-10 |
| STGRY17 | - | 2 | 2026-06-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | BGST416 | - | Jul 24, 22:40 UTC | Jul 24, 23:00 UTC | 20m |
| 2026-07-24 | BGST416 | - | Jul 24, 21:00 UTC | Jul 24, 21:40 UTC | 40m |
| 2026-07-24 | BGST416 | - | Jul 24, 17:40 UTC | Jul 24, 18:40 UTC | 1h 0m |
| 2026-07-23 | STGRY57 | - | Jul 23, 02:25 UTC | Jul 23, 03:25 UTC | 1h 0m |
| 2026-07-22 | STGRY57 | - | Jul 22, 22:45 UTC | Jul 23, 00:30 UTC | 1h 45m |
| 2026-07-22 | STGRY42 | - | Jul 22, 01:30 UTC | Jul 22, 03:10 UTC | 1h 40m |
| 2026-07-21 | STGRY43 | - | Jul 21, 20:35 UTC | Jul 21, 23:40 UTC | 3h 5m |
| 2026-07-21 | STGRY43 | - | Jul 21, 17:30 UTC | Jul 21, 18:45 UTC | 1h 15m |
| 2026-07-21 | STGRY20 | - | Jul 21, 15:15 UTC | Jul 21, 17:00 UTC | 1h 45m |
| 2026-07-21 | STGRY20 | NGP → CLL | Jul 21, 12:15 UTC | Jul 21, 14:05 UTC | 1h 50m |
| 2026-07-20 | BGST416 | - | Jul 20, 23:55 UTC | Jul 21, 01:35 UTC | 1h 40m |
| 2026-07-20 | BGST416 | - | Jul 20, 21:35 UTC | Jul 20, 22:10 UTC | 35m |
| 2026-07-20 | BGST416 | - | Jul 20, 20:15 UTC | Jul 20, 20:35 UTC | 20m |
| 2026-07-18 | BGST360 | - | Jul 18, 18:15 UTC | Jul 18, 18:45 UTC | 30m |
| 2026-07-18 | BGST360 | - | Jul 18, 17:00 UTC | Jul 18, 17:30 UTC | 30m |
| 2026-07-18 | BGST360 | - | Jul 18, 14:40 UTC | Jul 18, 15:15 UTC | 35m |
| 2026-07-18 | BGST360 | - | Jul 18, 13:10 UTC | Jul 18, 14:00 UTC | 50m |
| 2026-07-16 | BGST360 | - | Jul 16, 20:29 UTC | Jul 16, 21:40 UTC | 1h 10m |
| 2026-07-15 | STGRY63 | - | Jul 15, 22:50 UTC | Jul 15, 23:45 UTC | 55m |
| 2026-07-15 | STGRY63 | - | Jul 15, 19:05 UTC | Jul 15, 19:35 UTC | 30m |
| 2026-07-15 | STGRY37 | - | Jul 15, 01:25 UTC | Jul 15, 03:10 UTC | 1h 45m |
| 2026-07-14 | STGRY37 | - | Jul 14, 21:55 UTC | Jul 14, 23:35 UTC | 1h 39m |
| 2026-07-14 | STGRY43 | - | Jul 14, 17:10 UTC | Jul 14, 18:50 UTC | 1h 40m |
| 2026-07-14 | STGRY43 | - | Jul 14, 15:05 UTC | Jul 14, 15:15 UTC | 10m |
| 2026-07-14 | STGRY43 | - | Jul 14, 13:25 UTC | Jul 14, 14:00 UTC | 35m |
| 2026-07-14 | STGRY40 | - | Jul 14, 00:20 UTC | Jul 14, 00:50 UTC | 30m |
| 2026-07-13 | STGRY40 | - | Jul 13, 20:00 UTC | Jul 13, 21:25 UTC | 1h 25m |
| 2026-07-11 | BGST416 | - | Jul 11, 17:30 UTC | Jul 11, 19:15 UTC | 1h 45m |
| 2026-07-11 | BGST416 | - | Jul 11, 14:10 UTC | Jul 11, 16:00 UTC | 1h 50m |
| 2026-07-11 | STGRY35 | - | Jul 11, 01:40 UTC | Jul 11, 03:15 UTC | 1h 35m |
| 2026-07-10 | STGRY35 | - | Jul 10, 23:25 UTC | Jul 10, 23:45 UTC | 20m |
| 2026-07-10 | STGRY35 | - | Jul 10, 21:50 UTC | Jul 10, 22:55 UTC | 1h 5m |
| 2026-07-10 | STGRY54 | - | Jul 10, 15:05 UTC | Jul 10, 19:05 UTC | 4h 0m |
| 2026-07-09 | STGRY53 | - | Jul 9, 23:45 UTC | Jul 10, 00:45 UTC | 1h 0m |
| 2026-07-09 | STGRY53 | - | Jul 9, 19:50 UTC | Jul 9, 20:55 UTC | 1h 5m |
| 2026-07-09 | STGRY04 | - | Jul 9, 18:10 UTC | Jul 9, 19:20 UTC | 1h 10m |
| 2026-07-09 | STGRY04 | - | Jul 9, 14:45 UTC | Jul 9, 16:50 UTC | 2h 5m |
| 2026-07-08 | BGST437 | - | Jul 8, 18:50 UTC | Jul 8, 20:55 UTC | 2h 5m |
| 2026-07-08 | BGST437 | - | Jul 8, 14:10 UTC | Jul 8, 16:30 UTC | 2h 20m |
| 2026-06-24 | BGST346 | - | Jun 24, 17:40 UTC | Jun 24, 19:04 UTC | 1h 25m |
| 2026-06-24 | BGST346 | - | Jun 24, 12:40 UTC | Jun 24, 14:24 UTC | 1h 45m |
| 2026-06-23 | STGRY17 | - | Jun 23, 01:10 UTC | Jun 23, 02:40 UTC | 1h 30m |
| 2026-06-22 | STGRY40 | - | Jun 22, 23:05 UTC | Jun 23, 00:35 UTC | 1h 30m |
| 2026-06-22 | STGRY40 | - | Jun 22, 20:04 UTC | Jun 22, 21:05 UTC | 1h 0m |
| 2026-06-22 | STGRY04 | - | Jun 22, 16:14 UTC | Jun 22, 17:44 UTC | 1h 30m |
| 2026-06-22 | STGRY04 | - | Jun 22, 12:54 UTC | Jun 22, 13:49 UTC | 55m |
| 2026-06-18 | STGRY17 | - | Jun 18, 22:40 UTC | Jun 19, 01:45 UTC | 3h 4m |
| 2026-06-18 | STGRY20 | - | Jun 18, 21:25 UTC | Jun 18, 21:45 UTC | 20m |
| 2026-06-18 | STGRY20 | - | Jun 18, 19:40 UTC | Jun 18, 20:05 UTC | 25m |
| 2026-06-18 | STGRY43 | - | Jun 18, 16:05 UTC | Jun 18, 18:45 UTC | 2h 40m |
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 170750 page for operator, model, and routing details .
Mode-S AF2172 frequently asked
What is Mode-S code AF2172?
AF2172 is an ICAO 24-bit transponder address. Assigned to 170750.
Is AF2172 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AF2172, octal 53620562, decimal 11,477,362.