sensors Mode-S transponder
31DEED
ICAO 24-bit transponder address · allocated to Italy
Currently assigned to I-D731 · PIPSTREL Virus
- Hex
- 31DEED
- Octal
- 14357355
- Decimal
- 3,268,333
- Country
- IT
- Tail
- I-D731
- Type
- PIVI
- Flights observed
- 53
- Distinct callsigns
- 1
- Country
- IT
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 31DEED falls within the block assigned to Italy (IT) by ICAO Annex 10, Volume III. Every aircraft registered in Italy 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 |
|---|---|---|---|
| ID731 | - | 53 | 2026-07-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-21 | ID731 | - | Jul 21, 16:15 UTC | Jul 21, 17:15 UTC | 1h 0m |
| 2026-07-21 | ID731 | - | Jul 21, 14:45 UTC | Jul 21, 15:40 UTC | 55m |
| 2026-07-20 | ID731 | - | Jul 20, 13:05 UTC | Jul 20, 13:30 UTC | 25m |
| 2026-07-18 | ID731 | - | Jul 18, 07:20 UTC | Jul 18, 09:20 UTC | 2h 0m |
| 2026-07-18 | ID731 | - | Jul 18, 05:45 UTC | Jul 18, 06:20 UTC | 35m |
| 2026-07-17 | ID731 | - | Jul 17, 09:15 UTC | Jul 17, 09:45 UTC | 30m |
| 2026-07-17 | ID731 | - | Jul 17, 08:20 UTC | Jul 17, 08:35 UTC | 15m |
| 2026-07-16 | ID731 | - | Jul 16, 16:25 UTC | Jul 16, 17:30 UTC | 1h 5m |
| 2026-07-16 | ID731 | - | Jul 16, 14:50 UTC | Jul 16, 15:35 UTC | 45m |
| 2026-07-11 | ID731 | - | Jul 11, 11:30 UTC | Jul 11, 12:20 UTC | 50m |
| 2026-07-11 | ID731 | - | Jul 11, 06:50 UTC | Jul 11, 07:55 UTC | 1h 5m |
| 2026-07-09 | ID731 | - | Jul 9, 13:20 UTC | Jul 9, 15:05 UTC | 1h 45m |
| 2026-07-08 | ID731 | - | Jul 8, 16:30 UTC | Jul 8, 17:25 UTC | 55m |
| 2026-07-07 | ID731 | - | Jul 7, 08:45 UTC | Jul 7, 10:45 UTC | 2h 0m |
| 2026-07-07 | ID731 | - | Jul 7, 06:40 UTC | Jul 7, 08:05 UTC | 1h 25m |
| 2026-07-06 | ID731 | - | Jul 6, 13:15 UTC | Jul 6, 13:45 UTC | 30m |
| 2026-07-06 | ID731 | - | Jul 6, 11:50 UTC | Jul 6, 12:40 UTC | 50m |
| 2026-07-05 | ID731 | - | Jul 5, 09:15 UTC | Jul 5, 09:45 UTC | 30m |
| 2026-06-25 | ID731 | - | Jun 25, 09:40 UTC | Jun 25, 10:45 UTC | 1h 5m |
| 2026-06-24 | ID731 | - | Jun 24, 09:15 UTC | Jun 24, 10:14 UTC | 1h 0m |
| 2026-06-21 | ID731 | - | Jun 21, 09:29 UTC | Jun 21, 09:44 UTC | 15m |
| 2026-06-21 | ID731 | - | Jun 21, 08:25 UTC | Jun 21, 08:49 UTC | 25m |
| 2026-06-20 | ID731 | - | Jun 20, 12:04 UTC | Jun 20, 12:30 UTC | 25m |
| 2026-06-20 | ID731 | - | Jun 20, 09:29 UTC | Jun 20, 10:20 UTC | 50m |
| 2026-06-20 | ID731 | - | Jun 20, 07:34 UTC | Jun 20, 08:29 UTC | 55m |
| 2026-06-19 | ID731 | - | Jun 19, 16:25 UTC | Jun 19, 17:14 UTC | 50m |
| 2026-06-17 | ID731 | - | Jun 17, 07:40 UTC | Jun 17, 08:30 UTC | 50m |
| 2026-06-14 | ID731 | - | Jun 14, 11:15 UTC | Jun 14, 11:50 UTC | 35m |
| 2026-06-14 | ID731 | - | Jun 14, 09:05 UTC | Jun 14, 10:45 UTC | 1h 40m |
| 2026-06-12 | ID731 | - | Jun 12, 05:10 UTC | Jun 12, 07:00 UTC | 1h 50m |
| 2026-06-07 | ID731 | - | Jun 7, 13:00 UTC | Jun 7, 13:25 UTC | 25m |
| 2026-06-06 | ID731 | - | Jun 6, 06:50 UTC | Jun 6, 07:25 UTC | 35m |
| 2026-05-25 | ID731 | - | May 25, 16:00 UTC | May 25, 16:50 UTC | 50m |
| 2026-05-23 | ID731 | - | May 23, 14:10 UTC | May 23, 14:40 UTC | 30m |
| 2026-05-23 | ID731 | - | May 23, 11:40 UTC | May 23, 12:20 UTC | 40m |
| 2026-05-22 | ID731 | - | May 22, 14:50 UTC | May 22, 15:05 UTC | 15m |
| 2026-05-19 | ID731 | - | May 19, 15:05 UTC | May 19, 16:15 UTC | 1h 10m |
| 2026-05-17 | ID731 | - | May 17, 13:05 UTC | May 17, 14:35 UTC | 1h 30m |
| 2026-05-17 | ID731 | - | May 17, 12:05 UTC | May 17, 12:15 UTC | 10m |
| 2026-05-15 | ID731 | - | May 15, 12:55 UTC | May 15, 13:05 UTC | 10m |
| 2026-05-15 | ID731 | - | May 15, 12:05 UTC | May 15, 12:15 UTC | 10m |
| 2026-05-03 | ID731 | - | May 3, 07:55 UTC | May 3, 08:25 UTC | 30m |
| 2026-05-02 | ID731 | - | May 2, 13:25 UTC | May 2, 14:10 UTC | 45m |
| 2026-05-02 | ID731 | - | May 2, 09:25 UTC | May 2, 10:55 UTC | 1h 30m |
| 2026-05-02 | ID731 | - | May 2, 08:15 UTC | May 2, 08:35 UTC | 20m |
| 2026-05-01 | ID731 | - | May 1, 10:50 UTC | May 1, 12:00 UTC | 1h 10m |
| 2026-05-01 | ID731 | - | May 1, 09:10 UTC | May 1, 10:05 UTC | 55m |
| 2026-04-27 | ID731 | - | Apr 27, 07:55 UTC | Apr 27, 08:20 UTC | 25m |
| 2026-04-26 | ID731 | - | Apr 26, 10:15 UTC | Apr 26, 11:10 UTC | 55m |
| 2026-04-25 | ID731 | - | Apr 25, 12:45 UTC | Apr 25, 13:30 UTC | 45m |
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 I-D731 page for operator, model, and routing details .