Apparatus

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sensors Mode-S transponder

502D43

ICAO 24-bit transponder address · allocated to Latvia

Currently assigned to YL-ABB · AIRBUS A220-300

Hex
502D43
Octal
24026503
Decimal
5,254,467
Country
LV
Tail
YL-ABB
Type
BCS3
No current signal · last broadcast 15d ago
Flights observed
443
Distinct callsigns
20
Country
LV
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S 502D43.

Country allocation

The ICAO 24-bit address 502D43 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
AUA79G Austrian Airlines 10 2026-05-19
AUA770 Austrian Airlines 9 2026-05-19
AUA55P Austrian Airlines 8 2026-05-18
AUA699M Austrian Airlines 7 2026-05-17
AUA557T Austrian Airlines 7 2026-05-18
AUA700 Austrian Airlines 6 2026-05-18
AUA312U - 6 2026-05-14
AUA27PQ - 6 2026-05-18
AUA271 Austrian Airlines 6 2026-05-18
AUA204 Austrian Airlines 6 2026-05-11
AUA203 Austrian Airlines 6 2026-05-11
BTI724 Air Baltic 5 2026-05-28
AUA71V Austrian Airlines 5 2026-05-16
AUA718 Austrian Airlines 5 2026-05-16
AUA696 Austrian Airlines 5 2026-05-13
AUA695J Austrian Airlines 5 2026-05-13
AUA319U - 5 2026-05-19
AUA313 Austrian Airlines 5 2026-05-20
AUA311T Austrian Airlines 5 2026-05-14
BTI9UZ Air Baltic 4 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-29 BTI9807 RIX → TLL Jun 29, 07:09 UTCJun 29, 10:24 UTC3h 15m
2026-06-26 BTI696 NCE → RIX Jun 26, 16:49 UTCJun 26, 19:30 UTC2h 40m
2026-06-26 BTI695 - Jun 26, 12:44 UTCJun 26, 15:45 UTC3h 0m
2026-06-26 BTI31J - Jun 26, 11:05 UTCJun 26, 11:34 UTC30m
2026-06-26 BTI9UG - Jun 26, 08:15 UTCJun 26, 10:15 UTC2h 0m
2026-06-26 BTI8FH TLL → AMS Jun 26, 04:50 UTCJun 26, 07:00 UTC2h 10m
2026-06-25 BTI4XH MUC → TLL Jun 25, 19:34 UTCJun 25, 21:35 UTC2h 0m
2026-06-25 BTI78F TLL → MUC Jun 25, 16:09 UTCJun 25, 18:15 UTC2h 5m
2026-06-25 BTI42U - Jun 25, 10:20 UTCJun 25, 14:29 UTC4h 10m
2026-06-25 BTI8ZF - Jun 25, 04:35 UTCJun 25, 08:55 UTC4h 20m
2026-06-24 BTI4XH MUC → TLL Jun 24, 19:39 UTCJun 24, 21:44 UTC2h 5m
2026-06-24 BTI78F TLL → MUC Jun 24, 16:29 UTCJun 24, 18:34 UTC2h 5m
2026-06-24 BTI3UB HER → TLL Jun 24, 11:34 UTCJun 24, 15:35 UTC4h 0m
2026-06-24 BTI34C TLL → HER Jun 24, 06:39 UTCJun 24, 10:04 UTC3h 25m
2026-06-23 BTI8CH MLA → TLL Jun 23, 22:44 UTCJun 24, 02:40 UTC3h 55m
2026-06-23 BTI6HL TLL → MLA Jun 23, 18:20 UTCJun 23, 21:49 UTC3h 30m
2026-06-23 BTI29K MUC → TLL Jun 23, 15:15 UTCJun 23, 17:20 UTC2h 5m
2026-06-23 BTI78V TLL → MUC Jun 23, 12:05 UTCJun 23, 14:15 UTC2h 10m
2026-06-23 BTI98R - Jun 23, 08:54 UTCJun 23, 11:04 UTC2h 10m
2026-06-23 BTI2YH TLL → BRU Jun 23, 05:15 UTCJun 23, 07:29 UTC2h 15m
