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sensors Mode-S transponder

ADC4C4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9867J · CESSNA 172 Skyhawk · operated by NORBY AVIATION LLC

Hex
ADC4C4
Octal
53342304
Decimal
11,388,100
Country
US
Tail
N9867J
Type
C172
No current signal · last broadcast 7d ago
Flights observed
103
Distinct callsigns
1
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S ADC4C4.

Country allocation

The ICAO 24-bit address ADC4C4 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
N9867J - 103 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N9867J - Jul 25, 17:10 UTCJul 25, 17:55 UTC45m
2026-07-24 N9867J - Jul 24, 19:25 UTCJul 24, 19:55 UTC30m
2026-07-24 N9867J - Jul 24, 17:00 UTCJul 24, 18:20 UTC1h 20m
2026-07-24 N9867J - Jul 24, 14:20 UTCJul 24, 15:55 UTC1h 35m
2026-07-23 N9867J - Jul 23, 21:00 UTCJul 23, 21:55 UTC55m
2026-07-23 N9867J - Jul 23, 19:25 UTCJul 23, 19:55 UTC30m
2026-07-20 N9867J - Jul 20, 15:45 UTCJul 20, 17:10 UTC1h 25m
2026-07-20 N9867J - Jul 20, 14:00 UTCJul 20, 14:40 UTC40m
2026-07-17 N9867J - Jul 17, 21:30 UTCJul 17, 22:15 UTC45m
2026-07-16 N9867J - Jul 16, 14:40 UTCJul 16, 15:45 UTC1h 5m
2026-07-16 N9867J - Jul 16, 13:25 UTCJul 16, 13:34 UTC10m
2026-07-16 N9867J - Jul 16, 12:44 UTCJul 16, 13:20 UTC35m
2026-07-15 N9867J - Jul 15, 20:30 UTCJul 15, 20:45 UTC15m
2026-07-15 N9867J - Jul 15, 12:15 UTCJul 15, 12:35 UTC20m
2026-07-15 N9867J - Jul 15, 11:55 UTCJul 15, 12:10 UTC15m
2026-07-15 N9867J - Jul 15, 11:30 UTCJul 15, 11:50 UTC20m
2026-07-13 N9867J - Jul 13, 13:15 UTCJul 13, 14:05 UTC50m
2026-07-13 N9867J - Jul 13, 12:50 UTCJul 13, 13:10 UTC20m
2026-07-12 N9867J - Jul 12, 17:50 UTCJul 12, 18:20 UTC30m
2026-07-12 N9867J - Jul 12, 17:15 UTCJul 12, 17:45 UTC30m
2026-07-12 N9867J - Jul 12, 15:10 UTCJul 12, 15:50 UTC40m
2026-07-12 N9867J - Jul 12, 14:45 UTCJul 12, 14:50 UTC5m
2026-07-11 N9867J - Jul 11, 15:40 UTCJul 11, 15:50 UTC10m
2026-07-11 N9867J - Jul 11, 15:25 UTCJul 11, 15:30 UTC5m
2026-07-11 N9867J - Jul 11, 15:00 UTCJul 11, 15:20 UTC20m
2026-07-10 N9867J - Jul 10, 19:30 UTCJul 10, 19:45 UTC15m
2026-07-10 N9867J - Jul 10, 19:15 UTCJul 10, 19:25 UTC10m
2026-07-10 N9867J - Jul 10, 18:55 UTCJul 10, 19:10 UTC15m
2026-07-10 N9867J - Jul 10, 16:40 UTCJul 10, 17:50 UTC1h 10m
2026-07-10 N9867J - Jul 10, 14:10 UTCJul 10, 15:50 UTC1h 40m
2026-07-09 N9867J - Jul 9, 19:15 UTCJul 9, 19:40 UTC25m
2026-07-09 N9867J - Jul 9, 17:15 UTCJul 9, 17:50 UTC35m
2026-07-09 N9867J - Jul 9, 15:15 UTCJul 9, 15:45 UTC30m
2026-07-09 N9867J - Jul 9, 14:50 UTCJul 9, 15:10 UTC20m
2026-07-09 N9867J - Jul 9, 12:40 UTCJul 9, 13:55 UTC1h 15m
2026-07-08 N9867J - Jul 8, 22:45 UTCJul 8, 23:05 UTC20m
2026-07-08 N9867J - Jul 8, 19:25 UTCJul 8, 19:50 UTC25m
2026-07-08 N9867J - Jul 8, 12:55 UTCJul 8, 14:05 UTC1h 10m
2026-07-05 N9867J - Jul 5, 17:40 UTCJul 5, 19:20 UTC1h 40m
2026-07-05 N9867J - Jul 5, 15:50 UTCJul 5, 16:45 UTC55m
2026-07-03 N9867J - Jul 3, 18:55 UTCJul 3, 19:35 UTC40m
2026-07-03 N9867J - Jul 3, 16:55 UTCJul 3, 17:45 UTC50m
2026-07-03 N9867J - Jul 3, 13:50 UTCJul 3, 14:00 UTC10m
2026-07-03 N9867J - Jul 3, 13:35 UTCJul 3, 13:45 UTC10m
2026-07-03 N9867J - Jul 3, 12:55 UTCJul 3, 13:10 UTC15m
2026-07-02 N9867J - Jul 2, 17:00 UTCJul 2, 17:20 UTC20m
2026-07-02 N9867J - Jul 2, 14:20 UTCJul 2, 14:50 UTC30m
2026-07-02 N9867J - Jul 2, 12:35 UTCJul 2, 13:40 UTC1h 5m
2026-06-28 N9867J - Jun 28, 17:50 UTCJun 28, 18:14 UTC25m
2026-06-28 N9867J - Jun 28, 16:49 UTCJun 28, 17:34 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 N9867J page for operator, model, and routing details .

Mode-S ADC4C4 frequently asked

What is Mode-S code ADC4C4?
ADC4C4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9867J.
Where is Mode-S ADC4C4 registered?
Mode-S code ADC4C4 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 ADC4C4 broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADC4C4, octal 53342304, decimal 11,388,100.
What flights does ADC4C4 operate?
Mode-S ADC4C4 has broadcast 1 distinct callsign, including N9867J.