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sensors Mode-S transponder

A027C8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N109SW · CESSNA T206 Turbo Stationair · operated by CHUGIAK AVIATION LEASING LLC

Hex
A027C8
Octal
50023710
Decimal
10,495,944
Country
US
Tail
N109SW
Type
T206
No current signal · last broadcast 2d ago
Flights observed
56
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A027C8.

Country allocation

The ICAO 24-bit address A027C8 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
N109SW - 56 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 N109SW - Jul 15, 21:10 UTCJul 15, 22:30 UTC1h 20m
2026-07-15 N109SW - Jul 15, 18:00 UTCJul 15, 18:35 UTC35m
2026-07-15 N109SW - Jul 15, 16:55 UTCJul 15, 17:30 UTC35m
2026-07-11 N109SW - Jul 11, 19:55 UTCJul 11, 20:40 UTC45m
2026-07-11 N109SW - Jul 11, 17:25 UTCJul 11, 18:35 UTC1h 10m
2026-07-10 N109SW - Jul 10, 00:55 UTCJul 10, 01:15 UTC20m
2026-07-09 N109SW - Jul 9, 01:45 UTCJul 9, 02:45 UTC1h 0m
2026-07-08 N109SW - Jul 8, 22:25 UTCJul 8, 23:30 UTC1h 5m
2026-07-08 N109SW - Jul 8, 20:30 UTCJul 8, 21:30 UTC1h 0m
2026-07-08 N109SW - Jul 8, 16:20 UTCJul 8, 17:25 UTC1h 5m
2026-07-07 N109SW - Jul 7, 18:10 UTCJul 7, 19:20 UTC1h 10m
2026-07-06 N109SW - Jul 6, 22:35 UTCJul 6, 23:30 UTC55m
2026-07-06 N109SW - Jul 6, 18:35 UTCJul 6, 19:40 UTC1h 5m
2026-07-06 N109SW - Jul 6, 01:40 UTCJul 6, 02:00 UTC20m
2026-07-03 N109SW - Jul 3, 21:25 UTCJul 3, 22:40 UTC1h 15m
2026-07-03 N109SW - Jul 3, 20:30 UTCJul 3, 20:50 UTC20m
2026-07-03 N109SW - Jul 3, 18:35 UTCJul 3, 19:00 UTC25m
2026-07-02 N109SW - Jul 2, 18:05 UTCJul 2, 19:45 UTC1h 40m
2026-06-29 N109SW - Jun 29, 19:15 UTCJun 29, 19:29 UTC15m
2026-06-29 N109SW - Jun 29, 17:55 UTCJun 29, 18:14 UTC20m
2026-06-28 N109SW - Jun 28, 21:04 UTCJun 28, 21:59 UTC55m
2026-06-28 N109SW - Jun 28, 17:10 UTCJun 28, 18:19 UTC1h 10m
2026-06-28 N109SW - Jun 28, 01:59 UTCJun 28, 02:25 UTC25m
2026-06-28 N109SW - Jun 28, 00:39 UTCJun 28, 01:10 UTC30m
2026-06-25 N109SW - Jun 25, 02:05 UTCJun 25, 02:30 UTC25m
2026-06-25 N109SW - Jun 25, 01:14 UTCJun 25, 01:35 UTC20m
2026-06-25 N109SW - Jun 25, 00:19 UTCJun 25, 00:40 UTC20m
2026-06-24 N109SW - Jun 24, 23:04 UTCJun 24, 23:45 UTC40m
2026-06-22 N109SW - Jun 22, 23:05 UTCJun 23, 00:04 UTC1h 0m
2026-06-22 N109SW - Jun 22, 21:10 UTCJun 22, 21:40 UTC30m
2026-06-22 N109SW - Jun 22, 19:00 UTCJun 22, 20:24 UTC1h 25m
2026-06-22 N109SW - Jun 22, 17:20 UTCJun 22, 17:55 UTC35m
2026-06-22 N109SW - Jun 22, 16:05 UTCJun 22, 16:45 UTC40m
2026-06-17 N109SW - Jun 17, 23:10 UTCJun 18, 00:30 UTC1h 20m
2026-06-17 N109SW - Jun 17, 21:50 UTCJun 17, 22:35 UTC45m
2026-06-17 N109SW - Jun 17, 19:55 UTCJun 17, 20:55 UTC1h 0m
2026-06-17 N109SW - Jun 17, 17:50 UTCJun 17, 18:35 UTC45m
2026-06-17 N109SW - Jun 17, 04:50 UTCJun 17, 05:05 UTC15m
2026-06-17 N109SW - Jun 17, 03:30 UTCJun 17, 03:45 UTC15m
2026-06-17 N109SW - Jun 17, 02:00 UTCJun 17, 02:45 UTC45m
2026-06-16 N109SW - Jun 16, 19:45 UTCJun 16, 20:50 UTC1h 6m
2026-06-16 N109SW - Jun 16, 16:15 UTCJun 16, 17:35 UTC1h 20m
2026-06-13 N109SW - Jun 13, 04:55 UTCJun 13, 06:05 UTC1h 10m
2026-06-13 N109SW - Jun 13, 01:15 UTCJun 13, 02:20 UTC1h 5m
2026-06-10 N109SW - Jun 10, 19:30 UTCJun 10, 20:00 UTC30m
2026-06-10 N109SW - Jun 10, 18:15 UTCJun 10, 18:55 UTC40m
2026-06-09 N109SW - Jun 9, 21:40 UTCJun 9, 22:30 UTC50m
2026-06-09 N109SW - Jun 9, 17:45 UTCJun 9, 18:05 UTC20m
2026-06-09 N109SW - Jun 9, 01:05 UTCJun 9, 01:25 UTC20m
2026-06-09 N109SW - Jun 9, 00:10 UTCJun 9, 00:20 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 N109SW page for operator, model, and routing details .

Mode-S A027C8 frequently asked

What is Mode-S code A027C8?
A027C8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N109SW.
Where is Mode-S A027C8 registered?
Mode-S code A027C8 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 A027C8 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A027C8, octal 50023710, decimal 10,495,944.
What flights does A027C8 operate?
Mode-S A027C8 has broadcast 1 distinct callsign, including N109SW.