sensors Mode-S transponder

A8986C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N653FR · operated by BANK OF UTAH TRUSTEE

Hex
A8986C
Octal
52114154
Decimal
11,049,068
Country
US
Tail
N653FR
Type
A21N
No current signal · last broadcast 17h ago
Flights observed
8
Distinct callsigns
7
Country
US
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S A8986C.

Country allocation

The ICAO 24-bit address A8986C 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 7 distinct

Callsign Airline Flights Last seen
FFT4248 - 2 2026-04-14
FFT3418 - 1 2026-04-13
FFT3417 - 1 2026-04-13
FFT3107 - 1 2026-04-12
FFT1992 - 1 2026-04-13
FFT1507 - 1 2026-04-13
FFT1122 Frontier Airlines 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 FFT4248 - Apr 14, 07:10 UTCApr 14, 07:25 UTC15m
2026-04-14 FFT4248 - Apr 14, 06:58 UTCApr 14, 08:06 UTC1h 8m
2026-04-13 FFT1992 LAS → OKC Apr 13, 21:03 UTCApr 13, 23:25 UTC2h 22m
2026-04-13 FFT3417 - Apr 13, 16:45 UTCApr 13, 19:15 UTC2h 30m
2026-04-13 FFT3418 - Apr 13, 13:20 UTCApr 13, 15:30 UTC2h 10m
2026-04-13 FFT1507 - Apr 13, 04:25 UTCApr 13, 05:30 UTC1h 5m
2026-04-13 FFT1122 MEM → MCO Apr 13, 01:23 UTCApr 13, 02:24 UTC1h 1m
2026-04-12 FFT3107 - Apr 12, 18:30 UTCApr 12, 20:15 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 N653FR page for operator, model, and routing details .

Mode-S A8986C frequently asked

What is Mode-S code A8986C?
A8986C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N653FR.
Where is Mode-S A8986C registered?
Mode-S code A8986C 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 A8986C broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8986C, octal 52114154, decimal 11,049,068.
What flights does A8986C operate?
Mode-S A8986C has broadcast 7 distinct callsigns, including FFT4248, FFT3418, FFT3417, FFT3107, FFT1992.