Apparatus

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sensors Mode-S transponder

AD105B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9406J · PIPER PA-28-140/150/160/180 · operated by NORTH COUNTY FLIGHT TRAINING INC

Hex
AD105B
Octal
53210133
Decimal
11,341,915
Country
US
Tail
N9406J
Type
P28A
No current signal · last broadcast 3h ago
Flights observed
127
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AD105B.

Country allocation

The ICAO 24-bit address AD105B 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
N9406J - 127 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 N9406J OCN → OCN May 30, 01:40 UTCMay 30, 01:55 UTC15m
2026-05-29 N9406J - May 29, 20:00 UTCMay 29, 20:05 UTC5m
2026-05-29 N9406J OCN → OCN May 29, 19:00 UTCMay 29, 19:55 UTC55m
2026-05-29 N9406J - May 29, 01:00 UTCMay 29, 01:50 UTC50m
2026-05-29 N9406J - May 29, 00:10 UTCMay 29, 00:25 UTC15m
2026-05-28 N9406J OCN → OCN May 28, 21:45 UTCMay 28, 22:30 UTC45m
2026-05-27 N9406J AVX → OCN May 27, 20:30 UTCMay 27, 21:05 UTC35m
2026-05-27 N9406J OCN → AVX May 27, 18:40 UTCMay 27, 19:25 UTC45m
2026-05-26 N9406J - May 26, 23:45 UTCMay 27, 00:44 UTC1h 0m
2026-05-26 N9406J - May 26, 17:59 UTCMay 26, 18:14 UTC15m
2026-05-26 N9406J OCN → OCN May 26, 00:49 UTCMay 26, 00:54 UTC5m
2026-05-26 N9406J - May 26, 00:00 UTCMay 26, 00:44 UTC45m
2026-05-25 N9406J OCN → OCN May 25, 23:40 UTCMay 25, 23:45 UTC5m
2026-05-25 N9406J OCN → OCN May 25, 22:15 UTCMay 25, 22:34 UTC20m
2026-05-25 N9406J OCN → OCN May 25, 21:45 UTCMay 25, 21:49 UTC5m
2026-05-25 N9406J - May 25, 19:35 UTCMay 25, 19:44 UTC10m
2026-05-25 N9406J OCN → OCN May 25, 19:15 UTCMay 25, 19:30 UTC15m
2026-05-25 N9406J OCN → OCN May 25, 18:45 UTCMay 25, 18:50 UTC5m
2026-05-24 N9406J OCN → OCN May 24, 21:40 UTCMay 24, 21:45 UTC5m
2026-05-23 N9406J OCN → OCN May 23, 21:40 UTCMay 23, 21:50 UTC10m
2026-05-23 N9406J OCN → OCN May 23, 21:20 UTCMay 23, 21:35 UTC15m
2026-05-23 N9406J OCN → OCN May 23, 21:10 UTCMay 23, 21:15 UTC5m
2026-05-23 N9406J - May 23, 18:05 UTCMay 23, 19:25 UTC1h 20m
2026-05-23 N9406J OCN → OCN May 23, 16:20 UTCMay 23, 17:30 UTC1h 10m
2026-05-22 N9406J - May 22, 23:45 UTCMay 22, 23:55 UTC10m
2026-05-22 N9406J - May 22, 23:05 UTCMay 22, 23:40 UTC35m
2026-05-22 N9406J - May 22, 22:50 UTCMay 22, 22:55 UTC5m
2026-05-22 N9406J OCN → OCN May 22, 22:15 UTCMay 22, 22:35 UTC20m
2026-05-22 N9406J OCN → OCN May 22, 17:25 UTCMay 22, 18:45 UTC1h 20m
2026-05-21 N9406J OCN → OCN May 21, 21:10 UTCMay 21, 21:30 UTC20m
2026-05-21 N9406J OCN → OCN May 21, 20:25 UTCMay 21, 20:35 UTC10m
2026-05-21 N9406J - May 21, 01:25 UTCMay 21, 01:30 UTC5m
2026-05-21 N9406J OCN → OCN May 21, 00:40 UTCMay 21, 01:20 UTC40m
2026-05-20 N9406J - May 20, 22:20 UTCMay 20, 22:40 UTC20m
2026-05-20 N9406J OCN → OCN May 20, 22:00 UTCMay 20, 22:05 UTC5m
2026-05-20 N9406J OCN → OCN May 20, 18:15 UTCMay 20, 18:20 UTC5m
2026-05-20 N9406J - May 20, 01:35 UTCMay 20, 02:20 UTC45m
2026-05-20 N9406J OCN → OCN May 20, 01:20 UTCMay 20, 01:30 UTC10m
2026-05-19 N9406J - May 19, 23:40 UTCMay 20, 00:40 UTC1h 0m
2026-05-19 N9406J OCN → OCN May 19, 01:15 UTCMay 19, 01:55 UTC40m
2026-05-18 N9406J OCN → OCN May 18, 20:50 UTCMay 18, 21:05 UTC15m
2026-05-18 N9406J OCN → OCN May 18, 18:45 UTCMay 18, 20:00 UTC1h 15m
2026-05-17 N9406J OCN → OCN May 17, 20:20 UTCMay 17, 21:35 UTC1h 15m
2026-05-16 N9406J - May 16, 17:45 UTCMay 16, 19:00 UTC1h 15m
2026-05-16 N9406J OCN → OCN May 16, 15:50 UTCMay 16, 17:25 UTC1h 35m
2026-05-16 N9406J - May 16, 00:50 UTCMay 16, 00:55 UTC5m
2026-05-16 N9406J - May 16, 00:25 UTCMay 16, 00:45 UTC20m
2026-05-15 N9406J OCN → OCN May 15, 18:25 UTCMay 15, 20:00 UTC1h 35m
2026-05-14 N9406J OCN → OCN May 14, 18:10 UTCMay 14, 18:50 UTC40m
2026-05-14 N9406J - May 14, 01:45 UTCMay 14, 01:50 UTC5m

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 N9406J page for operator, model, and routing details .

Mode-S AD105B frequently asked

What is Mode-S code AD105B?
AD105B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9406J.
Where is Mode-S AD105B registered?
Mode-S code AD105B 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 AD105B broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD105B, octal 53210133, decimal 11,341,915.
What flights does AD105B operate?
Mode-S AD105B has broadcast 1 distinct callsign, including N9406J.