Apparatus

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sensors Mode-S transponder

505F1D

ICAO 24-bit transponder address · allocated to Slovakia

Currently assigned to OM-ATX · BELL 429 GlobalRanger

Hex
505F1D
Octal
24057435
Decimal
5,267,229
Country
SK
Tail
OM-ATX
Type
B429
No current signal · last broadcast 1d ago
Flights observed
59
Distinct callsigns
2
Country
SK
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 505F1D.

Country allocation

The ICAO 24-bit address 505F1D 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 2 distinct

Callsign Airline Flights Last seen
K04 - 57 2026-06-13
OMATX - 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-13 K04 - Jun 13, 11:05 UTCJun 13, 11:50 UTC45m
2026-06-13 K04 - Jun 13, 09:00 UTCJun 13, 09:45 UTC45m
2026-06-12 K04 - Jun 12, 09:20 UTCJun 12, 09:30 UTC10m
2026-06-09 K04 - Jun 9, 13:55 UTCJun 9, 14:40 UTC45m
2026-06-09 K04 - Jun 9, 11:40 UTCJun 9, 12:20 UTC40m
2026-06-09 K04 - Jun 9, 07:30 UTCJun 9, 08:10 UTC40m
2026-06-08 K04 - Jun 8, 08:55 UTCJun 8, 09:05 UTC10m
2026-06-06 K04 - Jun 6, 09:09 UTCJun 6, 09:19 UTC10m
2026-06-06 K04 - Jun 6, 08:25 UTCJun 6, 08:35 UTC10m
2026-06-04 K04 - Jun 4, 08:45 UTCJun 4, 09:20 UTC35m
2026-06-02 K04 - Jun 2, 11:15 UTCJun 2, 11:45 UTC30m
2026-06-02 K04 - Jun 2, 09:35 UTCJun 2, 10:05 UTC30m
2026-05-31 K04 - May 31, 12:35 UTCMay 31, 13:20 UTC45m
2026-05-30 K04 - May 30, 14:25 UTCMay 30, 14:50 UTC25m
2026-05-29 K04 - May 29, 18:00 UTCMay 29, 18:30 UTC30m
2026-05-29 K04 - May 29, 15:50 UTCMay 29, 16:45 UTC55m
2026-05-29 K04 - May 29, 10:05 UTCMay 29, 10:50 UTC45m
2026-05-28 K04 - May 28, 11:15 UTCMay 28, 11:25 UTC10m
2026-05-28 K04 - May 28, 10:30 UTCMay 28, 10:40 UTC10m
2026-05-28 K04 - May 28, 08:15 UTCMay 28, 08:25 UTC10m
2026-05-27 K04 - May 27, 06:25 UTCMay 27, 06:34 UTC10m
2026-05-27 K04 - May 27, 05:35 UTCMay 27, 05:45 UTC10m
2026-05-26 K04 - May 26, 19:15 UTCMay 26, 20:05 UTC50m
2026-05-25 K04 - May 25, 08:40 UTCMay 25, 09:20 UTC40m
2026-05-24 K04 - May 24, 06:15 UTCMay 24, 06:45 UTC30m
2026-05-23 K04 - May 23, 16:40 UTCMay 23, 17:20 UTC40m
2026-05-23 K04 - May 23, 13:50 UTCMay 23, 14:30 UTC40m
2026-05-21 K04 - May 21, 13:30 UTCMay 21, 13:40 UTC10m
2026-05-21 K04 - May 21, 10:15 UTCMay 21, 10:50 UTC35m
2026-05-21 K04 - May 21, 07:55 UTCMay 21, 08:05 UTC10m
2026-05-21 K04 - May 21, 06:00 UTCMay 21, 06:40 UTC40m
2026-05-18 K04 - May 18, 15:00 UTCMay 18, 15:10 UTC10m
2026-05-15 K04 - May 15, 08:20 UTCMay 15, 09:00 UTC40m
2026-05-15 K04 - May 15, 06:25 UTCMay 15, 07:30 UTC1h 5m
2026-05-14 K04 - May 14, 09:25 UTCMay 14, 10:10 UTC45m
2026-05-14 K04 - May 14, 05:35 UTCMay 14, 06:20 UTC45m
2026-05-09 K04 - May 9, 06:50 UTCMay 9, 07:35 UTC45m
2026-05-07 K04 - May 7, 16:10 UTCMay 7, 16:45 UTC35m
2026-05-06 K04 - May 6, 08:10 UTCMay 6, 08:50 UTC40m
2026-05-05 K04 - May 5, 15:20 UTCMay 5, 15:40 UTC20m
2026-05-05 K04 - May 5, 14:30 UTCMay 5, 14:45 UTC15m
2026-05-05 K04 - May 5, 08:00 UTCMay 5, 08:10 UTC10m
2026-05-05 K04 - May 5, 07:05 UTCMay 5, 07:15 UTC10m
2026-05-04 K04 - May 4, 13:00 UTCMay 4, 13:10 UTC10m
2026-05-04 K04 - May 4, 10:30 UTCMay 4, 11:25 UTC55m
2026-05-04 K04 - May 4, 07:20 UTCMay 4, 08:20 UTC1h 0m
2026-05-04 K04 - May 4, 06:30 UTCMay 4, 06:40 UTC10m
2026-05-03 K04 - May 3, 16:55 UTCMay 3, 17:05 UTC10m
2026-05-03 K04 - May 3, 12:00 UTCMay 3, 12:10 UTC10m
2026-05-03 K04 - May 3, 10:55 UTCMay 3, 11:05 UTC10m

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

Mode-S 505F1D frequently asked

What is Mode-S code 505F1D?
505F1D is an ICAO 24-bit transponder address. Allocated to Slovakia. Assigned to OM-ATX.
Where is Mode-S 505F1D registered?
Mode-S code 505F1D is allocated to Slovakia (SK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 505F1D broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 505F1D, octal 24057435, decimal 5,267,229.
What flights does 505F1D operate?
Mode-S 505F1D has broadcast 2 distinct callsigns, including K04, OMATX.