Apparatus

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sensors Mode-S transponder

505EF6

ICAO 24-bit transponder address · allocated to Slovakia

Currently assigned to OM-M350 · DIRECT FLY Alto

Hex
505EF6
Octal
24057366
Decimal
5,267,190
Country
SK
Tail
OM-M350
Type
ALTO
No current signal · last broadcast 17h ago
Flights observed
91
Distinct callsigns
1
Country
SK
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 505EF6.

Country allocation

The ICAO 24-bit address 505EF6 falls within the block assigned to Slovakia (SK) by ICAO Annex 10, Volume III. Every aircraft registered in Slovakia 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
OMM350 - 91 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 OMM350 - Jul 17, 12:10 UTCJul 17, 12:35 UTC25m
2026-07-17 OMM350 - Jul 17, 10:20 UTCJul 17, 10:44 UTC25m
2026-07-17 OMM350 - Jul 17, 07:14 UTCJul 17, 07:30 UTC15m
2026-07-16 OMM350 - Jul 16, 16:49 UTCJul 16, 18:19 UTC1h 30m
2026-07-16 OMM350 - Jul 16, 14:10 UTCJul 16, 15:19 UTC1h 10m
2026-07-12 OMM350 - Jul 12, 06:01 UTCJul 12, 07:01 UTC1h 0m
2026-07-11 OMM350 - Jul 11, 07:50 UTCJul 11, 08:45 UTC55m
2026-07-10 OMM350 - Jul 10, 16:15 UTCJul 10, 17:10 UTC55m
2026-07-10 OMM350 - Jul 10, 14:30 UTCJul 10, 15:35 UTC1h 5m
2026-07-10 OMM350 - Jul 10, 12:55 UTCJul 10, 13:45 UTC50m
2026-07-04 OMM350 - Jul 4, 09:20 UTCJul 4, 09:50 UTC30m
2026-07-04 OMM350 - Jul 4, 08:20 UTCJul 4, 08:40 UTC20m
2026-06-30 OMM350 - Jun 30, 06:55 UTCJun 30, 09:55 UTC3h 0m
2026-06-27 OMM350 - Jun 27, 06:15 UTCJun 27, 06:59 UTC45m
2026-06-26 OMM350 - Jun 26, 16:35 UTCJun 26, 18:20 UTC1h 45m
2026-06-24 OMM350 - Jun 24, 11:14 UTCJun 24, 11:39 UTC25m
2026-06-24 OMM350 - Jun 24, 09:45 UTCJun 24, 10:14 UTC30m
2026-06-24 OMM350 - Jun 24, 07:44 UTCJun 24, 09:09 UTC1h 25m
2026-06-20 OMM350 - Jun 20, 13:34 UTCJun 20, 13:59 UTC25m
2026-06-20 OMM350 - Jun 20, 11:44 UTCJun 20, 12:39 UTC55m
2026-06-20 OMM350 - Jun 20, 09:19 UTCJun 20, 10:20 UTC1h 0m
2026-06-20 OMM350 - Jun 20, 07:44 UTCJun 20, 08:29 UTC45m
2026-06-19 OMM350 - Jun 19, 14:09 UTCJun 19, 15:19 UTC1h 10m
2026-06-19 OMM350 - Jun 19, 08:59 UTCJun 19, 10:19 UTC1h 20m
2026-06-19 OMM350 - Jun 19, 07:49 UTCJun 19, 08:29 UTC40m
2026-06-19 OMM350 - Jun 19, 06:35 UTCJun 19, 07:09 UTC35m
2026-06-17 OMM350 - Jun 17, 15:40 UTCJun 17, 17:15 UTC1h 35m
2026-06-13 OMM350 - Jun 13, 15:05 UTCJun 13, 15:20 UTC15m
2026-06-13 OMM350 - Jun 13, 13:45 UTCJun 13, 14:20 UTC35m
2026-06-13 OMM350 - Jun 13, 10:05 UTCJun 13, 13:00 UTC2h 55m
2026-06-12 OMM350 - Jun 12, 15:05 UTCJun 12, 15:30 UTC25m
2026-06-12 OMM350 - Jun 12, 11:30 UTCJun 12, 12:00 UTC30m
2026-06-07 OMM350 - Jun 7, 06:05 UTCJun 7, 09:45 UTC3h 40m
2026-06-06 OMM350 - Jun 6, 14:50 UTCJun 6, 15:15 UTC25m
2026-06-06 OMM350 - Jun 6, 12:30 UTCJun 6, 13:30 UTC1h 0m
2026-06-02 OMM350 - Jun 2, 13:50 UTCJun 2, 15:00 UTC1h 10m
2026-06-02 OMM350 - Jun 2, 10:20 UTCJun 2, 10:55 UTC35m
2026-06-02 OMM350 - Jun 2, 06:55 UTCJun 2, 07:45 UTC50m
2026-05-31 OMM350 - May 31, 14:55 UTCMay 31, 15:45 UTC50m
2026-05-31 OMM350 - May 31, 10:45 UTCMay 31, 14:15 UTC3h 30m
2026-05-31 OMM350 - May 31, 08:25 UTCMay 31, 10:05 UTC1h 40m
2026-05-29 OMM350 - May 29, 09:45 UTCMay 29, 11:00 UTC1h 15m
2026-05-29 OMM350 - May 29, 04:50 UTCMay 29, 06:10 UTC1h 20m
2026-05-28 OMM350 - May 28, 14:00 UTCMay 28, 15:40 UTC1h 40m
2026-05-23 OMM350 - May 23, 15:30 UTCMay 23, 17:05 UTC1h 35m
2026-05-23 OMM350 - May 23, 14:35 UTCMay 23, 14:55 UTC20m
2026-05-23 OMM350 - May 23, 09:25 UTCMay 23, 13:50 UTC4h 25m
2026-05-23 OMM350 - May 23, 07:55 UTCMay 23, 08:50 UTC55m
2026-05-22 OMM350 - May 22, 15:50 UTCMay 22, 16:20 UTC30m
2026-05-22 OMM350 - May 22, 12:25 UTCMay 22, 13:00 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 OM-M350 page for operator, model, and routing details .

Mode-S 505EF6 frequently asked

What is Mode-S code 505EF6?
505EF6 is an ICAO 24-bit transponder address. Allocated to Slovakia. Assigned to OM-M350.
Where is Mode-S 505EF6 registered?
Mode-S code 505EF6 is allocated to Slovakia (SK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 505EF6 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 505EF6, octal 24057366, decimal 5,267,190.
What flights does 505EF6 operate?
Mode-S 505EF6 has broadcast 1 distinct callsign, including OMM350.