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sensors Mode-S transponder

49D365

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-TSF · BOEING 737-800

Hex
49D365
Octal
22351545
Decimal
4,838,245
Country
CZ
Tail
OK-TSF
Type
B738
Broadcasting now · callsign ISR717 · 33,975 ft
Flights observed
157
Distinct callsigns
20
Country
CZ
Last broadcast
29m ago

Current position

49D365 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 49D365 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
FPO161 Europe Airpost 15 2026-05-04
FPO162 Europe Airpost 14 2026-05-04
ISR728 Israir Airlines 13 2026-05-29
ISR727 Israir Airlines 13 2026-05-29
FPO172 Europe Airpost 13 2026-05-04
FPO171 Europe Airpost 13 2026-05-04
ISR717 Israir Airlines 6 2026-05-30
ISR344 Israir Airlines 6 2026-05-28
ISR343 - 6 2026-05-28
ISR718 Israir Airlines 5 2026-05-25
ISR382 Israir Airlines 4 2026-05-24
ISR381 Israir Airlines 4 2026-05-24
ISR347 Israir Airlines 4 2026-05-26
ISR384 Israir Airlines 3 2026-05-29
ISR383 Israir Airlines 3 2026-05-29
ISR348 Israir Airlines 3 2026-05-26
ISR720 Israir Airlines 2 2026-05-27
ISR719 Israir Airlines 2 2026-05-27
ISR364 Israir Airlines 2 2026-05-10
ISR350 Israir Airlines 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ISR717 TLV → BUD May 30, 03:00 UTCMay 30, 05:15 UTC2h 15m
2026-05-29 ISR384 FCO → TLV May 29, 22:05 UTCMay 30, 01:00 UTC2h 55m
2026-05-29 ISR383 TLV → FCO May 29, 16:00 UTCMay 29, 19:15 UTC3h 15m
2026-05-29 ISR728 BUD → TLV May 29, 12:00 UTCMay 29, 14:45 UTC2h 45m
2026-05-29 ISR727 TLV → SOF May 29, 03:25 UTCMay 29, 06:40 UTC3h 15m
2026-05-28 ISR344 FCO → TLV May 28, 22:55 UTCMay 29, 01:45 UTC2h 50m
2026-05-28 ISR343 TLV → FCO May 28, 15:05 UTCMay 28, 18:20 UTC3h 15m
2026-05-28 ISR728 BUD → TLV May 28, 09:40 UTCMay 28, 12:30 UTC2h 50m
2026-05-28 ISR727 TLV → SOF May 28, 03:10 UTCMay 28, 06:10 UTC3h 0m
2026-05-27 ISR350 FCO → TLV May 27, 22:15 UTCMay 28, 01:15 UTC3h 0m
2026-05-27 ISR349 TLV → FCO May 27, 15:00 UTCMay 27, 18:05 UTC3h 5m
2026-05-27 ISR720 BUD → TLV May 27, 10:10 UTCMay 27, 13:10 UTC3h 0m
2026-05-27 ISR719 TLV → BUD May 27, 02:59 UTCMay 27, 05:49 UTC2h 50m
2026-05-26 ISR348 FCO → TLV May 26, 22:15 UTCMay 27, 01:19 UTC3h 5m
2026-05-26 ISR347 TLV → FCO May 26, 15:09 UTCMay 26, 18:10 UTC3h 0m
2026-05-26 ISR728 BUD → TLV May 26, 09:49 UTCMay 26, 12:54 UTC3h 5m
2026-05-26 ISR727 TLV → SOF May 26, 03:05 UTCMay 26, 05:59 UTC2h 55m
2026-05-25 ISR344 FCO → TLV May 25, 22:10 UTCMay 26, 01:14 UTC3h 5m
2026-05-25 ISR343 TLV → FCO May 25, 14:30 UTCMay 25, 17:40 UTC3h 10m
2026-05-25 ISR718 BUD → TLV May 25, 09:40 UTCMay 25, 12:45 UTC3h 5m
