sensors Mode-S transponder
AE4EAF
ICAO 24-bit transponder address
Currently assigned to 166197 · Raytheon T-6B Texan II
- Hex
- AE4EAF
- Octal
- 53447257
- Decimal
- 11,423,407
- Tail
- 166197
- Type
- TEX2
- Flights observed
- 95
- Distinct callsigns
- 12
- Country
- -
- Last broadcast
- 23d ago
Last known position
Callsign history 12 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SH197 | - | 36 | 2026-07-26 |
| RN197 | - | 24 | 2026-07-20 |
| BB197 | - | 24 | 2026-07-23 |
| RN197Z | - | 2 | 2026-07-08 |
| RN159 | - | 2 | 2026-05-12 |
| TXN197 | - | 1 | 2026-07-10 |
| TEXN21 | - | 1 | 2026-07-05 |
| SH197Z | - | 1 | 2026-06-10 |
| RN227 | - | 1 | 2026-06-01 |
| RN164 | - | 1 | 2026-07-21 |
| MX197 | Breeze Airways | 1 | 2026-05-11 |
| DOLLR13 | - | 1 | 2026-07-02 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | SH197 | - | Jul 26, 20:45 UTC | Jul 26, 21:45 UTC | 1h 0m |
| 2026-07-26 | SH197 | - | Jul 26, 16:55 UTC | Jul 26, 19:00 UTC | 2h 5m |
| 2026-07-24 | SH197 | - | Jul 24, 21:45 UTC | Jul 24, 23:15 UTC | 1h 30m |
| 2026-07-24 | SH197 | - | Jul 24, 18:10 UTC | Jul 24, 20:15 UTC | 2h 5m |
| 2026-07-24 | SH197 | - | Jul 24, 14:55 UTC | Jul 24, 16:15 UTC | 1h 20m |
| 2026-07-23 | SH197 | - | Jul 23, 17:15 UTC | Jul 23, 17:35 UTC | 20m |
| 2026-07-23 | SH197 | - | Jul 23, 13:00 UTC | Jul 23, 14:10 UTC | 1h 10m |
| 2026-07-23 | BB197 | - | Jul 23, 01:25 UTC | Jul 23, 02:20 UTC | 55m |
| 2026-07-22 | BB197 | - | Jul 22, 21:50 UTC | Jul 22, 23:05 UTC | 1h 15m |
| 2026-07-21 | RN164 | - | Jul 21, 17:15 UTC | Jul 21, 17:35 UTC | 20m |
| 2026-07-20 | RN197 | - | Jul 20, 20:20 UTC | Jul 20, 21:15 UTC | 55m |
| 2026-07-20 | RN197 | - | Jul 20, 15:30 UTC | Jul 20, 16:05 UTC | 35m |
| 2026-07-20 | RN197 | - | Jul 20, 12:20 UTC | Jul 20, 13:00 UTC | 40m |
| 2026-07-17 | RN197 | - | Jul 17, 20:00 UTC | Jul 17, 20:35 UTC | 35m |
| 2026-07-17 | RN197 | - | Jul 17, 17:30 UTC | Jul 17, 18:15 UTC | 45m |
| 2026-07-16 | RN197 | - | Jul 16, 23:05 UTC | Jul 17, 00:14 UTC | 1h 10m |
| 2026-07-16 | BB197 | - | Jul 16, 01:10 UTC | Jul 16, 02:15 UTC | 1h 5m |
| 2026-07-15 | BB197 | - | Jul 15, 21:20 UTC | Jul 15, 22:35 UTC | 1h 15m |
| 2026-07-15 | SH197 | - | Jul 15, 13:00 UTC | Jul 15, 13:25 UTC | 25m |
| 2026-07-15 | SH197 | - | Jul 15, 00:05 UTC | Jul 15, 01:10 UTC | 1h 5m |
