sensors Mode-S transponder

AB09A8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N810DA · PIPER PA-28-140/150/160/180 · operated by MJH AERO INC

Hex
AB09A8
Octal
52604650
Decimal
11,209,128
Country
US
Tail
N810DA
Type
P28A
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AB09A8.

Country allocation

The ICAO 24-bit address AB09A8 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
N810DA - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 N810DA - Apr 13, 22:00 UTCApr 13, 22:25 UTC25m
2026-04-13 N810DA - Apr 13, 21:05 UTCApr 13, 21:25 UTC20m
2026-04-13 N810DA - Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 N810DA - Apr 13, 18:50 UTCApr 13, 19:55 UTC1h 5m
2026-04-13 N810DA - Apr 13, 13:00 UTCApr 13, 14:35 UTC1h 35m

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 N810DA page for operator, model, and routing details .

Mode-S AB09A8 frequently asked

What is Mode-S code AB09A8?
AB09A8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N810DA.
Where is Mode-S AB09A8 registered?
Mode-S code AB09A8 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 AB09A8 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 AB09A8, octal 52604650, decimal 11,209,128.
What flights does AB09A8 operate?
Mode-S AB09A8 has broadcast 1 distinct callsign, including N810DA.