Apparatus

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sensors Mode-S transponder

506E42

ICAO 24-bit transponder address · allocated to Slovenia

Currently assigned to S5-DRI · CESSNA 172 Skyhawk

Hex
506E42
Octal
24067102
Decimal
5,271,106
Country
SI
Tail
S5-DRI
Type
C172
No current signal · last broadcast 10h ago
Flights observed
51
Distinct callsigns
1
Country
SI
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 506E42.

Country allocation

The ICAO 24-bit address 506E42 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 1 distinct

Callsign Airline Flights Last seen
S5DRI - 51 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 S5DRI - Jul 4, 11:10 UTCJul 4, 12:15 UTC1h 5m
2026-07-02 S5DRI IZE → IZE Jul 2, 08:10 UTCJul 2, 09:25 UTC1h 15m
2026-07-01 S5DRI - Jul 1, 18:25 UTCJul 1, 19:00 UTC35m
2026-07-01 S5DRI - Jul 1, 15:55 UTCJul 1, 16:35 UTC40m
2026-07-01 S5DRI - Jul 1, 10:40 UTCJul 1, 12:00 UTC1h 20m
2026-06-29 S5DRI IZE → IZE Jun 29, 08:44 UTCJun 29, 09:50 UTC1h 5m
2026-06-27 S5DRI - Jun 27, 16:14 UTCJun 27, 17:25 UTC1h 10m
2026-06-27 S5DRI - Jun 27, 14:54 UTCJun 27, 15:19 UTC25m
2026-06-27 S5DRI - Jun 27, 10:14 UTCJun 27, 10:54 UTC40m
2026-06-27 S5DRI IZE → KEL Jun 27, 08:20 UTCJun 27, 09:40 UTC1h 20m
2026-06-27 S5DRI - Jun 27, 05:55 UTCJun 27, 06:30 UTC35m
2026-06-26 S5DRI BWE → IZE Jun 26, 18:20 UTCJun 26, 19:24 UTC1h 5m
2026-06-26 S5DRI - Jun 26, 08:20 UTCJun 26, 09:30 UTC1h 10m
2026-06-25 S5DRI - Jun 25, 13:40 UTCJun 25, 14:34 UTC55m
2026-06-25 S5DRI - Jun 25, 11:50 UTCJun 25, 13:35 UTC1h 45m
2026-06-24 S5DRI - Jun 24, 17:20 UTCJun 24, 18:44 UTC1h 25m
2026-06-22 S5DRI - Jun 22, 14:59 UTCJun 22, 15:50 UTC50m
2026-06-22 S5DRI IZE → IZE Jun 22, 09:04 UTCJun 22, 09:45 UTC40m
2026-06-21 S5DRI - Jun 21, 17:24 UTCJun 21, 18:50 UTC1h 25m
2026-06-21 S5DRI - Jun 21, 08:40 UTCJun 21, 09:15 UTC35m
2026-06-21 S5DRI - Jun 21, 07:00 UTCJun 21, 07:25 UTC25m
2026-06-20 S5DRI - Jun 20, 18:34 UTCJun 20, 19:24 UTC50m
2026-06-20 S5DRI - Jun 20, 13:44 UTCJun 20, 14:44 UTC1h 0m
2026-06-20 S5DRI - Jun 20, 09:09 UTCJun 20, 10:34 UTC1h 25m
2026-06-20 S5DRI - Jun 20, 07:34 UTCJun 20, 08:19 UTC45m
2026-06-18 S5DRI - Jun 18, 17:05 UTCJun 18, 17:45 UTC40m
2026-06-18 S5DRI IZE → IZE Jun 18, 14:35 UTCJun 18, 15:20 UTC45m
2026-06-18 S5DRI IZE → IZE Jun 18, 12:25 UTCJun 18, 13:50 UTC1h 25m
2026-06-17 S5DRI - Jun 17, 10:10 UTCJun 17, 11:25 UTC1h 15m
2026-06-16 S5DRI - Jun 16, 17:40 UTCJun 16, 18:25 UTC45m
2026-06-16 S5DRI - Jun 16, 15:05 UTCJun 16, 16:10 UTC1h 5m
2026-06-16 S5DRI - Jun 16, 10:55 UTCJun 16, 11:15 UTC20m
2026-06-16 S5DRI IZE → KEL Jun 16, 09:00 UTCJun 16, 10:04 UTC1h 5m
2026-06-15 S5DRI - Jun 15, 15:45 UTCJun 15, 16:04 UTC20m
2026-06-12 S5DRI IZE → IZE Jun 12, 18:35 UTCJun 12, 19:15 UTC40m
2026-06-12 S5DRI IZE → IZE Jun 12, 16:00 UTCJun 12, 17:15 UTC1h 15m
2026-06-11 S5DRI IZE → IZE Jun 11, 18:15 UTCJun 11, 18:40 UTC25m
2026-06-11 S5DRI JUI → IZE Jun 11, 16:15 UTCJun 11, 17:05 UTC50m
2026-06-11 S5DRI - Jun 11, 10:35 UTCJun 11, 11:40 UTC1h 5m
2026-06-08 S5DRI IZE → IZE Jun 8, 17:05 UTCJun 8, 17:30 UTC25m
2026-06-06 S5DRI - Jun 6, 17:10 UTCJun 6, 18:14 UTC1h 5m
2026-05-28 S5DRI - May 28, 12:50 UTCMay 28, 16:35 UTC3h 45m
2026-05-28 S5DRI - May 28, 08:25 UTCMay 28, 11:10 UTC2h 45m
2026-05-23 S5DRI - May 23, 15:35 UTCMay 23, 16:00 UTC25m
2026-05-20 S5DRI - May 20, 09:30 UTCMay 20, 09:55 UTC25m
2026-05-19 S5DRI - May 19, 08:05 UTCMay 19, 08:30 UTC25m
2026-05-19 S5DRI - May 19, 05:50 UTCMay 19, 07:25 UTC1h 35m
2026-05-19 S5DRI - May 19, 05:00 UTCMay 19, 05:10 UTC10m
2026-05-10 S5DRI - May 10, 08:40 UTCMay 10, 11:15 UTC2h 35m
2026-04-21 S5DRI - Apr 21, 10:35 UTCApr 21, 12:05 UTC1h 30m

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 S5-DRI page for operator, model, and routing details .

Mode-S 506E42 frequently asked

What is Mode-S code 506E42?
506E42 is an ICAO 24-bit transponder address. Allocated to Slovenia. Assigned to S5-DRI.
Where is Mode-S 506E42 registered?
Mode-S code 506E42 is allocated to Slovenia (SI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 506E42 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 506E42, octal 24067102, decimal 5,271,106.
What flights does 506E42 operate?
Mode-S 506E42 has broadcast 1 distinct callsign, including S5DRI.