Apparatus

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sensors Mode-S transponder

502D23

ICAO 24-bit transponder address · allocated to Latvia

Currently assigned to YL-AAU · AIRBUS A220-300

Hex
502D23
Octal
24026443
Decimal
5,254,435
Country
LV
Tail
YL-AAU
Type
BCS3
No current signal · last broadcast 9h ago
Flights observed
537
Distinct callsigns
20
Country
LV
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 502D23.

Country allocation

The ICAO 24-bit address 502D23 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 20 distinct

Callsign Airline Flights Last seen
BTI8GJ - 7 2026-06-16
BTI6D9 Air Baltic 6 2026-05-11
BTI69R - 6 2026-06-16
BTI62D Air Baltic 6 2026-05-11
BEL7PK - 6 2026-07-08
BEL6HI - 6 2026-07-08
BEL4SF - 6 2026-07-08
BEL3JY - 6 2026-07-08
BEL2JE - 6 2026-07-09
BEL1ZT - 6 2026-07-09
BTI3ZB - 5 2026-06-26
BTI3G2 - 5 2026-06-26
BTI2PG - 5 2026-06-27
BTI24X - 5 2026-06-27
BEL94L - 5 2026-07-09
BEL7JN Brussels Airlines 5 2026-07-06
BEL5RA - 5 2026-07-07
BEL5EF - 5 2026-07-09
BEL4QA - 5 2026-07-07
BEL3LY - 5 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AUA296 BRU → VIE Jul 13, 16:15 UTCJul 13, 17:40 UTC1h 25m
2026-07-13 AUA295 VIE → BRU Jul 13, 13:35 UTCJul 13, 15:10 UTC1h 35m
2026-07-13 AUA75U TGD → VIE Jul 13, 10:45 UTCJul 13, 11:50 UTC1h 5m
2026-07-13 AUA751W - Jul 13, 08:10 UTCJul 13, 09:00 UTC50m
2026-07-13 AUA240 BER → VIE Jul 13, 05:31 UTCJul 13, 06:30 UTC1h 0m
2026-07-12 AUA239 VIE → BER Jul 12, 19:15 UTCJul 12, 20:15 UTC1h 0m
2026-07-12 BTI7BA - Jul 12, 15:50 UTCJul 12, 17:25 UTC1h 35m
2026-07-12 BTI8MT PRG → RIX Jul 12, 12:55 UTCJul 12, 14:25 UTC1h 30m
2026-07-12 BTI3VL - Jul 12, 10:15 UTCJul 12, 11:35 UTC1h 20m
2026-07-12 BTI6YC BUD → RIX Jul 12, 06:45 UTCJul 12, 08:25 UTC1h 40m
2026-07-12 BTI26F - Jul 12, 04:15 UTCJul 12, 05:50 UTC1h 35m
2026-07-11 BTI716 - Jul 11, 17:30 UTCJul 11, 20:55 UTC3h 25m
2026-07-11 BTI715 - Jul 11, 12:50 UTCJul 11, 16:05 UTC3h 15m
2026-07-11 BTI6RZ - Jul 11, 08:30 UTCJul 11, 10:25 UTC1h 55m
2026-07-11 BTI6RV - Jul 11, 04:55 UTCJul 11, 06:45 UTC1h 50m
2026-07-11 BTI35T TMP → RIX Jul 11, 02:25 UTCJul 11, 03:20 UTC55m
2026-07-10 BTI35Z - Jul 10, 21:10 UTCJul 10, 21:55 UTC45m
2026-07-10 BTI79M TLL → RIX Jul 10, 18:40 UTCJul 10, 19:20 UTC40m
2026-07-10 BTI4ZK - Jul 10, 17:05 UTCJul 10, 17:40 UTC35m
2026-07-10 BTI26R BCN → RIX Jul 10, 12:55 UTCJul 10, 16:10 UTC3h 15m
2026-07-10 BTI9TZ - Jul 10, 08:15 UTCJul 10, 11:30 UTC3h 15m
