sensors Mode-S transponder

300979

ICAO 24-bit transponder address · allocated to Italy

Currently assigned to I-AVNG · LEARJET 45

Hex
300979
Octal
14004571
Decimal
3,148,153
Country
IT
Tail
I-AVNG
Type
LJ45
No current signal · last broadcast 16h ago
Flights observed
5
Distinct callsigns
2
Country
IT
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 300979.

Country allocation

The ICAO 24-bit address 300979 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 2 distinct

Callsign Airline Flights Last seen
VND001G - 4 2026-04-13
VND01G - 1 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 VND01G - Apr 14, 07:30 UTCApr 14, 08:15 UTC45m
2026-04-13 VND001G - Apr 13, 16:55 UTCApr 13, 18:20 UTC1h 25m
2026-04-13 VND001G - Apr 13, 09:40 UTCApr 13, 10:45 UTC1h 5m
2026-04-13 VND001G - Apr 13, 08:20 UTCApr 13, 08:40 UTC20m
2026-04-13 VND001G - Apr 13, 08:00 UTCApr 13, 08:15 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 I-AVNG page for operator, model, and routing details .

Mode-S 300979 frequently asked

What is Mode-S code 300979?
300979 is an ICAO 24-bit transponder address. Allocated to Italy. Assigned to I-AVNG.
Where is Mode-S 300979 registered?
Mode-S code 300979 is allocated to Italy (IT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 300979 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 300979, octal 14004571, decimal 3,148,153.
What flights does 300979 operate?
Mode-S 300979 has broadcast 2 distinct callsigns, including VND001G, VND01G.