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sensors Mode-S transponder

300A87

ICAO 24-bit transponder address · allocated to Italy

Hex
300A87
Octal
14005207
Decimal
3,148,423
Country
IT
Broadcasting now · callsign ITY218 · 34,000 ft
Flights observed
490
Distinct callsigns
20
Country
IT
Last broadcast
8h ago

Current position

300A87 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 300A87 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
ITY224 - 10 2026-07-15
ITY217 - 10 2026-07-16
ITY247 - 9 2026-07-15
ITY238 - 9 2026-07-15
ITY221 ITA Airways 9 2026-07-18
ITY218 - 9 2026-07-18
ITY227 - 8 2026-07-13
ITY226 - 8 2026-07-13
ITY220 ITA Airways 8 2026-07-21
ITY219 ITA Airways 8 2026-07-21
ITY1278 - 7 2026-07-15
ITY2080 ITA Airways 6 2026-07-21
ITY1297 - 6 2026-07-14
ITY453 - 5 2026-06-19
ITY452 ITA Airways 5 2026-06-19
ITY2045 ITA Airways 5 2026-07-23
ITY154 - 5 2026-07-12
ITY153 - 5 2026-07-12
ITY1389 ITA Airways 5 2026-06-15
ITY1380 - 5 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 ITY2130 FCO → LIN Jul 24, 21:00 UTCJul 24, 21:45 UTC45m
2026-07-24 ITY1608 BRI → FCO Jul 24, 19:00 UTCJul 24, 19:40 UTC40m
2026-07-24 ITY1609 FCO → BRI Jul 24, 17:15 UTCJul 24, 17:55 UTC40m
2026-07-24 ITY1318 BLQ → FCO Jul 24, 15:05 UTCJul 24, 15:50 UTC45m
2026-07-24 ITY1319 FCO → BLQ Jul 24, 13:20 UTCJul 24, 14:00 UTC40m
2026-07-24 ITY159 BRU → FCO Jul 24, 10:00 UTCJul 24, 11:40 UTC1h 40m
2026-07-24 ITY156 FCO → BRU Jul 24, 07:05 UTCJul 24, 08:55 UTC1h 50m
2026-07-23 ITY1712 CTA → FCO Jul 23, 18:40 UTCJul 23, 19:35 UTC55m
2026-07-23 ITY1733 FCO → CTA Jul 23, 16:40 UTCJul 23, 17:30 UTC50m
2026-07-23 ITY1616 BRI → FCO Jul 23, 14:25 UTCJul 23, 15:10 UTC45m
2026-07-23 ITY1613 FCO → BRI Jul 23, 12:50 UTCJul 23, 13:20 UTC30m
2026-07-23 ITY2045 LIN → FCO Jul 23, 09:45 UTCJul 23, 10:35 UTC50m
2026-07-23 ITY451 MUC → LIN Jul 23, 08:00 UTCJul 23, 08:40 UTC40m
2026-07-23 ITY450 LIN → MUC Jul 23, 05:30 UTCJul 23, 06:15 UTC45m
2026-07-22 ITY113 AMS → LIN Jul 22, 19:15 UTCJul 22, 20:25 UTC1h 10m
2026-07-22 ITY112 LIN → AMS Jul 22, 16:25 UTCJul 22, 18:00 UTC1h 35m
2026-07-22 ITY1296 NAP → LIN Jul 22, 13:25 UTCJul 22, 14:30 UTC1h 5m
2026-07-22 ITY1287 LIN → NAP Jul 22, 11:10 UTCJul 22, 12:05 UTC55m
2026-07-21 ITY219 LCY → LIN Jul 21, 19:50 UTCJul 21, 21:10 UTC1h 20m
2026-07-21 ITY220 LIN → LCY Jul 21, 17:20 UTCJul 21, 19:00 UTC1h 40m
2026-07-21 ITY2080 FCO → LIN Jul 21, 15:25 UTCJul 21, 16:20 UTC55m
2026-07-21 ITY1270 NAP → FCO Jul 21, 13:40 UTCJul 21, 14:10 UTC30m
