Apparatus

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sensors Mode-S transponder

A5760F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N451CK · LEARJET 45 · operated by KALITTA CHARTERS LLC

Hex
A5760F
Octal
51273017
Decimal
10,843,663
Country
US
Tail
N451CK
Type
LJ45
No current signal · last broadcast 2d ago
Flights observed
40
Distinct callsigns
6
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A5760F.

Country allocation

The ICAO 24-bit address A5760F 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 6 distinct

Callsign Airline Flights Last seen
KFS77 Kalitta Charters 13 2026-05-20
KFS194 Kalitta Charters 9 2026-05-04
KFS71 Kalitta Charters 7 2026-05-29
KFS17 Kalitta Charters 6 2026-05-31
KFS171 - 4 2026-04-13
KFS34 Kalitta Charters 1 2026-05-08

Recent flights last 40

DateFlightRouteTakeoffLandingDuration
2026-05-31 KFS17 SDF → MKE May 31, 17:15 UTCMay 31, 19:00 UTC1h 45m
2026-05-29 KFS71 ILM → FLL May 29, 22:25 UTCMay 29, 23:15 UTC50m
2026-05-29 KFS71 ILM → FLL May 29, 19:25 UTCMay 29, 21:35 UTC2h 10m
2026-05-29 KFS71 ILM → FLL May 29, 17:50 UTCMay 29, 18:40 UTC50m
2026-05-29 KFS71 ILM → FLL May 29, 15:50 UTCMay 29, 16:20 UTC30m
2026-05-23 KFS71 ILM → FLL May 23, 16:45 UTCMay 23, 18:00 UTC1h 15m
2026-05-23 KFS71 ILM → FLL May 23, 13:10 UTCMay 23, 15:35 UTC2h 25m
2026-05-23 KFS71 ILM → FLL May 23, 11:20 UTCMay 23, 12:00 UTC40m
2026-05-20 KFS77 PIA → YIP May 20, 23:05 UTCMay 21, 00:15 UTC1h 10m
2026-05-19 KFS77 PIA → YIP May 19, 14:55 UTCMay 19, 15:40 UTC45m
2026-05-19 KFS77 PIA → YIP May 19, 12:40 UTCMay 19, 13:45 UTC1h 5m
2026-05-19 KFS77 PIA → YIP May 19, 09:40 UTCMay 19, 10:20 UTC40m
2026-05-18 KFS77 PIA → YIP May 18, 05:30 UTCMay 18, 07:35 UTC2h 5m
2026-05-18 KFS77 PIA → YIP May 18, 02:05 UTCMay 18, 04:20 UTC2h 15m
2026-05-15 KFS77 PIA → YIP May 15, 18:20 UTCMay 15, 20:05 UTC1h 45m
2026-05-15 KFS77 PIA → YIP May 15, 10:10 UTCMay 15, 12:00 UTC1h 50m
2026-05-14 KFS77 PIA → YIP May 14, 03:15 UTCMay 14, 03:40 UTC25m
2026-05-13 KFS77 PIA → YIP May 13, 20:45 UTCMay 13, 21:10 UTC25m
2026-05-13 KFS77 PIA → YIP May 13, 03:35 UTCMay 13, 04:50 UTC1h 15m
2026-05-12 KFS77 PIA → YIP May 12, 19:30 UTCMay 12, 20:35 UTC1h 5m
2026-05-09 KFS77 PIA → YIP May 9, 19:35 UTCMay 9, 20:34 UTC1h 0m
2026-05-08 KFS34 RIC → YIP May 8, 19:55 UTCMay 8, 20:35 UTC40m
2026-05-08 KFS17 SDF → MKE May 8, 18:20 UTCMay 8, 19:20 UTC1h 0m
2026-05-07 KFS17 SDF → MKE May 7, 19:05 UTCMay 7, 20:20 UTC1h 15m
2026-05-07 KFS17 SDF → MKE May 7, 17:00 UTCMay 7, 17:40 UTC40m
2026-05-07 KFS17 SDF → MKE May 7, 15:00 UTCMay 7, 16:05 UTC1h 5m
2026-05-07 KFS17 SDF → MKE May 7, 12:50 UTCMay 7, 13:30 UTC40m
2026-05-04 KFS194 SLN → FLG May 4, 18:20 UTCMay 4, 18:45 UTC26m
2026-05-04 KFS194 SLN → FLG May 4, 14:25 UTCMay 4, 16:40 UTC2h 15m
2026-05-04 KFS194 SLN → FLG May 4, 11:55 UTCMay 4, 12:25 UTC30m
2026-05-01 KFS194 SLN → FLG May 1, 19:05 UTCMay 1, 20:30 UTC1h 25m
2026-05-01 KFS194 SLN → FLG May 1, 16:05 UTCMay 1, 17:20 UTC1h 15m
2026-04-28 KFS194 SLN → FLG Apr 28, 02:30 UTCApr 28, 05:15 UTC2h 45m
2026-04-27 KFS194 SLN → FLG Apr 27, 23:15 UTCApr 28, 00:40 UTC1h 25m
2026-04-27 KFS194 SLN → FLG Apr 27, 00:30 UTCApr 27, 02:10 UTC1h 40m
2026-04-26 KFS194 SLN → FLG Apr 26, 21:05 UTCApr 26, 22:25 UTC1h 20m
2026-04-13 KFS171 - Apr 13, 18:45 UTCApr 13, 19:20 UTC35m
2026-04-13 KFS171 - Apr 13, 16:15 UTCApr 13, 16:50 UTC35m
2026-04-13 KFS171 - Apr 13, 15:50 UTCApr 13, 16:50 UTC1h 0m
2026-04-13 KFS171 - Apr 13, 14:45 UTCApr 13, 16:15 UTC1h 30m

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 N451CK page for operator, model, and routing details .

Mode-S A5760F frequently asked

What is Mode-S code A5760F?
A5760F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N451CK.
Where is Mode-S A5760F registered?
Mode-S code A5760F 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 A5760F 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 A5760F, octal 51273017, decimal 10,843,663.
What flights does A5760F operate?
Mode-S A5760F has broadcast 6 distinct callsigns, including KFS77, KFS194, KFS71, KFS17, KFS171.