sensors Mode-S transponder
A1B2D6
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N2085V · PIPER PA-28-140/150/160/180 · operated by STEPHENSON GRANT BRIAN JAMES
- Hex
- A1B2D6
- Octal
- 50331326
- Decimal
- 10,597,078
- Country
- US
- Tail
- N2085V
- Type
- P28A
- Flights observed
- 34
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- Jul 25, 17:35 UTC
Last known position
Country allocation
The ICAO 24-bit address A1B2D6 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 |
|---|---|---|---|
| N2085V | - | 34 | 2026-07-25 |
Recent flights last 34
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | N2085V | - | Jul 25, 17:20 UTC | Jul 25, 17:35 UTC | 15m |
| 2026-07-25 | N2085V | - | Jul 25, 16:30 UTC | Jul 25, 16:45 UTC | 15m |
| 2026-07-23 | N2085V | - | Jul 23, 16:05 UTC | Jul 23, 16:15 UTC | 10m |
| 2026-07-23 | N2085V | - | Jul 23, 14:35 UTC | Jul 23, 14:45 UTC | 10m |
| 2026-07-19 | N2085V | - | Jul 19, 17:20 UTC | Jul 19, 17:55 UTC | 35m |
| 2026-07-19 | N2085V | - | Jul 19, 13:30 UTC | Jul 19, 13:55 UTC | 25m |
| 2026-07-18 | N2085V | - | Jul 18, 20:35 UTC | Jul 18, 21:30 UTC | 55m |
| 2026-07-11 | N2085V | - | Jul 11, 19:05 UTC | Jul 11, 19:50 UTC | 45m |
| 2026-07-08 | N2085V | - | Jul 8, 18:50 UTC | Jul 8, 19:00 UTC | 10m |
| 2026-07-03 | N2085V | - | Jul 3, 14:25 UTC | Jul 3, 16:25 UTC | 2h 0m |
| 2026-06-30 | N2085V | - | Jun 30, 23:45 UTC | Jul 1, 00:05 UTC | 20m |
| 2026-06-30 | N2085V | - | Jun 30, 22:45 UTC | Jun 30, 23:10 UTC | 25m |
| 2026-06-30 | N2085V | - | Jun 30, 15:15 UTC | Jun 30, 16:25 UTC | 1h 10m |
| 2026-06-25 | N2085V | - | Jun 25, 16:59 UTC | Jun 25, 17:54 UTC | 55m |
| 2026-06-12 | N2085V | - | Jun 12, 00:05 UTC | Jun 12, 00:20 UTC | 15m |
| 2026-06-11 | N2085V | - | Jun 11, 22:50 UTC | Jun 11, 23:00 UTC | 10m |
| 2026-06-11 | N2085V | - | Jun 11, 21:40 UTC | Jun 11, 21:50 UTC | 10m |
| 2026-06-03 | N2085V | - | Jun 3, 16:55 UTC | Jun 3, 17:10 UTC | 15m |
| 2026-06-02 | N2085V | - | Jun 2, 19:35 UTC | Jun 2, 20:00 UTC | 25m |
| 2026-05-29 | N2085V | - | May 29, 15:30 UTC | May 29, 17:10 UTC | 1h 40m |
| 2026-05-25 | N2085V | - | May 25, 16:05 UTC | May 25, 17:20 UTC | 1h 15m |
| 2026-05-24 | N2085V | - | May 24, 19:40 UTC | May 24, 20:35 UTC | 55m |
| 2026-05-23 | N2085V | - | May 23, 20:30 UTC | May 23, 20:50 UTC | 20m |
| 2026-05-23 | N2085V | - | May 23, 14:40 UTC | May 23, 15:05 UTC | 25m |
| 2026-05-22 | N2085V | - | May 22, 14:25 UTC | May 22, 14:40 UTC | 15m |
| 2026-05-21 | N2085V | - | May 21, 03:55 UTC | May 21, 04:45 UTC | 50m |
| 2026-05-14 | N2085V | - | May 14, 18:30 UTC | May 14, 19:55 UTC | 1h 25m |
| 2026-05-12 | N2085V | - | May 12, 03:10 UTC | May 12, 03:25 UTC | 15m |
| 2026-05-03 | N2085V | - | May 3, 15:40 UTC | May 3, 16:05 UTC | 25m |
| 2026-04-30 | N2085V | - | Apr 30, 16:50 UTC | Apr 30, 17:40 UTC | 50m |
| 2026-04-28 | N2085V | - | Apr 28, 19:55 UTC | Apr 28, 20:50 UTC | 55m |
| 2026-04-26 | N2085V | - | Apr 26, 17:20 UTC | Apr 26, 17:40 UTC | 20m |
| 2026-04-26 | N2085V | - | Apr 26, 16:25 UTC | Apr 26, 16:45 UTC | 20m |
| 2026-04-26 | N2085V | - | Apr 26, 04:05 UTC | Apr 26, 05:05 UTC | 1h 0m |
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 N2085V page for operator, model, and routing details .