Apparatus

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sensors Mode-S transponder

AA520E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N764TA · operated by T SQUARED AVIATION LLC

Hex
AA520E
Octal
52451016
Decimal
11,162,126
Country
US
Tail
N764TA
Type
SR20
No current signal · last broadcast Jul 26, 18:45 UTC
Flights observed
99
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 18:45 UTC

Last known position

Most recent position reported by Mode-S AA520E.

Country allocation

The ICAO 24-bit address AA520E 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
N764TA - 99 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N764TA - Jul 26, 16:05 UTCJul 26, 18:45 UTC2h 40m
2026-07-25 N764TA - Jul 25, 22:20 UTCJul 25, 23:30 UTC1h 10m
2026-07-25 N764TA - Jul 25, 17:30 UTCJul 25, 18:50 UTC1h 20m
2026-07-24 N764TA - Jul 24, 22:20 UTCJul 24, 23:35 UTC1h 15m
2026-07-24 N764TA - Jul 24, 18:35 UTCJul 24, 20:00 UTC1h 25m
2026-07-23 N764TA - Jul 23, 15:50 UTCJul 23, 17:10 UTC1h 20m
2026-07-22 N764TA - Jul 22, 22:45 UTCJul 22, 23:45 UTC1h 0m
2026-07-22 N764TA - Jul 22, 18:30 UTCJul 22, 20:00 UTC1h 30m
2026-07-22 N764TA - Jul 22, 13:45 UTCJul 22, 14:30 UTC45m
2026-07-14 N764TA - Jul 14, 22:05 UTCJul 14, 23:40 UTC1h 34m
2026-07-10 N764TA - Jul 10, 21:15 UTCJul 10, 21:25 UTC10m
2026-07-10 N764TA - Jul 10, 13:30 UTCJul 10, 13:50 UTC20m
2026-07-09 N764TA - Jul 9, 15:35 UTCJul 9, 16:35 UTC1h 0m
2026-07-08 N764TA - Jul 8, 17:25 UTCJul 8, 17:40 UTC15m
2026-07-08 N764TA - Jul 8, 16:20 UTCJul 8, 16:45 UTC25m
2026-07-07 N764TA - Jul 7, 15:05 UTCJul 7, 15:55 UTC50m
2026-07-07 N764TA - Jul 7, 00:30 UTCJul 7, 01:30 UTC1h 0m
2026-07-06 N764TA - Jul 6, 18:45 UTCJul 6, 20:45 UTC2h 0m
2026-07-05 N764TA - Jul 5, 20:40 UTCJul 5, 20:50 UTC10m
2026-07-05 N764TA - Jul 5, 19:00 UTCJul 5, 19:20 UTC20m
2026-07-02 N764TA - Jul 2, 18:35 UTCJul 2, 20:25 UTC1h 50m
2026-07-01 N764TA - Jul 1, 17:50 UTCJul 1, 19:15 UTC1h 25m
2026-06-30 N764TA - Jun 30, 22:55 UTCJun 30, 23:55 UTC1h 0m
2026-06-30 N764TA - Jun 30, 20:40 UTCJun 30, 21:10 UTC30m
2026-06-30 N764TA - Jun 30, 17:25 UTCJun 30, 18:45 UTC1h 20m
2026-06-29 N764TA - Jun 29, 16:04 UTCJun 29, 17:19 UTC1h 15m
2026-06-26 N764TA - Jun 26, 16:14 UTCJun 26, 17:29 UTC1h 15m
2026-06-25 N764TA - Jun 25, 22:34 UTCJun 25, 23:55 UTC1h 20m
2026-06-24 N764TA - Jun 24, 21:19 UTCJun 24, 22:39 UTC1h 20m
2026-06-24 N764TA - Jun 24, 15:05 UTCJun 24, 16:09 UTC1h 5m
2026-06-24 N764TA - Jun 24, 01:24 UTCJun 24, 01:34 UTC10m
2026-06-23 N764TA - Jun 23, 23:14 UTCJun 24, 00:30 UTC1h 15m
2026-06-23 N764TA - Jun 23, 22:15 UTCJun 23, 22:34 UTC20m
2026-06-23 N764TA - Jun 23, 17:20 UTCJun 23, 18:39 UTC1h 20m
2026-06-21 N764TA - Jun 21, 16:39 UTCJun 21, 18:14 UTC1h 35m
2026-06-04 N764TA - Jun 4, 15:15 UTCJun 4, 16:30 UTC1h 15m
2026-06-02 N764TA - Jun 2, 19:45 UTCJun 2, 20:50 UTC1h 5m
2026-06-02 N764TA - Jun 2, 00:00 UTCJun 2, 01:25 UTC1h 25m
2026-06-01 N764TA - Jun 1, 20:05 UTCJun 1, 20:15 UTC10m
2026-06-01 N764TA - Jun 1, 18:30 UTCJun 1, 18:45 UTC15m
2026-06-01 N764TA - Jun 1, 15:20 UTCJun 1, 16:10 UTC50m
2026-05-31 N764TA - May 31, 22:40 UTCMay 31, 22:50 UTC10m
2026-05-31 N764TA - May 31, 19:35 UTCMay 31, 20:45 UTC1h 10m
2026-05-31 N764TA - May 31, 15:35 UTCMay 31, 16:45 UTC1h 10m
2026-05-31 N764TA - May 31, 13:00 UTCMay 31, 14:50 UTC1h 50m
2026-05-30 N764TA - May 30, 22:05 UTCMay 30, 22:25 UTC20m
2026-05-30 N764TA - May 30, 15:30 UTCMay 30, 16:20 UTC50m
2026-05-28 N764TA - May 28, 22:45 UTCMay 29, 00:20 UTC1h 35m
2026-05-28 N764TA - May 28, 18:25 UTCMay 28, 18:35 UTC10m
2026-05-28 N764TA - May 28, 15:40 UTCMay 28, 16:50 UTC1h 10m

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 N764TA page for operator, model, and routing details .

Mode-S AA520E frequently asked

What is Mode-S code AA520E?
AA520E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N764TA.
Where is Mode-S AA520E registered?
Mode-S code AA520E 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 AA520E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA520E, octal 52451016, decimal 11,162,126.
What flights does AA520E operate?
Mode-S AA520E has broadcast 1 distinct callsign, including N764TA.