sensors Mode-S transponder
500091
ICAO 24-bit transponder address · allocated to San Marino
Currently assigned to T7-ARG · GULFSTREAM 5
- Hex
- 500091
- Octal
- 24000221
- Decimal
- 5,243,025
- Country
- SM
- Tail
- T7-ARG
- Type
- GLF5
- Flights observed
- 45
- Distinct callsigns
- 1
- Country
- SM
- Last broadcast
- 10d ago
Last known position
Country allocation
The ICAO 24-bit address 500091 falls within the block assigned to San Marino (SM) by ICAO Annex 10, Volume III. Every aircraft registered in San Marino 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 |
|---|---|---|---|
| T7ARG | - | 45 | 2026-07-25 |
Recent flights last 45
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | T7ARG | - | Jul 25, 09:40 UTC | Jul 25, 11:50 UTC | 2h 10m |
| 2026-07-25 | T7ARG | - | Jul 25, 01:00 UTC | Jul 25, 08:25 UTC | 7h 25m |
| 2026-07-22 | T7ARG | - | Jul 22, 18:30 UTC | Jul 22, 19:00 UTC | 30m |
| 2026-07-20 | T7ARG | - | Jul 20, 09:55 UTC | Jul 20, 10:20 UTC | 25m |
| 2026-07-16 | T7ARG | - | Jul 16, 09:35 UTC | Jul 16, 17:25 UTC | 7h 50m |
| 2026-07-15 | T7ARG | - | Jul 15, 00:20 UTC | Jul 15, 07:40 UTC | 7h 20m |
| 2026-07-13 | T7ARG | - | Jul 13, 20:15 UTC | Jul 13, 20:40 UTC | 25m |
| 2026-07-12 | T7ARG | - | Jul 12, 13:20 UTC | Jul 12, 13:35 UTC | 15m |
| 2026-07-06 | T7ARG | - | Jul 6, 10:10 UTC | Jul 6, 10:35 UTC | 25m |
| 2026-07-05 | T7ARG | - | Jul 5, 11:20 UTC | Jul 6, 10:15 UTC | 22h 55m |
| 2026-07-04 | T7ARG | - | Jul 4, 12:15 UTC | Jul 4, 13:05 UTC | 50m |
| 2026-07-01 | T7ARG | - | Jul 1, 14:40 UTC | Jul 1, 15:15 UTC | 35m |
| 2026-07-01 | T7ARG | - | Jul 1, 10:00 UTC | Jul 1, 10:30 UTC | 30m |
| 2026-06-27 | T7ARG | - | Jun 27, 13:00 UTC | Jun 27, 13:15 UTC | 15m |
| 2026-06-24 | T7ARG | - | Jun 24, 12:30 UTC | Jun 24, 13:00 UTC | 30m |
| 2026-06-24 | T7ARG | - | Jun 24, 07:20 UTC | Jun 24, 07:44 UTC | 25m |
| 2026-06-23 | T7ARG | - | Jun 23, 11:19 UTC | Jun 23, 18:50 UTC | 7h 30m |
| 2026-06-20 | T7ARG | BSL → CAT | Jun 20, 17:24 UTC | Jun 20, 19:49 UTC | 2h 25m |
| 2026-06-16 | T7ARG | - | Jun 16, 12:55 UTC | Jun 16, 14:00 UTC | 1h 5m |
| 2026-06-14 | T7ARG | - | Jun 14, 22:25 UTC | Jun 15, 06:49 UTC | 8h 24m |
| 2026-06-05 | T7ARG | - | Jun 5, 08:40 UTC | Jun 5, 08:50 UTC | 10m |
| 2026-06-05 | T7ARG | - | Jun 5, 06:05 UTC | Jun 5, 06:35 UTC | 30m |
| 2026-06-04 | T7ARG | - | Jun 4, 16:30 UTC | Jun 4, 16:45 UTC | 15m |
| 2026-06-03 | T7ARG | - | Jun 3, 08:30 UTC | Jun 3, 11:40 UTC | 3h 10m |
| 2026-06-02 | T7ARG | - | Jun 2, 17:40 UTC | Jun 2, 18:05 UTC | 25m |
| 2026-06-01 | T7ARG | - | Jun 1, 14:35 UTC | Jun 1, 14:50 UTC | 15m |
| 2026-06-01 | T7ARG | - | Jun 1, 13:00 UTC | Jun 1, 13:10 UTC | 10m |
| 2026-05-30 | T7ARG | - | May 30, 10:15 UTC | May 30, 17:20 UTC | 7h 5m |
| 2026-05-29 | T7ARG | - | May 29, 07:35 UTC | May 29, 14:45 UTC | 7h 10m |
| 2026-05-21 | T7ARG | - | May 21, 15:10 UTC | May 21, 15:40 UTC | 30m |
| 2026-05-21 | T7ARG | - | May 21, 07:05 UTC | May 21, 07:30 UTC | 25m |
| 2026-05-18 | T7ARG | - | May 18, 13:45 UTC | May 18, 14:10 UTC | 25m |
| 2026-05-18 | T7ARG | - | May 18, 09:40 UTC | May 18, 09:55 UTC | 15m |
| 2026-05-16 | T7ARG | - | May 16, 21:30 UTC | May 16, 21:55 UTC | 25m |
| 2026-05-16 | T7ARG | - | May 16, 13:31 UTC | May 16, 14:41 UTC | 1h 10m |
| 2026-05-13 | T7ARG | - | May 13, 11:30 UTC | May 13, 20:55 UTC | 9h 25m |
| 2026-05-12 | T7ARG | - | May 12, 09:05 UTC | May 12, 09:15 UTC | 10m |
| 2026-05-12 | T7ARG | - | May 12, 06:30 UTC | May 12, 07:10 UTC | 40m |
| 2026-05-11 | T7ARG | - | May 11, 12:50 UTC | May 11, 13:15 UTC | 25m |
| 2026-05-07 | T7ARG | - | May 7, 10:05 UTC | May 7, 10:50 UTC | 45m |
| 2026-05-06 | T7ARG | - | May 6, 12:30 UTC | May 7, 10:50 UTC | 22h 20m |
| 2026-05-05 | T7ARG | - | May 5, 10:05 UTC | May 5, 10:30 UTC | 25m |
| 2026-04-20 | T7ARG | - | Apr 20, 01:00 UTC | Apr 20, 07:45 UTC | 6h 45m |
| 2026-04-19 | T7ARG | - | Apr 19, 22:25 UTC | Apr 19, 23:10 UTC | 45m |
| 2026-04-18 | T7ARG | - | Apr 18, 11:30 UTC | Apr 18, 13:45 UTC | 2h 15m |
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 T7-ARG page for operator, model, and routing details .