Apparatus

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sensors Mode-S transponder

A4380A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N371FL · CONVAIR Convairliner · operated by IFL GROUP INC

Hex
A4380A
Octal
51034012
Decimal
10,762,250
Country
US
Tail
N371FL
Type
CVLP
No current signal · last broadcast 1d ago
Flights observed
46
Distinct callsigns
9
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A4380A.

Country allocation

The ICAO 24-bit address A4380A falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 9 distinct

Callsign Airline Flights Last seen
CAY909 Cayman Airways 13 2026-05-26
CAY908 Cayman Airways 13 2026-05-26
CAY2909 Cayman Airways 6 2026-05-20
CAY2908 Cayman Airways 6 2026-05-20
TSU802 Gulf & Caribbean Cargo / Contract Air Cargo 2 2026-05-22
TSU801 Gulf & Caribbean Cargo / Contract Air Cargo 2 2026-05-22
TSU371 Gulf & Caribbean Cargo / Contract Air Cargo 2 2026-05-28
TSU804 Gulf & Caribbean Cargo / Contract Air Cargo 1 2026-05-22
TSU803 Gulf & Caribbean Cargo / Contract Air Cargo 1 2026-05-22

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-05-28 TSU371 PTK → EKX May 28, 20:25 UTCMay 29, 01:00 UTC4h 35m
2026-05-26 CAY908 GCM → MIA May 26, 17:55 UTCMay 26, 18:19 UTC25m
2026-05-26 CAY909 MIA → GCM May 26, 14:05 UTCMay 26, 14:40 UTC35m
2026-05-22 TSU804 NAS → OPF May 22, 21:00 UTCMay 22, 21:25 UTC25m
2026-05-22 TSU803 OPF → NAS May 22, 18:20 UTCMay 22, 18:45 UTC25m
2026-05-22 TSU802 NAS → OPF May 22, 16:05 UTCMay 22, 16:35 UTC30m
2026-05-22 TSU801 OPF → NAS May 22, 13:55 UTCMay 22, 14:20 UTC25m
2026-05-22 TSU371 PTK → EKX May 22, 11:20 UTCMay 22, 11:35 UTC15m
2026-05-21 CAY908 GCM → MIA May 21, 18:45 UTCMay 21, 19:20 UTC35m
2026-05-21 CAY909 MIA → GCM May 21, 14:40 UTCMay 21, 15:00 UTC20m
2026-05-20 CAY2908 GCM → MIA May 20, 17:30 UTCMay 20, 18:00 UTC30m
2026-05-20 CAY2909 MIA → GCM May 20, 13:55 UTCMay 20, 14:25 UTC30m
2026-05-19 CAY908 GCM → MIA May 19, 18:20 UTCMay 19, 18:55 UTC35m
2026-05-19 CAY909 MIA → GCM May 19, 14:25 UTCMay 19, 14:55 UTC30m
2026-05-15 CAY2908 GCM → MIA May 15, 18:10 UTCMay 15, 18:45 UTC35m
2026-05-15 CAY2909 MIA → GCM May 15, 14:35 UTCMay 15, 15:10 UTC34m
2026-05-14 CAY908 GCM → MIA May 14, 18:25 UTCMay 14, 18:50 UTC25m
2026-05-14 CAY909 MIA → GCM May 14, 14:35 UTCMay 14, 15:10 UTC35m
2026-05-13 CAY2908 GCM → MIA May 13, 19:00 UTCMay 13, 19:30 UTC30m
2026-05-13 CAY2909 MIA → GCM May 13, 15:05 UTCMay 13, 15:35 UTC30m
2026-05-12 CAY908 GCM → MIA May 12, 19:00 UTCMay 12, 19:30 UTC30m
2026-05-12 CAY909 MIA → GCM May 12, 15:20 UTCMay 12, 15:50 UTC30m
2026-05-07 CAY908 GCM → MIA May 7, 17:45 UTCMay 7, 18:15 UTC30m
2026-05-07 CAY909 MIA → GCM May 7, 14:00 UTCMay 7, 14:25 UTC25m
2026-05-06 CAY2908 GCM → MIA May 6, 17:15 UTCMay 6, 17:50 UTC34m
2026-05-06 CAY2909 MIA → GCM May 6, 13:20 UTCMay 6, 13:50 UTC30m
2026-05-05 CAY908 GCM → MIA May 5, 18:05 UTCMay 5, 18:40 UTC35m
2026-05-05 CAY909 MIA → GCM May 5, 14:15 UTCMay 5, 14:45 UTC30m
2026-05-01 CAY2908 GCM → MIA May 1, 18:10 UTCMay 1, 18:30 UTC20m
2026-05-01 CAY2909 MIA → GCM May 1, 14:10 UTCMay 1, 14:35 UTC25m
2026-04-30 CAY908 GCM → MIA Apr 30, 18:40 UTCApr 30, 19:00 UTC20m
2026-04-30 CAY909 MIA → GCM Apr 30, 14:00 UTCApr 30, 14:20 UTC20m
2026-04-28 CAY908 GCM → MIA Apr 28, 18:05 UTCApr 28, 18:25 UTC20m
2026-04-28 CAY909 MIA → GCM Apr 28, 14:15 UTCApr 28, 14:35 UTC20m
2026-04-23 CAY908 GCM → MIA Apr 23, 20:00 UTCApr 23, 20:25 UTC25m
2026-04-23 CAY909 MIA → GCM Apr 23, 15:55 UTCApr 23, 16:05 UTC10m
2026-04-21 CAY908 GCM → MIA Apr 21, 18:30 UTCApr 21, 18:45 UTC15m
2026-04-21 CAY909 MIA → GCM Apr 21, 14:35 UTCApr 21, 14:55 UTC20m
2026-04-17 CAY2908 - Apr 17, 19:50 UTCApr 17, 20:25 UTC35m
2026-04-17 CAY2909 - Apr 17, 15:45 UTCApr 17, 16:20 UTC35m
2026-04-16 CAY908 - Apr 16, 20:45 UTCApr 16, 21:10 UTC25m
2026-04-16 CAY909 MIA → GCM Apr 16, 16:30 UTCApr 16, 17:00 UTC30m
2026-04-14 CAY908 - Apr 14, 18:55 UTCApr 14, 19:10 UTC15m
2026-04-14 CAY909 MIA → GCM Apr 14, 14:50 UTCApr 14, 15:15 UTC25m
2026-04-13 TSU802 - Apr 13, 16:40 UTCApr 13, 17:00 UTC20m
2026-04-13 TSU801 OPF → NAS Apr 13, 14:45 UTCApr 13, 15:05 UTC20m

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 N371FL page for operator, model, and routing details .

Mode-S A4380A frequently asked

What is Mode-S code A4380A?
A4380A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N371FL.
Where is Mode-S A4380A registered?
Mode-S code A4380A is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A4380A 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 A4380A, octal 51034012, decimal 10,762,250.
What flights does A4380A operate?
Mode-S A4380A has broadcast 9 distinct callsigns, including CAY909, CAY908, CAY2909, CAY2908, TSU802.