sensors Mode-S transponder
A2DBAD
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N2831T · PIPER PA-28R-180/200/201 · operated by MESIEMORE ROGER
- Hex
- A2DBAD
- Octal
- 50555655
- Decimal
- 10,673,069
- Country
- US
- Tail
- N2831T
- Type
- P28R
- Flights observed
- 45
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 10d ago
Current position
Country allocation
The ICAO 24-bit address A2DBAD 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 |
|---|---|---|---|
| N2831T | - | 45 | 2026-07-26 |
Recent flights last 45
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | N2831T | - | Jul 26, 20:30 UTC | Jul 26, 21:15 UTC | 45m |
| 2026-07-26 | N2831T | - | Jul 26, 16:50 UTC | Jul 26, 17:25 UTC | 35m |
| 2026-07-21 | N2831T | - | Jul 21, 18:40 UTC | Jul 21, 19:45 UTC | 1h 5m |
| 2026-07-21 | N2831T | - | Jul 21, 14:15 UTC | Jul 21, 15:45 UTC | 1h 30m |
| 2026-07-17 | N2831T | - | Jul 17, 14:44 UTC | Jul 17, 15:00 UTC | 15m |
| 2026-07-16 | N2831T | - | Jul 16, 22:45 UTC | Jul 16, 23:49 UTC | 1h 5m |
| 2026-07-14 | N2831T | - | Jul 14, 20:40 UTC | Jul 14, 21:15 UTC | 35m |
| 2026-06-26 | N2831T | - | Jun 26, 17:15 UTC | Jun 26, 17:40 UTC | 25m |
| 2026-06-26 | N2831T | - | Jun 26, 15:54 UTC | Jun 26, 16:24 UTC | 30m |
| 2026-06-22 | N2831T | - | Jun 22, 15:54 UTC | Jun 22, 16:20 UTC | 25m |
| 2026-06-16 | N2831T | - | Jun 16, 17:24 UTC | Jun 16, 17:35 UTC | 10m |
| 2026-06-16 | N2831T | - | Jun 16, 16:25 UTC | Jun 16, 16:35 UTC | 10m |
| 2026-06-14 | N2831T | - | Jun 14, 15:20 UTC | Jun 14, 16:25 UTC | 1h 5m |
| 2026-06-13 | N2831T | - | Jun 13, 16:30 UTC | Jun 13, 17:30 UTC | 1h 0m |
| 2026-06-10 | N2831T | - | Jun 10, 18:55 UTC | Jun 10, 19:10 UTC | 15m |
| 2026-06-10 | N2831T | - | Jun 10, 14:50 UTC | Jun 10, 15:10 UTC | 20m |
| 2026-06-08 | N2831T | - | Jun 8, 19:20 UTC | Jun 8, 20:30 UTC | 1h 10m |
| 2026-06-08 | N2831T | - | Jun 8, 11:50 UTC | Jun 8, 13:10 UTC | 1h 20m |
| 2026-06-01 | N2831T | - | Jun 1, 16:25 UTC | Jun 1, 16:35 UTC | 10m |
| 2026-05-31 | N2831T | - | May 31, 19:35 UTC | May 31, 20:50 UTC | 1h 15m |
| 2026-05-31 | N2831T | - | May 31, 15:10 UTC | May 31, 16:25 UTC | 1h 15m |
| 2026-05-28 | N2831T | - | May 28, 22:15 UTC | May 28, 23:20 UTC | 1h 5m |
| 2026-05-20 | N2831T | - | May 20, 20:40 UTC | May 20, 21:55 UTC | 1h 15m |
| 2026-05-20 | N2831T | - | May 20, 12:35 UTC | May 20, 13:45 UTC | 1h 10m |
| 2026-05-14 | N2831T | - | May 14, 21:15 UTC | May 14, 22:25 UTC | 1h 10m |
| 2026-05-11 | N2831T | - | May 11, 19:25 UTC | May 11, 21:00 UTC | 1h 35m |
| 2026-05-11 | N2831T | - | May 11, 13:30 UTC | May 11, 14:50 UTC | 1h 20m |
| 2026-05-10 | N2831T | - | May 10, 16:50 UTC | May 10, 19:24 UTC | 2h 35m |
| 2026-05-08 | N2831T | - | May 8, 18:25 UTC | May 8, 20:40 UTC | 2h 15m |
| 2026-04-30 | N2831T | - | Apr 30, 21:50 UTC | Apr 30, 22:45 UTC | 55m |
| 2026-04-30 | N2831T | - | Apr 30, 16:15 UTC | Apr 30, 17:25 UTC | 1h 10m |
| 2026-04-24 | N2831T | - | Apr 24, 16:50 UTC | Apr 24, 17:05 UTC | 15m |
| 2026-04-24 | N2831T | - | Apr 24, 14:05 UTC | Apr 24, 14:25 UTC | 20m |
| 2026-04-22 | N2831T | - | Apr 22, 15:50 UTC | Apr 22, 16:55 UTC | 1h 5m |
| 2026-04-22 | N2831T | - | Apr 22, 14:05 UTC | Apr 22, 15:05 UTC | 1h 0m |
| 2026-04-20 | N2831T | - | Apr 20, 20:20 UTC | Apr 20, 21:35 UTC | 1h 15m |
| 2026-04-20 | N2831T | - | Apr 20, 18:30 UTC | Apr 20, 19:35 UTC | 1h 5m |
| 2026-04-18 | N2831T | - | Apr 18, 17:25 UTC | Apr 18, 18:50 UTC | 1h 25m |
| 2026-04-18 | N2831T | - | Apr 18, 14:45 UTC | Apr 18, 16:30 UTC | 1h 45m |
| 2026-04-17 | N2831T | - | Apr 17, 02:10 UTC | Apr 17, 03:15 UTC | 1h 5m |
| 2026-04-16 | N2831T | - | Apr 16, 15:15 UTC | Apr 16, 16:05 UTC | 50m |
| 2026-04-16 | N2831T | - | Apr 16, 14:40 UTC | Apr 16, 15:10 UTC | 30m |
| 2026-04-14 | N2831T | - | Apr 14, 20:55 UTC | Apr 14, 21:30 UTC | 35m |
| 2026-04-14 | N2831T | - | Apr 14, 19:25 UTC | Apr 14, 20:50 UTC | 1h 25m |
| 2026-04-14 | N2831T | - | Apr 14, 16:50 UTC | Apr 14, 18:20 UTC | 1h 30m |
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 N2831T page for operator, model, and routing details .