Apparatus

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sensors Mode-S transponder

A1FDE8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2274B · CESSNA 172R Cutlass RG · operated by AON-ADHARC AIRCRAFT LEASING LLC

Hex
A1FDE8
Octal
50376750
Decimal
10,616,296
Country
US
Tail
N2274B
Type
C72R
No current signal · last broadcast Jul 26, 19:10 UTC
Flights observed
189
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 19:10 UTC

Last known position

Most recent position reported by Mode-S A1FDE8.

Country allocation

The ICAO 24-bit address A1FDE8 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
2274B - 189 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 2274B ASH → ASH Jul 26, 18:15 UTCJul 26, 19:10 UTC55m
2026-07-26 2274B - Jul 26, 14:10 UTCJul 26, 14:30 UTC20m
2026-07-25 2274B - Jul 25, 14:20 UTCJul 25, 14:45 UTC25m
2026-07-25 2274B - Jul 25, 12:05 UTCJul 25, 13:40 UTC1h 35m
2026-07-24 2274B ASH → ASH Jul 24, 19:55 UTCJul 24, 21:00 UTC1h 5m
2026-07-24 2274B - Jul 24, 18:15 UTCJul 24, 19:05 UTC50m
2026-07-24 2274B - Jul 24, 16:10 UTCJul 24, 17:25 UTC1h 15m
2026-07-23 2274B ASH → ASH Jul 23, 20:25 UTCJul 23, 21:15 UTC50m
2026-07-23 2274B - Jul 23, 18:55 UTCJul 23, 19:15 UTC20m
2026-07-23 2274B ASH → ASH Jul 23, 17:55 UTCJul 23, 18:20 UTC25m
2026-07-23 2274B ASH → ASH Jul 23, 14:15 UTCJul 23, 14:30 UTC15m
2026-07-22 2274B - Jul 22, 18:15 UTCJul 22, 19:10 UTC55m
2026-07-21 2274B - Jul 21, 14:20 UTCJul 21, 15:15 UTC55m
2026-07-21 2274B ASH → ASH Jul 21, 12:25 UTCJul 21, 13:20 UTC55m
2026-07-20 2274B LWM → ASH Jul 20, 22:55 UTCJul 20, 23:15 UTC20m
2026-07-20 2274B - Jul 20, 22:20 UTCJul 20, 22:50 UTC30m
2026-07-20 2274B - Jul 20, 16:10 UTCJul 20, 17:10 UTC1h 0m
2026-07-19 2274B - Jul 19, 12:10 UTCJul 19, 12:55 UTC45m
2026-07-18 2274B - Jul 18, 13:45 UTCJul 18, 14:05 UTC20m
2026-07-17 2274B - Jul 17, 15:40 UTCJul 17, 17:05 UTC1h 25m
2026-07-15 2274B ASH → ASH Jul 15, 16:10 UTCJul 15, 16:35 UTC25m
2026-07-12 2274B ASH → ASH Jul 12, 15:55 UTCJul 12, 16:30 UTC35m
2026-07-09 2274B - Jul 9, 23:20 UTCJul 9, 23:35 UTC15m
2026-07-09 2274B - Jul 9, 22:00 UTCJul 9, 22:15 UTC15m
2026-07-09 2274B ASH → ASH Jul 9, 18:20 UTCJul 9, 19:15 UTC55m
2026-07-08 2274B ASH → ASH Jul 8, 22:30 UTCJul 8, 23:20 UTC50m
2026-07-08 2274B - Jul 8, 20:20 UTCJul 8, 21:20 UTC1h 0m
2026-07-08 2274B ASH → ASH Jul 8, 16:20 UTCJul 8, 17:10 UTC50m
2026-07-08 2274B ASH → ASH Jul 8, 13:55 UTCJul 8, 14:30 UTC35m
2026-07-07 2274B - Jul 7, 14:35 UTCJul 7, 15:25 UTC50m
2026-07-07 2274B ASH → ASH Jul 7, 00:15 UTCJul 7, 01:25 UTC1h 10m
2026-07-06 2274B ASH → ASH Jul 6, 22:20 UTCJul 6, 23:20 UTC1h 0m
2026-07-06 2274B - Jul 6, 20:25 UTCJul 6, 21:20 UTC55m
2026-07-06 2274B - Jul 6, 18:30 UTCJul 6, 19:20 UTC50m
2026-07-06 2274B ASH → ASH Jul 6, 15:50 UTCJul 6, 17:10 UTC1h 20m
2026-07-06 2274B ASH → ASH Jul 6, 12:25 UTCJul 6, 13:00 UTC35m
2026-07-05 2274B ASH → ASH Jul 5, 19:20 UTCJul 5, 20:45 UTC1h 25m
2026-07-02 2274B - Jul 2, 16:30 UTCJul 2, 17:25 UTC55m
2026-07-02 2274B - Jul 2, 00:25 UTCJul 2, 01:05 UTC40m
2026-07-01 2274B ASH → ASH Jul 1, 22:35 UTCJul 1, 23:25 UTC50m
2026-07-01 2274B - Jul 1, 18:10 UTCJul 1, 19:50 UTC1h 40m
2026-07-01 2274B - Jul 1, 11:45 UTCJul 1, 12:50 UTC1h 5m
2026-07-01 2274B ASH → ASH Jul 1, 00:10 UTCJul 1, 01:00 UTC50m
2026-06-30 2274B ASH → ASH Jun 30, 18:40 UTCJun 30, 19:05 UTC25m
2026-06-30 2274B ASH → ASH Jun 30, 15:40 UTCJun 30, 17:00 UTC1h 20m
2026-06-30 2274B - Jun 30, 12:40 UTCJun 30, 13:20 UTC40m
2026-06-30 2274B - Jun 30, 00:14 UTCJun 30, 01:09 UTC55m
2026-06-29 2274B ASH → ASH Jun 29, 22:15 UTCJun 29, 23:19 UTC1h 5m
2026-06-29 2274B - Jun 29, 20:09 UTCJun 29, 21:19 UTC1h 10m
2026-06-29 2274B - Jun 29, 16:15 UTCJun 29, 17:14 UTC1h 0m

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 N2274B page for operator, model, and routing details .

Mode-S A1FDE8 frequently asked

What is Mode-S code A1FDE8?
A1FDE8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2274B.
Where is Mode-S A1FDE8 registered?
Mode-S code A1FDE8 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 A1FDE8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1FDE8, octal 50376750, decimal 10,616,296.
What flights does A1FDE8 operate?
Mode-S A1FDE8 has broadcast 1 distinct callsign, including 2274B.