Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 18m ago
Flights observed
144
Distinct callsigns
20
Country
CZ
Last broadcast
18m ago

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
TVS1J - 5 2026-07-03
TVS8J - 4 2026-07-12
TVS5J Smart Wings 4 2026-06-29
TVS58J - 4 2026-06-08
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
TVS24J - 3 2026-07-14
TVS15J - 3 2026-06-28
UGJ2 - 2 2026-07-07
TVS97J - 2 2026-07-01
TVS92J Smart Wings 2 2026-06-19
TVS89J - 2 2026-06-21
TVS88J - 2 2026-06-18
TVS87J - 2 2026-06-18
TVS84J - 2 2026-07-14
TVS77J Smart Wings 2 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-09 TVS43J - Jul 9, 04:15 UTCJul 9, 05:40 UTC1h 25m
2026-07-07 UGJ2 BQH → PRG Jul 7, 18:45 UTCJul 7, 20:15 UTC1h 30m
2026-07-07 UGJ22 PRG → BQH Jul 7, 13:40 UTCJul 7, 15:25 UTC1h 45m
2026-07-06 TVS42J PMI → PRG Jul 6, 15:20 UTCJul 6, 17:40 UTC2h 20m
2026-07-06 TVS41J - Jul 6, 12:15 UTCJul 6, 14:25 UTC2h 10m
2026-07-05 UGJ1 PRG → BQH Jul 5, 13:50 UTCJul 5, 15:30 UTC1h 40m
2026-07-05 TVS10J - Jul 5, 11:40 UTCJul 5, 13:10 UTC1h 30m
2026-07-05 TVS47J - Jul 5, 09:15 UTCJul 5, 09:55 UTC40m
2026-07-05 TVS84J PRG → CEQ Jul 5, 06:25 UTCJul 5, 07:50 UTC1h 25m
2026-07-04 TVS2J - Jul 4, 00:45 UTCJul 4, 02:10 UTC1h 25m
2026-07-03 TVS1J - Jul 3, 22:30 UTCJul 3, 23:50 UTC1h 20m
2026-07-03 UGJ21 - Jul 3, 14:30 UTCJul 3, 15:50 UTC1h 20m
2026-07-03 UGJ20 - Jul 3, 11:20 UTCJul 3, 13:25 UTC2h 5m
2026-07-03 TVS19J - Jul 3, 06:40 UTCJul 3, 08:10 UTC1h 30m
2026-07-02 TVS38J - Jul 2, 13:05 UTCJul 2, 15:05 UTC2h 0m
2026-07-01 TVS48J - Jul 1, 18:25 UTCJul 1, 19:30 UTC1h 5m
2026-07-01 TVS47J - Jul 1, 15:40 UTCJul 1, 16:05 UTC25m
2026-07-01 TVS97J - Jul 1, 13:20 UTCJul 1, 14:30 UTC1h 10m
2026-07-01 TVS97J - Jul 1, 10:45 UTCJul 1, 11:25 UTC40m
2026-07-01 TVS91J - Jul 1, 08:55 UTCJul 1, 09:50 UTC55m
2026-06-29 TVS1J - Jun 29, 20:09 UTCJun 29, 20:44 UTC35m
2026-06-29 TVS5J BRQ → OLB Jun 29, 17:19 UTCJun 29, 19:44 UTC2h 25m
2026-06-29 TVS5J BRQ → OLB Jun 29, 13:39 UTCJun 29, 14:19 UTC40m
2026-06-29 TVS4J PRG → JMK Jun 29, 10:20 UTCJun 29, 12:45 UTC2h 25m
2026-06-28 TVS16J - Jun 28, 15:40 UTCJun 28, 17:19 UTC1h 40m
2026-06-28 TVS14J - Jun 28, 11:19 UTCJun 28, 12:05 UTC45m
2026-06-28 TVS15J - Jun 28, 09:30 UTCJun 28, 10:00 UTC30m
2026-06-27 TVS13J TFS → ACH Jun 27, 16:49 UTCJun 27, 18:49 UTC2h 0m
2026-06-27 TVS77J FMO → MUC Jun 27, 14:20 UTCJun 27, 16:20 UTC2h 0m
2026-06-26 TVS15J - Jun 26, 08:15 UTCJun 26, 09:59 UTC1h 45m
2026-06-25 TVS7J FMO → LGG Jun 25, 15:54 UTCJun 25, 16:14 UTC20m
2026-06-25 TVS7J FMO → LGG Jun 25, 14:24 UTCJun 25, 15:24 UTC1h 0m
2026-06-25 TVS70J LBG → LBG Jun 25, 10:30 UTCJun 25, 12:04 UTC1h 35m

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 18m ago.
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, TVS1J, TVS8J, TVS5J, TVS58J.