Apparatus

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sensors Mode-S transponder

A6A4CC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N527VB · ROBINSON R-44 Raven · operated by EXECUTIVE HELICOPTERS INC

Hex
A6A4CC
Octal
51522314
Decimal
10,921,164
Country
US
Tail
N527VB
Type
R44
No current signal · last broadcast 5d ago
Flights observed
120
Distinct callsigns
1
Country
US
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S A6A4CC.

Country allocation

The ICAO 24-bit address A6A4CC 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
N527VB - 120 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 N527VB - Jul 16, 13:54 UTCJul 16, 14:35 UTC40m
2026-07-15 N527VB - Jul 15, 16:20 UTCJul 15, 17:05 UTC45m
2026-07-15 N527VB - Jul 15, 12:00 UTCJul 15, 12:20 UTC20m
2026-07-12 N527VB - Jul 12, 11:35 UTCJul 12, 12:15 UTC40m
2026-07-12 N527VB - Jul 12, 00:40 UTCJul 12, 02:10 UTC1h 30m
2026-07-11 N527VB ENW → GSH Jul 11, 16:05 UTCJul 11, 17:30 UTC1h 25m
2026-07-11 N527VB - Jul 11, 13:45 UTCJul 11, 14:15 UTC30m
2026-07-09 N527VB - Jul 9, 20:30 UTCJul 9, 20:50 UTC20m
2026-07-09 N527VB - Jul 9, 16:10 UTCJul 9, 16:25 UTC15m
2026-07-08 N527VB - Jul 8, 20:25 UTCJul 8, 21:00 UTC35m
2026-07-08 N527VB ENW → ENW Jul 8, 18:50 UTCJul 8, 19:00 UTC10m
2026-07-08 N527VB ENW → ENW Jul 8, 15:55 UTCJul 8, 16:15 UTC20m
2026-07-08 N527VB - Jul 8, 14:25 UTCJul 8, 14:55 UTC30m
2026-07-07 N527VB - Jul 7, 21:25 UTCJul 7, 22:00 UTC35m
2026-07-07 N527VB ENW → ENW Jul 7, 15:10 UTCJul 7, 15:35 UTC25m
2026-07-07 N527VB - Jul 7, 13:10 UTCJul 7, 13:45 UTC35m
2026-07-06 N527VB - Jul 6, 17:45 UTCJul 6, 17:55 UTC10m
2026-07-06 N527VB - Jul 6, 12:20 UTCJul 6, 12:35 UTC15m
2026-07-04 N527VB - Jul 4, 19:10 UTCJul 4, 19:20 UTC10m
2026-07-04 N527VB - Jul 4, 18:30 UTCJul 4, 18:40 UTC10m
2026-07-03 N527VB - Jul 3, 19:15 UTCJul 3, 19:25 UTC10m
2026-07-03 N527VB - Jul 3, 17:55 UTCJul 3, 18:15 UTC20m
2026-07-02 N527VB - Jul 2, 20:25 UTCJul 2, 21:00 UTC35m
2026-07-02 N527VB - Jul 2, 17:20 UTCJul 2, 18:20 UTC1h 0m
2026-07-02 N527VB ENW → ENW Jul 2, 13:10 UTCJul 2, 13:20 UTC10m
2026-07-01 N527VB - Jul 1, 23:50 UTCJul 2, 00:20 UTC30m
2026-06-30 N527VB - Jun 30, 17:25 UTCJun 30, 17:45 UTC20m
2026-06-30 N527VB - Jun 30, 10:15 UTCJun 30, 10:35 UTC20m
2026-06-29 N527VB - Jun 29, 18:30 UTCJun 29, 19:00 UTC30m
2026-06-29 N527VB - Jun 29, 14:09 UTCJun 29, 14:29 UTC20m
2026-06-27 N527VB - Jun 27, 04:24 UTCJun 27, 05:04 UTC40m
2026-06-27 N527VB - Jun 27, 02:25 UTCJun 27, 03:34 UTC1h 10m
2026-06-27 N527VB - Jun 27, 00:14 UTCJun 27, 00:50 UTC35m
2026-06-26 N527VB - Jun 26, 20:29 UTCJun 26, 21:15 UTC45m
2026-06-25 N527VB - Jun 25, 20:25 UTCJun 25, 20:59 UTC35m
2026-06-25 N527VB - Jun 25, 18:39 UTCJun 25, 19:44 UTC1h 5m
2026-06-25 N527VB ENW → ENW Jun 25, 15:54 UTCJun 25, 16:29 UTC35m
2026-06-25 N527VB - Jun 25, 14:24 UTCJun 25, 14:59 UTC35m
2026-06-24 N527VB - Jun 24, 16:34 UTCJun 24, 16:59 UTC25m
2026-06-24 N527VB - Jun 24, 15:35 UTCJun 24, 15:49 UTC15m
2026-06-23 N527VB - Jun 23, 22:29 UTCJun 23, 23:05 UTC35m
2026-06-23 N527VB ENW → ENW Jun 23, 16:24 UTCJun 23, 17:34 UTC1h 10m
2026-06-23 N527VB ENW → ENW Jun 23, 14:25 UTCJun 23, 14:49 UTC25m
2026-06-23 N527VB - Jun 23, 13:09 UTCJun 23, 13:39 UTC30m
2026-06-19 N527VB - Jun 19, 17:44 UTCJun 19, 17:55 UTC10m
2026-06-19 N527VB - Jun 19, 16:39 UTCJun 19, 16:55 UTC15m
2026-06-19 N527VB - Jun 19, 11:54 UTCJun 19, 14:09 UTC2h 15m
2026-06-18 N527VB - Jun 18, 21:00 UTCJun 18, 21:10 UTC10m
2026-06-18 N527VB - Jun 18, 18:20 UTCJun 18, 18:55 UTC35m
2026-06-18 N527VB - Jun 18, 15:30 UTCJun 18, 16:35 UTC1h 5m

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 N527VB page for operator, model, and routing details .

Mode-S A6A4CC frequently asked

What is Mode-S code A6A4CC?
A6A4CC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N527VB.
Where is Mode-S A6A4CC registered?
Mode-S code A6A4CC 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 A6A4CC broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6A4CC, octal 51522314, decimal 10,921,164.
What flights does A6A4CC operate?
Mode-S A6A4CC has broadcast 1 distinct callsign, including N527VB.