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sensors Mode-S transponder

A959DA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N701SE · CESSNA 208 Caravan · operated by FLORIDA AIR CARGO INC

Hex
A959DA
Octal
52254732
Decimal
11,098,586
Country
US
Tail
N701SE
Type
C208
No current signal · last broadcast 2d ago
Flights observed
149
Distinct callsigns
2
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A959DA.

Country allocation

The ICAO 24-bit address A959DA 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
N701SE - 143 2026-07-15
FAS401 Freedom Airways 6 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 N701SE - Jul 15, 19:45 UTCJul 15, 20:20 UTC35m
2026-07-15 N701SE - Jul 15, 17:15 UTCJul 15, 17:35 UTC20m
2026-07-13 N701SE - Jul 13, 15:10 UTCJul 13, 15:35 UTC25m
2026-07-13 N701SE - Jul 13, 12:15 UTCJul 13, 12:40 UTC25m
2026-07-09 N701SE - Jul 9, 21:55 UTCJul 9, 22:20 UTC25m
2026-07-09 N701SE - Jul 9, 19:15 UTCJul 9, 19:40 UTC25m
2026-07-09 N701SE - Jul 9, 17:05 UTCJul 9, 17:35 UTC30m
2026-07-09 N701SE - Jul 9, 14:15 UTCJul 9, 14:45 UTC30m
2026-07-08 N701SE - Jul 8, 20:50 UTCJul 8, 21:25 UTC35m
2026-07-08 N701SE - Jul 8, 18:00 UTCJul 8, 18:20 UTC20m
2026-07-03 N701SE - Jul 3, 15:00 UTCJul 3, 15:20 UTC20m
2026-07-03 N701SE - Jul 3, 12:05 UTCJul 3, 12:35 UTC30m
2026-07-02 N701SE - Jul 2, 19:15 UTCJul 2, 19:35 UTC20m
2026-07-02 N701SE - Jul 2, 17:50 UTCJul 2, 18:00 UTC10m
2026-07-02 N701SE - Jul 2, 15:25 UTCJul 2, 15:40 UTC15m
2026-07-02 N701SE - Jul 2, 13:55 UTCJul 2, 14:05 UTC10m
2026-07-01 N701SE - Jul 1, 20:55 UTCJul 1, 21:20 UTC25m
2026-07-01 N701SE - Jul 1, 18:15 UTCJul 1, 18:40 UTC25m
2026-07-01 N701SE - Jul 1, 16:30 UTCJul 1, 17:05 UTC35m
2026-07-01 N701SE - Jul 1, 14:05 UTCJul 1, 14:25 UTC20m
2026-07-01 N701SE FLL → FXE Jul 1, 12:25 UTCJul 1, 12:35 UTC10m
2026-06-30 N701SE - Jun 30, 20:35 UTCJun 30, 21:00 UTC25m
2026-06-30 N701SE - Jun 30, 19:00 UTCJun 30, 19:10 UTC10m
2026-06-30 N701SE - Jun 30, 17:05 UTCJun 30, 17:15 UTC10m
2026-06-30 N701SE - Jun 30, 15:15 UTCJun 30, 15:40 UTC25m
2026-06-30 N701SE - Jun 30, 12:00 UTCJun 30, 12:25 UTC25m
2026-06-29 N701SE - Jun 29, 14:34 UTCJun 29, 15:09 UTC35m
2026-06-29 N701SE - Jun 29, 12:05 UTCJun 29, 12:34 UTC30m
2026-06-26 N701SE - Jun 26, 21:35 UTCJun 26, 22:05 UTC30m
2026-06-26 N701SE - Jun 26, 17:35 UTCJun 26, 17:59 UTC25m
2026-06-25 N701SE - Jun 25, 20:19 UTCJun 25, 20:45 UTC25m
2026-06-25 N701SE - Jun 25, 18:45 UTCJun 25, 18:59 UTC15m
2026-06-25 N701SE - Jun 25, 16:20 UTCJun 25, 16:50 UTC30m
2026-06-25 N701SE - Jun 25, 13:50 UTCJun 25, 14:14 UTC25m
2026-06-25 N701SE - Jun 25, 12:25 UTCJun 25, 12:35 UTC10m
2026-06-22 N701SE - Jun 22, 15:10 UTCJun 22, 15:35 UTC25m
2026-06-22 N701SE - Jun 22, 12:25 UTCJun 22, 12:49 UTC25m
2026-06-19 N701SE - Jun 19, 16:29 UTCJun 19, 17:04 UTC35m
2026-06-19 N701SE - Jun 19, 13:59 UTCJun 19, 14:29 UTC30m
2026-06-18 N701SE - Jun 18, 20:20 UTCJun 18, 20:55 UTC35m
2026-06-18 N701SE - Jun 18, 17:30 UTCJun 18, 17:55 UTC25m
2026-06-18 N701SE - Jun 18, 16:00 UTCJun 18, 16:30 UTC30m
2026-06-18 N701SE - Jun 18, 13:30 UTCJun 18, 13:55 UTC25m
2026-06-17 N701SE - Jun 17, 16:30 UTCJun 17, 17:10 UTC40m
2026-06-17 N701SE - Jun 17, 14:00 UTCJun 17, 14:25 UTC25m
2026-06-16 N701SE - Jun 16, 21:10 UTCJun 16, 21:50 UTC40m
2026-06-16 N701SE - Jun 16, 18:55 UTCJun 16, 19:25 UTC30m
2026-06-16 N701SE - Jun 16, 17:35 UTCJun 16, 18:05 UTC30m
2026-06-16 N701SE - Jun 16, 15:05 UTCJun 16, 15:35 UTC30m
2026-06-15 N701SE - Jun 15, 18:35 UTCJun 15, 19:05 UTC30m

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 N701SE page for operator, model, and routing details .

Mode-S A959DA frequently asked

What is Mode-S code A959DA?
A959DA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N701SE.
Where is Mode-S A959DA registered?
Mode-S code A959DA 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 A959DA 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 A959DA, octal 52254732, decimal 11,098,586.
What flights does A959DA operate?
Mode-S A959DA has broadcast 2 distinct callsigns, including N701SE, FAS401.