2026-06-23 BTI8FC TIA → TLL Jun 23, 00:45 UTCJun 23, 03:25 UTC2h 40m
2026-06-22 BTI29P TLL → TIA Jun 22, 20:34 UTCJun 22, 23:10 UTC2h 35m
2026-06-22 BTI4WA NCE → TLL Jun 22, 15:10 UTCJun 22, 18:04 UTC2h 55m
2026-06-22 BTI8LM TLL → NCE Jun 22, 10:40 UTCJun 22, 13:44 UTC3h 5m
2026-06-21 BTI9UZ VNO → TLL Jun 21, 20:00 UTCJun 21, 20:50 UTC50m
2026-06-21 BTI6EY TLL → VNO Jun 21, 18:20 UTCJun 21, 19:09 UTC50m
2026-06-21 BTI4EC - Jun 21, 16:14 UTCJun 21, 17:20 UTC1h 5m
2026-06-21 BTI7HW TLL → OSL Jun 21, 14:05 UTCJun 21, 15:19 UTC1h 15m
2026-06-21 BTI3UB HER → TLL Jun 21, 09:15 UTCJun 21, 13:09 UTC3h 55m
2026-06-21 BTI34C TLL → HER Jun 21, 04:34 UTCJun 21, 07:55 UTC3h 20m
2026-06-20 BTI8YW BOJ → TLL Jun 20, 20:14 UTCJun 20, 23:10 UTC2h 55m
2026-06-20 BTI86L TLL → BOJ Jun 20, 15:54 UTCJun 20, 18:40 UTC2h 45m
2026-06-20 BTI42U - Jun 20, 10:39 UTCJun 20, 14:44 UTC4h 5m
2026-06-20 BTI8ZF - Jun 20, 04:49 UTCJun 20, 09:14 UTC4h 25m
2026-06-20 BTI8FC TIA → TLL Jun 20, 00:44 UTCJun 20, 03:29 UTC2h 45m
2026-06-19 BTI29P TLL → TIA Jun 19, 20:44 UTCJun 19, 23:04 UTC2h 20m
2026-06-19 BTI98R BRU → TLL Jun 19, 17:34 UTCJun 19, 19:45 UTC2h 10m
2026-06-19 BTI2YH TLL → BRU Jun 19, 14:09 UTCJun 19, 16:34 UTC2h 25m
2026-06-19 BTI4WA NCE → TLL Jun 19, 09:14 UTCJun 19, 12:04 UTC2h 50m
2026-06-19 BTI8LM TLL → NCE Jun 19, 04:44 UTCJun 19, 07:49 UTC3h 5m
2026-06-18 BTI9UZ VNO → TLL Jun 18, 19:25 UTCJun 18, 20:20 UTC55m
2026-06-18 BTI6EY TLL → VNO Jun 18, 17:35 UTCJun 18, 18:25 UTC50m
2026-06-18 BTI860 AMS → TLL Jun 18, 14:40 UTCJun 18, 16:40 UTC2h 0m
2026-06-18 BTI859 TLL → AMS Jun 18, 11:25 UTCJun 18, 13:40 UTC2h 15m
2026-06-18 BTI9UG AMS → TLL Jun 18, 08:30 UTCJun 18, 10:20 UTC1h 50m
2026-06-18 BTI8FH TLL → AMS Jun 18, 04:45 UTCJun 18, 07:00 UTC2h 15m
2026-06-17 BTI4ZC VIE → TLL Jun 17, 14:40 UTCJun 17, 16:55 UTC2h 15m
2026-06-17 BTI7HA TLL → VIE Jun 17, 11:40 UTCJun 17, 13:35 UTC1h 55m
2026-06-17 BTI8YW BOJ → TLL Jun 17, 07:35 UTCJun 17, 10:30 UTC2h 55m
2026-06-17 BTI86L TLL → BOJ Jun 17, 03:15 UTCJun 17, 06:00 UTC2h 45m

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

Mode-S 502D43 frequently asked

What is Mode-S code 502D43?
502D43 is an ICAO 24-bit transponder address. Allocated to Latvia. Assigned to YL-ABB.
Where is Mode-S 502D43 registered?
Mode-S code 502D43 is allocated to Latvia (LV). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 502D43 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 502D43, octal 24026503, decimal 5,254,467.
What flights does 502D43 operate?
Mode-S 502D43 has broadcast 20 distinct callsigns, including AUA79G, AUA770, AUA55P, AUA699M, AUA557T.