Apparatus

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sensors Mode-S transponder

A3E90C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N351FL · CONVAIR Convairliner · operated by GULF & CARIBBEAN CARGO INC

Hex
A3E90C
Octal
50764414
Decimal
10,742,028
Country
US
Tail
N351FL
Type
CVLP
No current signal · last broadcast 7h ago
Flights observed
63
Distinct callsigns
3
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A3E90C.

Country allocation

The ICAO 24-bit address A3E90C 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 3 distinct

Callsign Airline Flights Last seen
TSU3810 Gulf & Caribbean Cargo / Contract Air Cargo 32 2026-05-29
TSU3811 Gulf & Caribbean Cargo / Contract Air Cargo 30 2026-05-29
TSU351 Gulf & Caribbean Cargo / Contract Air Cargo 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TSU3811 CUU → ELP May 29, 23:15 UTCMay 29, 23:40 UTC25m
2026-05-29 TSU3810 ELP → CUU May 29, 17:40 UTCMay 29, 18:05 UTC25m
2026-05-28 TSU3811 CUU → ELP May 28, 23:25 UTCMay 28, 23:50 UTC25m
2026-05-28 TSU3810 ELP → CUU May 28, 16:50 UTCMay 28, 17:15 UTC25m
2026-05-27 TSU3811 CUU → ELP May 27, 23:05 UTCMay 27, 23:35 UTC30m
2026-05-27 TSU3810 ELP → CUU May 27, 16:30 UTCMay 27, 16:55 UTC25m
2026-05-26 TSU3810 ELP → CUU May 26, 16:45 UTCMay 26, 17:09 UTC25m
2026-05-22 TSU3811 CUU → ELP May 22, 22:55 UTCMay 22, 23:25 UTC30m
2026-05-22 TSU3810 ELP → CUU May 22, 18:05 UTCMay 22, 18:30 UTC25m
2026-05-21 TSU3811 CUU → ELP May 21, 23:15 UTCMay 21, 23:50 UTC35m
2026-05-21 TSU3810 ELP → CUU May 21, 16:40 UTCMay 21, 17:00 UTC20m
2026-05-20 TSU3811 CUU → ELP May 20, 23:15 UTCMay 20, 23:45 UTC30m
2026-05-20 TSU3810 ELP → CUU May 20, 16:35 UTCMay 20, 17:00 UTC25m
2026-05-19 TSU3811 CUU → ELP May 19, 22:55 UTCMay 19, 23:25 UTC30m
2026-05-19 TSU3810 ELP → CUU May 19, 16:45 UTCMay 19, 17:10 UTC25m
2026-05-18 TSU3811 CUU → ELP May 18, 22:45 UTCMay 18, 23:10 UTC25m
2026-05-18 TSU3810 ELP → CUU May 18, 17:05 UTCMay 18, 17:25 UTC20m
2026-05-15 TSU3811 CUU → ELP May 15, 22:55 UTCMay 15, 23:25 UTC30m
2026-05-15 TSU3810 ELP → CUU May 15, 16:35 UTCMay 15, 17:00 UTC25m
2026-05-14 TSU3811 CUU → ELP May 14, 22:55 UTCMay 14, 23:20 UTC25m
2026-05-14 TSU3810 ELP → CUU May 14, 17:00 UTCMay 14, 17:25 UTC25m
2026-05-13 TSU3811 CUU → ELP May 13, 22:55 UTCMay 13, 23:25 UTC30m
2026-05-13 TSU3810 ELP → CUU May 13, 16:15 UTCMay 13, 16:40 UTC25m
2026-05-12 TSU3811 CUU → ELP May 12, 23:01 UTCMay 12, 23:25 UTC25m
2026-05-12 TSU3810 ELP → CUU May 12, 16:55 UTCMay 12, 17:15 UTC20m
2026-05-11 TSU3810 ELP → CUU May 11, 17:00 UTCMay 11, 17:25 UTC25m
2026-05-08 TSU3811 CUU → ELP May 8, 23:30 UTCMay 9, 00:00 UTC30m
2026-05-08 TSU3810 ELP → CUU May 8, 16:40 UTCMay 8, 17:00 UTC20m
2026-05-07 TSU3811 CUU → ELP May 7, 22:50 UTCMay 7, 23:14 UTC25m
2026-05-07 TSU3810 ELP → CUU May 7, 16:50 UTCMay 7, 17:20 UTC30m
2026-05-06 TSU3811 CUU → ELP May 6, 23:05 UTCMay 6, 23:30 UTC25m
2026-05-06 TSU3810 ELP → CUU May 6, 16:40 UTCMay 6, 17:05 UTC25m
2026-05-04 TSU3811 CUU → ELP May 4, 23:05 UTCMay 4, 23:35 UTC30m
2026-05-04 TSU3810 ELP → CUU May 4, 16:50 UTCMay 4, 17:15 UTC25m
2026-04-30 TSU3811 CUU → ELP Apr 30, 23:00 UTCApr 30, 23:35 UTC35m
2026-04-30 TSU3810 ELP → CUU Apr 30, 16:50 UTCApr 30, 17:10 UTC20m
2026-04-29 TSU3811 CUU → ELP Apr 29, 23:15 UTCApr 29, 23:35 UTC20m
2026-04-29 TSU3810 ELP → CUU Apr 29, 16:35 UTCApr 29, 17:01 UTC25m
2026-04-28 TSU3811 CUU → ELP Apr 28, 23:10 UTCApr 28, 23:35 UTC25m
2026-04-28 TSU3810 ELP → CUU Apr 28, 17:00 UTCApr 28, 17:20 UTC20m
2026-04-27 TSU3811 CUU → ELP Apr 27, 22:55 UTCApr 27, 23:20 UTC25m
2026-04-27 TSU3810 ELP → CUU Apr 27, 16:40 UTCApr 27, 17:00 UTC20m
2026-04-24 TSU3811 CUU → ELP Apr 24, 23:20 UTCApr 24, 23:45 UTC25m
2026-04-24 TSU3810 ELP → CUU Apr 24, 16:45 UTCApr 24, 17:10 UTC25m
2026-04-23 TSU3811 CUU → ELP Apr 23, 23:10 UTCApr 23, 23:35 UTC25m
2026-04-23 TSU3810 ELP → CUU Apr 23, 16:55 UTCApr 23, 17:20 UTC25m
2026-04-23 TSU351 FNT → PTK Apr 23, 00:30 UTCApr 23, 01:35 UTC1h 5m
2026-04-22 TSU3811 CUU → ELP Apr 22, 23:00 UTCApr 22, 23:25 UTC25m
2026-04-22 TSU3810 ELP → CUU Apr 22, 16:45 UTCApr 22, 17:05 UTC20m
2026-04-21 TSU3811 CUU → ELP Apr 21, 23:05 UTCApr 21, 23:30 UTC25m

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 N351FL page for operator, model, and routing details .

Mode-S A3E90C frequently asked

What is Mode-S code A3E90C?
A3E90C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N351FL.
Where is Mode-S A3E90C registered?
Mode-S code A3E90C 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 A3E90C broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3E90C, octal 50764414, decimal 10,742,028.
What flights does A3E90C operate?
Mode-S A3E90C has broadcast 3 distinct callsigns, including TSU3810, TSU3811, TSU351.