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
Broadcasting now · callsign TSU351 · 23,025 ft
Flights observed
110
Distinct callsigns
3
Country
US
Last broadcast
1h ago

Current position

A3E90C is currently broadcasting. Map zoomed to live position.

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 - 55 2026-07-02
TSU3811 - 53 2026-07-02
TSU351 - 2 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TSU351 - Jul 14, 18:30 UTCJul 14, 19:00 UTC30m
2026-07-02 TSU3811 - Jul 2, 22:55 UTCJul 2, 23:20 UTC25m
2026-07-02 TSU3810 - Jul 2, 17:05 UTCJul 2, 17:25 UTC20m
2026-07-01 TSU3811 - Jul 1, 23:00 UTCJul 1, 23:25 UTC25m
2026-07-01 TSU3810 - Jul 1, 16:35 UTCJul 1, 17:00 UTC25m
2026-06-30 TSU3811 - Jun 30, 23:05 UTCJun 30, 23:35 UTC30m
2026-06-30 TSU3810 - Jun 30, 17:20 UTCJun 30, 17:45 UTC25m
2026-06-29 TSU3811 - Jun 29, 23:09 UTCJun 29, 23:34 UTC25m
2026-06-29 TSU3810 - Jun 29, 17:34 UTCJun 29, 17:55 UTC20m
2026-06-26 TSU3811 - Jun 26, 23:00 UTCJun 26, 23:25 UTC25m
2026-06-26 TSU3810 - Jun 26, 16:44 UTCJun 26, 17:09 UTC25m
2026-06-24 TSU3811 - Jun 24, 23:14 UTCJun 24, 23:40 UTC25m
2026-06-24 TSU3810 - Jun 24, 20:09 UTCJun 24, 20:35 UTC25m
2026-06-23 TSU3811 - Jun 23, 23:00 UTCJun 23, 23:24 UTC25m
2026-06-23 TSU3810 - Jun 23, 16:39 UTCJun 23, 17:04 UTC25m
2026-06-22 TSU3811 - Jun 22, 22:54 UTCJun 22, 23:20 UTC25m
2026-06-22 TSU3810 - Jun 22, 16:40 UTCJun 22, 17:04 UTC25m
2026-06-19 TSU3811 - Jun 19, 23:29 UTCJun 19, 23:54 UTC25m
2026-06-19 TSU3810 ELP → CUU Jun 19, 16:44 UTCJun 19, 17:04 UTC20m
2026-06-18 TSU3811 - Jun 18, 23:00 UTCJun 18, 23:25 UTC25m
2026-06-18 TSU3810 ELP → CUU Jun 18, 17:15 UTCJun 18, 17:35 UTC20m
2026-06-17 TSU3811 - Jun 17, 23:00 UTCJun 17, 23:25 UTC25m
2026-06-17 TSU3810 ELP → CUU Jun 17, 16:45 UTCJun 17, 17:10 UTC25m
2026-06-16 TSU3811 - Jun 16, 23:00 UTCJun 16, 23:30 UTC30m
2026-06-16 TSU3810 ELP → CUU Jun 16, 16:50 UTCJun 16, 17:15 UTC25m
2026-06-15 TSU3811 - Jun 15, 22:59 UTCJun 15, 23:25 UTC25m
2026-06-15 TSU3810 ELP → CUU Jun 15, 17:30 UTCJun 15, 17:54 UTC25m
2026-06-12 TSU3811 - Jun 12, 23:05 UTCJun 12, 23:35 UTC30m
2026-06-12 TSU3810 ELP → CUU Jun 12, 16:50 UTCJun 12, 17:15 UTC25m
2026-06-11 TSU3811 - Jun 11, 23:15 UTCJun 11, 23:45 UTC30m
2026-06-11 TSU3810 ELP → CUU Jun 11, 16:50 UTCJun 11, 17:10 UTC20m
2026-06-10 TSU3811 CUU → ELP Jun 10, 23:00 UTCJun 10, 23:30 UTC30m
2026-06-10 TSU3810 ELP → CUU Jun 10, 16:45 UTCJun 10, 17:10 UTC25m
2026-06-09 TSU3811 CUU → ELP Jun 9, 23:05 UTCJun 9, 23:35 UTC30m
2026-06-09 TSU3810 ELP → CUU Jun 9, 17:40 UTCJun 9, 18:00 UTC20m
2026-06-08 TSU3811 CUU → ELP Jun 8, 23:10 UTCJun 8, 23:35 UTC25m
2026-06-08 TSU3810 ELP → CUU Jun 8, 17:10 UTCJun 8, 17:35 UTC25m
2026-06-05 TSU3811 CUU → ELP Jun 5, 23:00 UTCJun 5, 23:25 UTC25m
2026-06-05 TSU3810 ELP → CUU Jun 5, 16:30 UTCJun 5, 16:55 UTC25m
2026-06-04 TSU3811 CUU → ELP Jun 4, 23:00 UTCJun 4, 23:25 UTC25m
2026-06-04 TSU3810 ELP → CUU Jun 4, 16:55 UTCJun 4, 17:20 UTC25m
2026-06-03 TSU3811 CUU → ELP Jun 3, 23:10 UTCJun 3, 23:30 UTC20m
2026-06-03 TSU3810 ELP → CUU Jun 3, 16:45 UTCJun 3, 17:15 UTC30m
2026-06-02 TSU3811 CUU → ELP Jun 2, 23:10 UTCJun 2, 23:35 UTC25m
2026-06-02 TSU3810 ELP → CUU Jun 2, 17:20 UTCJun 2, 17:45 UTC25m
2026-06-01 TSU3811 CUU → ELP Jun 1, 22:55 UTCJun 1, 23:20 UTC25m
2026-06-01 TSU3810 ELP → CUU Jun 1, 17:05 UTCJun 1, 17:30 UTC25m
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

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?
Yes. Mode-S A3E90C is currently airborne.
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.