sensors Mode-S transponder
ACC147
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N9205X · PIPER PA-28-140/150/160/180 · operated by ORMOND AIRCRAFT LEASING & MANAGEMENT INC
- Hex
- ACC147
- Octal
- 53140507
- Decimal
- 11,321,671
- Country
- US
- Tail
- N9205X
- Type
- P28A
- Flights observed
- 37
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- Jul 25, 15:25 UTC
Last known position
Country allocation
The ICAO 24-bit address ACC147 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 |
|---|---|---|---|
| N9205X | - | 37 | 2026-07-25 |
Recent flights last 37
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | N9205X | - | Jul 25, 14:45 UTC | Jul 25, 15:25 UTC | 40m |
| 2026-07-24 | N9205X | - | Jul 24, 12:15 UTC | Jul 24, 13:30 UTC | 1h 15m |
| 2026-07-24 | N9205X | - | Jul 24, 01:20 UTC | Jul 24, 03:40 UTC | 2h 20m |
| 2026-07-23 | N9205X | - | Jul 23, 22:25 UTC | Jul 24, 00:35 UTC | 2h 10m |
| 2026-07-22 | N9205X | - | Jul 22, 14:15 UTC | Jul 22, 15:35 UTC | 1h 20m |
| 2026-07-18 | N9205X | - | Jul 18, 12:05 UTC | Jul 18, 12:40 UTC | 35m |
| 2026-07-14 | N9205X | - | Jul 14, 22:55 UTC | Jul 15, 02:45 UTC | 3h 50m |
| 2026-07-13 | N9205X | - | Jul 13, 11:40 UTC | Jul 13, 13:10 UTC | 1h 30m |
| 2026-07-11 | N9205X | - | Jul 11, 12:00 UTC | Jul 11, 13:30 UTC | 1h 30m |
| 2026-07-10 | N9205X | - | Jul 10, 14:30 UTC | Jul 10, 15:10 UTC | 40m |
| 2026-07-07 | N9205X | - | Jul 7, 15:45 UTC | Jul 7, 16:45 UTC | 1h 0m |
| 2026-07-07 | N9205X | - | Jul 7, 13:15 UTC | Jul 7, 14:05 UTC | 50m |
| 2026-07-03 | N9205X | - | Jul 3, 17:05 UTC | Jul 3, 17:20 UTC | 15m |
| 2026-07-03 | N9205X | - | Jul 3, 12:50 UTC | Jul 3, 13:30 UTC | 40m |
| 2026-07-02 | N9205X | - | Jul 2, 11:35 UTC | Jul 2, 12:20 UTC | 45m |
| 2026-06-30 | N9205X | - | Jun 30, 14:10 UTC | Jun 30, 14:45 UTC | 35m |
| 2026-06-24 | N9205X | - | Jun 24, 14:04 UTC | Jun 24, 14:39 UTC | 35m |
| 2026-06-22 | N9205X | - | Jun 22, 17:34 UTC | Jun 22, 18:49 UTC | 1h 15m |
| 2026-06-22 | N9205X | - | Jun 22, 12:05 UTC | Jun 22, 13:05 UTC | 1h 0m |
| 2026-05-26 | N9205X | - | May 26, 12:35 UTC | May 26, 12:54 UTC | 20m |
| 2026-05-26 | N9205X | - | May 26, 11:39 UTC | May 26, 12:05 UTC | 25m |
| 2026-05-20 | N9205X | - | May 20, 11:45 UTC | May 20, 12:55 UTC | 1h 10m |
| 2026-05-15 | N9205X | - | May 15, 14:20 UTC | May 15, 15:50 UTC | 1h 29m |
| 2026-05-14 | N9205X | - | May 14, 17:10 UTC | May 14, 18:15 UTC | 1h 5m |
| 2026-05-08 | N9205X | - | May 8, 12:55 UTC | May 8, 13:10 UTC | 15m |
| 2026-05-08 | N9205X | - | May 8, 12:00 UTC | May 8, 12:34 UTC | 35m |
| 2026-05-06 | N9205X | - | May 6, 21:50 UTC | May 6, 22:15 UTC | 25m |
| 2026-05-06 | N9205X | - | May 6, 20:40 UTC | May 6, 20:55 UTC | 15m |
| 2026-05-06 | N9205X | - | May 6, 16:50 UTC | May 6, 17:10 UTC | 20m |
| 2026-05-02 | N9205X | - | May 2, 14:20 UTC | May 2, 14:50 UTC | 30m |
| 2026-04-30 | N9205X | - | Apr 30, 11:40 UTC | Apr 30, 12:20 UTC | 40m |
| 2026-04-28 | N9205X | - | Apr 28, 20:00 UTC | Apr 28, 20:35 UTC | 35m |
| 2026-04-28 | N9205X | - | Apr 28, 19:25 UTC | Apr 28, 19:50 UTC | 25m |
| 2026-04-26 | N9205X | - | Apr 26, 12:10 UTC | Apr 26, 13:05 UTC | 55m |
| 2026-04-26 | N9205X | - | Apr 26, 11:50 UTC | Apr 26, 12:05 UTC | 15m |
| 2026-04-24 | N9205X | - | Apr 24, 15:50 UTC | Apr 24, 16:05 UTC | 15m |
| 2026-04-24 | N9205X | - | Apr 24, 14:40 UTC | Apr 24, 15:20 UTC | 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 N9205X page for operator, model, and routing details .