Apparatus

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sensors Mode-S transponder

AA77F9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N774AX · BOEING 767-200 · operated by CARGO AIRCRAFT MANAGEMENT INC

Hex
AA77F9
Octal
52473771
Decimal
11,171,833
Country
US
Tail
N774AX
Type
B762
No current signal · last broadcast 11d ago
Flights observed
133
Distinct callsigns
20
Country
US
Last broadcast
11d ago

Last known position

Most recent position reported by Mode-S AA77F9.

Country allocation

The ICAO 24-bit address AA77F9 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
ABX5205 ABX Air 15 2026-04-23
ABX5204 ABX Air 15 2026-04-23
ABX5202 ABX Air 14 2026-04-24
ABX5201 ABX Air 14 2026-04-24
ABX841 - 9 2026-06-23
ABX814 ABX Air 9 2026-05-08
ABX441 - 9 2026-06-24
ABX414 ABX Air 7 2026-05-09
ABX505 ABX Air 6 2026-06-05
ABX105 ABX Air 6 2026-06-06
ABX5217 - 4 2026-06-28
ABX405 ABX Air 3 2026-05-02
ABX2043 - 3 2026-06-16
ABX5232 - 2 2026-06-28
ABX2042 - 2 2026-06-15
ABX2029 ABX Air 2 2026-05-19
ABX805 ABX Air 1 2026-04-30
ABX797 ABX Air 1 2026-04-27
ABX585 ABX Air 1 2026-05-11
ABX5197 ABX Air 1 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-02 ABX092 CVG → MIA Jul 2, 14:20 UTCJul 2, 14:45 UTC25m
2026-06-28 ABX5217 - Jun 28, 22:15 UTCJun 29, 00:44 UTC2h 30m
2026-06-28 ABX5217 - Jun 28, 18:34 UTCJun 28, 20:34 UTC2h 0m
2026-06-28 ABX5217 - Jun 28, 17:19 UTCJun 28, 17:44 UTC25m
2026-06-28 ABX5232 - Jun 28, 04:50 UTCJun 28, 08:39 UTC3h 50m
2026-06-25 ABX5217 LAS → CVG Jun 25, 15:50 UTCJun 25, 18:59 UTC3h 10m
2026-06-25 ABX5232 - Jun 25, 05:29 UTCJun 25, 09:14 UTC3h 45m
2026-06-24 ABX441 - Jun 24, 03:35 UTCJun 24, 05:05 UTC1h 30m
2026-06-23 ABX841 - Jun 23, 09:24 UTCJun 23, 10:39 UTC1h 15m
2026-06-19 ABX441 - Jun 19, 03:05 UTCJun 19, 04:34 UTC1h 30m
2026-06-18 ABX841 - Jun 18, 11:30 UTCJun 18, 12:45 UTC1h 15m
2026-06-17 ABX441 - Jun 17, 03:00 UTCJun 17, 04:40 UTC1h 40m
2026-06-16 ABX841 - Jun 16, 09:25 UTCJun 16, 10:40 UTC1h 15m
2026-06-16 ABX2043 - Jun 16, 02:45 UTCJun 16, 04:20 UTC1h 35m
2026-06-16 ABX2043 - Jun 16, 00:35 UTCJun 16, 01:15 UTC40m
2026-06-15 ABX2042 - Jun 15, 09:30 UTCJun 15, 10:05 UTC35m
2026-06-15 ABX2042 - Jun 15, 06:30 UTCJun 15, 08:00 UTC1h 30m
2026-06-13 ABX441 EWR → CVG Jun 13, 03:05 UTCJun 13, 04:40 UTC1h 35m
2026-06-12 ABX841 - Jun 12, 10:05 UTCJun 12, 11:45 UTC1h 40m
2026-06-12 ABX2044 - Jun 12, 03:10 UTCJun 12, 04:50 UTC1h 40m
2026-06-11 ABX2043 - Jun 11, 10:45 UTCJun 11, 12:15 UTC1h 30m
2026-06-06 ABX105 PHX → CVG Jun 6, 03:40 UTCJun 6, 06:50 UTC3h 10m
