sensors Mode-S transponder

AA381A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N758DP · CESSNA 172 Skyhawk · operated by SWANSON ERIC DAVID

Hex
AA381A
Octal
52434032
Decimal
11,155,482
Country
US
Tail
N758DP
Type
C172
No current signal · last broadcast 19d ago
Flights observed
32
Distinct callsigns
1
Country
US
Last broadcast
19d ago

Last known position

Most recent position reported by Mode-S AA381A.

Country allocation

The ICAO 24-bit address AA381A 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
N758DP - 32 2026-07-24

Recent flights last 32

DateFlightRouteTakeoffLandingDuration
2026-07-24 N758DP - Jul 24, 14:20 UTCJul 24, 14:55 UTC35m
2026-07-24 N758DP - Jul 24, 12:00 UTCJul 24, 12:20 UTC20m
2026-07-22 N758DP - Jul 22, 12:00 UTCJul 22, 12:55 UTC55m
2026-07-20 N758DP - Jul 20, 13:35 UTCJul 20, 13:45 UTC10m
2026-07-10 N758DP - Jul 10, 15:55 UTCJul 10, 16:15 UTC20m
2026-07-08 N758DP - Jul 8, 13:35 UTCJul 8, 14:05 UTC30m
2026-07-08 N758DP - Jul 8, 11:40 UTCJul 8, 12:05 UTC25m
2026-07-04 N758DP - Jul 4, 11:50 UTCJul 4, 12:20 UTC30m
2026-06-24 N758DP - Jun 24, 13:20 UTCJun 24, 13:50 UTC30m
2026-06-24 N758DP - Jun 24, 11:39 UTCJun 24, 12:09 UTC30m
2026-06-22 N758DP - Jun 22, 15:50 UTCJun 22, 15:59 UTC10m
2026-06-20 N758DP - Jun 20, 13:59 UTCJun 20, 14:35 UTC35m
2026-06-20 N758DP - Jun 20, 12:19 UTCJun 20, 12:54 UTC35m
2026-06-16 N758DP - Jun 16, 16:35 UTCJun 16, 17:05 UTC30m
2026-06-15 N758DP - Jun 15, 15:59 UTCJun 15, 16:30 UTC30m
2026-06-15 N758DP - Jun 15, 11:39 UTCJun 15, 12:15 UTC35m
2026-06-13 N758DP - Jun 13, 14:10 UTCJun 13, 14:45 UTC35m
2026-06-13 N758DP - Jun 13, 12:25 UTCJun 13, 12:50 UTC25m
2026-06-08 N758DP - Jun 8, 17:00 UTCJun 8, 17:25 UTC25m
2026-05-29 N758DP - May 29, 14:05 UTCMay 29, 14:20 UTC15m
2026-05-29 N758DP - May 29, 11:20 UTCMay 29, 11:45 UTC25m
2026-05-28 N758DP - May 28, 14:30 UTCMay 28, 14:50 UTC20m
2026-05-20 N758DP - May 20, 17:10 UTCMay 20, 18:15 UTC1h 5m
2026-05-19 N758DP - May 19, 19:40 UTCMay 19, 20:10 UTC30m
2026-05-15 N758DP - May 15, 11:55 UTCMay 15, 12:25 UTC30m
2026-05-14 N758DP - May 14, 13:55 UTCMay 14, 14:25 UTC30m
2026-05-14 N758DP - May 14, 11:20 UTCMay 14, 11:45 UTC25m
2026-05-07 N758DP - May 7, 14:50 UTCMay 7, 15:25 UTC35m
2026-05-07 N758DP - May 7, 12:55 UTCMay 7, 13:20 UTC25m
2026-05-06 N758DP - May 6, 16:55 UTCMay 6, 17:15 UTC20m
2026-05-04 N758DP - May 4, 12:10 UTCMay 4, 12:30 UTC20m
2026-04-15 N758DP - Apr 15, 14:30 UTCApr 15, 14:55 UTC24m

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 N758DP page for operator, model, and routing details .

Mode-S AA381A frequently asked

What is Mode-S code AA381A?
AA381A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N758DP.
Where is Mode-S AA381A registered?
Mode-S code AA381A 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 AA381A broadcasting right now?
No active broadcast right now. Last signal was 19d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA381A, octal 52434032, decimal 11,155,482.
What flights does AA381A operate?
Mode-S AA381A has broadcast 1 distinct callsign, including N758DP.