Apparatus

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sensors Mode-S transponder

A6EB18

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N545GC · CESSNA 208 Caravan · operated by SEATTLE AIRCRAFT RENTALS LLC

Hex
A6EB18
Octal
51565430
Decimal
10,939,160
Country
US
Tail
N545GC
Type
C208
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
188
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S A6EB18.

Country allocation

The ICAO 24-bit address A6EB18 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
N545GC - 188 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N545GC - Jul 26, 21:40 UTCJul 26, 21:55 UTC15m
2026-07-26 N545GC LPC → LPC Jul 26, 20:00 UTCJul 26, 21:30 UTC1h 30m
2026-07-26 N545GC LPC → LPC Jul 26, 17:55 UTCJul 26, 19:45 UTC1h 50m
2026-07-26 N545GC - Jul 26, 17:15 UTCJul 26, 17:40 UTC25m
2026-07-25 N545GC - Jul 25, 22:25 UTCJul 26, 01:00 UTC2h 35m
2026-07-25 N545GC - Jul 25, 21:35 UTCJul 25, 22:15 UTC40m
2026-07-25 N545GC - Jul 25, 20:45 UTCJul 25, 21:15 UTC30m
2026-07-25 N545GC - Jul 25, 19:10 UTCJul 25, 20:25 UTC1h 15m
2026-07-25 N545GC - Jul 25, 17:35 UTCJul 25, 19:00 UTC1h 25m
2026-07-24 N545GC VBG → LPC Jul 24, 20:30 UTCJul 24, 21:05 UTC35m
2026-07-24 N545GC LPC → LPC Jul 24, 19:45 UTCJul 24, 20:20 UTC35m
2026-07-24 N545GC - Jul 24, 18:30 UTCJul 24, 19:40 UTC1h 10m
2026-07-23 N545GC TLR → LPC Jul 23, 21:45 UTCJul 23, 22:25 UTC40m
2026-07-20 N545GC - Jul 20, 00:30 UTCJul 20, 01:10 UTC40m
2026-07-19 N545GC LPC → LPC Jul 19, 19:40 UTCJul 19, 23:05 UTC3h 25m
2026-07-19 N545GC - Jul 19, 18:45 UTCJul 19, 19:05 UTC20m
2026-07-19 N545GC - Jul 19, 18:05 UTCJul 19, 18:40 UTC35m
2026-07-19 N545GC LPC → LPC Jul 19, 17:25 UTCJul 19, 17:55 UTC30m
2026-07-19 N545GC - Jul 19, 00:45 UTCJul 19, 01:05 UTC20m
2026-07-18 N545GC - Jul 18, 22:45 UTCJul 19, 00:35 UTC1h 50m
2026-07-18 N545GC LPC → LPC Jul 18, 21:55 UTCJul 18, 22:35 UTC40m
2026-07-18 N545GC - Jul 18, 21:15 UTCJul 18, 21:35 UTC20m
2026-07-18 N545GC - Jul 18, 19:50 UTCJul 18, 21:05 UTC1h 15m
2026-07-18 N545GC - Jul 18, 18:15 UTCJul 18, 19:30 UTC1h 15m
2026-07-15 N545GC LPC → LPC Jul 15, 21:40 UTCJul 15, 21:55 UTC15m
2026-07-12 N545GC - Jul 12, 23:20 UTCJul 12, 23:40 UTC20m
2026-07-12 N545GC VBG → LPC Jul 12, 22:45 UTCJul 12, 23:10 UTC25m
2026-07-12 N545GC - Jul 12, 20:25 UTCJul 12, 22:25 UTC2h 0m
2026-07-12 N545GC - Jul 12, 19:40 UTCJul 12, 20:05 UTC25m
2026-07-12 N545GC LPC → LPC Jul 12, 19:01 UTCJul 12, 19:25 UTC25m
2026-07-12 N545GC - Jul 12, 18:20 UTCJul 12, 18:50 UTC30m
2026-07-11 N545GC - Jul 11, 23:25 UTCJul 12, 01:25 UTC2h 0m
2026-07-11 N545GC SMX → LPC Jul 11, 19:55 UTCJul 11, 20:25 UTC30m
2026-07-11 N545GC - Jul 11, 19:15 UTCJul 11, 19:40 UTC25m
2026-07-11 N545GC SMX → SMX Jul 11, 18:25 UTCJul 11, 19:10 UTC45m
2026-07-11 N545GC - Jul 11, 17:40 UTCJul 11, 18:10 UTC30m
2026-07-11 N545GC LPC → SMX Jul 11, 17:20 UTCJul 11, 17:30 UTC10m
2026-07-10 N545GC LPC → LPC Jul 10, 23:00 UTCJul 10, 23:20 UTC20m
2026-07-10 N545GC LPC → LPC Jul 10, 21:50 UTCJul 10, 22:25 UTC35m
2026-07-10 N545GC - Jul 10, 20:45 UTCJul 10, 21:05 UTC20m
2026-07-06 N545GC - Jul 6, 00:00 UTCJul 6, 00:20 UTC20m
2026-07-05 N545GC LPC → LPC Jul 5, 22:20 UTCJul 5, 22:50 UTC30m
2026-07-05 N545GC - Jul 5, 20:50 UTCJul 5, 21:10 UTC20m
2026-07-05 N545GC - Jul 5, 19:15 UTCJul 5, 20:05 UTC50m
2026-07-05 N545GC LPC → LPC Jul 5, 18:30 UTCJul 5, 19:10 UTC40m
2026-07-04 N545GC - Jul 4, 18:15 UTCJul 4, 18:45 UTC30m
2026-07-04 N545GC LPC → LPC Jul 4, 17:15 UTCJul 4, 17:40 UTC25m
2026-07-04 N545GC LPC → LPC Jul 4, 00:05 UTCJul 4, 00:30 UTC25m
2026-07-03 N545GC LPC → LPC Jul 3, 22:50 UTCJul 3, 23:50 UTC1h 0m
2026-07-03 N545GC LPC → LPC Jul 3, 22:05 UTCJul 3, 22:40 UTC35m

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 N545GC page for operator, model, and routing details .

Mode-S A6EB18 frequently asked

What is Mode-S code A6EB18?
A6EB18 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N545GC.
Where is Mode-S A6EB18 registered?
Mode-S code A6EB18 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 A6EB18 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6EB18, octal 51565430, decimal 10,939,160.
What flights does A6EB18 operate?
Mode-S A6EB18 has broadcast 1 distinct callsign, including N545GC.