Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A9A0F9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7198N · ROBINSON R-22 Mariner · operated by AERO LEASING INC

Hex
A9A0F9
Octal
52320371
Decimal
11,116,793
Country
US
Tail
N7198N
Type
R22
No current signal · last broadcast 9h ago
Flights observed
19
Distinct callsigns
1
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A9A0F9.

Country allocation

The ICAO 24-bit address A9A0F9 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
N7198N - 19 2026-06-10

Recent flights last 19

DateFlightRouteTakeoffLandingDuration
2026-06-10 N7198N MCC → MCC Jun 10, 01:55 UTCJun 10, 02:10 UTC15m
2026-06-10 N7198N MCC → MCC Jun 10, 01:25 UTCJun 10, 01:50 UTC25m
2026-06-10 N7198N MCC → MCC Jun 10, 00:25 UTCJun 10, 00:35 UTC10m
2026-06-09 N7198N MCC → MCC Jun 9, 23:55 UTCJun 10, 00:20 UTC25m
2026-06-09 N7198N - Jun 9, 22:15 UTCJun 9, 23:10 UTC55m
2026-06-09 N7198N MCC → MCC Jun 9, 20:00 UTCJun 9, 20:55 UTC55m
2026-06-09 N7198N MCC → MCC Jun 9, 14:40 UTCJun 9, 15:35 UTC55m
2026-06-06 N7198N - Jun 6, 17:44 UTCJun 6, 18:29 UTC45m
2026-06-05 N7198N MCC → MCC Jun 5, 23:45 UTCJun 6, 00:25 UTC40m
2026-06-05 N7198N - Jun 5, 17:50 UTCJun 5, 18:05 UTC15m
2026-06-05 N7198N MCC → MCC Jun 5, 17:15 UTCJun 5, 17:45 UTC30m
2026-06-05 N7198N MCC → MCC Jun 5, 01:40 UTCJun 5, 02:50 UTC1h 10m
2026-06-04 N7198N MCC → MCC Jun 4, 22:10 UTCJun 4, 22:40 UTC30m
2026-06-04 N7198N MCC → MCC Jun 4, 18:15 UTCJun 4, 18:35 UTC20m
2026-06-03 N7198N MCC → MCC Jun 3, 23:05 UTCJun 3, 23:35 UTC30m
2026-06-03 N7198N MCC → MCC Jun 3, 04:10 UTCJun 3, 05:40 UTC1h 30m
2026-06-01 N7198N RDD → MCC Jun 1, 22:30 UTCJun 1, 23:55 UTC1h 25m
2026-05-19 N7198N RDD → RDD May 19, 20:55 UTCMay 19, 21:15 UTC20m
2026-05-19 N7198N RDD → RDD May 19, 19:10 UTCMay 19, 19:20 UTC10m

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 N7198N page for operator, model, and routing details .

Mode-S A9A0F9 frequently asked

What is Mode-S code A9A0F9?
A9A0F9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7198N.
Where is Mode-S A9A0F9 registered?
Mode-S code A9A0F9 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 A9A0F9 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9A0F9, octal 52320371, decimal 11,116,793.
What flights does A9A0F9 operate?
Mode-S A9A0F9 has broadcast 1 distinct callsign, including N7198N.