sensors Mode-S transponder

502D5C

ICAO 24-bit transponder address · allocated to Latvia

Currently assigned to YL-ABK · AIRBUS A220-300

Hex
502D5C
Octal
24026534
Decimal
5,254,492
Country
LV
Tail
YL-ABK
Type
BCS3
No current signal · last broadcast 12h ago
Flights observed
18
Distinct callsigns
11
Country
LV
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 502D5C.

Country allocation

The ICAO 24-bit address 502D5C 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 11 distinct

Callsign Airline Flights Last seen
AUA720C - 3 2026-04-13
AUA317Q - 3 2026-04-13
AUA823H - 2 2026-04-14
AUA695J - 2 2026-04-13
AUA31J Austrian Airlines 2 2026-04-13
AUA824 - 1 2026-04-14
AUA696 - 1 2026-04-13
AUA27PQ - 1 2026-04-13
AUA271 - 1 2026-04-13
AUA12L - 1 2026-04-12
AUA12K Austrian Airlines 1 2026-04-12

Recent flights last 18

DateFlightRouteTakeoffLandingDuration
2026-04-14 AUA824 - Apr 14, 10:35 UTCApr 14, 11:05 UTC30m
2026-04-14 AUA823H - Apr 14, 09:10 UTCApr 14, 09:35 UTC25m
2026-04-14 AUA823H - Apr 14, 08:05 UTCApr 14, 09:05 UTC1h 0m
2026-04-13 AUA31J AMS → VIE Apr 13, 19:50 UTCApr 13, 20:05 UTC15m
2026-04-13 AUA31J AMS → VIE Apr 13, 18:35 UTCApr 13, 20:05 UTC1h 30m
2026-04-13 AUA317Q - Apr 13, 16:15 UTCApr 13, 17:10 UTC55m
2026-04-13 AUA317Q - Apr 13, 15:50 UTCApr 13, 17:10 UTC1h 20m
2026-04-13 AUA317Q - Apr 13, 15:40 UTCApr 13, 16:15 UTC35m
2026-04-13 AUA696 - Apr 13, 13:15 UTCApr 13, 14:35 UTC1h 20m
2026-04-13 AUA695J - Apr 13, 11:55 UTCApr 13, 12:05 UTC10m
2026-04-13 AUA695J VIE → OTP Apr 13, 10:55 UTCApr 13, 12:05 UTC1h 10m
2026-04-13 AUA27PQ HAJ → VIE Apr 13, 08:35 UTCApr 13, 09:40 UTC1h 5m
2026-04-13 AUA271 VIE → HAJ Apr 13, 06:20 UTCApr 13, 07:35 UTC1h 15m
2026-04-13 AUA720C - Apr 13, 04:20 UTCApr 13, 05:00 UTC40m
2026-04-13 AUA720C - Apr 13, 03:55 UTCApr 13, 05:00 UTC1h 5m
2026-04-13 AUA720C - Apr 13, 03:40 UTCApr 13, 04:15 UTC35m
2026-04-12 AUA12K BSL → VIE Apr 12, 18:55 UTCApr 12, 20:00 UTC1h 5m
2026-04-12 AUA12L - Apr 12, 17:15 UTCApr 12, 17:50 UTC35m

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

Mode-S 502D5C frequently asked

What is Mode-S code 502D5C?
502D5C is an ICAO 24-bit transponder address. Allocated to Latvia. Assigned to YL-ABK.
Where is Mode-S 502D5C registered?
Mode-S code 502D5C is allocated to Latvia (LV). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 502D5C 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 502D5C, octal 24026534, decimal 5,254,492.
What flights does 502D5C operate?
Mode-S 502D5C has broadcast 11 distinct callsigns, including AUA720C, AUA317Q, AUA823H, AUA695J, AUA31J.