sensors Mode-S transponder

502CEF

ICAO 24-bit transponder address · allocated to Latvia

Currently assigned to YL-PAZ · DIAMOND DA-42 Guardian

Hex
502CEF
Octal
24026357
Decimal
5,254,383
Country
LV
Tail
YL-PAZ
Type
DA42
Broadcasting now · callsign YLPAZ · 400 ft
Flights observed
6
Distinct callsigns
1
Country
LV
Last broadcast
20h ago

Current position

502CEF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 502CEF 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
YLPAZ - 6 2026-04-14

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 YLPAZ - Apr 14, 10:40 UTCApr 14, 11:05 UTC25m
2026-04-14 YLPAZ - Apr 14, 08:10 UTCApr 14, 08:55 UTC45m
2026-04-13 YLPAZ - Apr 13, 13:55 UTCApr 13, 14:40 UTC45m
2026-04-13 YLPAZ - Apr 13, 12:20 UTCApr 13, 13:15 UTC55m
2026-04-13 YLPAZ - Apr 13, 11:55 UTCApr 13, 13:15 UTC1h 20m
2026-04-13 YLPAZ - Apr 13, 10:35 UTCApr 13, 12:15 UTC1h 40m

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

Mode-S 502CEF frequently asked

What is Mode-S code 502CEF?
502CEF is an ICAO 24-bit transponder address. Allocated to Latvia. Assigned to YL-PAZ.
Where is Mode-S 502CEF registered?
Mode-S code 502CEF is allocated to Latvia (LV). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 502CEF broadcasting right now?
Yes. Mode-S 502CEF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 502CEF, octal 24026357, decimal 5,254,383.
What flights does 502CEF operate?
Mode-S 502CEF has broadcast 1 distinct callsign, including YLPAZ.