sensors Mode-S transponder

A9887C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N713PE · PILATUS PC-12 · operated by ALLEN AIR LLC

Hex
A9887C
Octal
52304174
Decimal
11,110,524
Country
US
Tail
N713PE
Type
PC12
Broadcasting now · callsign N713PE · 13,950 ft
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Current position

A9887C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A9887C 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
N713PE - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 N713PE - Apr 13, 19:50 UTCApr 13, 20:05 UTC15m
2026-04-13 N713PE - Apr 13, 17:35 UTCApr 13, 20:05 UTC2h 30m
2026-04-13 N713PE - Apr 13, 16:15 UTCApr 13, 16:45 UTC30m
2026-04-13 N713PE - Apr 13, 15:50 UTCApr 13, 16:45 UTC55m
2026-04-13 N713PE - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 N713PE - Apr 13, 12:45 UTCApr 13, 14:30 UTC1h 45m

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 N713PE page for operator, model, and routing details .

Mode-S A9887C frequently asked

What is Mode-S code A9887C?
A9887C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N713PE.
Where is Mode-S A9887C registered?
Mode-S code A9887C 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 A9887C broadcasting right now?
Yes. Mode-S A9887C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9887C, octal 52304174, decimal 11,110,524.
What flights does A9887C operate?
Mode-S A9887C has broadcast 1 distinct callsign, including N713PE.