Apparatus

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sensors Mode-S transponder

A02D40

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N110LU · CESSNA 172R Cutlass RG · operated by LYNN UNIVERSITY INC

Hex
A02D40
Octal
50026500
Decimal
10,497,344
Country
US
Tail
N110LU
Type
C72R
No current signal · last broadcast 12h ago
Flights observed
11
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A02D40.

Country allocation

The ICAO 24-bit address A02D40 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
N110LU - 11 2026-04-14

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 N110LU - Apr 14, 10:35 UTCApr 14, 11:05 UTC30m
2026-04-13 N110LU - Apr 13, 22:50 UTCApr 13, 23:45 UTC55m
2026-04-13 N110LU - Apr 13, 20:10 UTCApr 13, 20:20 UTC10m
2026-04-13 N110LU - Apr 13, 19:55 UTCApr 13, 20:00 UTC5m
2026-04-13 N110LU LNA → LNA Apr 13, 19:30 UTCApr 13, 19:40 UTC10m
2026-04-13 N110LU - Apr 13, 19:00 UTCApr 13, 19:10 UTC10m
2026-04-13 N110LU - Apr 13, 17:15 UTCApr 13, 18:15 UTC1h 0m
2026-04-13 N110LU - Apr 13, 15:55 UTCApr 13, 16:10 UTC15m
2026-04-13 N110LU - Apr 13, 14:45 UTCApr 13, 16:10 UTC1h 25m
2026-04-13 N110LU - Apr 13, 12:00 UTCApr 13, 12:15 UTC15m
2026-04-13 N110LU - Apr 13, 11:05 UTCApr 13, 11:20 UTC15m

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 N110LU page for operator, model, and routing details .

Mode-S A02D40 frequently asked

What is Mode-S code A02D40?
A02D40 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N110LU.
Where is Mode-S A02D40 registered?
Mode-S code A02D40 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 A02D40 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A02D40, octal 50026500, decimal 10,497,344.
What flights does A02D40 operate?
Mode-S A02D40 has broadcast 1 distinct callsign, including N110LU.