Apparatus

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sensors Mode-S transponder

A3615F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N317FR · AIRBUS A-320neo · operated by WELLS FARGO TRUST CO NA TRUSTEE

Hex
A3615F
Octal
50660537
Decimal
10,707,295
Country
US
Tail
N317FR
Type
A20N
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
538
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A3615F.

Country allocation

The ICAO 24-bit address A3615F 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 20 distinct

Callsign Airline Flights Last seen
FFT2779 Frontier Airlines 9 2026-05-26
FFT4989 - 5 2026-07-13
FFT4612 Frontier Airlines 5 2026-06-12
FFT2292 Frontier Airlines 5 2026-05-20
FFT2145 Frontier Airlines 5 2026-04-21
FFT4371 Frontier Airlines 4 2026-06-12
FFT3439 - 4 2026-07-19
FFT3219 - 4 2026-07-12
FFT2900 Frontier Airlines 4 2026-05-26
FFT2818 - 4 2026-07-13
FFT2261 - 4 2026-07-15
FFT1973 - 4 2026-06-17
FFT1765 Frontier Airlines 4 2026-06-04
FFT1426 - 4 2026-06-23
FFT1425 Frontier Airlines 4 2026-06-17
FFT1342 Frontier Airlines 4 2026-05-12
FFT1263 Frontier Airlines 4 2026-05-26
FFT1230 Frontier Airlines 4 2026-07-19
FFT1183 Frontier Airlines 4 2026-05-30
FFT4411 - 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT1790 PDX → DEN Jul 26, 19:20 UTCJul 26, 21:45 UTC2h 25m
2026-07-26 FFT4499 BWI → ATL Jul 26, 16:25 UTCJul 26, 18:10 UTC1h 45m
2026-07-26 FFT3155 DEN → LAX Jul 26, 13:10 UTCJul 26, 15:05 UTC1h 55m
2026-07-26 FFT2016 LAS → DEN Jul 26, 08:05 UTCJul 26, 09:25 UTC1h 20m
2026-07-26 FFT777 DEN → LAS Jul 26, 04:35 UTCJul 26, 06:00 UTC1h 25m
2026-07-26 FFT3725 CVG → DEN Jul 26, 00:30 UTCJul 26, 02:55 UTC2h 25m
2026-07-25 FFT3286 DEN → CVG Jul 25, 20:55 UTCJul 25, 23:10 UTC2h 15m
2026-07-25 FFT4639 CLE → DEN Jul 25, 16:35 UTCJul 25, 19:15 UTC2h 40m
2026-07-25 FFT1918 DEN → CLE Jul 25, 12:05 UTCJul 25, 14:30 UTC2h 25m
2026-07-25 FFT1918 DEN → CLE Jul 25, 12:13 UTCJul 25, 14:25 UTC2h 12m
2026-07-25 FFT2107 FSD → DEN Jul 25, 01:50 UTCJul 25, 02:55 UTC1h 5m
2026-07-24 FFT2108 DEN → FSD Jul 24, 22:55 UTCJul 25, 00:10 UTC1h 15m
2026-07-24 FFT1790 PDX → DEN Jul 24, 19:20 UTCJul 24, 21:20 UTC2h 0m
2026-07-24 FFT4499 BWI → ATL Jul 24, 16:40 UTCJul 24, 18:20 UTC1h 40m
2026-07-24 FFT3155 DEN → LAX Jul 24, 13:50 UTCJul 24, 15:40 UTC1h 50m
2026-07-24 FFT2147 DFW → DEN Jul 24, 11:20 UTCJul 24, 12:50 UTC1h 30m
2026-07-24 FFT1757 CVG → TPA Jul 24, 00:45 UTCJul 24, 02:35 UTC1h 50m
2026-07-24 FFT1757 CVG → TPA Jul 24, 00:47 UTCJul 24, 02:34 UTC1h 47m
2026-07-23 FFT4280 DFW → CVG Jul 23, 21:50 UTCJul 23, 23:35 UTC1h 45m
2026-07-23 FFT2274 LAX → DFW Jul 23, 16:55 UTCJul 23, 19:30 UTC2h 35m
