Apparatus

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sensors Mode-S transponder

AA6943

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N770CK · BOEING 777-300ER · operated by BANK OF UTAH TRUSTEE

Hex
AA6943
Octal
52464503
Decimal
11,168,067
Country
US
Tail
N770CK
Type
B77W
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
211
Distinct callsigns
15
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S AA6943.

Country allocation

The ICAO 24-bit address AA6943 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 15 distinct

Callsign Airline Flights Last seen
CKS5960 Kalitta Air 45 2026-07-25
CKS5965 Kalitta Air 32 2026-07-25
CKS524 Kalitta Air 23 2026-05-28
CKS523 Kalitta Air 20 2026-05-29
CKS5928 Kalitta Air 17 2026-07-26
CKS526 Kalitta Air 16 2026-05-25
CKS551 Kalitta Air 10 2026-04-24
CKS935 Kalitta Air 9 2026-07-26
CKS916 Kalitta Air 8 2026-07-21
CKS901 Kalitta Air 8 2026-07-20
CKS5915 Kalitta Air 8 2026-07-25
CKS550 Kalitta Air 8 2026-04-23
CKS9770 Kalitta Air 3 2026-04-21
CKS9907 Kalitta Air 2 2026-05-29
CKS616 Kalitta Air 2 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CKS5928 SDF → ONT Jul 26, 21:20 UTCJul 26, 22:45 UTC1h 25m
2026-07-26 CKS935 ANC → ORD Jul 26, 09:15 UTCJul 26, 12:40 UTC3h 25m
2026-07-25 CKS5928 SDF → ONT Jul 25, 22:00 UTCJul 26, 01:25 UTC3h 25m
2026-07-25 CKS5915 ONT → SDF Jul 25, 14:05 UTCJul 25, 17:40 UTC3h 35m
2026-07-25 CKS5965 HNL → ONT Jul 25, 05:45 UTCJul 25, 10:20 UTC4h 35m
2026-07-25 CKS5960 ONT → HNL Jul 25, 02:45 UTCJul 25, 03:00 UTC15m
2026-07-24 CKS5960 ONT → HNL Jul 24, 21:30 UTCJul 24, 22:35 UTC1h 5m
2026-07-24 CKS5965 HNL → ONT Jul 24, 06:00 UTCJul 24, 10:35 UTC4h 35m
2026-07-24 CKS5960 ONT → HNL Jul 24, 02:10 UTCJul 24, 02:30 UTC20m
2026-07-23 CKS5960 ONT → HNL Jul 23, 21:20 UTCJul 23, 21:55 UTC35m
2026-07-23 CKS5965 HNL → ONT Jul 23, 06:00 UTCJul 23, 10:35 UTC4h 35m
2026-07-22 CKS5960 ONT → HNL Jul 22, 21:45 UTCJul 23, 03:05 UTC5h 20m
2026-07-21 CKS5960 ONT → HNL Jul 21, 23:10 UTCJul 22, 04:30 UTC5h 20m
2026-07-21 CKS916 YYZ → ANC Jul 21, 07:25 UTCJul 21, 10:45 UTC3h 20m
2026-07-20 CKS901 ONT → SDF Jul 20, 23:45 UTCJul 21, 03:20 UTC3h 35m
2026-07-19 CKS5928 SDF → ONT Jul 19, 21:20 UTCJul 20, 00:50 UTC3h 30m
2026-07-19 CKS935 ANC → ORD Jul 19, 09:30 UTCJul 19, 13:05 UTC3h 35m
2026-07-18 CKS5928 - Jul 18, 22:10 UTCJul 19, 01:40 UTC3h 30m
2026-07-18 CKS5915 - Jul 18, 14:45 UTCJul 18, 18:15 UTC3h 30m
