Apparatus

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sensors Mode-S transponder

A0371C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1128L · CESSNA 208 Caravan · operated by ARNE AVIATION LLC

Hex
A0371C
Octal
50033434
Decimal
10,499,868
Country
US
Tail
N1128L
Type
C208
No current signal · last broadcast 10h ago
Flights observed
182
Distinct callsigns
1
Country
US
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S A0371C.

Country allocation

The ICAO 24-bit address A0371C 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 1 distinct

Callsign Airline Flights Last seen
N1128L - 182 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N1128L - Jul 17, 15:10 UTCJul 17, 16:00 UTC50m
2026-07-17 N1128L - Jul 17, 13:05 UTCJul 17, 14:39 UTC1h 35m
2026-07-16 N1128L - Jul 16, 17:20 UTCJul 16, 17:49 UTC30m
2026-07-16 N1128L - Jul 16, 15:45 UTCJul 16, 16:40 UTC55m
2026-07-16 N1128L - Jul 16, 14:20 UTCJul 16, 15:14 UTC55m
2026-07-16 N1128L - Jul 16, 12:49 UTCJul 16, 13:49 UTC1h 0m
2026-07-14 N1128L - Jul 14, 12:30 UTCJul 14, 16:20 UTC3h 50m
2026-07-13 N1128L - Jul 13, 20:00 UTCJul 13, 20:15 UTC15m
2026-07-13 N1128L - Jul 13, 15:25 UTCJul 13, 15:40 UTC15m
2026-07-11 N1128L - Jul 11, 23:25 UTCJul 11, 23:40 UTC15m
2026-07-11 N1128L - Jul 11, 20:45 UTCJul 11, 21:20 UTC35m
2026-07-11 N1128L - Jul 11, 15:10 UTCJul 11, 20:15 UTC5h 5m
2026-07-11 N1128L - Jul 11, 13:50 UTCJul 11, 14:10 UTC20m
2026-07-11 N1128L - Jul 11, 12:55 UTCJul 11, 13:15 UTC20m
2026-07-05 N1128L - Jul 5, 23:15 UTCJul 5, 23:30 UTC15m
2026-07-05 N1128L - Jul 5, 22:25 UTCJul 5, 22:40 UTC15m
2026-07-05 N1128L - Jul 5, 20:35 UTCJul 5, 20:55 UTC20m
2026-07-05 N1128L - Jul 5, 16:30 UTCJul 5, 20:00 UTC3h 30m
2026-07-05 N1128L - Jul 5, 14:35 UTCJul 5, 15:30 UTC55m
2026-07-05 N1128L - Jul 5, 13:40 UTCJul 5, 14:00 UTC20m
2026-07-04 N1128L - Jul 4, 20:35 UTCJul 5, 00:10 UTC3h 35m
2026-07-04 N1128L - Jul 4, 16:45 UTCJul 4, 17:30 UTC45m
2026-07-04 N1128L - Jul 4, 15:05 UTCJul 4, 16:00 UTC55m
2026-07-04 N1128L - Jul 4, 13:30 UTCJul 4, 14:20 UTC50m
2026-07-03 N1128L - Jul 3, 22:50 UTCJul 3, 23:10 UTC20m
2026-07-03 N1128L - Jul 3, 14:35 UTCJul 3, 22:10 UTC7h 35m
2026-07-02 N1128L - Jul 2, 22:20 UTCJul 2, 22:35 UTC15m
2026-07-02 N1128L - Jul 2, 19:00 UTCJul 2, 19:20 UTC20m
2026-07-02 N1128L - Jul 2, 17:20 UTCJul 2, 17:40 UTC20m
2026-07-02 N1128L - Jul 2, 16:10 UTCJul 2, 16:25 UTC15m
2026-06-29 N1128L - Jun 29, 22:44 UTCJun 29, 22:59 UTC15m
2026-06-29 N1128L - Jun 29, 19:24 UTCJun 29, 19:44 UTC20m
2026-06-29 N1128L - Jun 29, 18:19 UTCJun 29, 18:44 UTC25m
2026-06-28 N1128L - Jun 28, 17:25 UTCJun 28, 17:44 UTC20m
2026-06-28 N1128L - Jun 28, 15:40 UTCJun 28, 16:45 UTC1h 5m
2026-06-28 N1128L - Jun 28, 14:50 UTCJun 28, 15:09 UTC20m
2026-06-27 N1128L - Jun 27, 18:04 UTCJun 27, 18:20 UTC15m
2026-06-27 N1128L - Jun 27, 17:14 UTCJun 27, 17:29 UTC15m
2026-06-27 N1128L - Jun 27, 15:45 UTCJun 27, 16:44 UTC1h 0m
2026-06-27 N1128L - Jun 27, 13:40 UTCJun 27, 15:10 UTC1h 30m
2026-06-26 N1128L - Jun 26, 20:44 UTCJun 26, 20:59 UTC15m
2026-06-26 N1128L - Jun 26, 17:44 UTCJun 26, 17:59 UTC15m
2026-06-26 N1128L - Jun 26, 16:00 UTCJun 26, 17:09 UTC1h 10m
2026-06-26 N1128L - Jun 26, 15:10 UTCJun 26, 15:25 UTC15m
2026-06-25 N1128L - Jun 25, 23:39 UTCJun 25, 23:55 UTC15m
2026-06-25 N1128L - Jun 25, 22:45 UTCJun 25, 23:05 UTC20m
2026-06-25 N1128L - Jun 25, 21:35 UTCJun 25, 21:50 UTC15m
2026-06-25 N1128L - Jun 25, 20:05 UTCJun 25, 20:25 UTC20m
2026-06-25 N1128L - Jun 25, 18:10 UTCJun 25, 18:24 UTC15m
2026-06-25 N1128L - Jun 25, 17:05 UTCJun 25, 17:25 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 N1128L page for operator, model, and routing details .

Mode-S A0371C frequently asked

What is Mode-S code A0371C?
A0371C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1128L.
Where is Mode-S A0371C registered?
Mode-S code A0371C 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 A0371C broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0371C, octal 50033434, decimal 10,499,868.
What flights does A0371C operate?
Mode-S A0371C has broadcast 1 distinct callsign, including N1128L.