Apparatus

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sensors Mode-S transponder

49D034

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-TSR · BOEING 737-800

Hex
49D034
Octal
22350064
Decimal
4,837,428
Country
CZ
Tail
OK-TSR
Type
B738
No current signal · last broadcast 2h ago
Flights observed
126
Distinct callsigns
20
Country
CZ
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 49D034.

Country allocation

The ICAO 24-bit address 49D034 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
ISR762 Israir Airlines 10 2026-06-01
ISR761 Israir Airlines 10 2026-06-01
ISR764 Israir Airlines 7 2026-06-02
ISR894 Israir Airlines 5 2026-05-31
ISR892 Israir Airlines 5 2026-05-28
ISR891 Israir Airlines 5 2026-05-31
ISR763 Israir Airlines 5 2026-06-02
TVS3FH Smart Wings 4 2026-04-23
ISR769 Israir Airlines 4 2026-05-29
TVS4FH Smart Wings 3 2026-04-16
TVS4BD Smart Wings 3 2026-04-19
TVS3BD Smart Wings 3 2026-04-19
ISR897 Israir Airlines 3 2026-06-01
ISR893 Israir Airlines 3 2026-05-30
ISR770 Israir Airlines 3 2026-05-30
ISR766 Israir Airlines 3 2026-05-29
ISR765 Israir Airlines 3 2026-05-29
TVS6N7 Smart Wings 2 2026-05-05
TVS4ZA Smart Wings 2 2026-05-06
TVS4423 Smart Wings 2 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 ISR764 PRG → TLV Jun 2, 14:00 UTCJun 2, 17:25 UTC3h 25m
2026-06-02 ISR763 TLV → BEG Jun 2, 04:20 UTCJun 2, 08:05 UTC3h 45m
2026-06-01 ISR898 TBS → TLV Jun 1, 23:45 UTCJun 2, 02:15 UTC2h 30m
2026-06-01 ISR897 TLV → TBS Jun 1, 17:05 UTCJun 1, 19:15 UTC2h 10m
2026-06-01 ISR762 PRG → TLV Jun 1, 12:20 UTCJun 1, 15:50 UTC3h 30m
2026-06-01 ISR761 TLV → PRG Jun 1, 05:35 UTCJun 1, 09:20 UTC3h 45m
2026-05-31 ISR891 TLV → TBS May 31, 21:55 UTCJun 1, 00:05 UTC2h 10m
2026-05-31 ISR762 PRG → TLV May 31, 16:40 UTCMay 31, 20:05 UTC3h 25m
2026-05-31 ISR761 TLV → PRG May 31, 10:40 UTCMay 31, 14:25 UTC3h 45m
2026-05-31 ISR564 ATH → TLV May 31, 08:25 UTCMay 31, 08:40 UTC15m
2026-05-31 ISR894 TBS → TLV May 31, 00:00 UTCMay 31, 00:55 UTC55m
2026-05-30 ISR893 TLV → TBS May 30, 20:25 UTCMay 30, 22:40 UTC2h 15m
2026-05-30 ISR770 PRG → TLV May 30, 15:40 UTCMay 30, 18:55 UTC3h 15m
2026-05-30 TVS91M AYT → PRG May 30, 06:45 UTCMay 30, 09:40 UTC2h 55m
2026-05-30 TVS92M PRG → AYT May 30, 02:50 UTCMay 30, 05:40 UTC2h 50m
2026-05-29 ISR769 TLV → PRG May 29, 16:00 UTCMay 29, 18:35 UTC2h 35m
2026-05-29 ISR769 TLV → PRG May 29, 14:50 UTCMay 29, 15:40 UTC50m
2026-05-29 ISR766 PRG → TLV May 29, 09:30 UTCMay 29, 13:00 UTC3h 30m
2026-05-29 ISR765 TLV → PRG May 29, 03:40 UTCMay 29, 07:25 UTC3h 45m
2026-05-28 ISR892 TBS → TLV May 28, 23:55 UTCMay 29, 02:20 UTC2h 25m
