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sensors Mode-S transponder

300918

ICAO 24-bit transponder address · allocated to Italy

Currently assigned to I-ACMX · CESSNA 172 Skyhawk

Hex
300918
Octal
14004430
Decimal
3,148,056
Country
IT
Tail
I-ACMX
Type
C172
No current signal · last broadcast 1d ago
Flights observed
205
Distinct callsigns
1
Country
IT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 300918.

Country allocation

The ICAO 24-bit address 300918 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 1 distinct

Callsign Airline Flights Last seen
IACMX - 205 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 IACMX MLA → MLA Jul 16, 05:45 UTCJul 16, 06:15 UTC30m
2026-07-15 IACMX - Jul 15, 13:15 UTCJul 15, 14:35 UTC1h 20m
2026-07-15 IACMX - Jul 15, 07:25 UTCJul 15, 08:50 UTC1h 25m
2026-07-15 IACMX - Jul 15, 03:55 UTCJul 15, 05:25 UTC1h 30m
2026-07-13 IACMX REG → MLA Jul 13, 12:55 UTCJul 13, 15:00 UTC2h 5m
2026-07-13 IACMX - Jul 13, 11:15 UTCJul 13, 11:55 UTC40m
2026-07-13 IACMX - Jul 13, 09:20 UTCJul 13, 10:25 UTC1h 5m
2026-07-12 IACMX - Jul 12, 10:50 UTCJul 12, 11:20 UTC30m
2026-07-12 IACMX - Jul 12, 09:05 UTCJul 12, 09:55 UTC50m
2026-07-12 IACMX - Jul 12, 08:05 UTCJul 12, 08:25 UTC20m
2026-07-12 IACMX - Jul 12, 06:40 UTCJul 12, 07:25 UTC45m
2026-07-11 IACMX - Jul 11, 18:10 UTCJul 11, 18:55 UTC45m
2026-07-10 IACMX - Jul 10, 16:45 UTCJul 10, 17:25 UTC40m
2026-07-10 IACMX - Jul 10, 14:35 UTCJul 10, 15:40 UTC1h 5m
2026-07-10 IACMX - Jul 10, 10:10 UTCJul 10, 12:45 UTC2h 35m
2026-07-10 IACMX MLA → MLA Jul 10, 07:00 UTCJul 10, 07:35 UTC35m
2026-07-09 IACMX - Jul 9, 14:50 UTCJul 9, 17:25 UTC2h 35m
2026-07-09 IACMX - Jul 9, 10:05 UTCJul 9, 10:30 UTC25m
2026-07-07 IACMX - Jul 7, 17:35 UTCJul 7, 18:20 UTC45m
2026-07-07 IACMX - Jul 7, 15:30 UTCJul 7, 16:25 UTC55m
2026-07-06 IACMX - Jul 6, 16:25 UTCJul 6, 17:15 UTC50m
2026-07-06 IACMX - Jul 6, 14:05 UTCJul 6, 14:50 UTC45m
2026-07-05 IACMX - Jul 5, 15:25 UTCJul 5, 15:50 UTC25m
2026-07-05 IACMX - Jul 5, 07:40 UTCJul 5, 08:35 UTC55m
2026-07-05 IACMX MLA → MLA Jul 5, 05:00 UTCJul 5, 06:00 UTC1h 0m
2026-07-04 IACMX - Jul 4, 05:35 UTCJul 4, 06:35 UTC1h 0m
2026-07-03 IACMX - Jul 3, 16:50 UTCJul 3, 17:20 UTC30m
2026-07-03 IACMX - Jul 3, 12:40 UTCJul 3, 13:20 UTC40m
2026-07-01 IACMX - Jul 1, 18:20 UTCJul 1, 19:45 UTC1h 25m
2026-07-01 IACMX - Jul 1, 15:35 UTCJul 1, 16:05 UTC30m
2026-07-01 IACMX - Jul 1, 13:50 UTCJul 1, 14:35 UTC45m
2026-07-01 IACMX - Jul 1, 11:35 UTCJul 1, 12:50 UTC1h 15m
2026-07-01 IACMX - Jul 1, 09:10 UTCJul 1, 10:00 UTC50m
2026-06-30 IACMX - Jun 30, 16:50 UTCJun 30, 17:45 UTC55m
2026-06-30 IACMX MLA → MLA Jun 30, 07:30 UTCJun 30, 08:10 UTC40m
2026-06-29 IACMX - Jun 29, 03:54 UTCJun 29, 05:04 UTC1h 10m
2026-06-28 IACMX MLA → MLA Jun 28, 10:39 UTCJun 28, 12:09 UTC1h 30m
2026-06-27 IACMX MLA → MLA Jun 27, 14:14 UTCJun 27, 15:10 UTC55m
2026-06-27 IACMX MLA → MLA Jun 27, 08:44 UTCJun 27, 09:04 UTC20m
2026-06-27 IACMX - Jun 27, 05:59 UTCJun 27, 07:30 UTC1h 30m
2026-06-27 IACMX - Jun 27, 04:49 UTCJun 27, 05:10 UTC20m
2026-06-26 IACMX - Jun 26, 18:29 UTCJun 26, 19:04 UTC35m
2026-06-26 IACMX MLA → MLA Jun 26, 16:30 UTCJun 26, 17:04 UTC35m
2026-06-26 IACMX - Jun 26, 06:54 UTCJun 26, 07:50 UTC55m
2026-06-26 IACMX - Jun 26, 03:50 UTCJun 26, 05:50 UTC2h 0m
2026-06-25 IACMX MLA → MLA Jun 25, 16:45 UTCJun 25, 17:30 UTC45m
2026-06-25 IACMX - Jun 25, 06:55 UTCJun 25, 09:40 UTC2h 45m
2026-06-24 IACMX - Jun 24, 16:45 UTCJun 24, 17:29 UTC45m
2026-06-24 IACMX MLA → MLA Jun 24, 08:35 UTCJun 24, 10:49 UTC2h 15m
2026-06-24 IACMX - Jun 24, 07:15 UTCJun 24, 07:50 UTC35m

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-ACMX page for operator, model, and routing details .

Mode-S 300918 frequently asked

What is Mode-S code 300918?
300918 is an ICAO 24-bit transponder address. Allocated to Italy. Assigned to I-ACMX.
Where is Mode-S 300918 registered?
Mode-S code 300918 is allocated to Italy (IT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 300918 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 300918, octal 14004430, decimal 3,148,056.
What flights does 300918 operate?
Mode-S 300918 has broadcast 1 distinct callsign, including IACMX.