Apparatus

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sensors Mode-S transponder

A451CB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N378CX · BOEING 767-300 · operated by CARGO AIRCRAFT MANAGEMENT INC

Hex
A451CB
Octal
51050713
Decimal
10,768,843
Country
US
Tail
N378CX
Type
B763
No current signal · last broadcast 28d ago
Flights observed
196
Distinct callsigns
20
Country
US
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S A451CB.

Country allocation

The ICAO 24-bit address A451CB 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
AJT8343 Amerijet International 8 2026-06-10
AJT4313 Amerijet International 7 2026-06-10
AJT4312 Amerijet International 7 2026-06-10
AJT8741 Amerijet International 6 2026-05-18
AJT8613 Amerijet International 6 2026-05-30
AJT852 Amerijet International 6 2026-06-12
AJT4613 - 5 2026-05-30
AJT4612 Amerijet International 5 2026-05-30
AJT4211 Amerijet International 5 2026-06-09
AJT8541 Amerijet International 4 2026-06-05
AJT8243 Amerijet International 4 2026-06-02
AJT439 Amerijet International 4 2026-05-20
AJT438 Amerijet International 4 2026-05-20
AJT4210 Amerijet International 4 2026-06-09
AJT8740 Amerijet International 3 2026-05-18
AJT8540 Amerijet International 3 2026-06-05
AJT853 Amerijet International 3 2026-06-12
AJT8441 Amerijet International 3 2026-06-11
AJT8341 - 3 2026-06-19
AJT8110 Amerijet International 3 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-19 AJT8341 - Jun 19, 22:19 UTCJun 20, 01:24 UTC3h 5m
2026-06-17 AJT8341 MIA → SJU Jun 17, 07:30 UTCJun 17, 07:40 UTC10m
2026-06-17 AJT8341 MIA → SJU Jun 17, 05:30 UTCJun 17, 05:55 UTC25m
2026-06-17 AJT720 SAL → MIA Jun 17, 00:55 UTCJun 17, 02:55 UTC2h 0m
2026-06-16 AJT721 MIA → SAL Jun 16, 17:15 UTCJun 16, 19:10 UTC1h 55m
2026-06-15 AJT815 MIA → GEO Jun 15, 05:15 UTCJun 15, 20:30 UTC15h 15m
2026-06-14 AJT774 SAP → MIA Jun 14, 09:45 UTCJun 14, 19:45 UTC10h 0m
2026-06-13 AJT462 LAX → MGA Jun 13, 18:00 UTCJun 13, 23:50 UTC5h 50m
2026-06-13 AJT4610 BOG → MIA Jun 13, 13:35 UTCJun 13, 14:05 UTC30m
2026-06-13 AJT4611 MIA → BOG Jun 13, 05:30 UTCJun 13, 05:45 UTC15m
2026-06-12 AJT8544 SJU → MIA Jun 12, 16:15 UTCJun 13, 01:00 UTC8h 45m
2026-06-12 AJT852 SDQ → MIA Jun 12, 11:00 UTCJun 12, 13:15 UTC2h 15m
2026-06-12 AJT852 SDQ → MIA Jun 12, 09:15 UTCJun 12, 09:30 UTC15m
2026-06-12 AJT853 MIA → SJU Jun 12, 05:15 UTCJun 12, 06:40 UTC1h 25m
2026-06-11 AJT8441 MIA → SJU Jun 11, 19:00 UTCJun 12, 01:30 UTC6h 31m
2026-06-11 AJT8441 MIA → SJU Jun 11, 17:20 UTCJun 11, 17:35 UTC15m
2026-06-11 AJT8441 MIA → SJU Jun 11, 15:30 UTCJun 11, 15:50 UTC20m
2026-06-11 AJT838 MGA → MIA Jun 11, 02:25 UTCJun 11, 13:20 UTC10h 55m