2026-06-06 ABX105 PHX → CVG Jun 6, 00:45 UTCJun 6, 01:45 UTC1h 0m
2026-06-05 ABX505 CVG → PHX Jun 5, 15:50 UTCJun 5, 16:45 UTC55m
2026-06-05 ABX505 CVG → PHX Jun 5, 10:45 UTCJun 5, 14:05 UTC3h 20m
2026-06-05 ABX105 PHX → CVG Jun 5, 04:20 UTCJun 5, 07:20 UTC3h 0m
2026-06-05 ABX105 PHX → CVG Jun 5, 00:55 UTCJun 5, 02:00 UTC1h 5m
2026-06-04 ABX505 CVG → PHX Jun 4, 15:40 UTCJun 4, 16:35 UTC55m
2026-06-04 ABX505 CVG → PHX Jun 4, 10:55 UTCJun 4, 14:05 UTC3h 10m
2026-05-30 ABX2020 CVG → JFK May 30, 06:05 UTCMay 30, 09:50 UTC3h 45m
2026-05-29 ABX2033 - May 29, 12:50 UTCMay 29, 16:50 UTC4h 0m
2026-05-26 ABX5197 SMF → CVG May 26, 16:35 UTCMay 26, 20:29 UTC3h 55m
2026-05-26 ABX5195 CVG → SMF May 26, 05:15 UTCMay 26, 09:25 UTC4h 10m
2026-05-20 ABX2028 CVG → MSP May 20, 02:05 UTCMay 20, 04:35 UTC2h 30m
2026-05-19 ABX2029 YHM → CVG May 19, 10:55 UTCMay 19, 13:30 UTC2h 35m
2026-05-16 ABX441 EWR → CVG May 16, 03:35 UTCMay 16, 05:05 UTC1h 30m
2026-05-15 ABX841 CVG → EWR May 15, 09:25 UTCMay 15, 10:55 UTC1h 30m
2026-05-15 ABX105 PHX → CVG May 15, 04:10 UTCMay 15, 07:10 UTC3h 0m
2026-05-15 ABX105 PHX → CVG May 15, 01:25 UTCMay 15, 02:25 UTC1h 0m
2026-05-14 ABX505 CVG → PHX May 14, 16:20 UTCMay 14, 17:20 UTC1h 0m
2026-05-14 ABX505 CVG → PHX May 14, 11:30 UTCMay 14, 15:01 UTC3h 30m
2026-05-14 ABX441 EWR → CVG May 14, 03:30 UTCMay 14, 05:00 UTC1h 30m
2026-05-13 ABX841 CVG → EWR May 13, 09:20 UTCMay 13, 10:40 UTC1h 20m
2026-05-13 ABX441 EWR → CVG May 13, 03:00 UTCMay 13, 04:30 UTC1h 30m
2026-05-12 ABX841 CVG → EWR May 12, 09:15 UTCMay 12, 10:45 UTC1h 30m
2026-05-12 ABX185 MSP → CVG May 12, 02:45 UTCMay 12, 04:05 UTC1h 20m
2026-05-11 ABX585 CVG → MSP May 11, 06:25 UTCMay 11, 07:50 UTC1h 25m
2026-05-09 ABX414 SEA → CVG May 9, 03:40 UTCMay 9, 07:20 UTC3h 40m
2026-05-09 ABX414 SEA → CVG May 9, 01:25 UTCMay 9, 01:55 UTC30m
2026-05-08 ABX814 SEA → PDX May 8, 17:10 UTCMay 8, 17:30 UTC20m

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 N774AX page for operator, model, and routing details .

Mode-S AA77F9 frequently asked

What is Mode-S code AA77F9?
AA77F9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N774AX.
Where is Mode-S AA77F9 registered?
Mode-S code AA77F9 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 AA77F9 broadcasting right now?
No active broadcast right now. Last signal was 11d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA77F9, octal 52473771, decimal 11,171,833.
What flights does AA77F9 operate?
Mode-S AA77F9 has broadcast 20 distinct callsigns, including ABX5205, ABX5204, ABX5202, ABX5201, ABX841.