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sensors Mode-S transponder

AA50A0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N764CK · BOEING 767-300 · operated by KALITTA AIR LLC

Hex
AA50A0
Octal
52450240
Decimal
11,161,760
Country
US
Tail
N764CK
Type
B763
No current signal · last broadcast Jul 26, 17:15 UTC
Flights observed
265
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 17:15 UTC

Last known position

Most recent position reported by Mode-S AA50A0.

Country allocation

The ICAO 24-bit address AA50A0 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 20 distinct

Callsign Airline Flights Last seen
ABX520 - 39 2026-07-07
ABX120 - 36 2026-07-08
ABX102 ABX Air 20 2026-07-24
ABX502 - 19 2026-07-23
ABX105 ABX Air 13 2026-06-02
ABX505 ABX Air 12 2026-06-01
ABX814 ABX Air 11 2026-06-04
ABX414 ABX Air 11 2026-06-05
ABX845 - 10 2026-07-02
ABX797 - 10 2026-07-17
ABX397 - 10 2026-07-18
ABX445 - 9 2026-07-03
ABX410 - 9 2026-07-26
ABX480 - 7 2026-07-08
ABX810 ABX Air 6 2026-07-26
ABX880 ABX Air 5 2026-04-22
ABX803 ABX Air 5 2026-04-20
ABX152 - 4 2026-07-09
ABX583 - 3 2026-06-27
ABX403 ABX Air 3 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ABX410 - Jul 26, 13:35 UTCJul 26, 17:15 UTC3h 40m
2026-07-26 ABX810 PHX → LAX Jul 26, 06:40 UTCJul 26, 10:40 UTC4h 0m
2026-07-25 ABX110 ATL → CVG Jul 25, 04:45 UTCJul 25, 05:40 UTC55m
2026-07-24 ABX510 CVG → ATL Jul 24, 10:40 UTCJul 24, 11:40 UTC1h 0m
2026-07-24 ABX102 DFW → CVG Jul 24, 03:50 UTCJul 24, 05:35 UTC1h 45m
2026-07-23 ABX502 CVG → DFW Jul 23, 11:25 UTCJul 23, 13:15 UTC1h 50m
2026-07-23 ABX102 DFW → CVG Jul 23, 03:35 UTCJul 23, 05:20 UTC1h 45m
2026-07-22 ABX502 - Jul 22, 11:15 UTCJul 22, 12:55 UTC1h 40m
2026-07-22 ABX102 DFW → CVG Jul 22, 03:55 UTCJul 22, 05:25 UTC1h 30m
2026-07-21 ABX502 - Jul 21, 11:10 UTCJul 21, 12:55 UTC1h 45m
2026-07-21 ABX102 DFW → CVG Jul 21, 04:05 UTCJul 21, 05:50 UTC1h 45m
2026-07-20 ABX502 - Jul 20, 07:40 UTCJul 20, 09:25 UTC1h 45m
2026-07-19 ABX410 - Jul 19, 13:35 UTCJul 19, 17:20 UTC3h 45m
2026-07-19 ABX810 - Jul 19, 06:40 UTCJul 19, 10:25 UTC3h 45m
2026-07-18 ABX397 ORD → CVG Jul 18, 05:15 UTCJul 18, 05:55 UTC40m
2026-07-17 ABX797 CVG → ORD Jul 17, 11:20 UTCJul 17, 12:10 UTC50m
2026-07-17 ABX397 - Jul 17, 05:04 UTCJul 17, 05:55 UTC50m
2026-07-16 ABX797 - Jul 16, 11:15 UTCJul 16, 12:09 UTC55m
2026-07-16 ABX102 DFW → CVG Jul 16, 03:50 UTCJul 16, 05:45 UTC1h 55m