2026-05-25 ISR717 TLV → BUD May 25, 03:10 UTCMay 25, 06:15 UTC3h 5m
2026-05-24 ISR382 FCO → TLV May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 ISR381 TLV → FCO May 24, 14:30 UTCMay 24, 17:50 UTC3h 20m
2026-05-24 ISR728 BUD → TLV May 24, 09:55 UTCMay 24, 13:00 UTC3h 5m
2026-05-24 ISR727 TLV → SOF May 24, 03:15 UTCMay 24, 07:05 UTC3h 50m
2026-05-23 ISR344 FCO → TLV May 23, 22:05 UTCMay 24, 01:05 UTC3h 0m
2026-05-23 ISR343 TLV → FCO May 23, 16:20 UTCMay 23, 19:30 UTC3h 10m
2026-05-23 ISR718 BUD → TLV May 23, 11:45 UTCMay 23, 14:45 UTC3h 0m
2026-05-23 ISR717 TLV → BUD May 23, 03:00 UTCMay 23, 06:05 UTC3h 5m
2026-05-22 ISR384 FCO → TLV May 22, 22:15 UTCMay 23, 01:10 UTC2h 55m
2026-05-22 ISR383 TLV → FCO May 22, 14:30 UTCMay 22, 17:40 UTC3h 10m
2026-05-22 ISR728 BUD → TLV May 22, 10:10 UTCMay 22, 13:10 UTC3h 0m
2026-05-22 ISR727 TLV → SOF May 22, 03:25 UTCMay 22, 06:25 UTC3h 0m
2026-05-21 ISR382 FCO → TLV May 21, 23:00 UTCMay 22, 01:55 UTC2h 55m
2026-05-21 ISR381 TLV → FCO May 21, 17:55 UTCMay 21, 21:00 UTC3h 5m
2026-05-21 ISR728 BUD → TLV May 21, 13:25 UTCMay 21, 16:10 UTC2h 45m
2026-05-21 ISR727 TLV → SOF May 21, 03:25 UTCMay 21, 06:20 UTC2h 55m
2026-05-20 ISR350 FCO → TLV May 20, 22:30 UTCMay 21, 01:30 UTC3h 0m
2026-05-20 ISR349 TLV → FCO May 20, 16:45 UTCMay 20, 20:05 UTC3h 20m
2026-05-20 ISR728 BUD → TLV May 20, 12:05 UTCMay 20, 15:05 UTC3h 0m
2026-05-20 ISR727 TLV → SOF May 20, 03:05 UTCMay 20, 06:05 UTC3h 1m
2026-05-19 ISR348 FCO → TLV May 19, 22:30 UTCMay 20, 01:10 UTC2h 40m
2026-05-19 ISR347 TLV → FCO May 19, 14:15 UTCMay 19, 17:40 UTC3h 25m
2026-05-19 ISR728 BUD → TLV May 19, 10:00 UTCMay 19, 13:00 UTC3h 0m
2026-05-19 ISR727 TLV → SOF May 19, 03:05 UTCMay 19, 06:20 UTC3h 15m
2026-05-18 ISR344 FCO → TLV May 18, 22:20 UTCMay 19, 01:00 UTC2h 40m
2026-05-18 ISR343 TLV → FCO May 18, 14:50 UTCMay 18, 18:15 UTC3h 25m
2026-05-18 ISR718 BUD → TLV May 18, 09:55 UTCMay 18, 12:40 UTC2h 45m
2026-05-18 ISR717 TLV → BUD May 18, 03:50 UTCMay 18, 07:10 UTC3h 20m
2026-05-17 ISR382 FCO → TLV May 17, 22:20 UTCMay 18, 00:55 UTC2h 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-TSF page for operator, model, and routing details .

Mode-S 49D365 frequently asked

What is Mode-S code 49D365?
49D365 is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-TSF.
Where is Mode-S 49D365 registered?
Mode-S code 49D365 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 49D365 broadcasting right now?
Yes. Mode-S 49D365 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49D365, octal 22351545, decimal 4,838,245.
What flights does 49D365 operate?
Mode-S 49D365 has broadcast 20 distinct callsigns, including FPO161, FPO162, ISR728, ISR727, FPO172.