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sensors Mode-S transponder

49D0DF

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-TOY · CESSNA 172 Skyhawk

Hex
49D0DF
Octal
22350337
Decimal
4,837,599
Country
CZ
Tail
OK-TOY
Type
C172
Broadcasting now · callsign OKTOY · 3,000 ft
Flights observed
54
Distinct callsigns
1
Country
CZ
Last broadcast
1h ago

Current position

49D0DF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 49D0DF falls within the block assigned to Czech Republic (CZ) by ICAO Annex 10, Volume III. Every aircraft registered in Czech Republic 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
OKTOY - 54 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OKTOY BRQ → BRQ Jul 14, 07:00 UTCJul 14, 07:35 UTC35m
2026-07-14 OKTOY BRQ → BRQ Jul 14, 05:20 UTCJul 14, 06:05 UTC45m
2026-07-11 OKTOY BRQ → BRQ Jul 11, 07:30 UTCJul 11, 08:05 UTC35m
2026-07-11 OKTOY BRQ → BRQ Jul 11, 06:35 UTCJul 11, 06:55 UTC20m
2026-07-10 OKTOY - Jul 10, 07:25 UTCJul 10, 07:50 UTC25m
2026-07-10 OKTOY BRQ → BRQ Jul 10, 05:50 UTCJul 10, 06:40 UTC50m
2026-07-08 OKTOY BRQ → BRQ Jul 8, 08:10 UTCJul 8, 09:35 UTC1h 25m
2026-07-07 OKTOY BRQ → BRQ Jul 7, 10:40 UTCJul 7, 11:45 UTC1h 5m
2026-06-26 OKTOY BRQ → BRQ Jun 26, 06:25 UTCJun 26, 07:10 UTC45m
2026-06-25 OKTOY BRQ → BRQ Jun 25, 06:35 UTCJun 25, 07:15 UTC40m
2026-06-24 OKTOY BRQ → BRQ Jun 24, 08:24 UTCJun 24, 10:59 UTC2h 35m
2026-06-23 OKTOY BRQ → BRQ Jun 23, 13:59 UTCJun 23, 14:25 UTC25m
2026-06-20 OKTOY BRQ → BRQ Jun 20, 07:00 UTCJun 20, 07:34 UTC35m
2026-06-19 OKTOY BRQ → BRQ Jun 19, 09:44 UTCJun 19, 10:14 UTC30m
2026-06-13 OKTOY BRQ → BRQ Jun 13, 06:15 UTCJun 13, 06:45 UTC30m
2026-06-08 OKTOY BRQ → BRQ Jun 8, 14:15 UTCJun 8, 15:15 UTC1h 0m
2026-06-08 OKTOY BRQ → BRQ Jun 8, 10:50 UTCJun 8, 11:40 UTC50m
2026-06-06 OKTOY BRQ → BRQ Jun 6, 12:14 UTCJun 6, 12:54 UTC40m
2026-06-05 OKTOY - Jun 5, 08:10 UTCJun 5, 09:35 UTC1h 25m
2026-06-05 OKTOY - Jun 5, 06:25 UTCJun 5, 07:20 UTC55m
2026-06-04 OKTOY BRQ → BRQ Jun 4, 13:45 UTCJun 4, 14:20 UTC35m
2026-06-04 OKTOY BRQ → BRQ Jun 4, 08:25 UTCJun 4, 09:50 UTC1h 25m
2026-06-03 OKTOY BRQ → BRQ Jun 3, 08:20 UTCJun 3, 11:05 UTC2h 45m
2026-06-01 OKTOY BRQ → BRQ Jun 1, 07:05 UTCJun 1, 08:05 UTC1h 0m
2026-05-30 OKTOY - May 30, 08:45 UTCMay 30, 09:45 UTC1h 0m
2026-05-29 OKTOY - May 29, 07:20 UTCMay 29, 08:00 UTC40m
2026-05-27 OKTOY BRQ → BRQ May 27, 08:50 UTCMay 27, 10:35 UTC1h 45m
2026-05-26 OKTOY - May 26, 10:10 UTCMay 26, 10:50 UTC40m
2026-05-26 OKTOY BRQ → BRQ May 26, 06:39 UTCMay 26, 07:55 UTC1h 15m
2026-05-21 OKTOY BRQ → BRQ May 21, 14:10 UTCMay 21, 14:40 UTC30m
2026-05-21 OKTOY - May 21, 08:25 UTCMay 21, 09:35 UTC1h 10m
2026-05-20 OKTOY BRQ → BRQ May 20, 14:40 UTCMay 20, 15:55 UTC1h 15m
2026-05-19 OKTOY - May 19, 07:50 UTCMay 19, 09:20 UTC1h 30m
2026-05-18 OKTOY BRQ → BRQ May 18, 12:40 UTCMay 18, 13:25 UTC45m
2026-05-07 OKTOY BRQ → BRQ May 7, 07:05 UTCMay 7, 08:25 UTC1h 20m
2026-05-06 OKTOY BRQ → BRQ May 6, 08:05 UTCMay 6, 09:15 UTC1h 10m
2026-05-04 OKTOY BRQ → BRQ May 4, 07:20 UTCMay 4, 09:05 UTC1h 45m
2026-05-02 OKTOY BRQ → BRQ May 2, 12:00 UTCMay 2, 13:15 UTC1h 15m
2026-04-30 OKTOY BRQ → BRQ Apr 30, 07:20 UTCApr 30, 08:45 UTC1h 25m
2026-04-28 OKTOY BRQ → BRQ Apr 28, 13:30 UTCApr 28, 14:20 UTC50m
2026-04-28 OKTOY - Apr 28, 11:05 UTCApr 28, 11:50 UTC45m
2026-04-28 OKTOY - Apr 28, 09:10 UTCApr 28, 10:10 UTC1h 0m
2026-04-28 OKTOY BRQ → KRK Apr 28, 06:35 UTCApr 28, 08:20 UTC1h 45m
2026-04-27 OKTOY BRQ → BRQ Apr 27, 13:25 UTCApr 27, 14:10 UTC45m
2026-04-27 OKTOY BRQ → BRQ Apr 27, 10:55 UTCApr 27, 12:30 UTC1h 35m
2026-04-24 OKTOY BRQ → BRQ Apr 24, 14:25 UTCApr 24, 14:45 UTC20m
2026-04-24 OKTOY BRQ → BRQ Apr 24, 08:55 UTCApr 24, 09:55 UTC1h 0m
2026-04-24 OKTOY BRQ → BRQ Apr 24, 06:40 UTCApr 24, 08:05 UTC1h 25m
2026-04-22 OKTOY BRQ → BRQ Apr 22, 06:35 UTCApr 22, 08:20 UTC1h 45m
2026-04-17 OKTOY BRQ → BRQ Apr 17, 09:40 UTCApr 17, 10:45 UTC1h 5m

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 OK-TOY page for operator, model, and routing details .

Mode-S 49D0DF frequently asked

What is Mode-S code 49D0DF?
49D0DF is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-TOY.
Where is Mode-S 49D0DF registered?
Mode-S code 49D0DF is allocated to Czech Republic (CZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 49D0DF broadcasting right now?
Yes. Mode-S 49D0DF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49D0DF, octal 22350337, decimal 4,837,599.
What flights does 49D0DF operate?
Mode-S 49D0DF has broadcast 1 distinct callsign, including OKTOY.