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sensors Mode-S transponder

ACC4DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N92141 · CESSNA 172 Skyhawk · operated by HIGH FLIGHT ACADEMY LLC

Hex
ACC4DF
Octal
53142337
Decimal
11,322,591
Country
US
Tail
N92141
Type
C172
No current signal · last broadcast Jul 25, 13:40 UTC
Flights observed
385
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 13:40 UTC

Last known position

Most recent position reported by Mode-S ACC4DF.

Country allocation

The ICAO 24-bit address ACC4DF 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
N92141 - 385 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N92141 BTP → BTP Jul 25, 13:00 UTCJul 25, 13:40 UTC40m
2026-07-24 N92141 BTP → BTP Jul 24, 20:20 UTCJul 24, 21:30 UTC1h 10m
2026-07-24 N92141 BTP → BTP Jul 24, 17:20 UTCJul 24, 19:40 UTC2h 20m
2026-07-24 N92141 BTP → BTP Jul 24, 15:50 UTCJul 24, 16:45 UTC55m
2026-07-23 N92141 - Jul 23, 19:00 UTCJul 23, 19:50 UTC50m
2026-07-23 N92141 - Jul 23, 17:45 UTCJul 23, 18:20 UTC35m
2026-07-23 N92141 BTP → BTP Jul 23, 16:05 UTCJul 23, 17:00 UTC55m
2026-07-23 N92141 BTP → BTP Jul 23, 14:55 UTCJul 23, 15:15 UTC20m
2026-07-23 N92141 BTP → BTP Jul 23, 13:00 UTCJul 23, 13:45 UTC45m
2026-07-22 N92141 BTP → BTP Jul 22, 23:40 UTCJul 23, 00:35 UTC55m
2026-07-22 N92141 BTP → BTP Jul 22, 21:55 UTCJul 22, 22:45 UTC50m
2026-07-22 N92141 BTP → BTP Jul 22, 20:35 UTCJul 22, 21:15 UTC40m
2026-07-22 N92141 BTP → BTP Jul 22, 16:00 UTCJul 22, 17:25 UTC1h 25m
2026-07-22 N92141 BTP → BTP Jul 22, 14:50 UTCJul 22, 15:15 UTC25m
2026-07-21 N92141 BTP → BTP Jul 21, 13:00 UTCJul 21, 13:50 UTC50m
2026-07-20 N92141 BTP → BTP Jul 20, 23:25 UTCJul 21, 00:30 UTC1h 4m
2026-07-20 N92141 - Jul 20, 22:05 UTCJul 20, 22:45 UTC40m
2026-07-20 N92141 - Jul 20, 20:35 UTCJul 20, 21:15 UTC40m
2026-07-20 N92141 BTP → BTP Jul 20, 18:55 UTCJul 20, 19:55 UTC1h 0m
2026-07-20 N92141 BTP → BTP Jul 20, 17:25 UTCJul 20, 18:10 UTC45m
2026-07-20 N92141 BTP → BTP Jul 20, 16:05 UTCJul 20, 16:55 UTC50m
2026-07-20 N92141 BTP → BTP Jul 20, 13:30 UTCJul 20, 14:45 UTC1h 15m
2026-07-20 N92141 BTP → BTP Jul 20, 02:15 UTCJul 20, 03:35 UTC1h 20m
2026-07-19 N92141 BTP → BTP Jul 19, 23:20 UTCJul 20, 00:25 UTC1h 5m
2026-07-19 N92141 BTP → BTP Jul 19, 22:00 UTCJul 19, 22:40 UTC40m
2026-07-19 N92141 BTP → BTP Jul 19, 20:40 UTCJul 19, 21:20 UTC40m
2026-07-19 N92141 BTP → BTP Jul 19, 19:20 UTCJul 19, 19:55 UTC35m
2026-07-19 N92141 - Jul 19, 17:20 UTCJul 19, 18:10 UTC50m
2026-07-19 N92141 BTP → BTP Jul 19, 14:45 UTCJul 19, 15:20 UTC35m
2026-07-16 N92141 BTP → BTP Jul 16, 15:00 UTCJul 16, 15:05 UTC5m
2026-07-16 N92141 BTP → BTP Jul 16, 14:35 UTCJul 16, 14:45 UTC10m
2026-07-16 N92141 BTP → BTP Jul 16, 13:00 UTCJul 16, 13:15 UTC15m
2026-07-16 N92141 - Jul 16, 03:45 UTCJul 16, 04:40 UTC55m
2026-07-16 N92141 - Jul 16, 02:00 UTCJul 16, 02:50 UTC50m
2026-07-15 N92141 BTP → BTP Jul 15, 20:40 UTCJul 15, 22:30 UTC1h 50m
2026-07-15 N92141 BTP → BTP Jul 15, 17:35 UTCJul 15, 18:35 UTC1h 0m
2026-07-15 N92141 BTP → BTP Jul 15, 13:00 UTCJul 15, 13:55 UTC55m
2026-07-15 N92141 BTP → BTP Jul 15, 02:05 UTCJul 15, 04:30 UTC2h 25m
2026-07-14 N92141 BTP → BTP Jul 14, 23:30 UTCJul 15, 00:20 UTC50m
2026-07-14 N92141 BTP → BTP Jul 14, 20:30 UTCJul 14, 21:20 UTC50m
2026-07-14 N92141 - Jul 14, 19:00 UTCJul 14, 19:45 UTC45m
2026-07-14 N92141 BTP → BTP Jul 14, 17:35 UTCJul 14, 18:15 UTC40m
2026-07-14 N92141 - Jul 14, 16:00 UTCJul 14, 16:55 UTC55m
2026-07-14 N92141 BTP → BTP Jul 14, 14:45 UTCJul 14, 15:20 UTC35m
2026-07-14 N92141 BTP → BTP Jul 14, 12:55 UTCJul 14, 13:50 UTC55m
2026-07-14 N92141 BTP → BTP Jul 14, 02:30 UTCJul 14, 02:35 UTC5m
2026-07-14 N92141 BTP → BTP Jul 14, 01:45 UTCJul 14, 02:25 UTC40m
2026-07-13 N92141 BTP → BTP Jul 13, 23:20 UTCJul 14, 00:30 UTC1h 10m
2026-07-13 N92141 BTP → BTP Jul 13, 20:35 UTCJul 13, 21:30 UTC55m
2026-07-13 N92141 BTP → BTP Jul 13, 18:55 UTCJul 13, 19:55 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 N92141 page for operator, model, and routing details .

Mode-S ACC4DF frequently asked

What is Mode-S code ACC4DF?
ACC4DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N92141.
Where is Mode-S ACC4DF registered?
Mode-S code ACC4DF 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 ACC4DF broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 13:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACC4DF, octal 53142337, decimal 11,322,591.
What flights does ACC4DF operate?
Mode-S ACC4DF has broadcast 1 distinct callsign, including N92141.