2026-07-21 ITY1269 FCO → NAP Jul 21, 11:40 UTCJul 21, 12:05 UTC25m
2026-07-21 ITY1264 NAP → FCO Jul 21, 09:45 UTCJul 21, 10:20 UTC35m
2026-07-21 ITY1263 FCO → NAP Jul 21, 08:10 UTCJul 21, 08:30 UTC20m
2026-07-21 ITY1312 BLQ → FCO Jul 21, 04:50 UTCJul 21, 05:30 UTC40m
2026-07-20 ITY1321 FCO → BLQ Jul 20, 20:25 UTCJul 20, 21:10 UTC45m
2026-07-20 ITY1320 BLQ → FCO Jul 20, 18:10 UTCJul 20, 18:50 UTC40m
2026-07-20 ITY1317 FCO → BLQ Jul 20, 16:25 UTCJul 20, 17:05 UTC40m
2026-07-20 ITY1178 SUF → FCO Jul 20, 14:10 UTCJul 20, 15:05 UTC55m
2026-07-20 ITY1171 FCO → SUF Jul 20, 12:15 UTCJul 20, 13:00 UTC45m
2026-07-20 ITY2045 - Jul 20, 09:40 UTCJul 20, 10:25 UTC45m
2026-07-20 ITY451 MUC → LIN Jul 20, 07:45 UTCJul 20, 08:30 UTC45m
2026-07-20 ITY450 LIN → MUC Jul 20, 05:45 UTCJul 20, 06:30 UTC45m
2026-07-19 ITY051 LIN → PMI Jul 19, 18:50 UTCJul 19, 20:05 UTC1h 15m
2026-07-19 ITY050 PMI → LIN Jul 19, 15:35 UTCJul 19, 17:00 UTC1h 25m
2026-07-19 ITY1786 PMO → LIN Jul 19, 13:00 UTCJul 19, 14:10 UTC1h 10m
2026-07-19 ITY1787 - Jul 19, 10:40 UTCJul 19, 11:50 UTC1h 10m
2026-07-19 ITY2036 - Jul 19, 08:45 UTCJul 19, 09:35 UTC50m
2026-07-19 ITY1770 PMO → FCO Jul 19, 05:55 UTCJul 19, 06:40 UTC45m
2026-07-18 ITY1IP LIN → PMO Jul 18, 20:45 UTCJul 18, 22:00 UTC1h 15m
2026-07-18 ITY1632 - Jul 18, 17:50 UTCJul 18, 19:00 UTC1h 10m
2026-07-18 ITY1647 LIN → BRI Jul 18, 15:55 UTCJul 18, 17:00 UTC1h 5m
2026-07-18 ITY1786 PMO → LIN Jul 18, 13:30 UTCJul 18, 14:45 UTC1h 15m
2026-07-18 ITY1787 LIN → PMO Jul 18, 11:00 UTCJul 18, 12:20 UTC1h 20m
2026-07-18 ITY221 LCY → LIN Jul 18, 08:15 UTCJul 18, 09:45 UTC1h 30m
2026-07-18 ITY218 LIN → LCY Jul 18, 05:35 UTCJul 18, 07:05 UTC1h 30m
2026-07-17 ITY311 CDG → LIN Jul 17, 21:00 UTCJul 17, 22:00 UTC1h 0m
2026-07-17 ITY358 - Jul 17, 18:10 UTCJul 17, 19:30 UTC1h 20m
2026-07-17 ITY313 - Jul 17, 15:55 UTCJul 17, 16:59 UTC1h 5m

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.

Mode-S 300A87 frequently asked

What is Mode-S code 300A87?
300A87 is an ICAO 24-bit transponder address. Allocated to Italy.
Where is Mode-S 300A87 registered?
Mode-S code 300A87 is allocated to Italy (IT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 300A87 broadcasting right now?
Yes. Mode-S 300A87 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 300A87, octal 14005207, decimal 3,148,423.
What flights does 300A87 operate?
Mode-S 300A87 has broadcast 20 distinct callsigns, including ITY224, ITY217, ITY247, ITY238, ITY221.