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sensors Mode-S transponder

505D16

ICAO 24-bit transponder address · allocated to Slovakia

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

Hex
505D16
Octal
24056426
Decimal
5,266,710
Country
SK
Tail
OM-BHB
Type
H60
No current signal · last broadcast 8h ago
Flights observed
63
Distinct callsigns
1
Country
SK
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 505D16.

Country allocation

The ICAO 24-bit address 505D16 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
OMBHB - 63 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 OMBHB - Jul 19, 17:30 UTCJul 19, 18:00 UTC30m
2026-07-19 OMBHB - Jul 19, 08:05 UTCJul 19, 08:40 UTC35m
2026-07-18 OMBHB - Jul 18, 14:10 UTCJul 18, 14:25 UTC15m
2026-07-18 OMBHB - Jul 18, 11:40 UTCJul 18, 12:15 UTC35m
2026-07-18 OMBHB - Jul 18, 08:00 UTCJul 18, 09:40 UTC1h 40m
2026-07-18 OMBHB - Jul 18, 06:30 UTCJul 18, 06:45 UTC15m
2026-07-16 OMBHB - Jul 16, 16:55 UTCJul 16, 18:00 UTC1h 5m
2026-07-16 OMBHB - Jul 16, 15:49 UTCJul 16, 16:09 UTC20m
2026-07-16 OMBHB - Jul 16, 10:45 UTCJul 16, 10:55 UTC10m
2026-07-15 OMBHB - Jul 15, 11:35 UTCJul 15, 11:45 UTC10m
2026-07-15 OMBHB - Jul 15, 09:40 UTCJul 15, 09:50 UTC10m
2026-07-14 OMBHB - Jul 14, 12:55 UTCJul 14, 13:05 UTC10m
2026-07-14 OMBHB - Jul 14, 09:05 UTCJul 14, 09:15 UTC10m
2026-07-13 OMBHB - Jul 13, 17:50 UTCJul 13, 18:00 UTC10m
2026-07-13 OMBHB - Jul 13, 16:10 UTCJul 13, 16:20 UTC10m
2026-07-13 OMBHB - Jul 13, 14:55 UTCJul 13, 15:05 UTC10m
2026-07-13 OMBHB - Jul 13, 12:55 UTCJul 13, 13:05 UTC10m
2026-07-13 OMBHB - Jul 13, 08:55 UTCJul 13, 09:10 UTC15m
2026-07-12 OMBHB - Jul 12, 18:15 UTCJul 12, 18:25 UTC10m
2026-07-12 OMBHB - Jul 12, 16:35 UTCJul 12, 16:45 UTC10m
2026-07-12 OMBHB - Jul 12, 12:50 UTCJul 12, 13:35 UTC45m
2026-07-12 OMBHB - Jul 12, 09:20 UTCJul 12, 11:15 UTC1h 55m
2026-07-12 OMBHB - Jul 12, 07:05 UTCJul 12, 08:10 UTC1h 5m
2026-07-11 OMBHB - Jul 11, 03:40 UTCJul 11, 05:05 UTC1h 25m
2026-07-10 OMBHB - Jul 10, 17:50 UTCJul 10, 19:15 UTC1h 25m
2026-07-09 OMBHB - Jul 9, 17:40 UTCJul 9, 18:35 UTC55m
2026-07-07 OMBHB - Jul 7, 18:25 UTCJul 7, 19:20 UTC55m
2026-07-07 OMBHB - Jul 7, 17:00 UTCJul 7, 17:35 UTC35m
2026-06-30 OMBHB - Jun 30, 08:40 UTCJun 30, 09:20 UTC40m
2026-06-30 OMBHB - Jun 30, 07:20 UTCJun 30, 07:55 UTC35m
2026-06-16 OMBHB - Jun 16, 13:09 UTCJun 16, 14:05 UTC55m
2026-06-16 OMBHB - Jun 16, 10:30 UTCJun 16, 11:40 UTC1h 10m
2026-06-16 OMBHB - Jun 16, 07:25 UTCJun 16, 08:15 UTC50m
2026-06-11 OMBHB - Jun 11, 12:55 UTCJun 11, 13:20 UTC25m
2026-06-11 OMBHB - Jun 11, 12:30 UTCJun 11, 12:50 UTC20m
2026-06-11 OMBHB - Jun 11, 07:30 UTCJun 11, 07:50 UTC20m
2026-06-11 OMBHB - Jun 11, 05:00 UTCJun 11, 05:10 UTC10m
2026-06-05 OMBHB - Jun 5, 13:10 UTCJun 5, 14:30 UTC1h 20m
2026-06-04 OMBHB - Jun 4, 04:50 UTCJun 4, 06:25 UTC1h 35m
2026-06-02 OMBHB - Jun 2, 15:50 UTCJun 2, 16:10 UTC20m
2026-05-29 OMBHB - May 29, 07:55 UTCMay 29, 09:20 UTC1h 25m
2026-05-26 OMBHB - May 26, 14:00 UTCMay 26, 14:30 UTC30m
2026-05-22 OMBHB - May 22, 10:55 UTCMay 22, 11:20 UTC25m
2026-05-22 OMBHB - May 22, 06:15 UTCMay 22, 06:35 UTC20m
2026-05-21 OMBHB - May 21, 15:00 UTCMay 21, 15:20 UTC20m
2026-05-19 OMBHB - May 19, 08:10 UTCMay 19, 08:50 UTC40m
2026-05-13 OMBHB - May 13, 09:55 UTCMay 13, 12:00 UTC2h 5m
2026-05-13 OMBHB - May 13, 07:15 UTCMay 13, 07:55 UTC40m
2026-05-13 OMBHB - May 13, 06:05 UTCMay 13, 06:20 UTC15m
2026-05-12 OMBHB - May 12, 11:50 UTCMay 12, 12:15 UTC25m

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

Mode-S 505D16 frequently asked

What is Mode-S code 505D16?
505D16 is an ICAO 24-bit transponder address. Allocated to Slovakia. Assigned to OM-BHB.
Where is Mode-S 505D16 registered?
Mode-S code 505D16 is allocated to Slovakia (SK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 505D16 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 505D16, octal 24056426, decimal 5,266,710.
What flights does 505D16 operate?
Mode-S 505D16 has broadcast 1 distinct callsign, including OMBHB.