Apparatus

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sensors Mode-S transponder

A20A7D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N230WJ · CIRRUS SR-22 · operated by CENTER ICE SCOUTING LLC

Hex
A20A7D
Octal
50405175
Decimal
10,619,517
Country
US
Tail
N230WJ
Type
SR22
No current signal · last broadcast Jul 26, 00:40 UTC
Flights observed
55
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 00:40 UTC

Last known position

Most recent position reported by Mode-S A20A7D.

Country allocation

The ICAO 24-bit address A20A7D 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
N230WJ - 55 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N230WJ - Jul 25, 21:55 UTCJul 26, 00:40 UTC2h 45m
2026-07-25 N230WJ - Jul 25, 18:45 UTCJul 25, 19:00 UTC15m
2026-07-17 N230WJ - Jul 17, 18:05 UTCJul 17, 20:20 UTC2h 15m
2026-07-15 N230WJ - Jul 15, 17:00 UTCJul 15, 17:10 UTC10m
2026-07-14 N230WJ - Jul 14, 14:05 UTCJul 14, 14:35 UTC30m
2026-07-13 N230WJ - Jul 13, 13:30 UTCJul 13, 14:30 UTC1h 0m
2026-07-12 N230WJ - Jul 12, 17:20 UTCJul 12, 18:45 UTC1h 25m
2026-07-12 N230WJ - Jul 12, 14:45 UTCJul 12, 15:50 UTC1h 5m
2026-07-11 N230WJ - Jul 11, 14:25 UTCJul 11, 16:30 UTC2h 5m
2026-07-10 N230WJ - Jul 10, 23:25 UTCJul 11, 00:20 UTC55m
2026-07-08 N230WJ - Jul 8, 15:45 UTCJul 8, 16:50 UTC1h 5m
2026-07-07 N230WJ - Jul 7, 21:30 UTCJul 8, 00:00 UTC2h 30m
2026-07-07 N230WJ - Jul 7, 20:30 UTCJul 7, 20:55 UTC25m
2026-07-07 N230WJ - Jul 7, 18:20 UTCJul 7, 19:40 UTC1h 20m
2026-07-04 N230WJ - Jul 4, 21:05 UTCJul 4, 22:20 UTC1h 15m
2026-07-04 N230WJ - Jul 4, 14:35 UTCJul 4, 16:15 UTC1h 40m
2026-07-02 N230WJ - Jul 2, 16:30 UTCJul 2, 17:55 UTC1h 25m
2026-07-02 N230WJ - Jul 2, 13:35 UTCJul 2, 14:10 UTC35m
2026-07-01 N230WJ - Jul 1, 14:05 UTCJul 1, 15:20 UTC1h 15m
2026-07-01 N230WJ - Jul 1, 12:55 UTCJul 1, 13:20 UTC25m
2026-07-01 N230WJ - Jul 1, 09:40 UTCJul 1, 12:20 UTC2h 40m
2026-06-28 N230WJ - Jun 28, 22:34 UTCJun 29, 00:00 UTC1h 25m
2026-06-25 N230WJ - Jun 25, 22:39 UTCJun 25, 22:54 UTC15m
2026-06-25 N230WJ - Jun 25, 20:59 UTCJun 25, 22:04 UTC1h 5m
2026-06-24 N230WJ - Jun 24, 20:14 UTCJun 24, 21:00 UTC45m
2026-06-24 N230WJ - Jun 24, 13:10 UTCJun 24, 13:50 UTC40m
2026-06-24 N230WJ - Jun 24, 02:49 UTCJun 24, 03:19 UTC30m
2026-06-24 N230WJ - Jun 24, 01:30 UTCJun 24, 02:00 UTC30m
2026-06-24 N230WJ - Jun 24, 00:34 UTCJun 24, 00:55 UTC20m
2026-06-23 N230WJ - Jun 23, 23:19 UTCJun 23, 23:34 UTC15m
2026-06-23 N230WJ - Jun 23, 22:10 UTCJun 23, 22:25 UTC15m
2026-06-20 N230WJ - Jun 20, 02:35 UTCJun 20, 03:39 UTC1h 5m
2026-06-20 N230WJ - Jun 20, 00:09 UTCJun 20, 01:14 UTC1h 5m
2026-06-19 N230WJ - Jun 19, 23:09 UTCJun 19, 23:19 UTC10m
2026-06-19 N230WJ - Jun 19, 20:04 UTCJun 19, 21:09 UTC1h 5m
2026-06-19 N230WJ - Jun 19, 14:54 UTCJun 19, 15:59 UTC1h 5m
2026-06-17 N230WJ - Jun 17, 14:05 UTCJun 17, 14:15 UTC10m
2026-06-17 N230WJ - Jun 17, 02:40 UTCJun 17, 03:50 UTC1h 10m
2026-06-17 N230WJ - Jun 17, 00:10 UTCJun 17, 01:15 UTC1h 5m
2026-06-16 N230WJ - Jun 16, 15:45 UTCJun 16, 16:30 UTC45m
2026-06-16 N230WJ - Jun 16, 13:50 UTCJun 16, 14:15 UTC25m
2026-06-15 N230WJ - Jun 15, 15:35 UTCJun 15, 17:30 UTC1h 55m
2026-06-13 N230WJ - Jun 13, 22:20 UTCJun 13, 23:00 UTC40m
2026-06-13 N230WJ - Jun 13, 12:55 UTCJun 13, 13:35 UTC40m
2026-06-11 N230WJ - Jun 11, 12:40 UTCJun 11, 13:25 UTC45m
2026-06-11 N230WJ - Jun 11, 01:25 UTCJun 11, 01:50 UTC25m
2026-06-09 N230WJ - Jun 9, 20:40 UTCJun 9, 21:20 UTC40m
2026-06-09 N230WJ - Jun 9, 19:25 UTCJun 9, 20:05 UTC40m
2026-04-21 N230WJ - Apr 21, 15:35 UTCApr 21, 15:51 UTC15m
2026-04-21 N230WJ - Apr 21, 13:05 UTCApr 21, 14:55 UTC1h 50m

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 N230WJ page for operator, model, and routing details .

Mode-S A20A7D frequently asked

What is Mode-S code A20A7D?
A20A7D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N230WJ.
Where is Mode-S A20A7D registered?
Mode-S code A20A7D 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 A20A7D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 00:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A20A7D, octal 50405175, decimal 10,619,517.
What flights does A20A7D operate?
Mode-S A20A7D has broadcast 1 distinct callsign, including N230WJ.