| 2026-07-14 | SH197 | - | Jul 14, 20:50 UTC | Jul 14, 21:10 UTC | 20m |
| 2026-07-10 | SH197 | - | Jul 10, 17:05 UTC | Jul 10, 17:15 UTC | 10m |
| 2026-07-10 | SH197 | - | Jul 10, 14:05 UTC | Jul 10, 14:35 UTC | 30m |
| 2026-07-10 | TXN197 | - | Jul 10, 00:35 UTC | Jul 10, 02:05 UTC | 1h 30m |
| 2026-07-08 | RN197Z | - | Jul 8, 18:55 UTC | Jul 8, 19:10 UTC | 15m |
| 2026-07-07 | RN197 | - | Jul 7, 13:15 UTC | Jul 7, 13:45 UTC | 30m |
| 2026-07-05 | TEXN21 | - | Jul 5, 20:35 UTC | Jul 5, 21:10 UTC | 35m |
| 2026-07-02 | DOLLR13 | - | Jul 2, 18:25 UTC | Jul 2, 18:40 UTC | 15m |
| 2026-06-30 | SH197 | - | Jun 30, 16:35 UTC | Jun 30, 17:30 UTC | 55m |
| 2026-06-30 | BB197 | - | Jun 30, 00:55 UTC | Jun 30, 02:20 UTC | 1h 26m |
| 2026-06-29 | BB197 | - | Jun 29, 21:05 UTC | Jun 29, 22:24 UTC | 1h 20m |
| 2026-06-29 | RN197 | - | Jun 29, 16:25 UTC | Jun 29, 16:55 UTC | 30m |
| 2026-06-29 | RN197 | - | Jun 29, 13:30 UTC | Jun 29, 13:59 UTC | 30m |
| 2026-06-29 | SH197 | - | Jun 29, 01:10 UTC | Jun 29, 02:50 UTC | 1h 40m |
| 2026-06-28 | SH197 | - | Jun 28, 20:50 UTC | Jun 28, 22:20 UTC | 1h 30m |
| 2026-06-27 | SH197 | - | Jun 27, 19:05 UTC | Jun 27, 19:45 UTC | 40m |
| 2026-06-27 | SH197 | - | Jun 27, 15:45 UTC | Jun 27, 16:24 UTC | 40m |
| 2026-06-26 | SH197 | - | Jun 26, 20:50 UTC | Jun 26, 21:24 UTC | 35m |
| 2026-06-26 | SH197 | - | Jun 26, 17:15 UTC | Jun 26, 18:34 UTC | 1h 20m |
| 2026-06-26 | SH197 | - | Jun 26, 12:44 UTC | Jun 26, 13:30 UTC | 45m |
| 2026-06-23 | SH197 | - | Jun 23, 00:45 UTC | Jun 23, 02:20 UTC | 1h 35m |
| 2026-06-22 | SH197 | - | Jun 22, 21:19 UTC | Jun 22, 22:40 UTC | 1h 20m |
| 2026-06-22 | SH197 | - | Jun 22, 14:24 UTC | Jun 22, 15:14 UTC | 50m |
| 2026-06-20 | SH197 | - | Jun 20, 20:25 UTC | Jun 20, 21:34 UTC | 1h 10m |
| 2026-06-20 | SH197 | - | Jun 20, 16:55 UTC | Jun 20, 18:04 UTC | 1h 10m |
| 2026-06-17 | RN197 | - | Jun 17, 17:50 UTC | Jun 17, 18:20 UTC | 30m |
| 2026-06-16 | RN197 | - | Jun 16, 13:19 UTC | Jun 16, 13:34 UTC | 15m |
| 2026-06-15 | RN197 | - | Jun 15, 20:34 UTC | Jun 15, 22:00 UTC | 1h 25m |
| 2026-06-15 | RN197 | - | Jun 15, 16:49 UTC | Jun 15, 17:10 UTC | 20m |
| 2026-06-15 | RN197 | - | Jun 15, 12:55 UTC | Jun 15, 13:20 UTC | 25m |
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 166197 page for operator, model, and routing details .