Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A59DA3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N461DF · BEECH 200 Super King Air · operated by STATE OF CALIFORNIA, DEPT OF FORESTRY & FIRE PROTECTION

Hex
A59DA3
Octal
51316643
Decimal
10,853,795
Country
US
Tail
N461DF
Type
BE20
No current signal · last broadcast 3d ago
Flights observed
43
Distinct callsigns
2
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A59DA3.

Country allocation

The ICAO 24-bit address A59DA3 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
CFR641 - 42 2026-06-10
N461DF - 1 2026-04-24

Recent flights last 43

DateFlightRouteTakeoffLandingDuration
2026-06-10 CFR641 - Jun 10, 17:45 UTCJun 10, 18:35 UTC50m
2026-06-10 CFR641 MCC → MCC Jun 10, 04:40 UTCJun 10, 04:55 UTC15m
2026-06-09 CFR641 MCC → MCC Jun 9, 20:40 UTCJun 9, 22:30 UTC1h 50m
2026-06-07 CFR641 MCC → MCC Jun 7, 18:00 UTCJun 7, 19:15 UTC1h 15m
2026-06-06 CFR641 MCC → MCC Jun 6, 18:04 UTCJun 6, 19:34 UTC1h 30m
2026-06-05 CFR641 MCC → MCC Jun 5, 21:05 UTCJun 5, 21:55 UTC50m
2026-06-04 CFR641 - Jun 4, 23:00 UTCJun 5, 00:50 UTC1h 50m
2026-06-04 CFR641 MCC → RIV Jun 4, 18:10 UTCJun 4, 20:55 UTC2h 45m
2026-06-03 CFR641 - Jun 3, 20:50 UTCJun 3, 22:30 UTC1h 40m
2026-06-03 CFR641 MCC → RIV Jun 3, 16:20 UTCJun 3, 19:05 UTC2h 45m
2026-06-02 CFR641 MCC → MCC Jun 2, 04:20 UTCJun 2, 04:55 UTC35m
2026-05-28 CFR641 MCC → MCC May 28, 22:35 UTCMay 29, 00:00 UTC1h 25m
2026-05-28 CFR641 MCC → MCC May 28, 20:20 UTCMay 28, 21:50 UTC1h 30m
2026-05-27 CFR641 - May 27, 22:15 UTCMay 28, 00:00 UTC1h 45m
2026-05-27 CFR641 MCC → MCC May 27, 20:50 UTCMay 27, 21:45 UTC55m
2026-05-25 CFR641 MCC → MCC May 25, 17:55 UTCMay 25, 19:35 UTC1h 40m
2026-05-22 CFR641 - May 22, 22:15 UTCMay 23, 00:15 UTC2h 0m
2026-05-22 CFR641 MCC → RIV May 22, 17:55 UTCMay 22, 19:55 UTC2h 0m
2026-05-21 CFR641 - May 21, 22:30 UTCMay 22, 01:15 UTC2h 45m
2026-05-21 CFR641 MCC → RIV May 21, 17:45 UTCMay 21, 20:10 UTC2h 25m
2026-05-20 CFR641 - May 20, 22:35 UTCMay 21, 01:15 UTC2h 40m
2026-05-20 CFR641 MCC → RIV May 20, 18:30 UTCMay 20, 21:30 UTC3h 0m
2026-05-19 CFR641 - May 19, 22:55 UTCMay 20, 01:55 UTC3h 0m
2026-05-19 CFR641 - May 19, 18:05 UTCMay 19, 21:30 UTC3h 25m
2026-05-19 CFR641 - May 19, 02:25 UTCMay 19, 03:05 UTC40m
2026-05-18 CFR641 - May 18, 22:20 UTCMay 19, 01:30 UTC3h 10m
2026-05-17 CFR641 MCC → MCC May 17, 21:25 UTCMay 18, 00:55 UTC3h 30m
2026-05-17 CFR641 - May 17, 02:35 UTCMay 17, 03:10 UTC35m
2026-05-16 CFR641 - May 16, 23:05 UTCMay 17, 01:30 UTC2h 25m
2026-05-16 CFR641 - May 16, 21:30 UTCMay 16, 22:10 UTC40m
2026-05-14 CFR641 MCC → MCC May 14, 22:30 UTCMay 14, 23:25 UTC55m
2026-05-14 CFR641 MCC → MCC May 14, 20:45 UTCMay 14, 21:50 UTC1h 5m
2026-05-14 CFR641 MCC → MCC May 14, 18:10 UTCMay 14, 19:00 UTC50m
2026-05-11 CFR641 MCC → MCC May 11, 20:55 UTCMay 11, 21:30 UTC35m
2026-05-08 CFR641 MCC → MCC May 8, 21:25 UTCMay 8, 22:10 UTC45m
2026-05-06 CFR641 - May 6, 23:10 UTCMay 6, 23:45 UTC35m
2026-05-06 CFR641 - May 6, 21:55 UTCMay 6, 22:35 UTC40m
2026-04-30 CFR641 MCC → MCC Apr 30, 16:35 UTCApr 30, 17:30 UTC55m
2026-04-29 CFR641 MCC → MCC Apr 29, 20:20 UTCApr 29, 21:10 UTC50m
2026-04-29 CFR641 MCC → MCC Apr 29, 16:45 UTCApr 29, 17:30 UTC45m
2026-04-28 CFR641 MCC → MCC Apr 28, 20:25 UTCApr 28, 21:00 UTC35m
2026-04-28 CFR641 MCC → MCC Apr 28, 17:10 UTCApr 28, 18:05 UTC55m
2026-04-24 N461DF - Apr 24, 19:35 UTCApr 24, 20:15 UTC40m

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 N461DF page for operator, model, and routing details .

Mode-S A59DA3 frequently asked

What is Mode-S code A59DA3?
A59DA3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N461DF.
Where is Mode-S A59DA3 registered?
Mode-S code A59DA3 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 A59DA3 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A59DA3, octal 51316643, decimal 10,853,795.
What flights does A59DA3 operate?
Mode-S A59DA3 has broadcast 2 distinct callsigns, including CFR641, N461DF.