Apparatus

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sensors Mode-S transponder

A6FC4D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N5494P · CESSNA 152 · operated by HILLSBORO AERO ACADEMY LLC

Hex
A6FC4D
Octal
51576115
Decimal
10,943,565
Country
US
Tail
N5494P
Type
C152
No current signal · last broadcast 6h ago
Flights observed
231
Distinct callsigns
1
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S A6FC4D.

Country allocation

The ICAO 24-bit address A6FC4D 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
N5494P - 231 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N5494P - Jul 25, 02:00 UTCJul 25, 03:30 UTC1h 30m
2026-07-24 N5494P - Jul 24, 23:50 UTCJul 25, 01:20 UTC1h 30m
2026-07-24 N5494P - Jul 24, 20:55 UTCJul 24, 22:00 UTC1h 5m
2026-07-24 N5494P HIO → HIO Jul 24, 17:40 UTCJul 24, 19:10 UTC1h 30m
2026-07-24 N5494P - Jul 24, 00:05 UTCJul 24, 00:35 UTC30m
2026-07-23 N5494P - Jul 23, 19:25 UTCJul 23, 23:00 UTC3h 35m
2026-07-22 N5494P - Jul 22, 16:50 UTCJul 22, 18:15 UTC1h 25m
2026-07-22 N5494P HIO → HIO Jul 22, 00:40 UTCJul 22, 01:30 UTC50m
2026-07-22 N5494P HIO → HIO Jul 22, 00:10 UTCJul 22, 00:35 UTC25m
2026-07-21 N5494P - Jul 21, 21:25 UTCJul 21, 23:00 UTC1h 35m
2026-07-21 N5494P - Jul 21, 18:50 UTCJul 21, 19:40 UTC50m
2026-07-21 N5494P HIO → HIO Jul 21, 15:35 UTCJul 21, 16:50 UTC1h 15m
2026-07-21 N5494P - Jul 21, 01:00 UTCJul 21, 02:25 UTC1h 25m
2026-07-20 N5494P - Jul 20, 18:15 UTCJul 20, 19:30 UTC1h 15m
2026-07-20 N5494P - Jul 20, 05:45 UTCJul 20, 05:55 UTC10m
2026-07-20 N5494P HIO → HIO Jul 20, 04:50 UTCJul 20, 05:40 UTC50m
2026-07-20 N5494P - Jul 20, 01:10 UTCJul 20, 02:35 UTC1h 25m
2026-07-19 N5494P HIO → HIO Jul 19, 17:50 UTCJul 19, 19:15 UTC1h 25m
2026-07-19 N5494P - Jul 19, 14:35 UTCJul 19, 16:30 UTC1h 55m
2026-07-18 N5494P HIO → HIO Jul 18, 23:50 UTCJul 19, 02:10 UTC2h 20m
2026-07-18 N5494P - Jul 18, 20:55 UTCJul 18, 22:55 UTC2h 0m
2026-07-18 N5494P - Jul 18, 18:45 UTCJul 18, 20:05 UTC1h 20m
2026-07-18 N5494P - Jul 18, 15:55 UTCJul 18, 17:10 UTC1h 15m
2026-07-18 N5494P - Jul 18, 03:30 UTCJul 18, 04:35 UTC1h 5m
2026-07-18 N5494P - Jul 18, 00:50 UTCJul 18, 01:45 UTC55m
2026-07-17 N5494P - Jul 17, 22:20 UTCJul 17, 23:45 UTC1h 25m
2026-07-17 N5494P - Jul 17, 19:30 UTCJul 17, 20:35 UTC1h 5m
2026-07-15 N5494P - Jul 15, 21:40 UTCJul 15, 23:25 UTC1h 45m
2026-07-15 N5494P - Jul 15, 17:05 UTCJul 15, 18:20 UTC1h 15m
2026-07-15 N5494P - Jul 15, 14:45 UTCJul 15, 15:50 UTC1h 5m
2026-07-15 N5494P - Jul 15, 05:55 UTCJul 15, 07:45 UTC1h 50m
2026-07-15 N5494P - Jul 15, 02:45 UTCJul 15, 04:35 UTC1h 50m
2026-07-14 N5494P - Jul 14, 22:10 UTCJul 14, 23:50 UTC1h 39m
2026-07-13 N5494P - Jul 13, 23:45 UTCJul 14, 00:05 UTC20m
2026-07-13 N5494P - Jul 13, 18:45 UTCJul 13, 20:35 UTC1h 50m
2026-07-13 N5494P - Jul 13, 16:05 UTCJul 13, 17:30 UTC1h 25m
2026-07-12 N5494P - Jul 12, 23:40 UTCJul 13, 01:05 UTC1h 25m
2026-07-12 N5494P - Jul 12, 20:55 UTCJul 12, 22:25 UTC1h 30m
2026-07-12 N5494P HIO → HIO Jul 12, 17:20 UTCJul 12, 19:35 UTC2h 15m
2026-07-10 N5494P - Jul 10, 23:50 UTCJul 11, 01:30 UTC1h 40m
2026-07-10 N5494P - Jul 10, 20:25 UTCJul 10, 21:20 UTC55m
2026-07-10 N5494P - Jul 10, 18:45 UTCJul 10, 19:35 UTC50m
2026-07-10 N5494P - Jul 10, 16:10 UTCJul 10, 17:45 UTC1h 35m
2026-07-10 N5494P - Jul 10, 02:00 UTCJul 10, 03:30 UTC1h 30m
2026-07-09 N5494P - Jul 9, 23:45 UTCJul 10, 00:45 UTC1h 0m
2026-07-09 N5494P HIO → ONP Jul 9, 22:00 UTCJul 9, 22:55 UTC55m
2026-07-09 N5494P - Jul 9, 17:50 UTCJul 9, 19:55 UTC2h 5m
2026-07-09 N5494P - Jul 9, 14:30 UTCJul 9, 15:50 UTC1h 20m
2026-07-09 N5494P - Jul 9, 01:55 UTCJul 9, 04:50 UTC2h 55m
2026-07-08 N5494P - Jul 8, 18:35 UTCJul 8, 19:35 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 N5494P page for operator, model, and routing details .

Mode-S A6FC4D frequently asked

What is Mode-S code A6FC4D?
A6FC4D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N5494P.
Where is Mode-S A6FC4D registered?
Mode-S code A6FC4D 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 A6FC4D broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6FC4D, octal 51576115, decimal 10,943,565.
What flights does A6FC4D operate?
Mode-S A6FC4D has broadcast 1 distinct callsign, including N5494P.