sensors Mode-S transponder
ACDEC7
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N9284A · PIPER PA-28-140/150/160/180 · operated by HIRL CHRISTOPHER T, HIRL VERONICA B
- Hex
- ACDEC7
- Octal
- 53157307
- Decimal
- 11,329,223
- Country
- US
- Tail
- N9284A
- Type
- P28A
- Flights observed
- 48
- Distinct callsigns
- 2
- Country
- US
- Last broadcast
- 19d ago
Last known position
Country allocation
The ICAO 24-bit address ACDEC7 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 2 distinct
Recent flights last 48
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-16 | N9284A | - | Jul 16, 19:10 UTC | Jul 16, 20:25 UTC | 1h 15m |
| 2026-07-14 | N9284A | - | Jul 14, 15:15 UTC | Jul 14, 16:25 UTC | 1h 10m |
| 2026-07-14 | N9284A | - | Jul 14, 00:10 UTC | Jul 14, 01:20 UTC | 1h 10m |
| 2026-07-13 | N9284A | - | Jul 13, 22:20 UTC | Jul 13, 22:55 UTC | 35m |
| 2026-07-09 | N9284A | - | Jul 9, 15:30 UTC | Jul 9, 16:50 UTC | 1h 20m |
| 2026-07-08 | N9284A | - | Jul 8, 21:15 UTC | Jul 8, 23:25 UTC | 2h 10m |
| 2026-07-08 | NGF1090 | - | Jul 8, 18:00 UTC | Jul 8, 18:25 UTC | 25m |
| 2026-07-08 | NGF1090 | - | Jul 8, 16:45 UTC | Jul 8, 17:30 UTC | 45m |
| 2026-07-08 | NGF1090 | - | Jul 8, 15:45 UTC | Jul 8, 16:15 UTC | 30m |
| 2026-07-08 | NGF1090 | - | Jul 8, 11:30 UTC | Jul 8, 14:05 UTC | 2h 35m |
| 2026-06-28 | N9284A | - | Jun 28, 17:34 UTC | Jun 28, 18:29 UTC | 55m |
| 2026-06-26 | N9284A | - | Jun 26, 00:20 UTC | Jun 26, 00:35 UTC | 15m |
| 2026-06-25 | N9284A | EWB → SFZ | Jun 25, 20:09 UTC | Jun 25, 20:34 UTC | 25m |
| 2026-06-25 | N9284A | - | Jun 25, 17:39 UTC | Jun 25, 18:04 UTC | 25m |
| 2026-06-25 | N9284A | - | Jun 25, 14:50 UTC | Jun 25, 15:04 UTC | 15m |
| 2026-06-24 | N9284A | - | Jun 24, 21:19 UTC | Jun 24, 22:25 UTC | 1h 5m |
| 2026-06-24 | N9284A | - | Jun 24, 19:10 UTC | Jun 24, 20:14 UTC | 1h 5m |
| 2026-06-24 | NGF1090 | - | Jun 24, 15:24 UTC | Jun 24, 17:50 UTC | 2h 25m |
| 2026-06-24 | NGF1090 | - | Jun 24, 14:00 UTC | Jun 24, 14:09 UTC | 10m |
| 2026-06-21 | N9284A | - | Jun 21, 20:14 UTC | Jun 21, 20:29 UTC | 15m |
| 2026-06-21 | N9284A | - | Jun 21, 15:15 UTC | Jun 21, 16:10 UTC | 55m |
| 2026-06-20 | N9284A | - | Jun 20, 00:34 UTC | Jun 20, 01:34 UTC | 1h 0m |
| 2026-06-19 | N9284A | - | Jun 19, 14:34 UTC | Jun 19, 15:29 UTC | 55m |
| 2026-06-16 | N9284A | - | Jun 16, 12:20 UTC | Jun 16, 12:35 UTC | 15m |
| 2026-06-08 | N9284A | - | Jun 8, 20:55 UTC | Jun 8, 21:10 UTC | 15m |
| 2026-06-08 | N9284A | - | Jun 8, 17:00 UTC | Jun 8, 18:00 UTC | 1h 0m |
| 2026-05-26 | N9284A | - | May 26, 18:19 UTC | May 26, 19:34 UTC | 1h 15m |
| 2026-05-26 | N9284A | - | May 26, 15:05 UTC | May 26, 15:24 UTC | 20m |
| 2026-05-22 | N9284A | - | May 22, 22:25 UTC | May 22, 23:10 UTC | 45m |
| 2026-05-22 | N9284A | - | May 22, 17:50 UTC | May 22, 18:30 UTC | 40m |
| 2026-05-22 | N9284A | - | May 22, 15:50 UTC | May 22, 16:30 UTC | 40m |
| 2026-05-21 | N9284A | - | May 21, 11:40 UTC | May 21, 12:30 UTC | 50m |
| 2026-04-28 | N9284A | - | Apr 28, 00:20 UTC | Apr 28, 01:05 UTC | 45m |
| 2026-04-27 | N9284A | - | Apr 27, 21:00 UTC | Apr 27, 21:10 UTC | 10m |
| 2026-04-25 | N9284A | - | Apr 25, 18:40 UTC | Apr 25, 20:00 UTC | 1h 20m |
| 2026-04-25 | N9284A | - | Apr 25, 15:05 UTC | Apr 25, 16:20 UTC | 1h 15m |
| 2026-04-23 | N9284A | - | Apr 23, 23:45 UTC | Apr 24, 00:00 UTC | 15m |
| 2026-04-23 | N9284A | - | Apr 23, 21:00 UTC | Apr 23, 21:25 UTC | 25m |
| 2026-04-23 | N9284A | - | Apr 23, 18:00 UTC | Apr 23, 18:10 UTC | 10m |
| 2026-04-17 | N9284A | - | Apr 17, 16:35 UTC | Apr 17, 17:10 UTC | 35m |
| 2026-04-15 | N9284A | - | Apr 15, 19:15 UTC | Apr 15, 20:10 UTC | 55m |
| 2026-04-15 | NGF1090 | - | Apr 15, 17:05 UTC | Apr 15, 18:35 UTC | 1h 30m |
| 2026-04-15 | NGF1090 | - | Apr 15, 13:01 UTC | Apr 15, 14:55 UTC | 1h 54m |
| 2026-04-14 | N9284A | - | Apr 14, 23:20 UTC | Apr 14, 23:45 UTC | 25m |
| 2026-04-14 | N9284A | - | Apr 14, 22:40 UTC | Apr 14, 22:50 UTC | 10m |
| 2026-04-13 | N9284A | - | Apr 13, 21:30 UTC | Apr 13, 21:45 UTC | 15m |
| 2026-04-13 | N9284A | - | Apr 13, 20:00 UTC | Apr 13, 20:20 UTC | 20m |
| 2026-04-12 | N9284A | - | Apr 12, 17:15 UTC | Apr 12, 18:25 UTC | 1h 10m |
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 N9284A page for operator, model, and routing details .