sensors Mode-S transponder

A8EED8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N675FR · AIRBUS A-321neo · operated by FRONTIER AIRLINES INC.

Hex
A8EED8
Octal
52167330
Decimal
11,071,192
Country
US
Tail
N675FR
Type
A21N
Transponder active on ground
Flights observed
9
Distinct callsigns
7
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A8EED8.

Country allocation

The ICAO 24-bit address A8EED8 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
FFT3679 - 2 2026-04-13
FFT1244 - 2 2026-04-13
FFT4257 - 1 2026-04-13
FFT3735 - 1 2026-04-12
FFT3371 - 1 2026-04-13
FFT2730 - 1 2026-04-13
FFT1243 Frontier Airlines 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 FFT1243 BUF → TPA Apr 13, 22:55 UTCApr 13, 23:45 UTC50m
2026-04-13 FFT1244 - Apr 13, 19:50 UTCApr 13, 21:30 UTC1h 40m
2026-04-13 FFT1244 - Apr 13, 19:15 UTCApr 13, 20:10 UTC55m
2026-04-13 FFT3371 - Apr 13, 16:30 UTCApr 13, 17:55 UTC1h 25m
2026-04-13 FFT2730 TPA → RDU Apr 13, 13:35 UTCApr 13, 15:05 UTC1h 30m
2026-04-13 FFT3679 - Apr 13, 11:55 UTCApr 13, 12:25 UTC30m
2026-04-13 FFT3679 - Apr 13, 10:05 UTCApr 13, 12:15 UTC2h 10m
2026-04-13 FFT4257 - Apr 13, 00:55 UTCApr 13, 03:25 UTC2h 30m
2026-04-12 FFT3735 - Apr 12, 17:15 UTCApr 12, 18:30 UTC1h 15m

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 N675FR page for operator, model, and routing details .

Mode-S A8EED8 frequently asked

What is Mode-S code A8EED8?
A8EED8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N675FR.
Where is Mode-S A8EED8 registered?
Mode-S code A8EED8 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 A8EED8 broadcasting right now?
Mode-S A8EED8 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8EED8, octal 52167330, decimal 11,071,192.
What flights does A8EED8 operate?
Mode-S A8EED8 has broadcast 7 distinct callsigns, including FFT3679, FFT1244, FFT4257, FFT3735, FFT3371.