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sensors Mode-S transponder

AD422C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9530H · CESSNA 172 Skyhawk · operated by HORIZON AIRCRAFT SALES & LEASING INC

Hex
AD422C
Octal
53241054
Decimal
11,354,668
Country
US
Tail
N9530H
Type
C172
No current signal · last broadcast 20h ago
Flights observed
53
Distinct callsigns
1
Country
US
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S AD422C.

Country allocation

The ICAO 24-bit address AD422C 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
N9530H - 53 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N9530H - Jul 14, 20:35 UTCJul 14, 21:50 UTC1h 15m
2026-07-14 N9530H - Jul 14, 16:55 UTCJul 14, 17:55 UTC1h 0m
2026-07-10 N9530H - Jul 10, 20:40 UTCJul 10, 21:30 UTC50m
2026-07-10 N9530H - Jul 10, 13:00 UTCJul 10, 14:00 UTC1h 0m
2026-07-09 N9530H - Jul 9, 21:25 UTCJul 9, 21:35 UTC10m
2026-07-09 N9530H - Jul 9, 20:30 UTCJul 9, 21:15 UTC45m
2026-07-07 N9530H - Jul 7, 17:00 UTCJul 7, 17:50 UTC50m
2026-07-07 N9530H - Jul 7, 15:05 UTCJul 7, 16:00 UTC55m
2026-07-06 N9530H - Jul 6, 17:05 UTCJul 6, 17:45 UTC40m
2026-07-05 N9530H - Jul 5, 16:40 UTCJul 5, 17:30 UTC50m
2026-07-04 N9530H - Jul 4, 12:55 UTCJul 4, 13:55 UTC1h 0m
2026-07-01 N9530H - Jul 1, 19:00 UTCJul 1, 19:55 UTC55m
2026-06-30 N9530H - Jun 30, 22:45 UTCJun 30, 23:40 UTC55m
2026-06-29 N9530H - Jun 29, 22:49 UTCJun 29, 23:54 UTC1h 5m
2026-06-29 N9530H - Jun 29, 21:14 UTCJun 29, 22:39 UTC1h 25m
2026-06-27 N9530H - Jun 27, 16:35 UTCJun 27, 17:20 UTC45m
2026-06-26 N9530H - Jun 26, 17:29 UTCJun 26, 17:54 UTC25m
2026-06-25 N9530H - Jun 25, 21:59 UTCJun 26, 00:20 UTC2h 20m
2026-06-25 N9530H - Jun 25, 18:50 UTCJun 25, 19:39 UTC50m
2026-06-25 N9530H - Jun 25, 14:29 UTCJun 25, 15:59 UTC1h 30m
2026-06-24 N9530H - Jun 24, 20:40 UTCJun 24, 21:24 UTC45m
2026-06-24 N9530H - Jun 24, 18:29 UTCJun 24, 19:29 UTC1h 0m
2026-06-24 N9530H - Jun 24, 16:50 UTCJun 24, 17:29 UTC40m
2026-06-24 N9530H - Jun 24, 15:00 UTCJun 24, 15:49 UTC50m
2026-06-23 N9530H - Jun 23, 16:29 UTCJun 23, 17:39 UTC1h 10m
2026-06-23 N9530H - Jun 23, 13:29 UTCJun 23, 14:15 UTC45m
2026-06-22 N9530H - Jun 22, 16:54 UTCJun 22, 17:10 UTC15m
2026-06-17 N9530H - Jun 17, 20:05 UTCJun 17, 20:20 UTC15m
2026-06-15 N9530H - Jun 15, 20:30 UTCJun 15, 21:45 UTC1h 15m
2026-06-15 N9530H - Jun 15, 16:55 UTCJun 15, 17:34 UTC40m
2026-06-15 N9530H - Jun 15, 14:50 UTCJun 15, 15:45 UTC55m
2026-06-12 N9530H - Jun 12, 20:55 UTCJun 12, 21:45 UTC50m
2026-06-10 N9530H - Jun 10, 13:00 UTCJun 10, 13:55 UTC55m
2026-06-05 N9530H - Jun 5, 18:20 UTCJun 5, 19:50 UTC1h 30m
2026-06-03 N9530H - Jun 3, 19:45 UTCJun 3, 20:00 UTC15m
2026-06-03 N9530H - Jun 3, 18:35 UTCJun 3, 18:50 UTC15m
2026-06-03 N9530H - Jun 3, 16:10 UTCJun 3, 17:00 UTC50m
2026-05-24 N9530H - May 24, 18:45 UTCMay 24, 19:25 UTC40m
2026-05-20 N9530H - May 20, 18:55 UTCMay 20, 19:30 UTC35m
2026-05-20 N9530H - May 20, 14:45 UTCMay 20, 15:40 UTC55m
2026-05-20 N9530H - May 20, 12:45 UTCMay 20, 13:50 UTC1h 5m
2026-05-12 N9530H - May 12, 18:45 UTCMay 12, 20:01 UTC1h 15m
2026-05-12 N9530H - May 12, 16:35 UTCMay 12, 17:50 UTC1h 15m
2026-05-09 N9530H - May 9, 16:55 UTCMay 9, 17:49 UTC55m
2026-05-09 N9530H - May 9, 14:45 UTCMay 9, 15:55 UTC1h 10m
2026-05-08 N9530H - May 8, 13:20 UTCMay 8, 14:45 UTC1h 25m
2026-05-05 N9530H - May 5, 20:40 UTCMay 5, 21:50 UTC1h 10m
2026-05-05 N9530H - May 5, 13:45 UTCMay 5, 15:10 UTC1h 25m
2026-05-04 N9530H - May 4, 18:50 UTCMay 4, 19:40 UTC50m
2026-05-04 N9530H - May 4, 16:40 UTCMay 4, 17:25 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 N9530H page for operator, model, and routing details .

Mode-S AD422C frequently asked

What is Mode-S code AD422C?
AD422C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9530H.
Where is Mode-S AD422C registered?
Mode-S code AD422C 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 AD422C broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD422C, octal 53241054, decimal 11,354,668.
What flights does AD422C operate?
Mode-S AD422C has broadcast 1 distinct callsign, including N9530H.