2026-07-10 BTI725 - Jul 10, 02:25 UTCJul 10, 06:45 UTC4h 20m
2026-07-10 BTI724 - Jul 10, 00:40 UTCJul 10, 00:55 UTC15m
2026-07-09 BTI724 - Jul 9, 21:10 UTCJul 9, 23:45 UTC2h 35m
2026-07-09 BTI6C4 BRU → RIX Jul 9, 17:55 UTCJul 9, 20:05 UTC2h 10m
2026-07-09 BEL5EF FRA → BRU Jul 9, 15:05 UTCJul 9, 15:50 UTC45m
2026-07-09 BEL2SR BRU → FRA Jul 9, 13:00 UTCJul 9, 13:35 UTC35m
2026-07-09 BEL2JE CPH → BRU Jul 9, 10:25 UTCJul 9, 11:40 UTC1h 15m
2026-07-09 BEL1ZT BRU → CPH Jul 9, 08:00 UTCJul 9, 09:10 UTC1h 10m
2026-07-09 BEL94L - Jul 9, 05:20 UTCJul 9, 06:25 UTC1h 5m
2026-07-08 BEL3LY - Jul 8, 19:30 UTCJul 8, 20:30 UTC1h 0m
2026-07-08 BEL6HI LJU → BRU Jul 8, 16:50 UTCJul 8, 18:20 UTC1h 30m
2026-07-08 BEL7PK - Jul 8, 14:35 UTCJul 8, 15:50 UTC1h 15m
2026-07-08 BEL4SF - Jul 8, 11:35 UTCJul 8, 12:45 UTC1h 10m
2026-07-08 BEL3JY - Jul 8, 09:25 UTCJul 8, 10:25 UTC1h 0m
2026-07-08 BEL2SC MXP → BRU Jul 8, 07:05 UTCJul 8, 08:15 UTC1h 10m
2026-07-08 BEL5BN - Jul 8, 04:35 UTCJul 8, 05:45 UTC1h 10m
2026-07-07 BEL1852 PMO → BRU Jul 7, 16:30 UTCJul 7, 18:45 UTC2h 15m
2026-07-07 BEL1851 BRU → PMO Jul 7, 10:40 UTCJul 7, 12:50 UTC2h 10m
2026-07-07 BEL4QA VIE → BRU Jul 7, 08:10 UTCJul 7, 09:40 UTC1h 30m
2026-07-07 BEL5RA BRU → VIE Jul 7, 06:10 UTCJul 7, 07:30 UTC1h 20m
2026-07-06 BEL7JN BCN → BRU Jul 6, 19:45 UTCJul 6, 21:40 UTC1h 55m
2026-07-06 BEL3FJ - Jul 6, 16:50 UTCJul 6, 18:20 UTC1h 30m
2026-07-06 BEL9SZ - Jul 6, 14:10 UTCJul 6, 15:30 UTC1h 20m
2026-07-06 BEL9SZ - Jul 6, 13:20 UTCJul 6, 14:05 UTC45m
2026-07-06 BEL9CK - Jul 6, 10:15 UTCJul 6, 12:15 UTC2h 0m
2026-07-06 BEL4QA VIE → BRU Jul 6, 07:30 UTCJul 6, 09:00 UTC1h 30m
2026-07-06 BEL5RA BRU → VIE Jul 6, 05:05 UTCJul 6, 06:25 UTC1h 20m
2026-07-05 BEL9SZ VNO → BRU Jul 5, 15:55 UTCJul 5, 18:10 UTC2h 15m
2026-07-05 BEL9CK - Jul 5, 12:55 UTCJul 5, 15:00 UTC2h 5m

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

Mode-S 502D23 frequently asked

What is Mode-S code 502D23?
502D23 is an ICAO 24-bit transponder address. Allocated to Latvia. Assigned to YL-AAU.
Where is Mode-S 502D23 registered?
Mode-S code 502D23 is allocated to Latvia (LV). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 502D23 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 502D23, octal 24026443, decimal 5,254,435.
What flights does 502D23 operate?
Mode-S 502D23 has broadcast 20 distinct callsigns, including BTI8GJ, BTI6D9, BTI69R, BTI62D, BEL7PK.