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sensors Mode-S transponder

A21AD6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2348K · S-20 RAVEN · operated by WEST DESERT AVIATORS

Hex
A21AD6
Octal
50415326
Decimal
10,623,702
Country
US
Tail
N2348K
Type
ULAC
No current signal · last broadcast Jul 25, 14:40 UTC
Flights observed
77
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 14:40 UTC

Last known position

Most recent position reported by Mode-S A21AD6.

Country allocation

The ICAO 24-bit address A21AD6 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
N2348K - 77 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N2348K - Jul 25, 12:45 UTCJul 25, 14:40 UTC1h 55m
2026-07-24 N2348K - Jul 24, 17:05 UTCJul 24, 17:25 UTC20m
2026-07-24 N2348K - Jul 24, 12:45 UTCJul 24, 12:55 UTC10m
2026-07-18 N2348K - Jul 18, 13:10 UTCJul 18, 14:25 UTC1h 15m
2026-07-18 N2348K - Jul 18, 12:25 UTCJul 18, 13:00 UTC35m
2026-07-17 N2348K - Jul 17, 16:55 UTCJul 17, 17:20 UTC25m
2026-07-17 N2348K - Jul 17, 15:29 UTCJul 17, 16:34 UTC1h 5m
2026-07-17 N2348K - Jul 17, 15:00 UTCJul 17, 15:10 UTC10m
2026-07-17 N2348K - Jul 17, 14:24 UTCJul 17, 14:50 UTC25m
2026-07-14 N2348K - Jul 14, 15:20 UTCJul 14, 16:15 UTC55m
2026-06-21 N2348K - Jun 21, 17:20 UTCJun 21, 17:45 UTC25m
2026-06-21 N2348K - Jun 21, 16:14 UTCJun 21, 17:15 UTC1h 0m
2026-06-20 N2348K - Jun 20, 12:19 UTCJun 20, 12:39 UTC20m
2026-06-20 N2348K - Jun 20, 03:49 UTCJun 20, 05:09 UTC1h 20m
2026-06-19 N2348K - Jun 19, 20:04 UTCJun 19, 20:40 UTC35m
2026-06-19 N2348K - Jun 19, 13:50 UTCJun 19, 14:15 UTC25m
2026-06-18 N2348K - Jun 18, 04:25 UTCJun 18, 08:00 UTC3h 35m
2026-06-16 N2348K - Jun 16, 13:25 UTCJun 16, 16:05 UTC2h 40m
2026-06-15 N2348K - Jun 15, 19:10 UTCJun 15, 19:25 UTC15m
2026-06-15 N2348K - Jun 15, 16:24 UTCJun 15, 17:15 UTC50m
2026-06-15 N2348K - Jun 15, 15:55 UTCJun 15, 16:19 UTC25m
2026-06-15 N2348K - Jun 15, 14:10 UTCJun 15, 15:15 UTC1h 5m
2026-06-14 N2348K - Jun 14, 16:00 UTCJun 14, 16:30 UTC30m
2026-06-14 N2348K - Jun 14, 14:25 UTCJun 14, 14:40 UTC15m
2026-06-13 N2348K - Jun 13, 13:25 UTCJun 13, 14:50 UTC1h 25m
2026-06-12 N2348K - Jun 12, 17:35 UTCJun 12, 18:55 UTC1h 20m
2026-06-11 N2348K - Jun 11, 16:35 UTCJun 11, 17:55 UTC1h 20m
2026-06-11 N2348K - Jun 11, 15:35 UTCJun 11, 15:55 UTC20m
2026-06-11 N2348K - Jun 11, 14:10 UTCJun 11, 15:20 UTC1h 10m
2026-06-11 N2348K - Jun 11, 13:30 UTCJun 11, 13:55 UTC25m
2026-06-07 N2348K - Jun 7, 13:20 UTCJun 7, 13:40 UTC20m
2026-06-07 N2348K - Jun 7, 12:20 UTCJun 7, 12:55 UTC35m
2026-06-05 N2348K - Jun 5, 17:15 UTCJun 5, 17:35 UTC20m
2026-06-05 N2348K - Jun 5, 14:40 UTCJun 5, 16:05 UTC1h 25m
2026-05-31 N2348K - May 31, 23:35 UTCJun 1, 00:40 UTC1h 5m
2026-05-31 N2348K - May 31, 13:50 UTCMay 31, 14:35 UTC45m
2026-05-31 N2348K - May 31, 12:30 UTCMay 31, 13:45 UTC1h 15m
2026-05-25 N2348K - May 25, 12:30 UTCMay 25, 13:15 UTC45m
2026-05-24 N2348K - May 24, 18:05 UTCMay 24, 18:15 UTC10m
2026-05-24 N2348K - May 24, 15:15 UTCMay 24, 15:30 UTC15m
2026-05-23 N2348K - May 23, 19:10 UTCMay 23, 20:45 UTC1h 35m
2026-05-23 N2348K - May 23, 15:05 UTCMay 23, 16:50 UTC1h 45m
2026-05-22 N2348K - May 22, 21:10 UTCMay 22, 22:30 UTC1h 20m
2026-05-20 N2348K - May 20, 15:00 UTCMay 20, 16:05 UTC1h 5m
2026-05-16 N2348K - May 16, 12:25 UTCMay 16, 14:05 UTC1h 40m
2026-05-12 N2348K - May 12, 16:10 UTCMay 12, 16:20 UTC10m
2026-05-12 N2348K - May 12, 14:25 UTCMay 12, 15:30 UTC1h 5m
2026-05-10 N2348K - May 10, 20:25 UTCMay 10, 22:45 UTC2h 20m
2026-05-10 N2348K - May 10, 16:50 UTCMay 10, 16:59 UTC10m
2026-05-10 N2348K - May 10, 13:10 UTCMay 10, 13:55 UTC45m

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 N2348K page for operator, model, and routing details .

Mode-S A21AD6 frequently asked

What is Mode-S code A21AD6?
A21AD6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2348K.
Where is Mode-S A21AD6 registered?
Mode-S code A21AD6 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 A21AD6 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 14:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A21AD6, octal 50415326, decimal 10,623,702.
What flights does A21AD6 operate?
Mode-S A21AD6 has broadcast 1 distinct callsign, including N2348K.