sensors Mode-S transponder

AAE374

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N800SG · SIKORSKY S-76 Spirit · operated by WHIRLYBIRD LLC, DGC VTOL LLC, ARROWCOPTER LLC, NYHCH LLC

Hex
AAE374
Octal
52561564
Decimal
11,199,348
Country
US
Tail
N800SG
Type
S76
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AAE374.

Country allocation

The ICAO 24-bit address AAE374 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
N800SG - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 N800SG TEB → BDR Apr 13, 22:05 UTCApr 13, 22:25 UTC20m
2026-04-13 N800SG NYS → JRA Apr 13, 21:20 UTCApr 13, 21:25 UTC5m
2026-04-13 N800SG - Apr 13, 20:45 UTCApr 13, 21:10 UTC25m
2026-04-13 N800SG TEB → BDR Apr 13, 13:10 UTCApr 13, 13:40 UTC30m
2026-04-13 N800SG - Apr 13, 12:20 UTCApr 13, 12:40 UTC20m
2026-04-12 N800SG - Apr 12, 17:15 UTCApr 12, 17:45 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 N800SG page for operator, model, and routing details .

Mode-S AAE374 frequently asked

What is Mode-S code AAE374?
AAE374 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N800SG.
Where is Mode-S AAE374 registered?
Mode-S code AAE374 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 AAE374 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 AAE374, octal 52561564, decimal 11,199,348.
What flights does AAE374 operate?
Mode-S AAE374 has broadcast 1 distinct callsign, including N800SG.