Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A1B6F9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2098Y · CESSNA 172 Skyhawk · operated by LEVEL ALTITUDE LLC

Hex
A1B6F9
Octal
50333371
Decimal
10,598,137
Country
US
Tail
N2098Y
Type
C172
No current signal · last broadcast 13h ago
Flights observed
142
Distinct callsigns
1
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A1B6F9.

Country allocation

The ICAO 24-bit address A1B6F9 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
N2098Y - 142 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N2098Y - Jul 14, 00:25 UTCJul 14, 00:50 UTC25m
2026-07-13 N2098Y - Jul 13, 22:45 UTCJul 13, 23:35 UTC50m
2026-07-13 N2098Y - Jul 13, 13:30 UTCJul 13, 14:30 UTC1h 0m
2026-07-12 N2098Y - Jul 12, 15:40 UTCJul 12, 16:25 UTC45m
2026-07-12 N2098Y - Jul 12, 14:40 UTCJul 12, 14:55 UTC15m
2026-07-12 N2098Y - Jul 12, 13:10 UTCJul 12, 13:30 UTC20m
2026-07-11 N2098Y - Jul 11, 22:05 UTCJul 11, 23:20 UTC1h 15m
2026-07-11 N2098Y - Jul 11, 18:25 UTCJul 11, 19:10 UTC45m
2026-07-11 N2098Y - Jul 11, 16:40 UTCJul 11, 16:55 UTC15m
2026-07-11 N2098Y - Jul 11, 04:10 UTCJul 11, 05:45 UTC1h 35m
2026-07-11 N2098Y - Jul 11, 03:01 UTCJul 11, 03:30 UTC30m
2026-07-09 N2098Y - Jul 9, 22:45 UTCJul 10, 00:05 UTC1h 20m
2026-07-08 N2098Y - Jul 8, 21:35 UTCJul 8, 22:50 UTC1h 15m
2026-07-07 N2098Y - Jul 7, 23:00 UTCJul 8, 00:30 UTC1h 30m
2026-07-07 N2098Y - Jul 7, 22:00 UTCJul 7, 22:25 UTC25m
2026-07-07 N2098Y - Jul 7, 14:05 UTCJul 7, 15:20 UTC1h 15m
2026-07-06 N2098Y - Jul 6, 22:10 UTCJul 6, 22:20 UTC10m
2026-07-06 N2098Y - Jul 6, 21:10 UTCJul 6, 21:35 UTC25m
2026-07-05 N2098Y - Jul 5, 22:00 UTCJul 5, 23:00 UTC1h 0m
2026-07-05 N2098Y - Jul 5, 20:05 UTCJul 5, 21:30 UTC1h 25m
2026-07-05 N2098Y - Jul 5, 18:45 UTCJul 5, 19:15 UTC30m
2026-07-05 N2098Y - Jul 5, 15:30 UTCJul 5, 16:15 UTC45m
2026-07-05 N2098Y - Jul 5, 14:00 UTCJul 5, 14:20 UTC20m
2026-07-04 N2098Y - Jul 4, 17:30 UTCJul 4, 17:55 UTC25m
2026-07-03 N2098Y - Jul 3, 17:20 UTCJul 3, 17:40 UTC20m
2026-07-03 N2098Y - Jul 3, 15:30 UTCJul 3, 16:15 UTC45m
2026-07-03 N2098Y - Jul 3, 13:15 UTCJul 3, 14:35 UTC1h 20m
2026-07-03 N2098Y - Jul 3, 00:10 UTCJul 3, 01:05 UTC55m
2026-07-02 N2098Y - Jul 2, 22:00 UTCJul 2, 23:15 UTC1h 15m
2026-07-01 N2098Y - Jul 1, 23:50 UTCJul 2, 00:35 UTC45m
2026-07-01 N2098Y - Jul 1, 22:15 UTCJul 1, 22:45 UTC30m
2026-06-30 N2098Y - Jun 30, 22:10 UTCJun 30, 23:45 UTC1h 35m
2026-06-28 N2098Y - Jun 28, 16:49 UTCJun 28, 17:19 UTC30m
2026-06-28 N2098Y - Jun 28, 13:14 UTCJun 28, 14:54 UTC1h 40m
2026-06-26 N2098Y - Jun 26, 00:30 UTCJun 26, 01:24 UTC55m
2026-06-25 N2098Y - Jun 25, 21:55 UTCJun 25, 23:09 UTC1h 15m
2026-06-24 N2098Y - Jun 24, 21:50 UTCJun 24, 23:00 UTC1h 10m
2026-06-24 N2098Y - Jun 24, 16:05 UTCJun 24, 17:25 UTC1h 20m
2026-06-23 N2098Y - Jun 23, 13:34 UTCJun 23, 14:10 UTC35m
2026-06-22 N2098Y - Jun 22, 13:25 UTCJun 22, 14:34 UTC1h 10m
2026-06-20 N2098Y - Jun 20, 15:39 UTCJun 20, 16:29 UTC50m
2026-06-20 N2098Y - Jun 20, 13:19 UTCJun 20, 14:44 UTC1h 25m
2026-06-19 N2098Y - Jun 19, 17:24 UTCJun 19, 17:49 UTC25m
2026-06-19 N2098Y - Jun 19, 13:59 UTCJun 19, 15:19 UTC1h 20m
2026-06-18 N2098Y - Jun 18, 22:10 UTCJun 18, 23:25 UTC1h 15m
2026-06-18 N2098Y - Jun 18, 18:50 UTCJun 18, 19:05 UTC15m
2026-06-18 N2098Y - Jun 18, 17:30 UTCJun 18, 17:55 UTC25m
2026-06-18 N2098Y - Jun 18, 15:05 UTCJun 18, 16:25 UTC1h 20m
2026-06-17 N2098Y - Jun 17, 22:00 UTCJun 17, 22:50 UTC50m
2026-06-17 N2098Y - Jun 17, 00:05 UTCJun 17, 01:10 UTC1h 5m

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 N2098Y page for operator, model, and routing details .

Mode-S A1B6F9 frequently asked

What is Mode-S code A1B6F9?
A1B6F9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2098Y.
Where is Mode-S A1B6F9 registered?
Mode-S code A1B6F9 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 A1B6F9 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1B6F9, octal 50333371, decimal 10,598,137.
What flights does A1B6F9 operate?
Mode-S A1B6F9 has broadcast 1 distinct callsign, including N2098Y.