sensors Mode-S transponder

506F6B

ICAO 24-bit transponder address · allocated to Slovenia

Currently assigned to L2-02 · ALENIA C-27J Spartan

Hex
506F6B
Octal
24067553
Decimal
5,271,403
Country
SI
Tail
L2-02
Type
C27J
No current signal · last broadcast 11h ago
Flights observed
27
Distinct callsigns
7
Country
SI
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 506F6B.

Country allocation

The ICAO 24-bit address 506F6B falls within the block assigned to Slovenia (SI) by ICAO Annex 10, Volume III. Every aircraft registered in Slovenia 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 7 distinct

Callsign Airline Flights Last seen
LSV202 - 17 2026-06-10
MARE01 - 3 2026-06-06
MARE11 - 2 2026-05-26
MARE05 - 2 2026-05-29
MARE23 - 1 2026-05-23
MARE15 - 1 2026-05-20
MARE07 - 1 2026-05-19

Recent flights last 27

DateFlightRouteTakeoffLandingDuration
2026-06-10 LSV202 - Jun 10, 11:05 UTCJun 10, 14:10 UTC3h 5m
2026-06-10 LSV202 - Jun 10, 07:00 UTCJun 10, 09:30 UTC2h 30m
2026-06-09 LSV202 - Jun 9, 11:05 UTCJun 9, 13:50 UTC2h 45m
2026-06-09 LSV202 - Jun 9, 07:15 UTCJun 9, 10:00 UTC2h 45m
2026-06-08 LSV202 - Jun 8, 10:30 UTCJun 8, 12:15 UTC1h 45m
2026-06-08 LSV202 - Jun 8, 07:05 UTCJun 8, 08:40 UTC1h 35m
2026-06-06 MARE01 - Jun 6, 14:00 UTCJun 6, 14:09 UTC10m
2026-06-06 MARE01 - Jun 6, 11:45 UTCJun 6, 11:55 UTC10m
2026-06-05 LSV202 - Jun 5, 10:10 UTCJun 5, 12:00 UTC1h 50m
2026-06-05 LSV202 - Jun 5, 07:10 UTCJun 5, 08:50 UTC1h 40m
2026-06-04 LSV202 - Jun 4, 08:25 UTCJun 4, 11:05 UTC2h 40m
2026-06-01 LSV202 - Jun 1, 12:35 UTCJun 1, 15:20 UTC2h 45m
2026-06-01 LSV202 - Jun 1, 07:35 UTCJun 1, 10:20 UTC2h 45m
2026-05-29 MARE05 - May 29, 09:55 UTCMay 29, 11:05 UTC1h 10m
2026-05-28 LSV202 - May 28, 10:00 UTCMay 28, 11:15 UTC1h 15m
2026-05-28 LSV202 - May 28, 07:10 UTCMay 28, 08:35 UTC1h 25m
2026-05-27 LSV202 - May 27, 11:50 UTCMay 27, 13:00 UTC1h 10m
2026-05-27 LSV202 - May 27, 07:45 UTCMay 27, 09:15 UTC1h 30m
2026-05-26 MARE11 - May 26, 07:24 UTCMay 26, 10:29 UTC3h 5m
2026-05-23 MARE23 - May 23, 10:40 UTCMay 23, 11:35 UTC55m
2026-05-22 MARE01 - May 22, 09:30 UTCMay 22, 09:50 UTC20m
2026-05-20 MARE15 - May 20, 12:20 UTCMay 20, 12:45 UTC25m
2026-05-19 MARE07 - May 19, 11:05 UTCMay 19, 12:05 UTC1h 0m
2026-05-19 MARE11 - May 19, 07:25 UTCMay 19, 08:15 UTC50m
2026-05-18 MARE05 - May 18, 10:10 UTCMay 18, 11:00 UTC50m
2026-04-13 LSV202 - Apr 13, 12:20 UTCApr 13, 13:15 UTC55m
2026-04-13 LSV202 - Apr 13, 08:35 UTCApr 13, 10:35 UTC2h 0m

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 L2-02 page for operator, model, and routing details .

Mode-S 506F6B frequently asked

What is Mode-S code 506F6B?
506F6B is an ICAO 24-bit transponder address. Allocated to Slovenia. Assigned to L2-02.
Where is Mode-S 506F6B registered?
Mode-S code 506F6B is allocated to Slovenia (SI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 506F6B broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 506F6B, octal 24067553, decimal 5,271,403.
What flights does 506F6B operate?
Mode-S 506F6B has broadcast 7 distinct callsigns, including LSV202, MARE01, MARE11, MARE05, MARE23.