2026-05-28 ISR891 TLV → TBS May 28, 18:45 UTCMay 28, 20:50 UTC2h 5m
2026-05-28 ISR762 PRG → TLV May 28, 13:40 UTCMay 28, 17:10 UTC3h 30m
2026-05-28 ISR761 TLV → PRG May 28, 04:35 UTCMay 28, 08:15 UTC3h 40m
2026-05-27 ISR892 TBS → TLV May 27, 23:40 UTCMay 28, 02:05 UTC2h 25m
2026-05-27 ISR891 TLV → TBS May 27, 17:05 UTCMay 27, 19:15 UTC2h 10m
2026-05-27 ISR764 PRG → TLV May 27, 12:15 UTCMay 27, 15:40 UTC3h 25m
2026-05-27 ISR763 TLV → BEG May 27, 04:34 UTCMay 27, 08:05 UTC3h 31m
2026-05-26 ISR894 TBS → TLV May 26, 23:45 UTCMay 27, 02:04 UTC2h 20m
2026-05-26 ISR764 PRG → TLV May 26, 12:40 UTCMay 26, 16:20 UTC3h 40m
2026-05-26 ISR763 TLV → BEG May 26, 06:29 UTCMay 26, 07:59 UTC1h 30m
2026-05-25 ISR898 TBS → TLV May 25, 23:45 UTCMay 26, 02:10 UTC2h 25m
2026-05-25 ISR897 TLV → TBS May 25, 19:54 UTCMay 25, 20:15 UTC20m
2026-05-25 ISR897 TLV → TBS May 25, 18:00 UTCMay 25, 18:40 UTC40m
2026-05-25 ISR762 PRG → TLV May 25, 12:15 UTCMay 25, 15:55 UTC3h 40m
2026-05-25 ISR761 TLV → PRG May 25, 04:50 UTCMay 25, 08:25 UTC3h 35m
2026-05-25 ISR892 TBS → TLV May 25, 02:00 UTCMay 25, 02:10 UTC10m
2026-05-24 ISR891 TLV → TBS May 24, 18:15 UTCMay 24, 20:30 UTC2h 15m
2026-05-24 ISR762 PRG → TLV May 24, 13:10 UTCMay 24, 16:40 UTC3h 30m
2026-05-24 ISR761 TLV → PRG May 24, 06:50 UTCMay 24, 08:20 UTC1h 30m
2026-05-24 ISR894 TBS → TLV May 24, 00:25 UTCMay 24, 02:50 UTC2h 25m
2026-05-23 ISR893 TLV → TBS May 23, 20:45 UTCMay 23, 22:55 UTC2h 10m
2026-05-23 ISR770 PRG → TLV May 23, 15:55 UTCMay 23, 19:25 UTC3h 30m
2026-05-22 ISR769 TLV → PRG May 22, 13:50 UTCMay 22, 17:35 UTC3h 45m
2026-05-22 ISR766 PRG → TLV May 22, 08:45 UTCMay 22, 12:20 UTC3h 35m
2026-05-22 ISR765 TLV → PRG May 22, 03:40 UTCMay 22, 07:15 UTC3h 35m
2026-05-21 ISR892 TBS → TLV May 21, 23:30 UTCMay 22, 01:50 UTC2h 20m
2026-05-21 ISR762 PRG → TLV May 21, 12:40 UTCMay 21, 16:05 UTC3h 25m
2026-05-21 ISR761 TLV → PRG May 21, 04:35 UTCMay 21, 08:10 UTC3h 35m
2026-05-20 ISR892 TBS → TLV May 20, 23:55 UTCMay 21, 02:20 UTC2h 25m
2026-05-20 ISR891 TLV → TBS May 20, 18:10 UTCMay 20, 20:30 UTC2h 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-TSR page for operator, model, and routing details .

Mode-S 49D034 frequently asked

What is Mode-S code 49D034?
49D034 is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-TSR.
Where is Mode-S 49D034 registered?
Mode-S code 49D034 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 49D034 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49D034, octal 22350064, decimal 4,837,428.
What flights does 49D034 operate?
Mode-S 49D034 has broadcast 20 distinct callsigns, including ISR762, ISR761, ISR764, ISR894, ISR892.