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 4h ago
Flights observed
467
Distinct callsigns
20
Country
US
Last broadcast
4h ago

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
FFT3219 - 4 2026-07-12
FFT2900 Frontier Airlines 4 2026-05-26
FFT2818 - 4 2026-07-13
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
FFT1183 Frontier Airlines 4 2026-05-30
FFT4411 - 3 2026-04-13
FFT4372 - 3 2026-06-12
FFT4064 - 3 2026-04-13
FFT3981 Frontier Airlines 3 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 FFT1693 - Jul 13, 21:00 UTCJul 13, 23:25 UTC2h 25m
2026-07-13 FFT1693 CMH → DEN Jul 13, 20:57 UTCJul 13, 23:24 UTC2h 27m
2026-07-13 FFT1694 DEN → CMH Jul 13, 17:15 UTCJul 13, 19:50 UTC2h 35m
2026-07-13 FFT2818 - Jul 13, 13:35 UTCJul 13, 15:30 UTC1h 55m
2026-07-13 FFT4989 DEN → SAN Jul 13, 05:05 UTCJul 13, 07:05 UTC2h 0m
2026-07-13 FFT4775 - Jul 13, 01:15 UTCJul 13, 02:55 UTC1h 40m
2026-07-12 FFT4776 - Jul 12, 22:30 UTCJul 13, 00:01 UTC1h 30m
2026-07-12 FFT3982 SLC → DEN Jul 12, 19:50 UTCJul 12, 20:50 UTC1h 0m
2026-07-12 FFT3219 DEN → SLC Jul 12, 17:30 UTCJul 12, 18:35 UTC1h 5m
2026-07-12 FFT3219 DEN → SLC Jul 12, 17:23 UTCJul 12, 18:33 UTC1h 10m
2026-07-12 FFT2818 - Jul 12, 13:40 UTCJul 12, 15:40 UTC2h 0m
2026-07-12 FFT4989 - Jul 12, 04:45 UTCJul 12, 06:40 UTC1h 55m
2026-07-12 FFT1247 - Jul 12, 00:40 UTCJul 12, 02:50 UTC2h 10m
2026-07-11 FFT1248 DEN → GRR Jul 11, 21:25 UTCJul 11, 23:30 UTC2h 5m
2026-07-11 FFT1401 - Jul 11, 17:35 UTCJul 11, 19:55 UTC2h 20m
2026-07-11 FFT1402 DEN → BNA Jul 11, 14:00 UTCJul 11, 16:00 UTC2h 0m
2026-07-11 FFT2745 - Jul 11, 02:00 UTCJul 11, 05:20 UTC3h 20m
2026-07-10 FFT1689 - Jul 10, 21:15 UTCJul 11, 00:30 UTC3h 15m
2026-07-10 FFT1689 TTN → TPA Jul 10, 20:56 UTCJul 11, 00:30 UTC3h 34m
2026-07-10 FFT1690 - Jul 10, 17:50 UTCJul 10, 20:00 UTC2h 10m
2026-07-10 FFT3782 - Jul 10, 16:05 UTCJul 10, 16:40 UTC35m
2026-07-10 FFT3782 ATL → TPA Jul 10, 15:40 UTCJul 10, 16:40 UTC1h 0m
2026-07-10 FFT3782 ATL → TPA Jul 10, 14:19 UTCJul 10, 15:48 UTC1h 29m
2026-07-10 FFT2467 - Jul 10, 10:45 UTCJul 10, 12:00 UTC1h 15m
2026-07-07 FFT1055 MCO → CLE Jul 7, 23:45 UTCJul 8, 01:35 UTC1h 50m
2026-07-07 FFT4173 - Jul 7, 18:45 UTCJul 7, 20:40 UTC1h 55m
2026-07-07 FFT4173 - Jul 7, 18:00 UTCJul 7, 18:05 UTC5m
2026-07-07 FFT2298 ATL → PHL Jul 7, 15:30 UTCJul 7, 17:00 UTC1h 30m
2026-07-07 FFT2551 PHL → ATL Jul 7, 11:55 UTCJul 7, 13:35 UTC1h 40m
2026-07-07 FFT2551 PHL → PHL Jul 7, 11:25 UTCJul 7, 11:30 UTC5m
2026-07-07 FFT1204 - Jul 7, 04:40 UTCJul 7, 07:15 UTC2h 35m
2026-07-06 FFT1203 - Jul 6, 23:55 UTCJul 7, 02:50 UTC2h 55m
2026-07-06 FFT1203 PHL → PHL Jul 6, 23:10 UTCJul 6, 23:45 UTC35m
2026-07-06 FFT90 CUN → PHL Jul 6, 16:35 UTCJul 6, 19:35 UTC3h 0m
2026-07-06 FFT90 CUN → PHL Jul 6, 16:05 UTCJul 6, 19:34 UTC3h 29m
2026-07-06 FFT91 PHL → CUN Jul 6, 10:45 UTCJul 6, 14:05 UTC3h 20m
2026-07-05 FFT9517 - Jul 5, 22:50 UTCJul 5, 23:35 UTC45m
2026-07-05 FFT9517 ISP → PHL Jul 5, 22:47 UTCJul 5, 23:34 UTC47m
2026-07-05 FFT1682 - Jul 5, 19:30 UTCJul 5, 20:40 UTC1h 10m
2026-07-05 FFT3271 - Jul 5, 15:50 UTCJul 5, 16:45 UTC55m
2026-07-05 FFT2506 MCO → PHL Jul 5, 10:30 UTCJul 5, 12:25 UTC1h 55m
2026-07-04 FFT2287 - Jul 4, 01:40 UTCJul 4, 03:15 UTC1h 35m
2026-07-03 FFT2288 MCO → ORF Jul 3, 22:40 UTCJul 4, 00:10 UTC1h 30m
2026-07-01 FFT1750 - Jul 1, 01:50 UTCJul 1, 03:30 UTC1h 40m
2026-06-30 FFT3221 RSW → CVG Jun 30, 22:35 UTCJul 1, 00:40 UTC2h 5m
2026-06-30 FFT1318 CVG → RSW Jun 30, 19:00 UTCJun 30, 21:00 UTC2h 0m
2026-06-30 FFT1565 MCO → CVG Jun 30, 15:35 UTCJun 30, 17:20 UTC1h 45m
2026-06-30 FFT1540 - Jun 30, 02:25 UTCJun 30, 04:20 UTC1h 55m
2026-06-29 FFT4837 - Jun 29, 22:49 UTCJun 30, 00:45 UTC1h 55m
2026-06-29 FFT4837 MCO → IND Jun 29, 21:28 UTCJun 30, 00:45 UTC3h 17m

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 4h ago.
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.