Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

505D0B

ICAO 24-bit transponder address · allocated to Slovakia

Currently assigned to OM-BHK · SIKORSKY UH-60 Black Hawk

Hex
505D0B
Octal
24056413
Decimal
5,266,699
Country
SK
Tail
OM-BHK
Type
H60
No current signal · last broadcast 5d ago
Flights observed
58
Distinct callsigns
1
Country
SK
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 505D0B.

Country allocation

The ICAO 24-bit address 505D0B 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
OMBHK - 58 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 OMBHK - Jul 26, 08:55 UTCJul 26, 09:05 UTC10m
2026-07-25 OMBHK - Jul 25, 14:15 UTCJul 25, 14:30 UTC15m
2026-07-24 OMBHK - Jul 24, 15:40 UTCJul 24, 15:50 UTC10m
2026-07-24 OMBHK - Jul 24, 14:30 UTCJul 24, 14:45 UTC15m
2026-07-24 OMBHK - Jul 24, 13:00 UTCJul 24, 13:25 UTC25m
2026-07-24 OMBHK - Jul 24, 12:15 UTCJul 24, 12:25 UTC10m
2026-07-24 OMBHK - Jul 24, 10:10 UTCJul 24, 11:30 UTC1h 20m
2026-07-24 OMBHK - Jul 24, 07:50 UTCJul 24, 09:10 UTC1h 20m
2026-07-24 OMBHK - Jul 24, 06:05 UTCJul 24, 07:10 UTC1h 5m
2026-07-20 OMBHK - Jul 20, 15:50 UTCJul 20, 17:35 UTC1h 45m
2026-07-20 OMBHK BSL → IGS Jul 20, 13:30 UTCJul 20, 15:00 UTC1h 30m
2026-07-20 OMBHK - Jul 20, 12:05 UTCJul 20, 12:25 UTC20m
2026-07-20 OMBHK - Jul 20, 10:30 UTCJul 20, 11:30 UTC1h 0m
2026-07-20 OMBHK - Jul 20, 09:25 UTCJul 20, 09:50 UTC25m
2026-07-20 OMBHK - Jul 20, 08:25 UTCJul 20, 08:50 UTC25m
2026-07-19 OMBHK - Jul 19, 17:30 UTCJul 19, 18:00 UTC30m
2026-07-19 OMBHK - Jul 19, 15:25 UTCJul 19, 15:35 UTC10m
2026-07-19 OMBHK - Jul 19, 06:45 UTCJul 19, 07:30 UTC45m
2026-07-18 OMBHK - Jul 18, 14:10 UTCJul 18, 14:25 UTC15m
2026-07-18 OMBHK - Jul 18, 12:30 UTCJul 18, 13:20 UTC50m
2026-07-18 OMBHK - Jul 18, 11:40 UTCJul 18, 11:55 UTC15m
2026-07-18 OMBHK - Jul 18, 08:05 UTCJul 18, 09:40 UTC1h 35m
2026-07-18 OMBHK - Jul 18, 06:30 UTCJul 18, 06:45 UTC15m
2026-07-16 OMBHK - Jul 16, 17:00 UTCJul 16, 18:05 UTC1h 5m
2026-07-16 OMBHK - Jul 16, 15:49 UTCJul 16, 16:09 UTC20m
2026-07-16 OMBHK - Jul 16, 10:45 UTCJul 16, 10:55 UTC10m
2026-07-15 OMBHK - Jul 15, 11:55 UTCJul 15, 12:05 UTC10m
2026-07-15 OMBHK - Jul 15, 09:40 UTCJul 15, 09:50 UTC10m
2026-07-14 OMBHK - Jul 14, 09:05 UTCJul 14, 09:15 UTC10m
2026-07-13 OMBHK - Jul 13, 17:50 UTCJul 13, 18:00 UTC10m
2026-07-13 OMBHK - Jul 13, 15:05 UTCJul 13, 15:15 UTC10m
2026-07-13 OMBHK - Jul 13, 12:55 UTCJul 13, 13:05 UTC10m
2026-07-13 OMBHK - Jul 13, 11:05 UTCJul 13, 11:15 UTC10m
2026-07-13 OMBHK - Jul 13, 08:55 UTCJul 13, 09:10 UTC15m
2026-07-12 OMBHK - Jul 12, 18:15 UTCJul 12, 18:25 UTC10m
2026-07-12 OMBHK - Jul 12, 16:35 UTCJul 12, 16:45 UTC10m
2026-07-12 OMBHK - Jul 12, 10:25 UTCJul 12, 10:35 UTC10m
2026-07-11 OMBHK - Jul 11, 15:30 UTCJul 11, 15:40 UTC10m
2026-07-11 OMBHK - Jul 11, 11:40 UTCJul 11, 11:50 UTC10m
2026-07-11 OMBHK - Jul 11, 09:40 UTCJul 11, 09:50 UTC10m
2026-07-10 OMBHK - Jul 10, 15:25 UTCJul 10, 16:10 UTC45m
2026-07-10 OMBHK - Jul 10, 12:05 UTCJul 10, 14:05 UTC2h 0m
2026-07-10 OMBHK - Jul 10, 09:40 UTCJul 10, 11:10 UTC1h 30m
2026-07-10 OMBHK - Jul 10, 07:40 UTCJul 10, 08:45 UTC1h 5m
2026-07-09 OMBHK - Jul 9, 18:55 UTCJul 9, 19:10 UTC15m
2026-07-09 OMBHK - Jul 9, 17:20 UTCJul 9, 18:05 UTC45m
2026-07-09 OMBHK - Jul 9, 15:55 UTCJul 9, 16:05 UTC10m
2026-07-08 OMBHK - Jul 8, 18:35 UTCJul 8, 19:00 UTC25m
2026-07-08 OMBHK - Jul 8, 15:20 UTCJul 8, 15:45 UTC25m
2026-06-21 OMBHK PRV → PRV Jun 21, 10:34 UTCJun 21, 11:15 UTC40m

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

Mode-S 505D0B frequently asked

What is Mode-S code 505D0B?
505D0B is an ICAO 24-bit transponder address. Allocated to Slovakia. Assigned to OM-BHK.
Where is Mode-S 505D0B registered?
Mode-S code 505D0B is allocated to Slovakia (SK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 505D0B broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 505D0B, octal 24056413, decimal 5,266,699.
What flights does 505D0B operate?
Mode-S 505D0B has broadcast 1 distinct callsign, including OMBHK.