2026-07-15 ABX502 - Jul 15, 11:15 UTCJul 15, 13:00 UTC1h 45m
2026-07-15 ABX397 ORD → CVG Jul 15, 04:55 UTCJul 15, 05:40 UTC45m
2026-07-14 ABX797 - Jul 14, 11:05 UTCJul 14, 11:50 UTC45m
2026-07-14 ABX102 - Jul 14, 04:10 UTCJul 14, 05:50 UTC1h 40m
2026-07-13 ABX502 - Jul 13, 07:55 UTCJul 13, 09:40 UTC1h 45m
2026-07-12 ABX410 - Jul 12, 14:20 UTCJul 12, 18:05 UTC3h 45m
2026-07-12 ABX810 - Jul 12, 06:10 UTCJul 12, 09:55 UTC3h 45m
2026-07-11 ABX102 DFW → CVG Jul 11, 03:40 UTCJul 11, 05:40 UTC2h 0m
2026-07-10 ABX502 - Jul 10, 11:15 UTCJul 10, 13:10 UTC1h 55m
2026-07-10 ABX102 DFW → CVG Jul 10, 03:50 UTCJul 10, 05:40 UTC1h 50m
2026-07-09 ABX502 - Jul 9, 12:30 UTCJul 9, 14:20 UTC1h 50m
2026-07-09 ABX152 - Jul 9, 03:35 UTCJul 9, 05:00 UTC1h 25m
2026-07-08 ABX480 - Jul 8, 22:25 UTCJul 8, 23:55 UTC1h 30m
2026-07-08 ABX120 - Jul 8, 03:25 UTCJul 8, 05:20 UTC1h 55m
2026-07-08 ABX120 - Jul 8, 01:40 UTCJul 8, 02:15 UTC35m
2026-07-07 ABX520 - Jul 7, 14:20 UTCJul 7, 15:00 UTC40m
2026-07-07 ABX520 - Jul 7, 11:25 UTCJul 7, 13:30 UTC2h 5m
2026-07-07 ABX397 ORD → CVG Jul 7, 05:05 UTCJul 7, 05:50 UTC45m
2026-07-06 ABX797 - Jul 6, 09:05 UTCJul 6, 10:00 UTC55m
2026-07-05 ABX322 DFW → CVG Jul 5, 16:05 UTCJul 5, 17:45 UTC1h 40m
2026-07-05 ABX321 - Jul 5, 11:35 UTCJul 5, 13:40 UTC2h 5m
2026-07-04 ABX397 ORD → CVG Jul 4, 04:55 UTCJul 4, 05:50 UTC55m
2026-07-03 ABX797 - Jul 3, 11:20 UTCJul 3, 12:15 UTC55m
2026-07-03 ABX445 - Jul 3, 03:30 UTCJul 3, 05:25 UTC1h 55m
2026-07-03 ABX445 - Jul 3, 01:45 UTCJul 3, 01:55 UTC10m
2026-07-02 ABX845 - Jul 2, 11:00 UTCJul 2, 14:50 UTC3h 50m
2026-07-02 ABX120 - Jul 2, 03:10 UTCJul 2, 05:10 UTC2h 0m
2026-07-02 ABX120 - Jul 2, 01:30 UTCJul 2, 02:00 UTC30m
2026-07-01 ABX520 - Jul 1, 14:50 UTCJul 1, 15:25 UTC35m
2026-07-01 ABX520 - Jul 1, 11:25 UTCJul 1, 13:30 UTC2h 5m
2026-07-01 ABX445 - Jul 1, 02:00 UTCJul 1, 05:35 UTC3h 35m

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 N764CK page for operator, model, and routing details .

Mode-S AA50A0 frequently asked

What is Mode-S code AA50A0?
AA50A0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N764CK.
Where is Mode-S AA50A0 registered?
Mode-S code AA50A0 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 AA50A0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA50A0, octal 52450240, decimal 11,161,760.
What flights does AA50A0 operate?
Mode-S AA50A0 has broadcast 20 distinct callsigns, including ABX520, ABX120, ABX102, ABX502, ABX105.