sensors Mode-S transponder

A808BB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N61697 · CESSNA 172 Skyhawk · operated by L&W AIRCRAFT INVESTMENT LLC

Hex
A808BB
Octal
52004273
Decimal
11,012,283
Country
US
Tail
N61697
Type
C172
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 A808BB.

Country allocation

The ICAO 24-bit address A808BB 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
N61697 - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 N61697 - Apr 13, 20:30 UTCApr 13, 21:50 UTC1h 20m
2026-04-13 N61697 - Apr 13, 16:45 UTCApr 13, 17:50 UTC1h 5m
2026-04-13 N61697 - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 N61697 TMB → TMB Apr 13, 14:50 UTCApr 13, 16:00 UTC1h 10m
2026-04-13 N61697 - Apr 13, 12:50 UTCApr 13, 13:50 UTC1h 0m

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 N61697 page for operator, model, and routing details .

Mode-S A808BB frequently asked

What is Mode-S code A808BB?
A808BB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N61697.
Where is Mode-S A808BB registered?
Mode-S code A808BB 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 A808BB 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 A808BB, octal 52004273, decimal 11,012,283.
What flights does A808BB operate?
Mode-S A808BB has broadcast 1 distinct callsign, including N61697.