sensors Mode-S transponder

A0279D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N109RC · CESSNA T206 Turbo Stationair · operated by LENTFER CLINTON H A

Hex
A0279D
Octal
50023635
Decimal
10,495,901
Country
US
Tail
N109RC
Type
T206
No current signal · last broadcast 3d ago
Flights observed
35
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A0279D.

Country allocation

The ICAO 24-bit address A0279D 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
N109RC - 35 2026-07-13

Recent flights last 35

DateFlightRouteTakeoffLandingDuration
2026-07-13 N109RC - Jul 13, 00:40 UTCJul 13, 00:55 UTC15m
2026-07-12 N109RC - Jul 12, 02:20 UTCJul 12, 02:40 UTC20m
2026-07-12 N109RC - Jul 12, 01:00 UTCJul 12, 01:40 UTC40m
2026-07-07 N109RC - Jul 7, 02:50 UTCJul 7, 03:20 UTC30m
2026-07-06 N109RC - Jul 6, 23:35 UTCJul 7, 00:25 UTC50m
2026-07-04 N109RC - Jul 4, 23:05 UTCJul 4, 23:35 UTC30m
2026-07-03 N109RC - Jul 3, 02:10 UTCJul 3, 02:35 UTC25m
2026-06-29 N109RC - Jun 29, 15:00 UTCJun 29, 15:09 UTC10m
2026-06-27 N109RC - Jun 27, 01:35 UTCJun 27, 01:49 UTC15m
2026-06-26 N109RC - Jun 26, 22:19 UTCJun 26, 22:34 UTC15m
2026-06-26 N109RC - Jun 26, 19:35 UTCJun 26, 20:04 UTC30m
2026-06-25 N109RC - Jun 25, 03:40 UTCJun 25, 03:59 UTC20m
2026-06-21 N109RC - Jun 21, 22:24 UTCJun 21, 22:54 UTC30m
2026-06-18 N109RC - Jun 18, 23:35 UTCJun 19, 00:14 UTC39m
2026-06-17 N109RC - Jun 17, 04:55 UTCJun 17, 05:05 UTC10m
2026-06-17 N109RC - Jun 17, 02:30 UTCJun 17, 02:45 UTC15m
2026-06-12 N109RC - Jun 12, 23:40 UTCJun 13, 00:30 UTC50m
2026-06-12 N109RC - Jun 12, 22:10 UTCJun 12, 22:40 UTC30m
2026-06-12 N109RC - Jun 12, 03:20 UTCJun 12, 03:40 UTC20m
2026-06-10 N109RC - Jun 10, 22:30 UTCJun 11, 00:35 UTC2h 5m
2026-06-10 N109RC - Jun 10, 20:10 UTCJun 10, 20:40 UTC30m
2026-06-10 N109RC - Jun 10, 18:30 UTCJun 10, 19:25 UTC55m
2026-06-09 N109RC - Jun 9, 14:10 UTCJun 9, 14:55 UTC45m
2026-06-09 N109RC - Jun 9, 03:30 UTCJun 9, 04:05 UTC35m
2026-06-08 N109RC - Jun 8, 00:20 UTCJun 8, 01:05 UTC45m
2026-06-05 N109RC - Jun 5, 00:15 UTCJun 5, 01:30 UTC1h 15m
2026-06-04 N109RC - Jun 4, 16:25 UTCJun 4, 18:30 UTC2h 5m
2026-06-03 N109RC - Jun 3, 05:40 UTCJun 3, 05:50 UTC10m
2026-06-03 N109RC - Jun 3, 02:40 UTCJun 3, 03:25 UTC45m
2026-06-03 N109RC - Jun 3, 01:45 UTCJun 3, 02:05 UTC20m
2026-06-01 N109RC - Jun 1, 14:40 UTCJun 1, 14:55 UTC15m
2026-05-31 N109RC - May 31, 22:50 UTCMay 31, 23:25 UTC35m
2026-05-31 N109RC - May 31, 19:00 UTCMay 31, 19:30 UTC30m
2026-05-30 N109RC - May 30, 00:55 UTCMay 30, 01:10 UTC15m
2026-05-23 N109RC - May 23, 03:50 UTCMay 23, 04:10 UTC20m

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 N109RC page for operator, model, and routing details .

Mode-S A0279D frequently asked

What is Mode-S code A0279D?
A0279D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N109RC.
Where is Mode-S A0279D registered?
Mode-S code A0279D 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 A0279D broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0279D, octal 50023635, decimal 10,495,901.
What flights does A0279D operate?
Mode-S A0279D has broadcast 1 distinct callsign, including N109RC.