Apparatus

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sensors Mode-S transponder

49D353

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-JRS · CESSNA 680 Citation Sovereign

Hex
49D353
Octal
22351523
Decimal
4,838,227
Country
CZ
Tail
OK-JRS
Type
C680
No current signal · last broadcast Jul 26, 19:40 UTC
Flights observed
177
Distinct callsigns
20
Country
CZ
Last broadcast
Jul 26, 19:40 UTC

Last known position

Most recent position reported by Mode-S 49D353.

Country allocation

The ICAO 24-bit address 49D353 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 20 distinct

Callsign Airline Flights Last seen
TVS7J - 6 2026-07-12
TVS58J Smart Wings 5 2026-07-26
TVS1J - 5 2026-07-03
TVS8J - 4 2026-07-12
TVS5J Smart Wings 4 2026-06-29
TVS10J - 4 2026-07-20
UGJ1 - 3 2026-07-05
TVS91J - 3 2026-07-01
TVS6J - 3 2026-06-23
TVS57J Smart Wings 3 2026-06-08
TVS54J Smart Wings 3 2026-06-21
TVS53J Smart Wings 3 2026-07-24
TVS48J Smart Wings 3 2026-07-25
TVS47J Smart Wings 3 2026-07-25
TVS46J Smart Wings 3 2026-07-22
TVS43J Smart Wings 3 2026-07-18
TVS24J - 3 2026-07-14
TVS19J Smart Wings 3 2026-07-24
TVS15J - 3 2026-06-28
UGJ2 - 2 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TVS58J MUC → LJU Jul 26, 17:40 UTCJul 26, 19:35 UTC1h 55m
2026-07-26 TVS12J ZRH → WAW Jul 26, 14:15 UTCJul 26, 16:25 UTC2h 10m
2026-07-25 TVS48J TFS → NUE Jul 25, 09:45 UTCJul 25, 12:55 UTC3h 10m
2026-07-25 TVS47J PRG → TFS Jul 25, 06:20 UTCJul 25, 08:15 UTC1h 55m
2026-07-24 TVS53J PRG → BUD Jul 24, 14:35 UTCJul 24, 16:25 UTC1h 50m
2026-07-24 TVS52J DIJ → ATH Jul 24, 10:45 UTCJul 24, 13:20 UTC2h 35m
2026-07-24 TVS19J PRG → CPH Jul 24, 05:05 UTCJul 24, 09:20 UTC4h 15m
2026-07-23 TVS19J PRG → CPH Jul 23, 12:50 UTCJul 24, 09:20 UTC20h 30m
2026-07-23 TVS18J CWL → ESB Jul 23, 10:50 UTCJul 24, 09:20 UTC22h 30m
2026-07-23 TVS18J CWL → ESB Jul 23, 09:45 UTCJul 24, 08:45 UTC23h 0m
2026-07-22 TVP7439 HER → WRO Jul 22, 18:40 UTCJul 22, 18:50 UTC10m
2026-07-22 TVS17J GRS → DBV Jul 22, 12:30 UTCJul 22, 13:55 UTC1h 25m
2026-07-22 TVS46J MMX → MMX Jul 22, 11:10 UTCJul 22, 11:35 UTC25m
2026-07-21 TVS45J GIG → IGU Jul 21, 12:55 UTCJul 21, 15:20 UTC2h 25m
2026-07-21 TVS73J LBG → LPL Jul 21, 11:25 UTCJul 21, 12:00 UTC35m
2026-07-21 TVS72J FAB → BER Jul 21, 09:35 UTCJul 21, 10:30 UTC55m
2026-07-20 TVS71J PRG → WAW Jul 20, 12:30 UTCJul 20, 13:05 UTC35m
2026-07-20 TVS62J NHT → NHT Jul 20, 10:30 UTCJul 20, 12:00 UTC1h 30m
2026-07-20 TVS10J - Jul 20, 07:40 UTCJul 20, 09:05 UTC1h 25m
