Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AA8952

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7781Z · PIPER PA-25 Pawnee · operated by BRANDYWINE SOARING ASSOCIATION

Hex
AA8952
Octal
52504522
Decimal
11,176,274
Country
US
Tail
N7781Z
Type
PA25
No current signal · last broadcast Jul 26, 19:00 UTC
Flights observed
54
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 19:00 UTC

Last known position

Most recent position reported by Mode-S AA8952.

Country allocation

The ICAO 24-bit address AA8952 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
N7781Z - 54 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N7781Z - Jul 26, 14:05 UTCJul 26, 19:00 UTC4h 55m
2026-07-25 N7781Z - Jul 25, 19:50 UTCJul 25, 20:15 UTC25m
2026-07-25 N7781Z - Jul 25, 17:55 UTCJul 25, 18:50 UTC55m
2026-07-25 N7781Z - Jul 25, 14:25 UTCJul 25, 16:50 UTC2h 25m
2026-07-22 N7781Z - Jul 22, 16:15 UTCJul 22, 18:35 UTC2h 20m
2026-07-22 N7781Z - Jul 22, 13:50 UTCJul 22, 16:10 UTC2h 20m
2026-07-15 N7781Z - Jul 15, 13:00 UTCJul 15, 16:15 UTC3h 15m
2026-07-12 N7781Z - Jul 12, 20:15 UTCJul 12, 20:30 UTC15m
2026-07-12 N7781Z - Jul 12, 18:55 UTCJul 12, 19:15 UTC20m
2026-07-12 N7781Z - Jul 12, 17:50 UTCJul 12, 18:20 UTC30m
2026-07-12 N7781Z - Jul 12, 15:55 UTCJul 12, 16:35 UTC40m
2026-07-12 N7781Z - Jul 12, 13:50 UTCJul 12, 15:20 UTC1h 30m
2026-07-01 N7781Z - Jul 1, 18:10 UTCJul 1, 19:55 UTC1h 45m
2026-07-01 N7781Z - Jul 1, 13:45 UTCJul 1, 17:20 UTC3h 35m
2026-06-30 N7781Z - Jun 30, 15:00 UTCJun 30, 18:35 UTC3h 35m
2026-06-30 N7781Z - Jun 30, 14:25 UTCJun 30, 14:50 UTC25m
2026-06-30 N7781Z - Jun 30, 13:50 UTCJun 30, 14:10 UTC20m
2026-06-29 N7781Z - Jun 29, 17:40 UTCJun 29, 19:35 UTC1h 55m
2026-06-29 N7781Z - Jun 29, 16:59 UTCJun 29, 17:10 UTC10m
2026-06-29 N7781Z - Jun 29, 15:04 UTCJun 29, 15:39 UTC35m
2026-06-24 N7781Z - Jun 24, 16:54 UTCJun 24, 20:49 UTC3h 55m
2026-06-24 N7781Z - Jun 24, 14:09 UTCJun 24, 15:44 UTC1h 35m
2026-06-21 N7781Z - Jun 21, 19:09 UTCJun 21, 19:20 UTC10m
2026-06-21 N7781Z - Jun 21, 17:50 UTCJun 21, 18:25 UTC35m
2026-06-21 N7781Z - Jun 21, 14:50 UTCJun 21, 16:10 UTC1h 20m
2026-06-21 N7781Z - Jun 21, 13:09 UTCJun 21, 14:10 UTC1h 0m
2026-06-20 N7781Z - Jun 20, 15:04 UTCJun 20, 16:19 UTC1h 15m
2026-06-20 N7781Z - Jun 20, 13:44 UTCJun 20, 14:19 UTC35m
2026-06-20 N7781Z - Jun 20, 13:04 UTCJun 20, 13:14 UTC10m
2026-06-17 N7781Z - Jun 17, 17:55 UTCJun 17, 18:05 UTC10m
2026-06-17 N7781Z - Jun 17, 16:00 UTCJun 17, 17:25 UTC1h 25m
2026-06-17 N7781Z - Jun 17, 14:25 UTCJun 17, 15:30 UTC1h 5m
2026-06-13 N7781Z - Jun 13, 15:25 UTCJun 13, 19:55 UTC4h 30m
2026-06-13 N7781Z - Jun 13, 13:50 UTCJun 13, 14:50 UTC1h 0m
2026-06-06 N7781Z - Jun 6, 13:44 UTCJun 6, 16:30 UTC2h 45m
2026-06-03 N7781Z - Jun 3, 14:20 UTCJun 3, 18:50 UTC4h 30m
2026-05-31 N7781Z - May 31, 13:20 UTCMay 31, 20:30 UTC7h 10m
2026-05-29 N7781Z - May 29, 20:40 UTCMay 29, 21:05 UTC25m
2026-05-29 N7781Z - May 29, 16:40 UTCMay 29, 17:05 UTC25m
2026-05-20 N7781Z - May 20, 14:10 UTCMay 20, 18:50 UTC4h 40m
2026-05-17 N7781Z - May 17, 12:55 UTCMay 17, 19:25 UTC6h 30m
2026-05-16 N7781Z - May 16, 13:01 UTCMay 16, 19:20 UTC6h 20m
2026-05-10 N7781Z - May 10, 16:59 UTCMay 10, 19:45 UTC2h 45m
2026-05-10 N7781Z - May 10, 15:19 UTCMay 10, 16:55 UTC1h 35m
2026-05-10 N7781Z - May 10, 13:35 UTCMay 10, 15:05 UTC1h 30m
2026-05-03 N7781Z - May 3, 13:50 UTCMay 3, 15:30 UTC1h 40m
2026-05-02 N7781Z - May 2, 18:50 UTCMay 2, 20:30 UTC1h 40m
2026-05-02 N7781Z - May 2, 17:30 UTCMay 2, 18:05 UTC35m
2026-05-02 N7781Z - May 2, 13:45 UTCMay 2, 17:25 UTC3h 40m
2026-04-30 N7781Z - Apr 30, 17:30 UTCApr 30, 18:35 UTC1h 5m

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 N7781Z page for operator, model, and routing details .

Mode-S AA8952 frequently asked

What is Mode-S code AA8952?
AA8952 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7781Z.
Where is Mode-S AA8952 registered?
Mode-S code AA8952 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 AA8952 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA8952, octal 52504522, decimal 11,176,274.
What flights does AA8952 operate?
Mode-S AA8952 has broadcast 1 distinct callsign, including N7781Z.