sensors Mode-S transponder
A9EA7D
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N738TS · SOCATA TBM-700A/B/C · operated by THREE SISTERS AVIATION LLC
- Hex
- A9EA7D
- Octal
- 52365175
- Decimal
- 11,135,613
- Country
- US
- Tail
- N738TS
- Type
- TBM7
- Flights observed
- 42
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 4d ago
Last known position
Country allocation
The ICAO 24-bit address A9EA7D falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.
Callsign history 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| N738TS | - | 42 | 2026-07-25 |
Recent flights last 42
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | N738TS | - | Jul 25, 19:15 UTC | Jul 25, 22:45 UTC | 3h 30m |
| 2026-07-25 | N738TS | - | Jul 25, 13:35 UTC | Jul 25, 17:00 UTC | 3h 25m |
| 2026-07-19 | N738TS | - | Jul 19, 14:15 UTC | Jul 19, 16:40 UTC | 2h 25m |
| 2026-07-18 | N738TS | BFI → LNK | Jul 18, 17:25 UTC | Jul 18, 21:15 UTC | 3h 50m |
| 2026-07-18 | N738TS | - | Jul 18, 15:30 UTC | Jul 18, 16:30 UTC | 1h 0m |
| 2026-07-17 | N738TS | - | Jul 17, 18:50 UTC | Jul 17, 21:44 UTC | 2h 55m |
| 2026-07-13 | N738TS | - | Jul 13, 18:50 UTC | Jul 13, 20:20 UTC | 1h 30m |
| 2026-07-13 | N738TS | - | Jul 13, 17:05 UTC | Jul 13, 17:20 UTC | 15m |
| 2026-07-08 | N738TS | - | Jul 8, 22:05 UTC | Jul 9, 00:20 UTC | 2h 15m |
| 2026-07-07 | N738TS | - | Jul 7, 14:45 UTC | Jul 7, 16:55 UTC | 2h 10m |
| 2026-06-30 | N738TS | - | Jun 30, 21:20 UTC | Jun 30, 22:05 UTC | 45m |
| 2026-06-30 | N738TS | - | Jun 30, 17:00 UTC | Jun 30, 18:10 UTC | 1h 10m |
| 2026-06-27 | N738TS | - | Jun 27, 01:39 UTC | Jun 27, 02:29 UTC | 50m |
| 2026-06-26 | N738TS | - | Jun 26, 21:20 UTC | Jun 26, 22:25 UTC | 1h 5m |
| 2026-06-25 | N738TS | - | Jun 25, 19:44 UTC | Jun 25, 21:10 UTC | 1h 25m |
| 2026-06-24 | N738TS | - | Jun 24, 19:39 UTC | Jun 24, 21:44 UTC | 2h 5m |
| 2026-06-21 | N738TS | - | Jun 21, 19:45 UTC | Jun 21, 20:45 UTC | 1h 0m |
| 2026-06-19 | N738TS | - | Jun 19, 02:59 UTC | Jun 19, 03:49 UTC | 50m |
| 2026-06-18 | N738TS | - | Jun 18, 22:45 UTC | Jun 18, 23:35 UTC | 50m |
| 2026-06-13 | N738TS | - | Jun 13, 20:30 UTC | Jun 13, 21:35 UTC | 1h 5m |
| 2026-06-11 | N738TS | - | Jun 11, 23:15 UTC | Jun 12, 00:15 UTC | 1h 0m |
| 2026-06-07 | N738TS | - | Jun 7, 18:10 UTC | Jun 7, 20:45 UTC | 2h 35m |
| 2026-06-07 | N738TS | - | Jun 7, 00:10 UTC | Jun 7, 00:25 UTC | 15m |
| 2026-06-03 | N738TS | - | Jun 3, 22:05 UTC | Jun 3, 23:10 UTC | 1h 5m |
| 2026-06-03 | N738TS | - | Jun 3, 20:45 UTC | Jun 3, 21:05 UTC | 20m |
| 2026-05-31 | N738TS | - | May 31, 18:35 UTC | May 31, 19:45 UTC | 1h 10m |
| 2026-05-31 | N738TS | - | May 31, 16:55 UTC | May 31, 17:35 UTC | 40m |
| 2026-05-31 | N738TS | - | May 31, 14:45 UTC | May 31, 15:25 UTC | 40m |
| 2026-05-28 | N738TS | - | May 28, 17:25 UTC | May 28, 21:00 UTC | 3h 35m |
| 2026-05-28 | N738TS | - | May 28, 16:35 UTC | May 28, 16:45 UTC | 10m |
| 2026-05-22 | N738TS | - | May 22, 21:10 UTC | May 22, 22:05 UTC | 55m |
| 2026-05-20 | N738TS | - | May 20, 21:10 UTC | May 20, 22:15 UTC | 1h 5m |
| 2026-05-17 | N738TS | - | May 17, 20:25 UTC | May 17, 20:35 UTC | 10m |
| 2026-05-17 | N738TS | - | May 17, 17:30 UTC | May 17, 19:30 UTC | 2h 0m |
| 2026-05-17 | N738TS | - | May 17, 03:45 UTC | May 17, 04:05 UTC | 20m |
| 2026-05-17 | N738TS | - | May 17, 02:25 UTC | May 17, 03:00 UTC | 35m |
| 2026-05-14 | N738TS | - | May 14, 18:40 UTC | May 14, 20:20 UTC | 1h 40m |
| 2026-05-11 | N738TS | - | May 11, 13:55 UTC | May 11, 16:30 UTC | 2h 35m |
| 2026-05-10 | N738TS | - | May 10, 17:30 UTC | May 10, 20:00 UTC | 2h 30m |
| 2026-05-10 | N738TS | - | May 10, 15:29 UTC | May 10, 16:55 UTC | 1h 25m |
| 2026-05-06 | N738TS | - | May 6, 21:10 UTC | May 6, 22:45 UTC | 1h 35m |
| 2026-05-06 | N738TS | - | May 6, 18:40 UTC | May 6, 20:05 UTC | 1h 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 N738TS page for operator, model, and routing details .