sensors Mode-S transponder

A7FA70

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N613FR · AIRBUS A-321neo · operated by BANK OF UTAH TRUSTEE

Hex
A7FA70
Octal
51775160
Decimal
11,008,624
Country
US
Tail
N613FR
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
7
Distinct callsigns
5
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A7FA70.

Country allocation

The ICAO 24-bit address A7FA70 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 5 distinct

Callsign Airline Flights Last seen
FFT3232 Frontier Airlines 2 2026-04-13
FFT2169 - 2 2026-04-13
FFT3231 - 1 2026-04-12
FFT2170 - 1 2026-04-13
FFT1056 - 1 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-13 FFT2170 - Apr 13, 22:20 UTCApr 13, 23:45 UTC1h 25m
2026-04-13 FFT2169 - Apr 13, 19:50 UTCApr 13, 20:50 UTC1h 0m
2026-04-13 FFT2169 - Apr 13, 16:40 UTCApr 13, 20:10 UTC3h 30m
2026-04-13 FFT1056 - Apr 13, 12:55 UTCApr 13, 15:05 UTC2h 10m
2026-04-13 FFT3232 LAS → CLE Apr 13, 03:55 UTCApr 13, 04:20 UTC25m
2026-04-13 FFT3232 LAS → CLE Apr 13, 00:50 UTCApr 13, 04:15 UTC3h 25m
2026-04-12 FFT3231 - Apr 12, 18:40 UTCApr 12, 20:15 UTC1h 35m

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 N613FR page for operator, model, and routing details .

Mode-S A7FA70 frequently asked

What is Mode-S code A7FA70?
A7FA70 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N613FR.
Where is Mode-S A7FA70 registered?
Mode-S code A7FA70 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 A7FA70 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 A7FA70, octal 51775160, decimal 11,008,624.
What flights does A7FA70 operate?
Mode-S A7FA70 has broadcast 5 distinct callsigns, including FFT3232, FFT2169, FFT3231, FFT2170, FFT1056.