Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A685FC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N5195Y · CESSNA 172 Skyhawk · operated by URBANA AIRCRAFT LLC

Hex
A685FC
Octal
51502774
Decimal
10,913,276
Country
US
Tail
N5195Y
Type
C172
No current signal · last broadcast 1h ago
Flights observed
94
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A685FC.

Country allocation

The ICAO 24-bit address A685FC 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
N5195Y - 94 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N5195Y - Jul 14, 23:40 UTCJul 14, 23:55 UTC15m
2026-07-14 N5195Y - Jul 14, 22:55 UTCJul 14, 23:05 UTC10m
2026-07-14 N5195Y - Jul 14, 21:35 UTCJul 14, 21:50 UTC15m
2026-07-14 N5195Y - Jul 14, 20:30 UTCJul 14, 20:45 UTC15m
2026-07-14 N5195Y - Jul 14, 19:00 UTCJul 14, 19:25 UTC25m
2026-07-14 N5195Y - Jul 14, 17:00 UTCJul 14, 17:55 UTC55m
2026-07-14 N5195Y - Jul 14, 15:00 UTCJul 14, 15:40 UTC40m
2026-07-14 N5195Y - Jul 14, 12:50 UTCJul 14, 13:50 UTC1h 0m
2026-07-13 N5195Y - Jul 13, 19:15 UTCJul 13, 20:30 UTC1h 15m
2026-07-13 N5195Y - Jul 13, 17:00 UTCJul 13, 18:30 UTC1h 30m
2026-07-13 N5195Y - Jul 13, 14:55 UTCJul 13, 15:45 UTC50m
2026-07-13 N5195Y - Jul 13, 12:45 UTCJul 13, 13:35 UTC50m
2026-07-13 N5195Y FDK → FDK Jul 13, 01:45 UTCJul 13, 02:30 UTC45m
2026-07-12 N5195Y - Jul 12, 22:35 UTCJul 12, 22:50 UTC15m
2026-07-12 N5195Y - Jul 12, 15:05 UTCJul 12, 15:55 UTC50m
2026-07-10 N5195Y - Jul 10, 22:15 UTCJul 10, 22:45 UTC30m
2026-07-10 N5195Y - Jul 10, 16:55 UTCJul 10, 17:40 UTC45m
2026-07-10 N5195Y - Jul 10, 13:30 UTCJul 10, 15:35 UTC2h 5m
2026-07-08 N5195Y - Jul 8, 23:05 UTCJul 9, 00:35 UTC1h 30m
2026-07-08 N5195Y - Jul 8, 20:30 UTCJul 8, 21:40 UTC1h 10m
2026-07-01 N5195Y - Jul 1, 14:20 UTCJul 1, 15:40 UTC1h 20m
2026-06-30 N5195Y - Jun 30, 22:55 UTCJul 1, 00:35 UTC1h 40m
2026-06-30 N5195Y - Jun 30, 19:10 UTCJun 30, 21:30 UTC2h 20m
2026-06-30 N5195Y - Jun 30, 16:50 UTCJun 30, 17:55 UTC1h 5m
2026-06-30 N5195Y - Jun 30, 10:45 UTCJun 30, 11:20 UTC35m
2026-06-29 N5195Y - Jun 29, 22:44 UTCJun 29, 23:34 UTC50m
2026-06-29 N5195Y - Jun 29, 20:24 UTCJun 29, 21:34 UTC1h 10m
2026-06-29 N5195Y - Jun 29, 15:45 UTCJun 29, 16:50 UTC1h 5m
2026-06-28 N5195Y FDK → FDK Jun 28, 22:34 UTCJun 28, 23:25 UTC50m
2026-06-26 N5195Y - Jun 26, 23:04 UTCJun 26, 23:19 UTC15m
2026-06-26 N5195Y - Jun 26, 20:55 UTCJun 26, 21:39 UTC45m
2026-06-26 N5195Y - Jun 26, 18:15 UTCJun 26, 19:20 UTC1h 5m
2026-06-26 N5195Y - Jun 26, 15:49 UTCJun 26, 17:00 UTC1h 10m
2026-06-26 N5195Y FDK → FDK Jun 26, 13:49 UTCJun 26, 14:55 UTC1h 5m
2026-06-25 N5195Y - Jun 25, 23:09 UTCJun 26, 01:24 UTC2h 15m
2026-06-25 N5195Y - Jun 25, 21:10 UTCJun 25, 21:40 UTC30m
2026-06-25 N5195Y - Jun 25, 19:15 UTCJun 25, 20:09 UTC55m
2026-06-25 N5195Y - Jun 25, 17:09 UTCJun 25, 17:54 UTC45m
2026-06-25 N5195Y - Jun 25, 14:55 UTCJun 25, 15:44 UTC50m
2026-06-25 N5195Y - Jun 25, 12:54 UTCJun 25, 13:45 UTC50m
2026-06-24 N5195Y - Jun 24, 22:49 UTCJun 24, 23:50 UTC1h 0m
2026-06-24 N5195Y - Jun 24, 20:30 UTCJun 24, 21:44 UTC1h 15m
2026-06-24 N5195Y - Jun 24, 19:00 UTCJun 24, 19:49 UTC50m
2026-06-24 N5195Y - Jun 24, 16:54 UTCJun 24, 17:50 UTC55m
2026-06-24 N5195Y - Jun 24, 14:55 UTCJun 24, 15:44 UTC50m
2026-06-24 N5195Y - Jun 24, 12:54 UTCJun 24, 13:34 UTC40m
2026-06-23 N5195Y - Jun 23, 20:10 UTCJun 23, 21:24 UTC1h 15m
2026-06-22 N5195Y - Jun 22, 18:30 UTCJun 22, 19:14 UTC45m
2026-06-22 N5195Y - Jun 22, 16:05 UTCJun 22, 16:34 UTC30m
2026-06-22 N5195Y - Jun 22, 15:05 UTCJun 22, 15:14 UTC10m

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 N5195Y page for operator, model, and routing details .

Mode-S A685FC frequently asked

What is Mode-S code A685FC?
A685FC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N5195Y.
Where is Mode-S A685FC registered?
Mode-S code A685FC 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 A685FC broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A685FC, octal 51502774, decimal 10,913,276.
What flights does A685FC operate?
Mode-S A685FC has broadcast 1 distinct callsign, including N5195Y.