Apparatus

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sensors Mode-S transponder

A4ADCA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N400MX · BEECH 400 Beechjet · operated by RJB MANAGEMENT COMPANY INC

Hex
A4ADCA
Octal
51126712
Decimal
10,792,394
Country
US
Tail
N400MX
Type
BE40
No current signal · last broadcast 12h ago
Flights observed
146
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A4ADCA.

Country allocation

The ICAO 24-bit address A4ADCA 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
RVJ400 - 146 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 RVJ400 - Jul 25, 17:50 UTCJul 25, 19:50 UTC2h 0m
2026-07-25 RVJ400 - Jul 25, 15:55 UTCJul 25, 16:25 UTC30m
2026-07-25 RVJ400 - Jul 25, 13:20 UTCJul 25, 15:15 UTC1h 55m
2026-07-25 RVJ400 - Jul 25, 11:15 UTCJul 25, 11:30 UTC15m
2026-07-24 RVJ400 - Jul 24, 16:55 UTCJul 24, 17:50 UTC55m
2026-07-24 RVJ400 - Jul 24, 14:00 UTCJul 24, 15:00 UTC1h 0m
2026-07-23 RVJ400 - Jul 23, 15:55 UTCJul 23, 17:30 UTC1h 35m
2026-07-23 RVJ400 - Jul 23, 12:55 UTCJul 23, 13:50 UTC55m
2026-07-22 RVJ400 - Jul 22, 16:00 UTCJul 22, 18:05 UTC2h 5m
2026-07-22 RVJ400 - Jul 22, 14:05 UTCJul 22, 14:30 UTC25m
2026-07-21 RVJ400 - Jul 21, 22:20 UTCJul 22, 00:55 UTC2h 35m
2026-07-21 RVJ400 - Jul 21, 18:20 UTCJul 21, 20:45 UTC2h 25m
2026-07-21 RVJ400 - Jul 21, 15:00 UTCJul 21, 17:00 UTC2h 0m
2026-07-19 RVJ400 - Jul 19, 16:10 UTCJul 19, 17:30 UTC1h 20m
2026-07-17 RVJ400 - Jul 17, 17:20 UTCJul 17, 18:34 UTC1h 15m
2026-07-17 RVJ400 - Jul 17, 14:10 UTCJul 17, 15:00 UTC50m
2026-07-17 RVJ400 - Jul 17, 12:25 UTCJul 17, 13:05 UTC40m
2026-07-16 RVJ400 PIT → TEB Jul 16, 03:50 UTCJul 16, 04:40 UTC50m
2026-07-15 RVJ400 - Jul 15, 20:30 UTCJul 15, 20:55 UTC25m
2026-07-15 RVJ400 - Jul 15, 18:40 UTCJul 15, 19:40 UTC1h 0m
2026-07-15 RVJ400 - Jul 15, 15:15 UTCJul 15, 15:45 UTC30m
2026-07-13 RVJ400 - Jul 13, 14:10 UTCJul 13, 16:25 UTC2h 15m
2026-07-12 RVJ400 - Jul 12, 22:55 UTCJul 13, 00:40 UTC1h 45m
2026-07-12 RVJ400 - Jul 12, 21:00 UTCJul 12, 21:35 UTC35m
2026-07-12 RVJ400 - Jul 12, 15:45 UTCJul 12, 16:55 UTC1h 10m
2026-07-12 RVJ400 - Jul 12, 13:25 UTCJul 12, 14:35 UTC1h 10m
2026-07-11 RVJ400 - Jul 11, 20:05 UTCJul 11, 21:05 UTC1h 0m
2026-07-11 RVJ400 IAD → ECP Jul 11, 15:25 UTCJul 11, 17:20 UTC1h 55m
2026-07-11 RVJ400 PIT → IAD Jul 11, 12:35 UTCJul 11, 13:20 UTC45m
2026-07-10 RVJ400 - Jul 10, 22:45 UTCJul 10, 23:45 UTC1h 0m
2026-07-10 RVJ400 MSP → TEB Jul 10, 18:50 UTCJul 10, 21:05 UTC2h 15m
2026-07-10 RVJ400 - Jul 10, 16:30 UTCJul 10, 17:05 UTC35m
2026-07-10 RVJ400 - Jul 10, 14:05 UTCJul 10, 15:10 UTC1h 5m
2026-07-10 RVJ400 - Jul 10, 12:15 UTCJul 10, 12:40 UTC25m
2026-07-05 RVJ400 - Jul 5, 22:15 UTCJul 5, 23:10 UTC55m
2026-07-02 RVJ400 - Jul 2, 21:15 UTCJul 2, 22:10 UTC55m
2026-07-01 RVJ400 - Jul 1, 21:40 UTCJul 1, 22:35 UTC55m
2026-07-01 RVJ400 PIT → MMU Jul 1, 19:50 UTCJul 1, 20:50 UTC1h 0m
2026-06-30 RVJ400 - Jun 30, 19:20 UTCJun 30, 21:25 UTC2h 5m
2026-06-28 RVJ400 - Jun 28, 13:40 UTCJun 28, 14:54 UTC1h 15m
2026-06-26 RVJ400 - Jun 26, 20:15 UTCJun 26, 21:35 UTC1h 20m
2026-06-26 RVJ400 - Jun 26, 18:34 UTCJun 26, 18:49 UTC15m
2026-06-25 RVJ400 - Jun 25, 19:44 UTCJun 25, 20:39 UTC55m
2026-06-25 RVJ400 - Jun 25, 16:05 UTCJun 25, 18:50 UTC2h 45m
2026-06-25 RVJ400 - Jun 25, 14:34 UTCJun 25, 14:55 UTC20m
2026-06-24 RVJ400 - Jun 24, 15:59 UTCJun 24, 17:55 UTC1h 55m
2026-06-24 RVJ400 - Jun 24, 14:00 UTCJun 24, 14:55 UTC55m
2026-06-20 RVJ400 - Jun 20, 22:00 UTCJun 20, 23:55 UTC1h 55m
2026-06-20 RVJ400 - Jun 20, 19:44 UTCJun 20, 20:20 UTC35m
2026-06-20 RVJ400 - Jun 20, 13:29 UTCJun 20, 15:49 UTC2h 20m

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 N400MX page for operator, model, and routing details .

Mode-S A4ADCA frequently asked

What is Mode-S code A4ADCA?
A4ADCA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N400MX.
Where is Mode-S A4ADCA registered?
Mode-S code A4ADCA 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 A4ADCA broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4ADCA, octal 51126712, decimal 10,792,394.
What flights does A4ADCA operate?
Mode-S A4ADCA has broadcast 1 distinct callsign, including RVJ400.