2026-06-10 AJT430 CCS → MIA Jun 10, 16:50 UTCJun 11, 00:45 UTC7h 55m
2026-06-10 AJT4312 BOG → MIA Jun 10, 11:50 UTCJun 10, 12:25 UTC35m
2026-06-10 AJT4312 BOG → MIA Jun 10, 09:15 UTCJun 10, 09:25 UTC10m
2026-06-10 AJT4313 SJU → BOG Jun 10, 07:20 UTCJun 10, 07:30 UTC10m
2026-06-10 AJT4313 SJU → BOG Jun 10, 05:10 UTCJun 10, 06:25 UTC1h 15m
2026-06-10 AJT8343 MIA → SDQ Jun 10, 03:45 UTCJun 10, 04:00 UTC15m
2026-06-10 AJT8343 MIA → SDQ Jun 10, 01:55 UTCJun 10, 02:15 UTC20m
2026-06-09 AJT720 SAL → MIA Jun 9, 20:30 UTCJun 9, 22:35 UTC2h 5m
2026-06-09 AJT721 MIA → SAL Jun 9, 17:05 UTCJun 9, 18:10 UTC1h 5m
2026-06-09 AJT4210 BOG → MIA Jun 9, 10:30 UTCJun 9, 13:40 UTC3h 10m
2026-06-09 AJT4211 MIA → BOG Jun 9, 07:45 UTCJun 9, 08:00 UTC15m
2026-06-09 AJT4211 MIA → BOG Jun 9, 05:00 UTCJun 9, 05:20 UTC20m
2026-06-08 AJT8742 STI → MIA Jun 8, 05:55 UTCJun 8, 11:50 UTC5h 55m
2026-06-08 AJT8743 SJU → STI Jun 8, 04:10 UTCJun 8, 04:25 UTC15m
2026-06-08 AJT8743 SJU → STI Jun 8, 02:15 UTCJun 8, 02:30 UTC15m
2026-06-07 AJT774 SAP → MIA Jun 7, 09:20 UTCJun 7, 14:15 UTC4h 55m
2026-06-06 AJT868 GCM → MIA Jun 6, 20:14 UTCJun 7, 05:25 UTC9h 10m
2026-06-06 AJT8544 SJU → MIA Jun 6, 07:55 UTCJun 6, 18:09 UTC10h 15m
2026-06-05 AJT8540 SJU → MIA Jun 5, 14:55 UTCJun 5, 17:10 UTC2h 15m
2026-06-05 AJT8540 SJU → MIA Jun 5, 12:40 UTCJun 5, 12:55 UTC15m
2026-06-05 AJT8541 MIA → SJU Jun 5, 08:30 UTCJun 5, 09:50 UTC1h 20m
2026-06-04 AJT8412 - Jun 4, 09:00 UTCJun 4, 18:35 UTC9h 35m
2026-06-03 AJT735 MIA → KIN Jun 3, 19:05 UTCJun 4, 03:40 UTC8h 35m
2026-06-03 AJT4312 BOG → MIA Jun 3, 13:50 UTCJun 3, 14:20 UTC30m
2026-06-03 AJT4312 BOG → MIA Jun 3, 11:15 UTCJun 3, 11:25 UTC10m
2026-06-03 AJT4313 SJU → BOG Jun 3, 07:55 UTCJun 3, 08:10 UTC15m
2026-06-03 AJT4313 SJU → BOG Jun 3, 05:50 UTCJun 3, 07:00 UTC1h 10m
2026-06-03 AJT8343 MIA → SDQ Jun 3, 04:15 UTCJun 3, 04:25 UTC10m
2026-06-03 AJT8343 MIA → SDQ Jun 3, 02:20 UTCJun 3, 02:50 UTC30m
2026-06-02 AJT826 POS → MIA Jun 2, 11:30 UTCJun 2, 21:35 UTC10h 5m
2026-06-02 AJT8242 SJU → MIA Jun 2, 07:00 UTCJun 2, 09:15 UTC2h 15m
2026-06-02 AJT8243 MIA → SJU Jun 2, 05:25 UTCJun 2, 05:35 UTC10m

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 N378CX page for operator, model, and routing details .

Mode-S A451CB frequently asked

What is Mode-S code A451CB?
A451CB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N378CX.
Where is Mode-S A451CB registered?
Mode-S code A451CB 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 A451CB broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A451CB, octal 51050713, decimal 10,768,843.
What flights does A451CB operate?
Mode-S A451CB has broadcast 20 distinct callsigns, including AJT8343, AJT4313, AJT4312, AJT8741, AJT8613.