2026-07-23 FFT2274 LAX → DFW Jul 23, 16:51 UTCJul 23, 19:29 UTC2h 38m
2026-07-23 FFT2273 ATL → MSY Jul 23, 12:55 UTCJul 23, 15:35 UTC2h 40m
2026-07-23 FFT2273 ATL → MSY Jul 23, 12:30 UTCJul 23, 12:35 UTC5m
2026-07-23 FFT3165 CLT → DFW Jul 23, 00:55 UTCJul 23, 02:55 UTC2h 0m
2026-07-23 FFT3165 CLT → DFW Jul 23, 00:35 UTCJul 23, 02:54 UTC2h 19m
2026-07-22 FFT3110 DFW → CLT Jul 22, 20:25 UTCJul 22, 22:25 UTC2h 0m
2026-07-22 FFT3177 PHL → RSW Jul 22, 16:00 UTCJul 22, 18:10 UTC2h 10m
2026-07-22 FFT3178 DFW → DTW Jul 22, 12:25 UTCJul 22, 14:35 UTC2h 10m
2026-07-21 FFT4652 SNA → DFW Jul 21, 16:10 UTCJul 21, 18:45 UTC2h 35m
2026-07-20 FFT3325 DFW → SNA Jul 20, 21:45 UTCJul 21, 00:15 UTC2h 29m
2026-07-20 FFT3366 DEN → DFW Jul 20, 16:40 UTCJul 20, 18:10 UTC1h 30m
2026-07-20 FFT3366 DEN → DFW Jul 20, 16:22 UTCJul 20, 18:02 UTC1h 40m
2026-07-20 FFT685 DCA → DEN Jul 20, 11:10 UTCJul 20, 14:25 UTC3h 15m
2026-07-19 FFT690 DEN → DCA Jul 19, 22:40 UTCJul 20, 01:35 UTC2h 55m
2026-07-19 FFT1091 IND → MCO Jul 19, 19:30 UTCJul 19, 20:55 UTC1h 25m
2026-07-19 FFT4344 - Jul 19, 17:05 UTCJul 19, 18:20 UTC1h 15m
2026-07-19 FFT1230 MCO → GRB Jul 19, 13:15 UTCJul 19, 15:20 UTC2h 5m
2026-07-19 FFT3439 DEN → SFO Jul 19, 04:45 UTCJul 19, 06:55 UTC2h 10m
2026-07-19 FFT3439 DEN → SFO Jul 19, 04:42 UTCJul 19, 06:50 UTC2h 8m
2026-07-19 FFT4543 CID → DEN Jul 19, 01:35 UTCJul 19, 03:10 UTC1h 35m
2026-07-19 FFT4543 CID → DEN Jul 19, 01:36 UTCJul 19, 03:05 UTC1h 29m
2026-07-18 FFT4386 - Jul 18, 22:50 UTCJul 19, 00:15 UTC1h 25m
2026-07-18 FFT1091 - Jul 18, 19:25 UTCJul 18, 20:50 UTC1h 25m
2026-07-18 FFT4344 - Jul 18, 17:05 UTCJul 18, 18:25 UTC1h 20m
2026-07-18 FFT1230 MCO → GRB Jul 18, 13:20 UTCJul 18, 15:20 UTC2h 0m
2026-07-18 FFT1230 MCO → GRB Jul 18, 13:13 UTCJul 18, 15:16 UTC2h 3m
2026-07-18 FFT3439 DEN → SFO Jul 18, 04:45 UTCJul 18, 06:50 UTC2h 5m
2026-07-18 FFT4625 AWM → DEN Jul 18, 01:20 UTCJul 18, 03:10 UTC1h 51m
2026-07-17 FFT4626 DEN → MEM Jul 17, 22:20 UTCJul 18, 00:10 UTC1h 50m
2026-07-17 FFT4626 DEN → MEM Jul 17, 21:56 UTCJul 18, 00:07 UTC2h 11m

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 N317FR page for operator, model, and routing details .

Mode-S A3615F frequently asked

What is Mode-S code A3615F?
A3615F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N317FR.
Where is Mode-S A3615F registered?
Mode-S code A3615F 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 A3615F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3615F, octal 50660537, decimal 10,707,295.
What flights does A3615F operate?
Mode-S A3615F has broadcast 20 distinct callsigns, including FFT2779, FFT4989, FFT4612, FFT2292, FFT2145.