Apparatus

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sensors Mode-S transponder

AD73DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N966QS · operated by CUATRO LOGISTICS LLC, HERMES AIR LLC, MCPARLAND JEFFREY, ROBERTS JOHN, ROBERTS TAMARA, LOUISIANA MACHINERY COMPANY LLC

Hex
AD73DF
Octal
53271737
Decimal
11,367,391
Country
US
Tail
N966QS
Type
C68A
No current signal · last broadcast 2d ago
Flights observed
232
Distinct callsigns
2
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S AD73DF.

Country allocation

The ICAO 24-bit address AD73DF 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 2 distinct

Callsign Airline Flights Last seen
EJA966 - 222 2026-07-12
N966QS - 9 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 EJA966 - Jul 12, 22:00 UTCJul 12, 22:10 UTC10m
2026-07-12 EJA966 - Jul 12, 20:15 UTCJul 12, 21:05 UTC50m
2026-07-12 EJA966 - Jul 12, 18:01 UTCJul 12, 19:20 UTC1h 20m
2026-07-12 EJA966 - Jul 12, 16:20 UTCJul 12, 17:05 UTC45m
2026-07-11 EJA966 - Jul 11, 20:35 UTCJul 11, 21:50 UTC1h 15m
2026-07-11 EJA966 - Jul 11, 17:40 UTCJul 11, 19:30 UTC1h 50m
2026-07-10 EJA966 - Jul 10, 23:35 UTCJul 11, 00:15 UTC40m
2026-07-10 EJA966 - Jul 10, 19:30 UTCJul 10, 22:55 UTC3h 25m
2026-07-10 EJA966 - Jul 10, 17:10 UTCJul 10, 18:30 UTC1h 20m
2026-07-10 EJA966 - Jul 10, 14:15 UTCJul 10, 15:50 UTC1h 35m
2026-07-09 EJA966 SFO → VNY Jul 9, 19:50 UTCJul 10, 15:50 UTC20h 0m
2026-07-09 EJA966 - Jul 9, 18:00 UTCJul 9, 18:45 UTC45m
2026-07-09 EJA966 - Jul 9, 14:40 UTCJul 9, 15:55 UTC1h 15m
2026-07-08 EJA966 PHL → LUK Jul 8, 17:15 UTCJul 8, 19:00 UTC1h 45m
2026-07-07 EJA966 PHL → LUK Jul 7, 13:05 UTCJul 7, 14:15 UTC1h 10m
2026-07-06 EJA966 PHL → LUK Jul 6, 20:45 UTCJul 6, 21:55 UTC1h 10m
2026-07-06 EJA966 PHL → LUK Jul 6, 19:10 UTCJul 6, 19:55 UTC45m
2026-07-06 EJA966 PHL → LUK Jul 6, 12:40 UTCJul 6, 16:15 UTC3h 35m
2026-07-05 N966QS - Jul 5, 16:45 UTCJul 5, 20:45 UTC4h 0m
2026-07-05 N966QS - Jul 5, 12:40 UTCJul 5, 15:00 UTC2h 20m
2026-07-05 EJA966 PHL → LUK Jul 5, 01:00 UTCJul 5, 01:15 UTC15m
2026-07-04 EJA966 PHL → LUK Jul 4, 21:20 UTCJul 5, 00:10 UTC2h 50m
2026-07-04 EJA966 PHL → LUK Jul 4, 16:15 UTCJul 4, 19:20 UTC3h 5m
2026-07-03 EJA966 PHL → LUK Jul 3, 19:30 UTCJul 3, 20:00 UTC30m
2026-07-03 EJA966 PHL → LUK Jul 3, 16:55 UTCJul 3, 18:45 UTC1h 50m
2026-07-01 EJA966 PHL → LUK Jul 1, 22:10 UTCJul 2, 03:05 UTC4h 55m
2026-07-01 EJA966 PHL → LUK Jul 1, 18:20 UTCJul 1, 21:10 UTC2h 50m
2026-07-01 EJA966 PHL → LUK Jul 1, 14:10 UTCJul 1, 16:45 UTC2h 35m
2026-07-01 EJA966 PHL → LUK Jul 1, 12:35 UTCJul 1, 13:15 UTC40m
2026-06-26 EJA966 PHL → LUK Jun 26, 22:14 UTCJun 26, 22:29 UTC15m
2026-06-25 EJA966 PHL → LUK Jun 25, 12:35 UTCJun 25, 13:35 UTC1h 0m
2026-06-24 EJA966 PHL → LUK Jun 24, 21:50 UTCJun 24, 22:10 UTC20m
2026-06-23 EJA966 PHL → LUK Jun 23, 11:35 UTCJun 23, 12:55 UTC1h 20m
2026-06-23 EJA966 PHL → LUK Jun 23, 09:05 UTCJun 23, 09:59 UTC55m
2026-06-22 N966QS - Jun 22, 14:45 UTCJun 22, 16:54 UTC2h 10m
2026-06-22 N966QS - Jun 22, 11:54 UTCJun 22, 12:40 UTC45m
2026-06-21 N966QS GUA → TPA Jun 21, 16:59 UTCJun 21, 19:24 UTC2h 25m
2026-06-21 N966QS - Jun 21, 15:09 UTCJun 21, 15:19 UTC10m
2026-06-21 N966QS - Jun 21, 12:24 UTCJun 21, 14:30 UTC2h 5m
2026-06-20 EJA966 PHL → LUK Jun 20, 17:04 UTCJun 20, 17:44 UTC40m
2026-06-20 EJA966 PHL → LUK Jun 20, 14:59 UTCJun 20, 16:00 UTC1h 0m
2026-06-20 EJA966 PHL → LUK Jun 20, 12:45 UTCJun 20, 13:44 UTC1h 0m
2026-06-19 EJA966 PHL → LUK Jun 19, 21:19 UTCJun 19, 22:14 UTC55m
2026-06-19 EJA966 PHL → LUK Jun 19, 14:49 UTCJun 19, 18:54 UTC4h 5m
2026-06-18 EJA966 PHL → LUK Jun 18, 21:20 UTCJun 18, 23:00 UTC1h 40m
2026-06-18 EJA966 PHL → LUK Jun 18, 18:05 UTCJun 18, 19:25 UTC1h 20m
2026-06-18 EJA966 PHL → LUK Jun 18, 14:10 UTCJun 18, 16:40 UTC2h 30m
2026-06-17 EJA966 PHL → LUK Jun 17, 19:05 UTCJun 17, 22:55 UTC3h 50m
2026-06-17 EJA966 PHL → LUK Jun 17, 17:15 UTCJun 17, 17:25 UTC10m
2026-06-17 EJA966 PHL → LUK Jun 17, 14:25 UTCJun 17, 16:25 UTC2h 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 N966QS page for operator, model, and routing details .

Mode-S AD73DF frequently asked

What is Mode-S code AD73DF?
AD73DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N966QS.
Where is Mode-S AD73DF registered?
Mode-S code AD73DF 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 AD73DF broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD73DF, octal 53271737, decimal 11,367,391.
What flights does AD73DF operate?
Mode-S AD73DF has broadcast 2 distinct callsigns, including EJA966, N966QS.