sensors Mode-S transponder
502D9B
ICAO 24-bit transponder address · allocated to Latvia
- Hex
- 502D9B
- Octal
- 24026633
- Decimal
- 5,254,555
- Country
- LV
- Flights observed
- 24
- Distinct callsigns
- 3
- Country
- LV
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 502D9B falls within the block assigned to Latvia (LV) by ICAO Annex 10, Volume III. Every aircraft registered in Latvia 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 3 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| YLAKR | - | 21 | 2026-06-22 |
| BTI716 | Air Baltic | 1 | 2026-06-09 |
| BTI712 | Air Baltic | 1 | 2026-06-15 |
Recent flights last 24
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-22 | YLAKR | - | Jun 22, 18:00 UTC | Jun 22, 19:09 UTC | 1h 10m |
| 2026-06-19 | YLAKR | - | Jun 19, 16:39 UTC | Jun 19, 18:39 UTC | 2h 0m |
| 2026-06-15 | BTI712 | IST → RIX | Jun 15, 10:00 UTC | Jun 15, 14:50 UTC | 4h 50m |
| 2026-06-13 | YLAKR | - | Jun 13, 15:55 UTC | Jun 13, 21:45 UTC | 5h 50m |
| 2026-06-13 | YLAKR | - | Jun 13, 07:20 UTC | Jun 13, 07:45 UTC | 25m |
| 2026-06-12 | YLAKR | - | Jun 12, 08:20 UTC | Jun 12, 08:50 UTC | 30m |
| 2026-06-10 | YLAKR | - | Jun 10, 16:00 UTC | Jun 10, 17:25 UTC | 1h 25m |
| 2026-06-09 | BTI716 | AYT → RIX | Jun 9, 05:45 UTC | Jun 9, 20:45 UTC | 15h 0m |
| 2026-06-07 | YLAKR | - | Jun 7, 18:20 UTC | Jun 7, 19:00 UTC | 40m |
| 2026-06-07 | YLAKR | - | Jun 7, 14:40 UTC | Jun 7, 15:15 UTC | 35m |
| 2026-06-07 | YLAKR | - | Jun 7, 04:05 UTC | Jun 7, 04:30 UTC | 25m |
| 2026-06-03 | YLAKR | - | Jun 3, 17:25 UTC | Jun 3, 18:45 UTC | 1h 20m |
| 2026-05-26 | - | - | May 26, 10:50 UTC | May 26, 11:05 UTC | 15m |
| 2026-05-23 | YLAKR | - | May 23, 18:05 UTC | May 23, 18:45 UTC | 41m |
| 2026-05-23 | YLAKR | - | May 23, 10:30 UTC | May 23, 10:50 UTC | 20m |
| 2026-05-23 | YLAKR | - | May 23, 09:10 UTC | May 23, 09:40 UTC | 30m |
| 2026-05-23 | YLAKR | - | May 23, 06:45 UTC | May 23, 07:10 UTC | 25m |
| 2026-05-17 | YLAKR | - | May 17, 16:40 UTC | May 17, 18:15 UTC | 1h 35m |
| 2026-05-17 | YLAKR | - | May 17, 09:00 UTC | May 17, 10:25 UTC | 1h 25m |
| 2026-05-10 | YLAKR | - | May 10, 17:10 UTC | May 10, 17:55 UTC | 45m |
| 2026-05-10 | YLAKR | - | May 10, 09:30 UTC | May 10, 12:05 UTC | 2h 35m |
| 2026-05-10 | YLAKR | - | May 10, 06:45 UTC | May 10, 07:55 UTC | 1h 10m |
| 2026-05-01 | YLAKR | - | May 1, 17:20 UTC | May 1, 17:55 UTC | 35m |
| 2026-05-01 | YLAKR | - | May 1, 15:40 UTC | May 1, 16:50 UTC | 1h 10m |
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.