Apparatus

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sensors Mode-S transponder

3006FB

ICAO 24-bit transponder address · allocated to Italy

Currently assigned to I-DUDE · VANS RV-7

Hex
3006FB
Octal
14003373
Decimal
3,147,515
Country
IT
Tail
I-DUDE
Type
RV7
No current signal · last broadcast 8h ago
Flights observed
5
Distinct callsigns
1
Country
IT
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 3006FB.

Country allocation

The ICAO 24-bit address 3006FB 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
IDUDE - 5 2026-07-19

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-07-19 IDUDE - Jul 19, 06:15 UTCJul 19, 06:30 UTC15m
2026-07-12 IDUDE - Jul 12, 07:05 UTCJul 12, 07:40 UTC35m
2026-06-26 IDUDE - Jun 26, 18:24 UTCJun 26, 18:34 UTC10m
2026-06-21 IDUDE - Jun 21, 07:49 UTCJun 21, 07:59 UTC10m
2026-06-21 IDUDE - Jun 21, 06:35 UTCJun 21, 06:50 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-DUDE page for operator, model, and routing details .

Mode-S 3006FB frequently asked

What is Mode-S code 3006FB?
3006FB is an ICAO 24-bit transponder address. Allocated to Italy. Assigned to I-DUDE.
Where is Mode-S 3006FB registered?
Mode-S code 3006FB is allocated to Italy (IT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3006FB broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3006FB, octal 14003373, decimal 3,147,515.
What flights does 3006FB operate?
Mode-S 3006FB has broadcast 1 distinct callsign, including IDUDE.