2026-07-18 CKS5965 - Jul 18, 05:50 UTCJul 18, 10:35 UTC4h 45m
2026-07-17 CKS5960 - Jul 17, 21:15 UTCJul 18, 02:29 UTC5h 15m
2026-07-17 CKS5965 - Jul 17, 05:50 UTCJul 17, 10:35 UTC4h 45m
2026-07-17 CKS5960 - Jul 17, 02:50 UTCJul 17, 03:05 UTC15m
2026-07-16 CKS5960 - Jul 16, 21:50 UTCJul 16, 22:55 UTC1h 5m
2026-07-16 CKS5965 - Jul 16, 05:40 UTCJul 16, 10:20 UTC4h 40m
2026-07-15 CKS5960 - Jul 15, 21:35 UTCJul 16, 02:45 UTC5h 10m
2026-07-15 CKS5965 - Jul 15, 05:55 UTCJul 15, 10:35 UTC4h 40m
2026-07-14 CKS5960 - Jul 14, 21:45 UTCJul 15, 03:00 UTC5h 14m
2026-07-14 CKS916 - Jul 14, 07:40 UTCJul 14, 10:55 UTC3h 15m
2026-07-13 CKS901 - Jul 13, 23:45 UTCJul 14, 03:25 UTC3h 40m
2026-07-12 CKS5928 - Jul 12, 22:10 UTCJul 13, 01:30 UTC3h 20m
2026-07-12 CKS935 - Jul 12, 09:20 UTCJul 12, 12:50 UTC3h 30m
2026-07-11 CKS5928 - Jul 11, 22:05 UTCJul 12, 01:35 UTC3h 30m
2026-07-11 CKS5915 - Jul 11, 13:50 UTCJul 11, 17:10 UTC3h 20m
2026-07-11 CKS5965 - Jul 11, 06:01 UTCJul 11, 10:35 UTC4h 35m
2026-07-11 CKS5960 - Jul 11, 02:30 UTCJul 11, 02:55 UTC25m
2026-07-10 CKS5960 - Jul 10, 21:45 UTCJul 10, 22:20 UTC35m
2026-07-10 CKS5965 - Jul 10, 05:35 UTCJul 10, 10:20 UTC4h 45m
2026-07-09 CKS5960 - Jul 9, 21:35 UTCJul 10, 02:50 UTC5h 15m
2026-07-09 CKS5965 - Jul 9, 06:15 UTCJul 9, 10:50 UTC4h 35m
2026-07-09 CKS5960 - Jul 9, 03:25 UTCJul 9, 03:50 UTC25m
2026-07-08 CKS5960 - Jul 8, 22:35 UTCJul 8, 23:10 UTC35m
2026-07-08 CKS5965 - Jul 8, 06:10 UTCJul 8, 10:50 UTC4h 40m
2026-07-08 CKS5960 - Jul 8, 02:25 UTCJul 8, 02:45 UTC20m
2026-07-07 CKS5960 - Jul 7, 21:40 UTCJul 7, 22:15 UTC35m
2026-07-07 CKS916 - Jul 7, 06:50 UTCJul 7, 10:15 UTC3h 25m
2026-07-06 CKS901 ONT → SDF Jul 6, 23:40 UTCJul 7, 03:05 UTC3h 25m
2026-07-05 CKS5928 - Jul 5, 21:20 UTCJul 6, 00:45 UTC3h 25m
2026-07-05 CKS935 - Jul 5, 09:25 UTCJul 5, 12:45 UTC3h 20m
2026-07-04 CKS5965 - Jul 4, 06:55 UTCJul 4, 11:25 UTC4h 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 N770CK page for operator, model, and routing details .

Mode-S AA6943 frequently asked

What is Mode-S code AA6943?
AA6943 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N770CK.
Where is Mode-S AA6943 registered?
Mode-S code AA6943 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 AA6943 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA6943, octal 52464503, decimal 11,168,067.
What flights does AA6943 operate?
Mode-S AA6943 has broadcast 15 distinct callsigns, including CKS5960, CKS5965, CKS524, CKS523, CKS5928.