sensors Mode-S transponder
500124
ICAO 24-bit transponder address · allocated to San Marino
Currently assigned to T7-MAK · BOEING 737-700
- Hex
- 500124
- Octal
- 24000444
- Decimal
- 5,243,172
- Country
- SM
- Tail
- T7-MAK
- Type
- B737
- Flights observed
- 19
- Distinct callsigns
- 2
- Country
- SM
- Last broadcast
- 7d ago
Last known position
Country allocation
The ICAO 24-bit address 500124 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 2 distinct
Recent flights last 19
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-05 | VAJ99K | - | Jul 5, 10:50 UTC | Jul 5, 16:55 UTC | 6h 5m |
| 2026-07-04 | VAJ99K | - | Jul 4, 06:30 UTC | Jul 4, 10:00 UTC | 3h 30m |
| 2026-07-03 | VAJ99K | - | Jul 3, 13:05 UTC | Jul 4, 10:00 UTC | 20h 55m |
| 2026-07-03 | VAJ99K | - | Jul 3, 11:05 UTC | Jul 4, 10:00 UTC | 22h 55m |
| 2026-07-03 | VAJ99K | - | Jul 3, 09:50 UTC | Jul 4, 09:00 UTC | 23h 10m |
| 2026-07-02 | VAJ99K | - | Jul 2, 18:35 UTC | Jul 2, 20:00 UTC | 1h 25m |
| 2026-07-02 | VAJ99K | - | Jul 2, 15:45 UTC | Jul 2, 16:30 UTC | 45m |
| 2026-07-01 | A0325 | - | Jul 1, 18:00 UTC | Jul 1, 18:55 UTC | 55m |
| 2026-07-01 | VAJ99K | - | Jul 1, 08:40 UTC | Jul 1, 10:40 UTC | 2h 0m |
| 2026-06-28 | VAJ99K | - | Jun 28, 16:05 UTC | Jun 28, 18:10 UTC | 2h 5m |
| 2026-06-25 | VAJ99K | - | Jun 25, 07:25 UTC | Jun 25, 12:25 UTC | 5h 0m |
| 2026-06-04 | VAJ99K | - | Jun 4, 10:10 UTC | Jun 4, 15:00 UTC | 4h 50m |
| 2026-06-01 | VAJ99K | - | Jun 1, 10:10 UTC | Jun 1, 13:00 UTC | 2h 50m |
| 2026-05-30 | VAJ99K | - | May 30, 14:10 UTC | May 30, 20:20 UTC | 6h 10m |
| 2026-05-28 | VAJ99K | - | May 28, 16:35 UTC | May 28, 17:10 UTC | 35m |
| 2026-05-26 | VAJ99K | - | May 26, 18:05 UTC | May 26, 20:00 UTC | 1h 55m |
| 2026-05-23 | VAJ99K | - | May 23, 16:50 UTC | May 23, 20:45 UTC | 3h 55m |
| 2026-05-14 | VAJ99K | - | May 14, 19:45 UTC | May 15, 02:20 UTC | 6h 35m |
| 2026-05-13 | VAJ99K | - | May 13, 14:10 UTC | May 13, 17:40 UTC | 3h 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 T7-MAK page for operator, model, and routing details .