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sensors Mode-S transponder

49D4E3

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-SLM · BEECH 200 Super King Air

Hex
49D4E3
Octal
22352343
Decimal
4,838,627
Country
CZ
Tail
OK-SLM
Type
BE20
No current signal · last broadcast 10d ago
Flights observed
56
Distinct callsigns
1
Country
CZ
Last broadcast
10d ago

Last known position

Most recent position reported by Mode-S 49D4E3.

Country allocation

The ICAO 24-bit address 49D4E3 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
OKSLM - 56 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 OKSLM - Jul 26, 11:25 UTCJul 26, 13:40 UTC2h 15m
2026-07-26 OKSLM - Jul 26, 07:55 UTCJul 26, 10:05 UTC2h 10m
2026-07-19 OKSLM - Jul 19, 17:00 UTCJul 19, 18:15 UTC1h 15m
2026-07-19 OKSLM - Jul 19, 14:55 UTCJul 19, 16:05 UTC1h 10m
2026-07-16 OKSLM - Jul 16, 09:15 UTCJul 16, 10:40 UTC1h 25m
2026-07-14 OKSLM - Jul 14, 16:20 UTCJul 14, 17:35 UTC1h 15m
2026-07-14 OKSLM - Jul 14, 14:15 UTCJul 14, 15:25 UTC1h 10m
2026-07-14 OKSLM - Jul 14, 12:20 UTCJul 14, 13:40 UTC1h 20m
2026-07-12 OKSLM - Jul 12, 12:30 UTCJul 12, 13:55 UTC1h 25m
2026-07-12 OKSLM - Jul 12, 07:10 UTCJul 12, 08:20 UTC1h 10m
2026-07-10 OKSLM - Jul 10, 17:55 UTCJul 10, 19:15 UTC1h 20m
2026-07-10 OKSLM - Jul 10, 16:00 UTCJul 10, 17:05 UTC1h 5m
2026-07-07 OKSLM - Jul 7, 10:20 UTCJul 7, 12:45 UTC2h 25m
2026-07-07 OKSLM - Jul 7, 06:30 UTCJul 7, 08:40 UTC2h 10m
2026-07-05 OKSLM - Jul 5, 13:25 UTCJul 5, 17:35 UTC4h 10m
2026-07-05 OKSLM - Jul 5, 10:00 UTCJul 5, 12:15 UTC2h 15m
2026-07-05 OKSLM - Jul 5, 06:05 UTCJul 5, 07:20 UTC1h 15m
2026-07-04 OKSLM - Jul 4, 17:30 UTCJul 4, 18:55 UTC1h 25m
2026-07-04 OKSLM - Jul 4, 14:40 UTCJul 4, 15:45 UTC1h 5m
2026-07-01 OKSLM - Jul 1, 15:15 UTCJul 1, 18:00 UTC2h 45m
2026-07-01 OKSLM - Jul 1, 10:20 UTCJul 1, 12:45 UTC2h 25m
2026-06-29 OKSLM - Jun 29, 17:45 UTCJun 29, 19:09 UTC1h 25m
2026-06-29 OKSLM - Jun 29, 13:44 UTCJun 29, 15:54 UTC2h 10m
2026-06-29 OKSLM - Jun 29, 08:04 UTCJun 29, 12:14 UTC4h 10m
2026-06-28 OKSLM - Jun 28, 19:34 UTCJun 28, 21:14 UTC1h 40m
2026-06-28 OKSLM - Jun 28, 17:10 UTCJun 28, 18:34 UTC1h 25m
2026-06-26 OKSLM - Jun 26, 17:29 UTCJun 26, 18:49 UTC1h 20m
2026-06-26 OKSLM - Jun 26, 12:55 UTCJun 26, 15:10 UTC2h 15m
2026-06-24 OKSLM - Jun 24, 18:09 UTCJun 24, 19:44 UTC1h 35m
2026-06-24 OKSLM - Jun 24, 16:05 UTCJun 24, 17:14 UTC1h 10m
2026-06-24 OKSLM - Jun 24, 14:09 UTCJun 24, 15:14 UTC1h 5m
2026-06-24 OKSLM - Jun 24, 11:29 UTCJun 24, 12:30 UTC1h 0m
2026-06-24 OKSLM - Jun 24, 08:30 UTCJun 24, 09:55 UTC1h 25m
2026-06-24 OKSLM - Jun 24, 06:25 UTCJun 24, 07:40 UTC1h 15m
2026-06-22 OKSLM - Jun 22, 12:05 UTCJun 22, 13:10 UTC1h 5m
2026-06-22 OKSLM - Jun 22, 10:10 UTCJun 22, 11:19 UTC1h 10m
2026-06-17 OKSLM - Jun 17, 13:45 UTCJun 17, 15:10 UTC1h 25m
2026-06-17 OKSLM - Jun 17, 08:20 UTCJun 17, 09:35 UTC1h 15m
2026-06-17 OKSLM - Jun 17, 06:55 UTCJun 17, 07:25 UTC30m
2026-06-15 OKSLM - Jun 15, 07:05 UTCJun 15, 07:35 UTC30m
2026-06-11 OKSLM - Jun 11, 15:35 UTCJun 11, 17:15 UTC1h 40m
2026-06-10 OKSLM - Jun 10, 06:20 UTCJun 10, 08:15 UTC1h 55m
2026-06-06 OKSLM - Jun 6, 10:14 UTCJun 6, 11:45 UTC1h 30m
2026-06-06 OKSLM - Jun 6, 06:05 UTCJun 6, 09:24 UTC3h 20m
2026-06-05 OKSLM - Jun 5, 16:55 UTCJun 5, 21:35 UTC4h 40m
2026-05-24 OKSLM - May 24, 11:15 UTCMay 24, 13:50 UTC2h 35m
2026-05-24 OKSLM - May 24, 08:35 UTCMay 24, 10:30 UTC1h 55m
2026-05-21 OKSLM - May 21, 12:25 UTCMay 21, 15:40 UTC3h 15m
2026-05-21 OKSLM - May 21, 10:40 UTCMay 21, 11:40 UTC1h 0m
2026-05-10 OKSLM - May 10, 08:25 UTCMay 10, 09:45 UTC1h 20m

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

Mode-S 49D4E3 frequently asked

What is Mode-S code 49D4E3?
49D4E3 is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-SLM.
Where is Mode-S 49D4E3 registered?
Mode-S code 49D4E3 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 49D4E3 broadcasting right now?
No active broadcast right now. Last signal was 10d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49D4E3, octal 22352343, decimal 4,838,627.
What flights does 49D4E3 operate?
Mode-S 49D4E3 has broadcast 1 distinct callsign, including OKSLM.