Apparatus

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sensors Mode-S transponder

300A63

ICAO 24-bit transponder address · allocated to Italy

Currently assigned to I-ITYE · AIRBUS A-330-900

Hex
300A63
Octal
14005143
Decimal
3,148,387
Country
IT
Tail
I-ITYE
Type
A339
No current signal · last broadcast 1h ago
Flights observed
95
Distinct callsigns
20
Country
IT
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 300A63.

Country allocation

The ICAO 24-bit address 300A63 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 20 distinct

Callsign Airline Flights Last seen
ITY682 ITA Airways 8 2026-05-05
ITY608 ITA Airways 8 2026-05-29
ITY679 ITA Airways 7 2026-05-21
ITY609 ITA Airways 7 2026-05-29
ITY678 ITA Airways 6 2026-05-21
ITY675 ITA Airways 6 2026-05-27
ITY770 ITA Airways 5 2026-05-23
ITY769 ITA Airways 5 2026-05-23
ITY674 ITA Airways 5 2026-05-26
ITY603 ITA Airways 5 2026-05-01
ITY683 ITA Airways 4 2026-05-06
ITY602 ITA Airways 3 2026-05-01
ITY6MO ITA Airways 2 2026-05-26
ITY6KC ITA Airways 2 2026-05-23
ITY641 ITA Airways 2 2026-05-07
ITY640 ITA Airways 2 2026-05-07
ITY637 ITA Airways 2 2026-05-24
ITY636 ITA Airways 2 2026-05-24
ITY630 ITA Airways 2 2026-05-25
ITY629 ITA Airways 2 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ITY609 JFK → FCO May 29, 20:30 UTCMay 30, 04:20 UTC7h 50m
2026-05-29 ITY608 FCO → JFK May 29, 08:45 UTCMay 29, 17:25 UTC8h 40m
2026-05-28 ITY629 ORD → FCO May 28, 20:25 UTCMay 29, 05:25 UTC9h 0m
2026-05-28 ITY628 FCO → ORD May 28, 07:50 UTCMay 28, 17:20 UTC9h 30m
2026-05-27 ITY675 GRU → FCO May 27, 17:30 UTCMay 28, 04:15 UTC10h 45m
2026-05-26 ITY674 FCO → GRU May 26, 20:50 UTCMay 27, 08:15 UTC11h 25m
2026-05-26 ITY6MO MIA → FCO May 26, 01:20 UTCMay 26, 11:05 UTC9h 45m
2026-05-25 ITY630 FCO → MIA May 25, 12:40 UTCMay 25, 22:34 UTC9h 54m
2026-05-24 ITY637 IAH → FCO May 24, 23:15 UTCMay 25, 09:25 UTC10h 10m
2026-05-24 ITY636 FCO → IAH May 24, 08:55 UTCMay 24, 20:35 UTC11h 40m
2026-05-23 ITY769 DEL → FCO May 23, 22:15 UTCMay 24, 06:20 UTC8h 5m
2026-05-23 ITY770 FCO → DEL May 23, 12:30 UTCMay 23, 19:55 UTC7h 25m
2026-05-23 ITY6KC JFK → FCO May 23, 01:30 UTCMay 23, 09:00 UTC7h 30m
2026-05-22 ITY610 FCO → JFK May 22, 13:35 UTCMay 22, 22:20 UTC8h 45m
2026-05-21 ITY679 GRU → FCO May 21, 22:20 UTCMay 22, 09:10 UTC10h 50m
2026-05-21 ITY678 FCO → GRU May 21, 08:35 UTCMay 21, 20:20 UTC11h 45m
2026-05-20 ITY609 JFK → FCO May 20, 20:35 UTCMay 21, 04:25 UTC7h 50m
2026-05-20 ITY608 FCO → JFK May 20, 08:35 UTCMay 20, 17:35 UTC9h 0m
2026-05-19 ITY675 GRU → FCO May 19, 17:25 UTCMay 20, 04:20 UTC10h 55m
2026-05-18 ITY674 FCO → GRU May 18, 20:35 UTCMay 19, 07:50 UTC11h 15m
