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sensors Mode-S transponder

A94EF3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N6993N · CESSNA T210 Turbo Centurion · operated by SP AIRCRAFT LLC

Hex
A94EF3
Octal
52247363
Decimal
11,095,795
Country
US
Tail
N6993N
Type
T210
No current signal · last broadcast Jul 24, 18:05 UTC
Flights observed
38
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 18:05 UTC

Last known position

Most recent position reported by Mode-S A94EF3.

Country allocation

The ICAO 24-bit address A94EF3 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
N6993N - 38 2026-07-24

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-24 N6993N - Jul 24, 17:55 UTCJul 24, 18:05 UTC10m
2026-07-24 N6993N - Jul 24, 16:45 UTCJul 24, 17:15 UTC30m
2026-07-21 N6993N - Jul 21, 19:05 UTCJul 21, 19:25 UTC20m
2026-07-21 N6993N - Jul 21, 18:10 UTCJul 21, 18:25 UTC15m
2026-07-18 N6993N - Jul 18, 14:10 UTCJul 18, 14:25 UTC15m
2026-07-18 N6993N - Jul 18, 13:05 UTCJul 18, 13:30 UTC25m
2026-07-17 N6993N - Jul 17, 20:15 UTCJul 17, 20:25 UTC10m
2026-07-17 N6993N - Jul 17, 15:00 UTCJul 17, 15:15 UTC15m
2026-07-10 N6993N - Jul 10, 15:20 UTCJul 10, 15:40 UTC20m
2026-07-10 N6993N - Jul 10, 14:15 UTCJul 10, 14:35 UTC20m
2026-07-03 N6993N - Jul 3, 01:30 UTCJul 3, 01:50 UTC20m
2026-07-02 N6993N - Jul 2, 16:30 UTCJul 2, 16:50 UTC20m
2026-06-26 N6993N - Jun 26, 07:14 UTCJun 26, 07:39 UTC25m
2026-06-23 N6993N - Jun 23, 18:29 UTCJun 23, 18:45 UTC15m
2026-06-23 N6993N - Jun 23, 17:25 UTCJun 23, 17:39 UTC15m
2026-06-20 N6993N - Jun 20, 18:49 UTCJun 20, 18:59 UTC10m
2026-06-20 N6993N - Jun 20, 17:44 UTCJun 20, 17:59 UTC15m
2026-06-19 N6993N - Jun 19, 05:40 UTCJun 19, 07:14 UTC1h 35m
2026-06-18 N6993N - Jun 18, 20:10 UTCJun 18, 21:40 UTC1h 30m
2026-05-20 N6993N - May 20, 19:35 UTCMay 20, 19:50 UTC15m
2026-05-20 N6993N - May 20, 18:35 UTCMay 20, 18:50 UTC15m
2026-05-20 N6993N - May 20, 14:20 UTCMay 20, 14:45 UTC25m
2026-05-19 N6993N - May 19, 16:00 UTCMay 19, 17:55 UTC1h 55m
2026-05-18 N6993N - May 18, 12:35 UTCMay 18, 13:10 UTC35m
2026-05-18 N6993N - May 18, 11:15 UTCMay 18, 11:35 UTC20m
2026-05-12 N6993N - May 12, 20:20 UTCMay 12, 20:35 UTC15m
2026-05-12 N6993N - May 12, 19:10 UTCMay 12, 19:20 UTC10m
2026-05-07 N6993N - May 7, 13:55 UTCMay 7, 14:15 UTC20m
2026-04-24 N6993N - Apr 24, 20:40 UTCApr 24, 20:55 UTC15m
2026-04-24 N6993N - Apr 24, 19:45 UTCApr 24, 20:00 UTC15m
2026-04-23 N6993N - Apr 23, 14:25 UTCApr 23, 14:45 UTC20m
2026-04-19 N6993N - Apr 19, 16:40 UTCApr 19, 17:00 UTC20m
2026-04-19 N6993N - Apr 19, 15:35 UTCApr 19, 16:00 UTC25m
2026-04-19 N6993N - Apr 19, 14:45 UTCApr 19, 15:05 UTC20m
2026-04-19 N6993N - Apr 19, 13:55 UTCApr 19, 14:10 UTC15m
2026-04-17 N6993N - Apr 17, 22:20 UTCApr 17, 22:40 UTC20m
2026-04-17 N6993N - Apr 17, 20:15 UTCApr 17, 20:25 UTC10m
2026-04-17 N6993N - Apr 17, 19:05 UTCApr 17, 19:20 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 N6993N page for operator, model, and routing details .

Mode-S A94EF3 frequently asked

What is Mode-S code A94EF3?
A94EF3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N6993N.
Where is Mode-S A94EF3 registered?
Mode-S code A94EF3 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 A94EF3 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 18:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A94EF3, octal 52247363, decimal 11,095,795.
What flights does A94EF3 operate?
Mode-S A94EF3 has broadcast 1 distinct callsign, including N6993N.