Apparatus

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sensors Mode-S transponder

ABCFEC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N860MB · AEROSPATIALE AS-350 Ecureuil · operated by TVPX AIRCRAFT SOLUTIONS INC TRUSTEE

Hex
ABCFEC
Octal
52747754
Decimal
11,259,884
Country
US
Tail
N860MB
Type
AS50
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 ABCFEC.

Country allocation

The ICAO 24-bit address ABCFEC 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
N860MB - 10 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 N860MB - Apr 13, 23:15 UTCApr 13, 23:35 UTC20m
2026-04-13 N860MB - Apr 13, 17:45 UTCApr 13, 18:25 UTC40m
2026-04-13 N860MB - Apr 13, 16:15 UTCApr 13, 16:25 UTC10m
2026-04-13 N860MB - Apr 13, 15:55 UTCApr 13, 16:15 UTC20m
2026-04-13 N860MB - Apr 13, 14:45 UTCApr 13, 14:55 UTC10m
2026-04-13 N860MB - Apr 13, 13:15 UTCApr 13, 13:30 UTC15m
2026-04-13 N860MB - Apr 13, 12:35 UTCApr 13, 12:40 UTC5m
2026-04-13 N860MB - Apr 13, 11:40 UTCApr 13, 11:50 UTC10m
2026-04-13 N860MB - Apr 13, 10:00 UTCApr 13, 10:15 UTC15m
2026-04-12 N860MB - Apr 12, 17:55 UTCApr 12, 18:05 UTC10m

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 N860MB page for operator, model, and routing details .

Mode-S ABCFEC frequently asked

What is Mode-S code ABCFEC?
ABCFEC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N860MB.
Where is Mode-S ABCFEC registered?
Mode-S code ABCFEC 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 ABCFEC 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 ABCFEC, octal 52747754, decimal 11,259,884.
What flights does ABCFEC operate?
Mode-S ABCFEC has broadcast 1 distinct callsign, including N860MB.