2026-05-17 ITY679 GRU → FCO May 17, 22:15 UTCMay 18, 08:45 UTC10h 30m
2026-05-17 ITY678 FCO → GRU May 17, 08:15 UTCMay 17, 20:10 UTC11h 55m
2026-05-16 ITY629 ORD → FCO May 16, 20:35 UTCMay 17, 05:25 UTC8h 50m
2026-05-16 ITY628 FCO → ORD May 16, 07:51 UTCMay 16, 17:50 UTC10h 0m
2026-05-15 ITY673 GIG → FCO May 15, 17:40 UTCMay 16, 03:45 UTC10h 5m
2026-05-14 ITY672 FCO → GIG May 14, 20:40 UTCMay 15, 08:30 UTC11h 50m
2026-05-14 ITY6MO MIA → FCO May 14, 00:05 UTCMay 14, 09:45 UTC9h 40m
2026-05-13 ITY630 FCO → MIA May 13, 10:00 UTCMay 13, 21:10 UTC11h 10m
2026-05-12 ITY675 GRU → FCO May 12, 17:20 UTCMay 13, 03:35 UTC10h 15m
2026-05-11 ITY674 FCO → GRU May 11, 20:45 UTCMay 12, 08:45 UTC12h 0m
2026-05-10 ITY637 IAH → FCO May 10, 23:25 UTCMay 11, 09:35 UTC10h 10m
2026-05-10 ITY636 FCO → IAH May 10, 09:00 UTCMay 10, 20:54 UTC11h 55m
2026-05-09 ITY675 GRU → FCO May 9, 17:15 UTCMay 10, 03:40 UTC10h 25m
2026-05-08 ITY674 FCO → GRU May 8, 20:30 UTCMay 9, 08:30 UTC12h 0m
2026-05-07 ITY641 SFO → FCO May 7, 22:30 UTCMay 8, 10:14 UTC11h 45m
2026-05-07 ITY640 FCO → SFO May 7, 07:35 UTCMay 7, 19:35 UTC12h 0m
2026-05-06 ITY683 EZE → FCO May 6, 04:45 UTCMay 6, 16:45 UTC12h 0m
2026-05-05 ITY682 FCO → EZE May 5, 12:30 UTCMay 6, 02:50 UTC14h 20m
2026-05-05 ITY6KC JFK → FCO May 5, 01:50 UTCMay 5, 09:35 UTC7h 45m
2026-05-04 ITY610 FCO → JFK May 4, 13:35 UTCMay 4, 22:25 UTC8h 51m
2026-05-03 ITY641 SFO → FCO May 3, 23:10 UTCMay 4, 10:55 UTC11h 45m
2026-05-03 ITY640 FCO → SFO May 3, 07:40 UTCMay 3, 20:00 UTC12h 20m
2026-05-02 ITY609 JFK → FCO May 2, 20:15 UTCMay 3, 04:10 UTC7h 54m
2026-05-02 ITY608 FCO → JFK May 2, 08:45 UTCMay 2, 17:25 UTC8h 40m
2026-05-01 ITY603 JFK → FCO May 1, 22:05 UTCMay 2, 06:20 UTC8h 15m
2026-05-01 ITY602 FCO → JFK May 1, 08:00 UTCMay 1, 16:30 UTC8h 30m
2026-04-30 ITY8006 - Apr 30, 17:30 UTCApr 30, 18:00 UTC30m
2026-04-22 ITY8007 CAG → FCO Apr 22, 07:25 UTCApr 22, 07:45 UTC20m
2026-04-20 ITY615 BOS → FCO Apr 20, 21:45 UTCApr 21, 05:30 UTC7h 45m
2026-04-20 ITY614 FCO → BOS Apr 20, 08:50 UTCApr 20, 17:20 UTC8h 30m

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

Mode-S 300A63 frequently asked

What is Mode-S code 300A63?
300A63 is an ICAO 24-bit transponder address. Allocated to Italy. Assigned to I-ITYE.
Where is Mode-S 300A63 registered?
Mode-S code 300A63 is allocated to Italy (IT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 300A63 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 300A63, octal 14005143, decimal 3,148,387.
What flights does 300A63 operate?
Mode-S 300A63 has broadcast 20 distinct callsigns, including ITY682, ITY608, ITY679, ITY609, ITY678.