Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ABD474

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N861VL · BRITTEN-NORMAN BN-2 Islander · operated by VIEQUES AIR LINK INC

Hex
ABD474
Octal
52752164
Decimal
11,261,044
Country
US
Tail
N861VL
Type
BN2P
No current signal · last broadcast 1d ago
Flights observed
10
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ABD474.

Country allocation

The ICAO 24-bit address ABD474 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
N861VL - 10 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 N861VL - Apr 13, 21:40 UTCApr 13, 21:55 UTC15m
2026-04-13 N861VL - Apr 13, 20:00 UTCApr 13, 21:05 UTC1h 5m
2026-04-13 N861VL - Apr 13, 18:35 UTCApr 13, 20:10 UTC1h 35m
2026-04-13 N861VL - Apr 13, 17:05 UTCApr 13, 18:00 UTC55m
2026-04-13 N861VL - Apr 13, 15:15 UTCApr 13, 15:25 UTC10m
2026-04-13 N861VL - Apr 13, 12:20 UTCApr 13, 12:30 UTC10m
2026-04-13 N861VL - Apr 13, 12:05 UTCApr 13, 12:15 UTC10m
2026-04-13 N861VL - Apr 13, 11:10 UTCApr 13, 11:25 UTC15m
2026-04-12 N861VL - Apr 12, 19:35 UTCApr 12, 19:45 UTC10m
2026-04-12 N861VL - Apr 12, 17:20 UTCApr 12, 18:25 UTC1h 5m

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 N861VL page for operator, model, and routing details .

Mode-S ABD474 frequently asked

What is Mode-S code ABD474?
ABD474 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N861VL.
Where is Mode-S ABD474 registered?
Mode-S code ABD474 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 ABD474 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 ABD474, octal 52752164, decimal 11,261,044.
What flights does ABD474 operate?
Mode-S ABD474 has broadcast 1 distinct callsign, including N861VL.