sensors Mode-S transponder

ABD23E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N86071 · operated by MCCUMBER PETER W

Hex
ABD23E
Octal
52751076
Decimal
11,260,478
Country
US
Tail
N86071
Type
C337
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 ABD23E.

Country allocation

The ICAO 24-bit address ABD23E 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
N86071 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 N86071 - Apr 13, 19:05 UTCApr 13, 19:50 UTC45m
2026-04-13 N86071 - Apr 13, 18:05 UTCApr 13, 18:35 UTC30m
2026-04-13 N86071 - Apr 13, 16:15 UTCApr 13, 17:30 UTC1h 15m
2026-04-13 N86071 - Apr 13, 15:50 UTCApr 13, 16:15 UTC25m
2026-04-13 N86071 - Apr 13, 12:25 UTCApr 13, 14:25 UTC2h 0m
2026-04-13 N86071 - Apr 13, 11:55 UTCApr 13, 14:25 UTC2h 30m

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 N86071 page for operator, model, and routing details .

Mode-S ABD23E frequently asked

What is Mode-S code ABD23E?
ABD23E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N86071.
Where is Mode-S ABD23E registered?
Mode-S code ABD23E 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 ABD23E 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 ABD23E, octal 52751076, decimal 11,260,478.
What flights does ABD23E operate?
Mode-S ABD23E has broadcast 1 distinct callsign, including N86071.