Apparatus

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sensors Mode-S transponder

A9DAF0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N734LQ · CESSNA 172 Skyhawk · operated by SNOHOMISH FLYING SERVICE INC

Hex
A9DAF0
Octal
52355360
Decimal
11,131,632
Country
US
Tail
N734LQ
Type
C172
No current signal · last broadcast 11h ago
Flights observed
265
Distinct callsigns
1
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S A9DAF0.

Country allocation

The ICAO 24-bit address A9DAF0 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
N734LQ - 265 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N734LQ - Jul 14, 01:15 UTCJul 14, 02:30 UTC1h 15m
2026-07-13 N734LQ - Jul 13, 23:05 UTCJul 13, 23:55 UTC50m
2026-07-13 N734LQ - Jul 13, 20:55 UTCJul 13, 21:30 UTC35m
2026-07-13 N734LQ - Jul 13, 18:55 UTCJul 13, 20:00 UTC1h 5m
2026-07-13 N734LQ - Jul 13, 01:45 UTCJul 13, 03:20 UTC1h 35m
2026-07-12 N734LQ - Jul 12, 22:10 UTCJul 12, 23:05 UTC55m
2026-07-12 N734LQ - Jul 12, 18:25 UTCJul 12, 19:25 UTC1h 0m
2026-07-12 N734LQ - Jul 12, 07:01 UTCJul 12, 07:15 UTC15m
2026-07-12 N734LQ - Jul 12, 05:50 UTCJul 12, 06:50 UTC1h 0m
2026-07-11 N734LQ - Jul 11, 23:50 UTCJul 12, 01:10 UTC1h 20m
2026-07-11 N734LQ - Jul 11, 22:30 UTCJul 11, 23:10 UTC40m
2026-07-11 N734LQ - Jul 11, 20:45 UTCJul 11, 21:40 UTC55m
2026-07-11 N734LQ - Jul 11, 17:10 UTCJul 11, 18:10 UTC1h 0m
2026-07-11 N734LQ - Jul 11, 01:50 UTCJul 11, 03:35 UTC1h 45m
2026-07-11 N734LQ - Jul 11, 00:00 UTCJul 11, 00:55 UTC55m
2026-07-10 N734LQ - Jul 10, 21:35 UTCJul 10, 22:25 UTC50m
2026-07-10 N734LQ - Jul 10, 01:05 UTCJul 10, 01:55 UTC50m
2026-07-09 N734LQ - Jul 9, 18:05 UTCJul 9, 19:10 UTC1h 5m
2026-07-09 N734LQ - Jul 9, 15:00 UTCJul 9, 16:10 UTC1h 10m
2026-07-09 N734LQ - Jul 9, 01:20 UTCJul 9, 02:15 UTC55m
2026-07-08 N734LQ - Jul 8, 17:35 UTCJul 8, 19:50 UTC2h 15m
2026-07-08 N734LQ - Jul 8, 15:15 UTCJul 8, 16:20 UTC1h 5m
2026-07-08 N734LQ - Jul 8, 02:00 UTCJul 8, 02:45 UTC45m
2026-07-07 N734LQ - Jul 7, 22:10 UTCJul 7, 23:10 UTC1h 0m
2026-07-07 N734LQ - Jul 7, 20:00 UTCJul 7, 21:10 UTC1h 10m
2026-07-07 N734LQ - Jul 7, 18:35 UTCJul 7, 19:15 UTC40m
2026-07-07 N734LQ - Jul 7, 01:35 UTCJul 7, 02:35 UTC1h 0m
2026-07-06 N734LQ - Jul 6, 20:30 UTCJul 6, 21:25 UTC55m
2026-07-05 N734LQ - Jul 5, 20:10 UTCJul 5, 21:15 UTC1h 5m
2026-07-05 N734LQ - Jul 5, 17:40 UTCJul 5, 18:30 UTC50m
2026-07-03 N734LQ - Jul 3, 22:25 UTCJul 3, 23:45 UTC1h 20m
2026-07-03 N734LQ - Jul 3, 17:55 UTCJul 3, 18:45 UTC50m
2026-07-03 N734LQ - Jul 3, 02:20 UTCJul 3, 04:05 UTC1h 45m
2026-07-03 N734LQ - Jul 3, 01:40 UTCJul 3, 02:10 UTC30m
2026-07-01 N734LQ - Jul 1, 00:05 UTCJul 1, 01:05 UTC1h 0m
2026-06-30 N734LQ - Jun 30, 21:25 UTCJun 30, 22:25 UTC1h 0m
2026-06-30 N734LQ - Jun 30, 01:30 UTCJun 30, 03:20 UTC1h 50m
2026-06-29 N734LQ - Jun 29, 02:54 UTCJun 29, 03:25 UTC30m
2026-06-29 N734LQ - Jun 29, 01:14 UTCJun 29, 01:39 UTC25m
2026-06-27 N734LQ - Jun 27, 20:29 UTCJun 27, 21:19 UTC50m
2026-06-26 N734LQ - Jun 26, 02:14 UTCJun 26, 03:24 UTC1h 10m
2026-06-25 N734LQ - Jun 25, 21:50 UTCJun 25, 23:14 UTC1h 25m
2026-06-25 N734LQ - Jun 25, 19:39 UTCJun 25, 20:59 UTC1h 20m
2026-06-24 N734LQ - Jun 24, 22:14 UTCJun 24, 23:29 UTC1h 15m
2026-06-23 N734LQ - Jun 23, 17:59 UTCJun 23, 20:10 UTC2h 10m
2026-06-23 N734LQ - Jun 23, 16:14 UTCJun 23, 16:35 UTC20m
2026-06-23 N734LQ - Jun 23, 15:04 UTCJun 23, 15:24 UTC20m
2026-06-23 N734LQ - Jun 23, 02:40 UTCJun 23, 03:34 UTC55m
2026-06-23 N734LQ - Jun 23, 00:00 UTCJun 23, 00:54 UTC55m
2026-06-22 N734LQ - Jun 22, 21:40 UTCJun 22, 22:40 UTC1h 0m

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 N734LQ page for operator, model, and routing details .

Mode-S A9DAF0 frequently asked

What is Mode-S code A9DAF0?
A9DAF0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N734LQ.
Where is Mode-S A9DAF0 registered?
Mode-S code A9DAF0 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 A9DAF0 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9DAF0, octal 52355360, decimal 11,131,632.
What flights does A9DAF0 operate?
Mode-S A9DAF0 has broadcast 1 distinct callsign, including N734LQ.