2026-07-19 TVS98J FRA → PRG Jul 19, 19:20 UTCJul 20, 04:45 UTC9h 25m
2026-07-19 TVS49J GVA → LBA Jul 19, 16:45 UTCJul 19, 18:15 UTC1h 30m
2026-07-19 TVS35J FAB → PRG Jul 19, 15:00 UTCJul 19, 16:10 UTC1h 10m
2026-07-19 TVS34J OPO → SDR Jul 19, 11:20 UTCJul 19, 13:35 UTC2h 15m
2026-07-19 TVP7202 SZZ → AYT Jul 19, 07:40 UTCJul 19, 07:50 UTC10m
2026-07-18 UGJ45 - Jul 18, 13:20 UTCJul 18, 15:55 UTC2h 35m
2026-07-18 UGJ44 - Jul 18, 07:20 UTCJul 18, 10:20 UTC3h 0m
2026-07-18 TVS43J PUY → PUY Jul 18, 03:55 UTCJul 18, 05:30 UTC1h 35m
2026-07-17 TVS25J PRG → PSA Jul 17, 10:10 UTCJul 17, 12:55 UTC2h 45m
2026-07-17 TVS14J ZRH → GWT Jul 17, 07:20 UTCJul 17, 08:49 UTC1h 30m
2026-07-16 TVS13J IBZ → ANR Jul 16, 15:30 UTCJul 16, 17:25 UTC1h 55m
2026-07-16 TVS10J - Jul 16, 09:50 UTCJul 16, 12:14 UTC2h 25m
2026-07-16 UGJ27 PRG → LPL Jul 16, 07:00 UTCJul 16, 08:50 UTC1h 50m
2026-07-15 TVP7473 - Jul 15, 18:30 UTCJul 15, 19:00 UTC30m
2026-07-14 TVS84J - Jul 14, 12:20 UTCJul 14, 14:35 UTC2h 15m
2026-07-14 TVS24J - Jul 14, 08:05 UTCJul 14, 09:15 UTC1h 10m
2026-07-13 UGJ23 IBZ → FAB Jul 13, 15:00 UTCJul 13, 16:55 UTC1h 55m
2026-07-13 TVP7405 - Jul 13, 12:15 UTCJul 13, 12:25 UTC10m
2026-07-13 UGJ12 - Jul 13, 07:05 UTCJul 13, 09:15 UTC2h 10m
2026-07-13 TVS11J - Jul 13, 05:10 UTCJul 13, 06:01 UTC50m
2026-07-13 - - Jul 13, 03:01 UTCJul 13, 03:15 UTC15m
2026-07-12 TVS8J DBV → HAM Jul 12, 10:05 UTCJul 12, 12:10 UTC2h 5m
2026-07-12 TVS9J - Jul 12, 05:35 UTCJul 12, 08:15 UTC2h 40m
2026-07-12 TVS7J - Jul 12, 04:05 UTCJul 12, 05:01 UTC55m
2026-07-11 TVP7423 - Jul 11, 18:30 UTCJul 11, 18:55 UTC25m
2026-07-11 UGJ86 - Jul 11, 15:30 UTCJul 11, 17:40 UTC2h 10m
2026-07-11 UGJ58 - Jul 11, 10:55 UTCJul 11, 13:10 UTC2h 15m
2026-07-10 UGJ30 - Jul 10, 14:55 UTCJul 10, 17:15 UTC2h 20m
2026-07-10 UGJ29 MAN → IBZ Jul 10, 11:25 UTCJul 10, 13:55 UTC2h 30m
2026-07-10 UGJ28 ZRH → MAN Jul 10, 07:40 UTCJul 10, 09:15 UTC1h 35m
2026-07-09 TVS48J - Jul 9, 06:50 UTCJul 9, 08:00 UTC1h 10m

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

Mode-S 49D353 frequently asked

What is Mode-S code 49D353?
49D353 is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-JRS.
Where is Mode-S 49D353 registered?
Mode-S code 49D353 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 49D353 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49D353, octal 22351523, decimal 4,838,227.
What flights does 49D353 operate?
Mode-S 49D353 has broadcast 20 distinct callsigns, including TVS7J, TVS58J, TVS1J, TVS8J, TVS5J.