Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A6140A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N491CJ · CIRRUS SR-22T Turbo · operated by COAST TO COAST HOLDINGS LLC

Hex
A6140A
Octal
51412012
Decimal
10,884,106
Country
US
Tail
N491CJ
Type
S22T
No current signal · last broadcast 2d ago
Flights observed
71
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A6140A.

Country allocation

The ICAO 24-bit address A6140A 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
N491CJ - 71 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 N491CJ - Jul 12, 20:30 UTCJul 12, 21:40 UTC1h 10m
2026-07-11 N491CJ - Jul 11, 19:30 UTCJul 11, 20:25 UTC55m
2026-07-11 N491CJ - Jul 11, 18:25 UTCJul 11, 18:45 UTC20m
2026-07-09 N491CJ - Jul 9, 19:50 UTCJul 9, 20:50 UTC1h 0m
2026-07-09 N491CJ - Jul 9, 15:25 UTCJul 9, 16:40 UTC1h 15m
2026-07-09 N491CJ - Jul 9, 01:00 UTCJul 9, 01:15 UTC15m
2026-07-08 N491CJ JCI → JCI Jul 8, 22:25 UTCJul 8, 23:55 UTC1h 30m
2026-07-08 N491CJ - Jul 8, 21:40 UTCJul 8, 21:50 UTC10m
2026-07-08 N491CJ - Jul 8, 02:05 UTCJul 8, 03:15 UTC1h 10m
2026-07-07 N491CJ OJC → OJC Jul 7, 23:30 UTCJul 8, 01:10 UTC1h 40m
2026-07-07 N491CJ - Jul 7, 21:10 UTCJul 7, 21:25 UTC15m
2026-07-03 N491CJ - Jul 3, 19:25 UTCJul 3, 21:15 UTC1h 50m
2026-06-30 N491CJ - Jun 30, 23:20 UTCJul 1, 00:35 UTC1h 15m
2026-06-29 N491CJ - Jun 29, 22:19 UTCJun 29, 23:19 UTC1h 0m
2026-06-26 N491CJ - Jun 26, 18:44 UTCJun 26, 19:09 UTC25m
2026-06-26 N491CJ - Jun 26, 17:44 UTCJun 26, 17:59 UTC15m
2026-06-24 N491CJ - Jun 24, 20:14 UTCJun 24, 21:24 UTC1h 10m
2026-06-24 N491CJ - Jun 24, 18:25 UTCJun 24, 19:04 UTC40m
2026-06-24 N491CJ - Jun 24, 14:00 UTCJun 24, 14:45 UTC45m
2026-06-22 N491CJ - Jun 22, 18:19 UTCJun 22, 18:44 UTC25m
2026-06-22 N491CJ - Jun 22, 15:05 UTCJun 22, 15:29 UTC25m
2026-06-22 N491CJ - Jun 22, 10:49 UTCJun 22, 12:00 UTC1h 10m
2026-06-20 N491CJ - Jun 20, 16:55 UTCJun 20, 17:04 UTC10m
2026-06-20 N491CJ - Jun 20, 15:19 UTCJun 20, 15:39 UTC20m
2026-06-18 N491CJ - Jun 18, 20:55 UTCJun 18, 21:45 UTC50m
2026-06-18 N491CJ - Jun 18, 19:45 UTCJun 18, 20:10 UTC25m
2026-06-18 N491CJ - Jun 18, 01:55 UTCJun 18, 02:15 UTC20m
2026-06-17 N491CJ - Jun 17, 23:30 UTCJun 18, 00:20 UTC50m
2026-06-17 N491CJ - Jun 17, 20:10 UTCJun 17, 21:45 UTC1h 35m
2026-06-17 N491CJ - Jun 17, 17:35 UTCJun 17, 19:25 UTC1h 50m
2026-06-15 N491CJ - Jun 15, 13:45 UTCJun 15, 15:30 UTC1h 45m
2026-06-15 N491CJ - Jun 15, 11:00 UTCJun 15, 13:05 UTC2h 5m
2026-06-14 N491CJ - Jun 14, 17:55 UTCJun 14, 19:00 UTC1h 5m
2026-06-14 N491CJ - Jun 14, 16:05 UTCJun 14, 16:55 UTC50m
2026-06-13 N491CJ - Jun 13, 16:05 UTCJun 13, 17:00 UTC55m
2026-06-13 N491CJ - Jun 13, 13:30 UTCJun 13, 14:40 UTC1h 10m
2026-06-11 N491CJ - Jun 11, 23:50 UTCJun 12, 01:40 UTC1h 51m
2026-06-11 N491CJ - Jun 11, 03:30 UTCJun 11, 04:35 UTC1h 5m
2026-06-11 N491CJ - Jun 11, 01:45 UTCJun 11, 02:10 UTC25m
2026-06-10 N491CJ - Jun 10, 22:45 UTCJun 10, 23:20 UTC35m
2026-06-10 N491CJ - Jun 10, 20:15 UTCJun 10, 20:40 UTC25m
2026-06-08 N491CJ - Jun 8, 03:45 UTCJun 8, 04:20 UTC35m
2026-06-08 N491CJ - Jun 8, 00:35 UTCJun 8, 01:10 UTC35m
2026-06-07 N491CJ - Jun 7, 20:50 UTCJun 7, 21:10 UTC20m
2026-06-07 N491CJ - Jun 7, 19:55 UTCJun 7, 20:15 UTC20m
2026-06-05 N491CJ - Jun 5, 00:10 UTCJun 5, 01:15 UTC1h 5m
2026-06-02 N491CJ - Jun 2, 21:30 UTCJun 2, 22:35 UTC1h 5m
2026-06-02 N491CJ - Jun 2, 13:25 UTCJun 2, 14:30 UTC1h 5m
2026-05-31 N491CJ - May 31, 20:35 UTCMay 31, 21:05 UTC30m
2026-05-28 N491CJ - May 28, 14:20 UTCMay 28, 14:35 UTC15m

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 N491CJ page for operator, model, and routing details .

Mode-S A6140A frequently asked

What is Mode-S code A6140A?
A6140A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N491CJ.
Where is Mode-S A6140A registered?
Mode-S code A6140A 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 A6140A 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 A6140A, octal 51412012, decimal 10,884,106.
What flights does A6140A operate?
Mode-S A6140A has broadcast 1 distinct callsign, including N491CJ.