Apparatus

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sensors Mode-S transponder

502CF1

ICAO 24-bit transponder address · allocated to Latvia

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

Hex
502CF1
Octal
24026361
Decimal
5,254,385
Country
LV
Tail
YL-PAB
Type
DA40
No current signal · last broadcast 12h ago
Flights observed
8
Distinct callsigns
1
Country
LV
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 502CF1.

Country allocation

The ICAO 24-bit address 502CF1 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
YLPAB - 8 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 YLPAB - Apr 14, 09:15 UTCApr 14, 11:05 UTC1h 50m
2026-04-14 YLPAB - Apr 14, 06:25 UTCApr 14, 06:35 UTC10m
2026-04-13 YLPAB - Apr 13, 12:20 UTCApr 13, 13:10 UTC50m
2026-04-13 YLPAB - Apr 13, 11:55 UTCApr 13, 13:10 UTC1h 15m
2026-04-13 YLPAB - Apr 13, 11:25 UTCApr 13, 12:15 UTC50m
2026-04-13 YLPAB - Apr 13, 08:20 UTCApr 13, 08:30 UTC10m
2026-04-13 YLPAB - Apr 13, 07:55 UTCApr 13, 08:30 UTC35m
2026-04-13 YLPAB - Apr 13, 06:20 UTCApr 13, 08:15 UTC1h 55m

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-PAB page for operator, model, and routing details .

Mode-S 502CF1 frequently asked

What is Mode-S code 502CF1?
502CF1 is an ICAO 24-bit transponder address. Allocated to Latvia. Assigned to YL-PAB.
Where is Mode-S 502CF1 registered?
Mode-S code 502CF1 is allocated to Latvia (LV). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 502CF1 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 502CF1, octal 24026361, decimal 5,254,385.
What flights does 502CF1 operate?
Mode-S 502CF1 has broadcast 1 distinct callsign, including YLPAB.