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sensors Mode-S transponder

AABC3A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N791FA · operated by ALF IX LLC

Hex
AABC3A
Octal
52536072
Decimal
11,189,306
Country
US
Tail
N791FA
Type
C172
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
302
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S AABC3A.

Country allocation

The ICAO 24-bit address AABC3A 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 1 distinct

Callsign Airline Flights Last seen
N791FA - 302 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N791FA BFL → BFL Jul 26, 20:50 UTCJul 26, 22:05 UTC1h 15m
2026-07-26 N791FA BFL → BFL Jul 26, 18:10 UTCJul 26, 19:45 UTC1h 35m
2026-07-26 N791FA BFL → BFL Jul 26, 16:00 UTCJul 26, 17:15 UTC1h 15m
2026-07-26 N791FA BFL → BFL Jul 26, 01:15 UTCJul 26, 02:25 UTC1h 10m
2026-07-25 N791FA BFL → BFL Jul 25, 22:55 UTCJul 25, 23:15 UTC20m
2026-07-25 N791FA BFL → BFL Jul 25, 20:30 UTCJul 25, 21:50 UTC1h 20m
2026-07-25 N791FA BFL → BFL Jul 25, 04:05 UTCJul 25, 05:15 UTC1h 10m
2026-07-25 N791FA BFL → BFL Jul 25, 01:35 UTCJul 25, 02:20 UTC45m
2026-07-24 N791FA BFL → BFL Jul 24, 15:25 UTCJul 24, 16:50 UTC1h 25m
2026-07-24 N791FA BFL → BFL Jul 24, 03:30 UTCJul 24, 04:35 UTC1h 5m
2026-07-24 N791FA BFL → BFL Jul 24, 00:55 UTCJul 24, 01:35 UTC40m
2026-07-23 N791FA BFL → BFL Jul 23, 23:00 UTCJul 23, 23:20 UTC20m
2026-07-23 N791FA - Jul 23, 15:35 UTCJul 23, 15:50 UTC15m
2026-07-23 N791FA BFL → BFL Jul 23, 14:25 UTCJul 23, 15:25 UTC1h 0m
2026-07-23 N791FA BFL → BFL Jul 23, 03:55 UTCJul 23, 06:35 UTC2h 40m
2026-07-22 N791FA BFL → BFL Jul 22, 16:45 UTCJul 22, 19:40 UTC2h 55m
2026-07-22 N791FA BFL → BFL Jul 22, 14:05 UTCJul 22, 15:30 UTC1h 25m
2026-07-22 N791FA BFL → BFL Jul 22, 03:25 UTCJul 22, 04:25 UTC1h 0m
2026-07-22 N791FA - Jul 22, 00:30 UTCJul 22, 01:05 UTC35m
2026-07-21 N791FA - Jul 21, 21:05 UTCJul 21, 23:40 UTC2h 35m
2026-07-21 N791FA - Jul 21, 03:50 UTCJul 21, 05:30 UTC1h 40m
2026-07-21 N791FA MYF → MYF Jul 21, 01:15 UTCJul 21, 02:55 UTC1h 40m
2026-07-20 N791FA MYF → MYF Jul 20, 16:40 UTCJul 20, 18:00 UTC1h 20m
2026-07-20 N791FA MYF → MYF Jul 20, 03:55 UTCJul 20, 06:00 UTC2h 5m
2026-07-20 N791FA MYF → MYF Jul 20, 01:20 UTCJul 20, 02:45 UTC1h 25m
2026-07-19 N791FA BFL → MYF Jul 19, 21:05 UTCJul 19, 23:05 UTC2h 0m
2026-07-19 N791FA - Jul 19, 16:40 UTCJul 19, 20:30 UTC3h 50m
2026-07-18 N791FA MYF → MYF Jul 18, 19:45 UTCJul 18, 20:45 UTC1h 0m
2026-07-18 N791FA - Jul 18, 02:05 UTCJul 18, 03:05 UTC1h 1m
2026-07-17 N791FA - Jul 17, 01:59 UTCJul 17, 03:20 UTC1h 20m
2026-07-16 N791FA SBD → MYF Jul 16, 21:00 UTCJul 16, 22:10 UTC1h 10m
2026-07-16 N791FA HMT → SBD Jul 16, 20:25 UTCJul 16, 20:55 UTC30m
2026-07-16 N791FA - Jul 16, 19:35 UTCJul 16, 20:19 UTC45m
2026-07-16 N791FA - Jul 16, 17:00 UTCJul 16, 18:19 UTC1h 20m
2026-07-16 N791FA - Jul 16, 05:25 UTCJul 16, 06:40 UTC1h 15m
2026-07-16 N791FA - Jul 16, 03:45 UTCJul 16, 04:45 UTC1h 0m
2026-07-15 N791FA SBD → MYF Jul 15, 23:50 UTCJul 16, 00:45 UTC55m
2026-07-15 N791FA MYF → SBD Jul 15, 22:35 UTCJul 15, 23:35 UTC1h 0m
2026-07-15 N791FA MYF → MYF Jul 15, 19:10 UTCJul 15, 20:45 UTC1h 35m
2026-07-15 N791FA - Jul 15, 15:25 UTCJul 15, 15:55 UTC30m
2026-07-15 N791FA - Jul 15, 14:20 UTCJul 15, 15:20 UTC1h 0m
2026-07-15 N791FA MYF → MYF Jul 15, 00:55 UTCJul 15, 02:30 UTC1h 35m
2026-07-14 N791FA - Jul 14, 19:40 UTCJul 14, 20:55 UTC1h 15m
2026-07-14 N791FA - Jul 14, 17:30 UTCJul 14, 17:55 UTC25m
2026-07-14 N791FA MYF → OCN Jul 14, 16:40 UTCJul 14, 17:25 UTC45m
2026-07-14 N791FA - Jul 14, 14:15 UTCJul 14, 15:40 UTC1h 25m
2026-07-14 N791FA MYF → MYF Jul 14, 01:15 UTCJul 14, 02:10 UTC55m
2026-07-13 N791FA MYF → MYF Jul 13, 19:50 UTCJul 13, 22:00 UTC2h 10m
2026-07-12 N791FA - Jul 12, 19:50 UTCJul 12, 21:10 UTC1h 20m
2026-07-12 N791FA MYF → MYF Jul 12, 01:35 UTCJul 12, 03:15 UTC1h 40m

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 N791FA page for operator, model, and routing details .

Mode-S AABC3A frequently asked

What is Mode-S code AABC3A?
AABC3A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N791FA.
Where is Mode-S AABC3A registered?
Mode-S code AABC3A 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 AABC3A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AABC3A, octal 52536072, decimal 11,189,306.
What flights does AABC3A operate?
Mode-S AABC3A has broadcast 1 distinct callsign, including N791FA.