sensors Mode-S transponder

502D20

ICAO 24-bit transponder address · allocated to Latvia

Currently assigned to YL-PAD · DIAMOND DA-40 Club Star

Hex
502D20
Octal
24026440
Decimal
5,254,432
Country
LV
Tail
YL-PAD
Type
DA40
No current signal · last broadcast 14h ago
Flights observed
11
Distinct callsigns
1
Country
LV
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 502D20.

Country allocation

The ICAO 24-bit address 502D20 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 1 distinct

Callsign Airline Flights Last seen
YLPAD - 10 2026-04-14

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 YLPAD - Apr 14, 09:10 UTCApr 14, 10:10 UTC1h 0m
2026-04-14 YLPAD - Apr 14, 08:05 UTCApr 14, 09:05 UTC1h 0m
2026-04-14 - - Apr 14, 07:15 UTCApr 14, 07:25 UTC10m
2026-04-14 YLPAD - Apr 14, 06:05 UTCApr 14, 07:05 UTC1h 0m
2026-04-13 YLPAD - Apr 13, 13:25 UTCApr 13, 15:05 UTC1h 40m
2026-04-13 YLPAD - Apr 13, 12:20 UTCApr 13, 12:35 UTC15m
2026-04-13 YLPAD - Apr 13, 11:55 UTCApr 13, 12:35 UTC40m
2026-04-13 YLPAD - Apr 13, 10:15 UTCApr 13, 12:15 UTC2h 0m
2026-04-13 YLPAD - Apr 13, 08:20 UTCApr 13, 09:35 UTC1h 15m
2026-04-13 YLPAD - Apr 13, 07:55 UTCApr 13, 09:35 UTC1h 40m
2026-04-13 YLPAD - Apr 13, 07:20 UTCApr 13, 08:15 UTC55m

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 YL-PAD page for operator, model, and routing details .

Mode-S 502D20 frequently asked

What is Mode-S code 502D20?
502D20 is an ICAO 24-bit transponder address. Allocated to Latvia. Assigned to YL-PAD.
Where is Mode-S 502D20 registered?
Mode-S code 502D20 is allocated to Latvia (LV). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 502D20 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 502D20, octal 24026440, decimal 5,254,432.
What flights does 502D20 operate?
Mode-S 502D20 has broadcast 1 distinct callsign, including YLPAD.