sensors Mode-S transponder

300A5B

ICAO 24-bit transponder address · allocated to Italy

Currently assigned to I-FLDR · HAWKER BEECHCRAFT Hawker 750/850

Hex
300A5B
Octal
14005133
Decimal
3,148,379
Country
IT
Tail
I-FLDR
Type
H25B
No current signal · last broadcast 4h ago
Flights observed
40
Distinct callsigns
4
Country
IT
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 300A5B.

Country allocation

The ICAO 24-bit address 300A5B falls within the block assigned to Italy (IT) by ICAO Annex 10, Volume III. Every aircraft registered in Italy 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 4 distinct

Callsign Airline Flights Last seen
SLJ101 - 18 2026-06-03
SLJ102 - 14 2026-06-03
SLJ103 - 5 2026-06-02
SLJ104 - 3 2026-05-29

Recent flights last 40

DateFlightRouteTakeoffLandingDuration
2026-06-03 SLJ101 - Jun 3, 17:05 UTCJun 3, 18:00 UTC55m
2026-06-03 SLJ102 - Jun 3, 14:30 UTCJun 3, 15:15 UTC45m
2026-06-03 SLJ101 LYN → LIN Jun 3, 13:05 UTCJun 3, 13:50 UTC45m
2026-06-03 SLJ101 - Jun 3, 07:40 UTCJun 3, 09:15 UTC1h 35m
2026-06-02 SLJ103 - Jun 2, 18:20 UTCJun 2, 18:40 UTC20m
2026-06-02 SLJ102 - Jun 2, 17:05 UTCJun 2, 17:40 UTC35m
2026-06-02 SLJ101 - Jun 2, 15:40 UTCJun 2, 16:10 UTC30m
2026-05-29 SLJ104 - May 29, 17:05 UTCMay 29, 17:35 UTC30m
2026-05-29 SLJ103 - May 29, 15:20 UTCMay 29, 16:15 UTC55m
2026-05-29 SLJ102 - May 29, 12:40 UTCMay 29, 13:10 UTC30m
2026-05-29 SLJ102 - May 29, 10:45 UTCMay 29, 11:35 UTC50m
2026-05-29 SLJ101 - May 29, 09:25 UTCMay 29, 10:05 UTC40m
2026-05-28 SLJ104 - May 28, 16:20 UTCMay 28, 17:05 UTC45m
2026-05-27 SLJ103 - May 27, 16:40 UTCMay 27, 16:55 UTC15m
2026-05-26 SLJ102 - May 26, 12:10 UTCMay 26, 12:45 UTC35m
2026-05-26 SLJ101 - May 26, 06:44 UTCMay 26, 07:34 UTC50m
2026-05-24 SLJ102 - May 24, 18:30 UTCMay 24, 20:55 UTC2h 25m
2026-05-24 SLJ101 - May 24, 15:05 UTCMay 24, 17:20 UTC2h 15m
2026-05-22 SLJ103 - May 22, 16:55 UTCMay 22, 18:35 UTC1h 40m
2026-05-21 SLJ101 - May 21, 16:55 UTCMay 21, 18:00 UTC1h 5m
2026-05-19 SLJ101 - May 19, 15:15 UTCMay 19, 17:15 UTC2h 0m
2026-05-15 SLJ102 - May 15, 06:50 UTCMay 15, 07:35 UTC45m
2026-05-14 SLJ101 - May 14, 20:20 UTCMay 14, 21:20 UTC1h 0m
2026-05-09 SLJ102 - May 9, 16:10 UTCMay 9, 16:40 UTC30m
2026-05-08 SLJ101 - May 8, 14:10 UTCMay 8, 14:45 UTC35m
2026-04-30 SLJ102 - Apr 30, 11:45 UTCApr 30, 12:40 UTC55m
2026-04-30 SLJ101 - Apr 30, 10:20 UTCApr 30, 11:05 UTC45m
2026-04-29 SLJ104 - Apr 29, 16:35 UTCApr 29, 17:25 UTC50m
2026-04-29 SLJ103 - Apr 29, 15:20 UTCApr 29, 15:55 UTC35m
2026-04-29 SLJ102 - Apr 29, 08:40 UTCApr 29, 09:10 UTC31m
2026-04-28 SLJ101 - Apr 28, 08:15 UTCApr 28, 09:25 UTC1h 10m
2026-04-27 SLJ102 - Apr 27, 09:45 UTCApr 27, 10:30 UTC45m
2026-04-25 SLJ101 - Apr 25, 07:10 UTCApr 25, 07:50 UTC40m
2026-04-24 SLJ102 - Apr 24, 15:15 UTCApr 24, 16:25 UTC1h 10m
2026-04-21 SLJ101 - Apr 21, 12:35 UTCApr 21, 14:10 UTC1h 35m
2026-04-19 SLJ102 - Apr 19, 17:00 UTCApr 19, 17:50 UTC50m
2026-04-16 SLJ101 - Apr 16, 14:15 UTCApr 16, 15:10 UTC55m
2026-04-15 SLJ102 - Apr 15, 13:40 UTCApr 15, 14:35 UTC55m
2026-04-15 SLJ101 - Apr 15, 07:01 UTCApr 15, 07:25 UTC25m
2026-04-15 SLJ101 - Apr 15, 06:35 UTCApr 15, 06:55 UTC20m

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 I-FLDR page for operator, model, and routing details .

Mode-S 300A5B frequently asked

What is Mode-S code 300A5B?
300A5B is an ICAO 24-bit transponder address. Allocated to Italy. Assigned to I-FLDR.
Where is Mode-S 300A5B registered?
Mode-S code 300A5B is allocated to Italy (IT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 300A5B broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 300A5B, octal 14005133, decimal 3,148,379.
What flights does 300A5B operate?
Mode-S 300A5B has broadcast 4 distinct callsigns, including SLJ101, SLJ102, SLJ103, SLJ104.