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sensors Mode-S transponder

AA7F84

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N776CA · operated by CHRISTIANSEN AVIATION LLC

Hex
AA7F84
Octal
52477604
Decimal
11,173,764
Country
US
Tail
N776CA
Type
P28A
No current signal · last broadcast 1d ago
Flights observed
169
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AA7F84.

Country allocation

The ICAO 24-bit address AA7F84 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
ASI972 - 169 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ASI972 - Jul 13, 16:30 UTCJul 13, 17:25 UTC55m
2026-07-12 ASI972 - Jul 12, 23:10 UTCJul 13, 00:15 UTC1h 5m
2026-07-12 ASI972 - Jul 12, 17:05 UTCJul 12, 20:15 UTC3h 10m
2026-07-10 ASI972 - Jul 10, 19:10 UTCJul 10, 20:45 UTC1h 35m
2026-07-10 ASI972 - Jul 10, 15:45 UTCJul 10, 17:40 UTC1h 55m
2026-07-10 ASI972 - Jul 10, 14:45 UTCJul 10, 15:10 UTC25m
2026-07-09 ASI972 - Jul 9, 22:35 UTCJul 10, 00:45 UTC2h 10m
2026-07-09 ASI972 - Jul 9, 18:10 UTCJul 9, 20:45 UTC2h 35m
2026-07-09 ASI972 - Jul 9, 14:15 UTCJul 9, 16:25 UTC2h 10m
2026-07-02 ASI972 - Jul 2, 12:55 UTCJul 2, 14:35 UTC1h 40m
2026-07-01 ASI972 - Jul 1, 19:45 UTCJul 1, 20:40 UTC55m
2026-07-01 ASI972 - Jul 1, 04:30 UTCJul 1, 06:05 UTC1h 35m
2026-07-01 ASI972 - Jul 1, 03:00 UTCJul 1, 03:30 UTC30m
2026-06-30 ASI972 - Jun 30, 21:40 UTCJun 30, 23:10 UTC1h 30m
2026-06-30 ASI972 - Jun 30, 18:50 UTCJun 30, 20:15 UTC1h 25m
2026-06-30 ASI972 - Jun 30, 16:05 UTCJun 30, 17:45 UTC1h 40m
2026-06-30 ASI972 - Jun 30, 05:40 UTCJun 30, 06:55 UTC1h 15m
2026-06-30 ASI972 - Jun 30, 03:00 UTCJun 30, 03:50 UTC50m
2026-06-29 ASI972 - Jun 29, 23:34 UTCJun 30, 01:40 UTC2h 6m
2026-06-29 ASI972 - Jun 29, 20:30 UTCJun 29, 21:24 UTC55m
2026-06-29 ASI972 - Jun 29, 19:35 UTCJun 29, 19:54 UTC20m
2026-06-29 ASI972 - Jun 29, 02:35 UTCJun 29, 05:09 UTC2h 35m
2026-06-28 ASI972 - Jun 28, 19:55 UTCJun 28, 21:20 UTC1h 25m
2026-06-28 ASI972 - Jun 28, 14:34 UTCJun 28, 16:25 UTC1h 50m
2026-06-27 ASI972 - Jun 27, 17:04 UTCJun 27, 18:20 UTC1h 15m
2026-06-27 ASI972 - Jun 27, 04:09 UTCJun 27, 04:59 UTC50m
2026-06-26 ASI972 - Jun 26, 21:24 UTCJun 26, 22:44 UTC1h 20m
2026-06-26 ASI972 - Jun 26, 03:45 UTCJun 26, 06:29 UTC2h 45m
2026-06-25 ASI972 - Jun 25, 23:44 UTCJun 26, 01:24 UTC1h 40m
2026-06-25 ASI972 - Jun 25, 21:40 UTCJun 25, 22:45 UTC1h 5m
2026-06-25 ASI972 - Jun 25, 18:34 UTCJun 25, 19:59 UTC1h 25m
2026-06-25 ASI972 - Jun 25, 16:05 UTCJun 25, 17:20 UTC1h 15m
2026-06-25 ASI972 - Jun 25, 05:09 UTCJun 25, 07:54 UTC2h 45m
2026-06-25 ASI972 - Jun 25, 00:40 UTCJun 25, 01:30 UTC50m
2026-06-24 ASI972 - Jun 24, 21:34 UTCJun 24, 22:45 UTC1h 10m
2026-06-24 ASI972 - Jun 24, 17:05 UTCJun 24, 19:15 UTC2h 10m
2026-06-24 ASI972 - Jun 24, 14:29 UTCJun 24, 15:59 UTC1h 30m
2026-06-24 ASI972 - Jun 24, 02:49 UTCJun 24, 06:10 UTC3h 20m
2026-06-23 ASI972 - Jun 23, 23:29 UTCJun 24, 00:30 UTC1h 0m
2026-06-23 ASI972 - Jun 23, 19:04 UTCJun 23, 21:10 UTC2h 5m
2026-06-22 ASI972 - Jun 22, 21:45 UTCJun 22, 22:10 UTC25m
2026-06-22 ASI972 - Jun 22, 19:49 UTCJun 22, 20:24 UTC35m
2026-06-22 ASI972 - Jun 22, 15:14 UTCJun 22, 16:45 UTC1h 30m
2026-06-22 ASI972 - Jun 22, 11:24 UTCJun 22, 14:24 UTC3h 0m
2026-06-21 ASI972 - Jun 21, 23:40 UTCJun 22, 01:19 UTC1h 40m
2026-06-14 ASI972 - Jun 14, 17:25 UTCJun 14, 19:20 UTC1h 55m
2026-06-14 ASI972 - Jun 14, 12:55 UTCJun 14, 13:30 UTC35m
2026-06-14 ASI972 - Jun 14, 11:30 UTCJun 14, 12:20 UTC50m
2026-06-13 ASI972 - Jun 13, 18:05 UTCJun 13, 20:55 UTC2h 50m
2026-06-13 ASI972 - Jun 13, 14:35 UTCJun 13, 15:55 UTC1h 20m

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 N776CA page for operator, model, and routing details .

Mode-S AA7F84 frequently asked

What is Mode-S code AA7F84?
AA7F84 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N776CA.
Where is Mode-S AA7F84 registered?
Mode-S code AA7F84 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 AA7F84 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA7F84, octal 52477604, decimal 11,173,764.
What flights does AA7F84 operate?
Mode-S AA7F84 has broadcast 1 distinct callsign, including ASI972.