sensors Mode-S transponder

A808DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N617BG · PILATUS PC-12 · operated by LIFE FLIGHT NETWORK LLC

Hex
A808DF
Octal
52004337
Decimal
11,012,319
Country
US
Tail
N617BG
Type
PC12
No current signal · last broadcast 19h ago
Flights observed
8
Distinct callsigns
1
Country
US
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S A808DF.

Country allocation

The ICAO 24-bit address A808DF 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
N617BG - 8 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 N617BG - Apr 14, 05:15 UTCApr 14, 05:40 UTC25m
2026-04-13 N617BG - Apr 13, 09:50 UTCApr 13, 10:25 UTC35m
2026-04-13 N617BG - Apr 13, 08:20 UTCApr 13, 08:50 UTC30m
2026-04-13 N617BG - Apr 13, 04:20 UTCApr 13, 04:30 UTC10m
2026-04-13 N617BG - Apr 13, 03:55 UTCApr 13, 04:30 UTC35m
2026-04-13 N617BG - Apr 13, 03:35 UTCApr 13, 04:15 UTC40m
2026-04-13 N617BG - Apr 13, 01:35 UTCApr 13, 02:20 UTC45m
2026-04-12 N617BG - Apr 12, 18:20 UTCApr 12, 18:50 UTC30m

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 N617BG page for operator, model, and routing details .

Mode-S A808DF frequently asked

What is Mode-S code A808DF?
A808DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N617BG.
Where is Mode-S A808DF registered?
Mode-S code A808DF 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 A808DF broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A808DF, octal 52004337, decimal 11,012,319.
What flights does A808DF operate?
Mode-S A808DF has broadcast 1 distinct callsign, including N617BG.