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sensors Mode-S transponder

A303FF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2937U · CESSNA 172 Skyhawk · operated by HANGAR 47 AVIATION LLC

Hex
A303FF
Octal
50601777
Decimal
10,683,391
Country
US
Tail
N2937U
Type
C172
No current signal · last broadcast 5d ago
Flights observed
91
Distinct callsigns
1
Country
US
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S A303FF.

Country allocation

The ICAO 24-bit address A303FF 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
N2937U - 91 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 N2937U - Jul 9, 14:50 UTCJul 9, 16:00 UTC1h 10m
2026-07-07 N2937U - Jul 7, 13:45 UTCJul 7, 14:20 UTC35m
2026-07-05 N2937U - Jul 5, 13:10 UTCJul 5, 14:00 UTC50m
2026-07-04 N2937U - Jul 4, 01:45 UTCJul 4, 03:20 UTC1h 35m
2026-07-03 N2937U BTF → BTF Jul 3, 18:20 UTCJul 3, 19:00 UTC40m
2026-07-03 N2937U - Jul 3, 15:30 UTCJul 3, 16:10 UTC40m
2026-07-03 N2937U - Jul 3, 01:50 UTCJul 3, 02:40 UTC50m
2026-07-02 N2937U - Jul 2, 02:00 UTCJul 2, 03:05 UTC1h 5m
2026-07-01 N2937U - Jul 1, 01:35 UTCJul 1, 02:30 UTC55m
2026-06-30 N2937U - Jun 30, 15:15 UTCJun 30, 16:05 UTC50m
2026-06-30 N2937U - Jun 30, 01:35 UTCJun 30, 02:40 UTC1h 5m
2026-06-28 N2937U - Jun 28, 13:04 UTCJun 28, 14:04 UTC1h 0m
2026-06-27 N2937U - Jun 27, 16:44 UTCJun 27, 17:39 UTC55m
2026-06-25 N2937U BTF → BTF Jun 25, 13:35 UTCJun 25, 15:04 UTC1h 30m
2026-06-24 N2937U - Jun 24, 01:44 UTCJun 24, 02:34 UTC50m
2026-06-23 N2937U - Jun 23, 23:39 UTCJun 24, 00:34 UTC55m
2026-06-23 N2937U - Jun 23, 21:29 UTCJun 23, 22:44 UTC1h 15m
2026-06-23 N2937U - Jun 23, 19:59 UTCJun 23, 20:29 UTC30m
2026-06-23 N2937U - Jun 23, 18:29 UTCJun 23, 18:50 UTC20m
2026-06-23 N2937U - Jun 23, 16:09 UTCJun 23, 17:15 UTC1h 5m
2026-06-23 N2937U - Jun 23, 02:04 UTCJun 23, 03:09 UTC1h 5m
2026-06-21 N2937U LGU → BTF Jun 21, 18:25 UTCJun 21, 19:09 UTC45m
2026-06-21 N2937U - Jun 21, 14:50 UTCJun 21, 15:40 UTC50m
2026-06-20 N2937U - Jun 20, 19:19 UTCJun 20, 20:14 UTC55m
2026-06-18 N2937U - Jun 18, 02:30 UTCJun 18, 03:25 UTC55m
2026-06-17 N2937U - Jun 17, 23:50 UTCJun 18, 00:40 UTC50m
2026-06-17 N2937U - Jun 17, 16:50 UTCJun 17, 17:50 UTC1h 0m
2026-06-15 N2937U - Jun 15, 16:04 UTCJun 15, 17:45 UTC1h 40m
2026-06-14 N2937U - Jun 14, 13:20 UTCJun 14, 14:35 UTC1h 15m
2026-06-13 N2937U - Jun 13, 16:00 UTCJun 13, 16:45 UTC45m
2026-06-13 N2937U - Jun 13, 14:40 UTCJun 13, 15:30 UTC50m
2026-06-11 N2937U BTF → BTF Jun 11, 15:00 UTCJun 11, 15:55 UTC55m
2026-06-10 N2937U - Jun 10, 02:10 UTCJun 10, 03:20 UTC1h 10m
2026-06-06 N2937U - Jun 6, 03:25 UTCJun 6, 03:40 UTC15m
2026-06-06 N2937U - Jun 6, 02:30 UTCJun 6, 02:40 UTC10m
2026-06-05 N2937U - Jun 5, 23:35 UTCJun 6, 00:20 UTC45m
2026-06-05 N2937U - Jun 5, 21:50 UTCJun 5, 22:15 UTC25m
2026-06-05 N2937U - Jun 5, 19:20 UTCJun 5, 19:40 UTC20m
2026-06-05 N2937U - Jun 5, 17:20 UTCJun 5, 18:00 UTC40m
2026-06-05 N2937U - Jun 5, 02:00 UTCJun 5, 02:55 UTC55m
2026-06-04 N2937U - Jun 4, 01:25 UTCJun 4, 02:30 UTC1h 5m
2026-06-03 N2937U - Jun 3, 15:30 UTCJun 3, 17:10 UTC1h 40m
2026-06-03 N2937U - Jun 3, 13:05 UTCJun 3, 14:20 UTC1h 15m
2026-06-02 N2937U - Jun 2, 02:20 UTCJun 2, 03:10 UTC50m
2026-06-02 N2937U - Jun 2, 00:15 UTCJun 2, 01:10 UTC55m
2026-06-01 N2937U - Jun 1, 18:30 UTCJun 1, 20:05 UTC1h 35m
2026-06-01 N2937U - Jun 1, 01:40 UTCJun 1, 02:45 UTC1h 5m
2026-05-31 N2937U - May 31, 23:35 UTCJun 1, 00:50 UTC1h 15m
2026-05-31 N2937U - May 31, 15:30 UTCMay 31, 16:20 UTC50m
2026-05-23 N2937U - May 23, 20:55 UTCMay 23, 21:50 UTC55m

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 N2937U page for operator, model, and routing details .

Mode-S A303FF frequently asked

What is Mode-S code A303FF?
A303FF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2937U.
Where is Mode-S A303FF registered?
Mode-S code A303FF 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 A303FF broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A303FF, octal 50601777, decimal 10,683,391.
What flights does A303FF operate?
Mode-S A303FF has broadcast 1 distinct callsign, including N2937U.