Apparatus

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sensors Mode-S transponder

739598

ICAO 24-bit transponder address · allocated to Israel

Currently assigned to 4X-HLI · AEROPRACT A-32

Hex
739598
Octal
34712630
Decimal
7,574,936
Country
IL
Tail
4X-HLI
Type
AP32
No current signal · last broadcast 2d ago
Flights observed
46
Distinct callsigns
1
Country
IL
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 739598.

Country allocation

The ICAO 24-bit address 739598 falls within the block assigned to Israel (IL) by ICAO Annex 10, Volume III. Every aircraft registered in Israel 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
4XHLI - 46 2026-06-06

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-06-06 4XHLI - Jun 6, 07:20 UTCJun 6, 07:55 UTC35m
2026-06-06 4XHLI - Jun 6, 05:20 UTCJun 6, 05:40 UTC20m
2026-06-05 4XHLI - Jun 5, 15:20 UTCJun 5, 15:55 UTC35m
2026-06-05 4XHLI - Jun 5, 14:10 UTCJun 5, 14:45 UTC35m
2026-06-05 4XHLI - Jun 5, 08:50 UTCJun 5, 09:10 UTC20m
2026-06-05 4XHLI - Jun 5, 03:45 UTCJun 5, 04:00 UTC15m
2026-06-04 4XHLI - Jun 4, 13:20 UTCJun 4, 14:25 UTC1h 5m
2026-06-02 4XHLI - Jun 2, 13:15 UTCJun 2, 13:55 UTC40m
2026-05-30 4XHLI - May 30, 07:15 UTCMay 30, 07:55 UTC40m
2026-05-30 4XHLI - May 30, 05:35 UTCMay 30, 06:15 UTC40m
2026-05-29 4XHLI - May 29, 14:40 UTCMay 29, 15:55 UTC1h 16m
2026-05-29 4XHLI - May 29, 07:30 UTCMay 29, 08:00 UTC30m
2026-05-29 4XHLI - May 29, 05:10 UTCMay 29, 05:25 UTC15m
2026-05-26 4XHLI - May 26, 14:40 UTCMay 26, 15:54 UTC1h 15m
2026-05-24 4XHLI - May 24, 05:00 UTCMay 24, 05:40 UTC40m
2026-05-23 4XHLI - May 23, 14:55 UTCMay 23, 16:10 UTC1h 15m
2026-05-23 4XHLI - May 23, 06:30 UTCMay 23, 07:00 UTC30m
2026-05-23 4XHLI - May 23, 04:05 UTCMay 23, 04:35 UTC30m
2026-05-22 4XHLI - May 22, 13:15 UTCMay 22, 13:30 UTC15m
2026-05-22 4XHLI - May 22, 07:10 UTCMay 22, 07:40 UTC30m
2026-05-22 4XHLI - May 22, 04:25 UTCMay 22, 04:55 UTC30m
2026-05-17 4XHLI - May 17, 15:35 UTCMay 17, 15:50 UTC15m
2026-05-17 4XHLI - May 17, 07:40 UTCMay 17, 09:30 UTC1h 50m
2026-05-16 4XHLI - May 16, 06:35 UTCMay 16, 07:16 UTC40m
2026-05-16 4XHLI - May 16, 05:30 UTCMay 16, 06:01 UTC31m
2026-05-09 4XHLI - May 9, 16:00 UTCMay 9, 16:20 UTC20m
2026-05-09 4XHLI - May 9, 14:05 UTCMay 9, 14:50 UTC45m
2026-05-09 4XHLI - May 9, 07:15 UTCMay 9, 08:00 UTC45m
2026-05-09 4XHLI - May 9, 05:05 UTCMay 9, 05:25 UTC20m
2026-05-02 4XHLI - May 2, 06:45 UTCMay 2, 07:20 UTC35m
2026-05-02 4XHLI - May 2, 05:10 UTCMay 2, 05:45 UTC35m
2026-05-01 4XHLI - May 1, 06:35 UTCMay 1, 07:20 UTC45m
2026-05-01 4XHLI - May 1, 05:05 UTCMay 1, 05:45 UTC40m
2026-04-30 4XHLI - Apr 30, 10:35 UTCApr 30, 10:50 UTC15m
2026-04-30 4XHLI - Apr 30, 08:45 UTCApr 30, 09:00 UTC15m
2026-04-30 4XHLI - Apr 30, 07:20 UTCApr 30, 08:15 UTC55m
2026-04-28 4XHLI - Apr 28, 07:15 UTCApr 28, 07:35 UTC20m
2026-04-25 4XHLI - Apr 25, 14:35 UTCApr 25, 15:25 UTC50m
2026-04-25 4XHLI - Apr 25, 07:55 UTCApr 25, 08:25 UTC30m
2026-04-25 4XHLI - Apr 25, 05:30 UTCApr 25, 05:50 UTC20m
2026-04-24 4XHLI - Apr 24, 14:05 UTCApr 24, 14:25 UTC20m
2026-04-24 4XHLI - Apr 24, 11:35 UTCApr 24, 12:15 UTC40m
2026-04-24 4XHLI - Apr 24, 06:50 UTCApr 24, 07:30 UTC40m
2026-04-24 4XHLI - Apr 24, 05:05 UTCApr 24, 05:40 UTC35m
2026-04-23 4XHLI - Apr 23, 06:35 UTCApr 23, 06:45 UTC10m
2026-04-23 4XHLI - Apr 23, 05:05 UTCApr 23, 05:20 UTC15m

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 4X-HLI page for operator, model, and routing details .

Mode-S 739598 frequently asked

What is Mode-S code 739598?
739598 is an ICAO 24-bit transponder address. Allocated to Israel. Assigned to 4X-HLI.
Where is Mode-S 739598 registered?
Mode-S code 739598 is allocated to Israel (IL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 739598 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 739598, octal 34712630, decimal 7,574,936.
What flights does 739598 operate?
Mode-S 739598 has broadcast 1 distinct callsign, including 4XHLI.