Apparatus

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sensors Mode-S transponder

AC6C6C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9VY · SIKORSKY S-58T · operated by 5-STATE HELICOPTERS INC

Hex
AC6C6C
Octal
53066154
Decimal
11,299,948
Country
US
Tail
N9VY
Type
S58T
No current signal · last broadcast Jul 26, 18:15 UTC
Flights observed
57
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 18:15 UTC

Last known position

Most recent position reported by Mode-S AC6C6C.

Country allocation

The ICAO 24-bit address AC6C6C 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
N9VY - 57 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N9VY - Jul 26, 16:55 UTCJul 26, 18:15 UTC1h 20m
2026-07-26 N9VY - Jul 26, 16:00 UTCJul 26, 16:20 UTC20m
2026-07-26 N9VY - Jul 26, 13:45 UTCJul 26, 14:35 UTC50m
2026-07-22 N9VY - Jul 22, 16:40 UTCJul 22, 17:10 UTC30m
2026-07-21 N9VY - Jul 21, 17:35 UTCJul 21, 18:10 UTC35m
2026-07-18 N9VY - Jul 18, 17:50 UTCJul 18, 18:00 UTC10m
2026-07-18 N9VY - Jul 18, 12:50 UTCJul 18, 13:00 UTC10m
2026-07-15 N9VY - Jul 15, 13:20 UTCJul 15, 13:40 UTC20m
2026-07-15 N9VY - Jul 15, 12:05 UTCJul 15, 12:25 UTC20m
2026-07-09 N9VY - Jul 9, 15:00 UTCJul 9, 15:25 UTC25m
2026-07-09 N9VY - Jul 9, 12:30 UTCJul 9, 13:00 UTC30m
2026-07-02 N9VY - Jul 2, 17:50 UTCJul 2, 18:05 UTC15m
2026-07-02 N9VY - Jul 2, 16:05 UTCJul 2, 17:00 UTC55m
2026-07-02 N9VY - Jul 2, 14:20 UTCJul 2, 15:30 UTC1h 10m
2026-07-02 N9VY - Jul 2, 12:55 UTCJul 2, 13:05 UTC10m
2026-07-01 N9VY - Jul 1, 17:15 UTCJul 1, 17:30 UTC15m
2026-07-01 N9VY - Jul 1, 12:35 UTCJul 1, 12:45 UTC10m
2026-06-30 N9VY - Jun 30, 18:05 UTCJun 30, 18:15 UTC10m
2026-06-30 N9VY - Jun 30, 15:15 UTCJun 30, 16:15 UTC1h 0m
2026-06-30 N9VY - Jun 30, 12:35 UTCJun 30, 12:55 UTC20m
2026-06-25 N9VY - Jun 25, 16:24 UTCJun 25, 16:50 UTC25m
2026-06-25 N9VY - Jun 25, 14:09 UTCJun 25, 15:04 UTC55m
2026-06-25 N9VY - Jun 25, 12:30 UTCJun 25, 13:05 UTC35m
2026-06-23 N9VY - Jun 23, 16:24 UTCJun 23, 16:44 UTC20m
2026-06-23 N9VY - Jun 23, 12:35 UTCJun 23, 13:00 UTC25m
2026-06-18 N9VY - Jun 18, 15:00 UTCJun 18, 16:10 UTC1h 10m
2026-06-18 N9VY - Jun 18, 13:35 UTCJun 18, 14:05 UTC30m
2026-06-16 N9VY - Jun 16, 14:50 UTCJun 16, 18:09 UTC3h 20m
2026-06-16 N9VY - Jun 16, 13:55 UTCJun 16, 14:15 UTC20m
2026-06-15 N9VY - Jun 15, 15:10 UTCJun 15, 15:30 UTC20m
2026-06-15 N9VY - Jun 15, 12:45 UTCJun 15, 13:05 UTC20m
2026-06-14 N9VY - Jun 14, 14:35 UTCJun 14, 14:55 UTC20m
2026-06-12 N9VY - Jun 12, 16:05 UTCJun 12, 16:35 UTC30m
2026-06-12 N9VY - Jun 12, 13:45 UTCJun 12, 15:30 UTC1h 45m
2026-06-12 N9VY - Jun 12, 12:35 UTCJun 12, 13:00 UTC25m
2026-06-09 N9VY - Jun 9, 13:55 UTCJun 9, 14:35 UTC40m
2026-06-09 N9VY - Jun 9, 12:45 UTCJun 9, 13:10 UTC25m
2026-06-02 N9VY - Jun 2, 15:25 UTCJun 2, 17:55 UTC2h 30m
2026-06-02 N9VY - Jun 2, 13:50 UTCJun 2, 14:40 UTC50m
2026-06-02 N9VY - Jun 2, 12:45 UTCJun 2, 13:10 UTC25m
2026-05-30 N9VY - May 30, 15:20 UTCMay 30, 15:35 UTC15m
2026-05-30 N9VY - May 30, 12:35 UTCMay 30, 13:00 UTC25m
2026-05-26 N9VY - May 26, 14:45 UTCMay 26, 16:05 UTC1h 20m
2026-05-26 N9VY - May 26, 12:24 UTCMay 26, 12:54 UTC30m
2026-05-20 N9VY - May 20, 22:25 UTCMay 20, 22:45 UTC20m
2026-05-20 N9VY - May 20, 19:30 UTCMay 20, 19:50 UTC20m
2026-05-07 N9VY - May 7, 19:00 UTCMay 7, 19:35 UTC35m
2026-05-07 N9VY - May 7, 18:00 UTCMay 7, 18:15 UTC15m
2026-05-07 N9VY - May 7, 16:55 UTCMay 7, 17:15 UTC20m
2026-05-07 N9VY - May 7, 15:45 UTCMay 7, 15:55 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 N9VY page for operator, model, and routing details .

Mode-S AC6C6C frequently asked

What is Mode-S code AC6C6C?
AC6C6C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9VY.
Where is Mode-S AC6C6C registered?
Mode-S code AC6C6C 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 AC6C6C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC6C6C, octal 53066154, decimal 11,299,948.
What flights does AC6C6C operate?
Mode-S AC6C6C has broadcast 1 distinct callsign, including N9VY.