Apparatus

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sensors Mode-S transponder

A865C8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N640FR · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A865C8
Octal
52062710
Decimal
11,036,104
Country
US
Tail
N640FR
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
508
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A865C8.

Country allocation

The ICAO 24-bit address A865C8 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
FFT4732 - 6 2026-06-21
FFT4731 - 6 2026-06-21
FFT1448 - 6 2026-07-10
FFT1111 - 6 2026-06-16
FFT4707 Frontier Airlines 5 2026-05-17
FFT2529 Frontier Airlines 5 2026-07-08
FFT6 - 4 2026-06-05
FFT4891 Frontier Airlines 4 2026-06-09
FFT4316 - 4 2026-06-22
FFT4145 - 4 2026-07-09
FFT3287 Frontier Airlines 4 2026-05-20
FFT3071 Frontier Airlines 4 2026-06-02
FFT3067 Frontier Airlines 4 2026-06-08
FFT1404 Frontier Airlines 4 2026-06-07
FFT1055 - 4 2026-06-25
FFT4949 Frontier Airlines 3 2026-07-08
FFT4712 - 3 2026-07-11
FFT4593 - 3 2026-07-10
FFT4473 Frontier Airlines 3 2026-06-05
FFT4409 Frontier Airlines 3 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT25 ATL → ATL Jul 14, 15:25 UTCJul 14, 23:35 UTC8h 9m
2026-07-14 FFT2428 LAS → ATL Jul 14, 08:00 UTCJul 14, 11:35 UTC3h 35m
2026-07-14 FFT2334 LAX → LAS Jul 14, 05:00 UTCJul 14, 05:50 UTC50m
2026-07-14 FFT2333 LAS → LAX Jul 14, 02:55 UTCJul 14, 03:40 UTC45m
2026-07-13 FFT3777 BNA → LAS Jul 13, 21:05 UTCJul 14, 00:20 UTC3h 15m
2026-07-13 FFT3777 BNA → LAS Jul 13, 20:53 UTCJul 14, 00:20 UTC3h 27m
2026-07-13 FFT3778 LAS → BNA Jul 13, 16:15 UTCJul 13, 19:45 UTC3h 30m
2026-07-13 FFT1184 - Jul 13, 13:40 UTCJul 13, 14:30 UTC50m
2026-07-13 FFT2445 - Jul 13, 03:10 UTCJul 13, 06:35 UTC3h 25m
2026-07-13 FFT2445 ORD → LAX Jul 13, 02:28 UTCJul 13, 06:40 UTC4h 12m
2026-07-12 FFT1595 ATL → ORD Jul 12, 23:40 UTCJul 13, 01:15 UTC1h 35m
2026-07-12 FFT1442 - Jul 12, 19:10 UTCJul 12, 20:40 UTC1h 30m
2026-07-12 FFT2206 - Jul 12, 13:50 UTCJul 12, 16:35 UTC2h 45m
2026-07-12 FFT3017 - Jul 12, 11:45 UTCJul 12, 12:15 UTC30m
2026-07-12 FFT3017 - Jul 12, 10:05 UTCJul 12, 10:20 UTC15m
2026-07-12 FFT3004 - Jul 12, 01:55 UTCJul 12, 05:10 UTC3h 15m
2026-07-12 FFT3004 CLT → SJU Jul 12, 01:53 UTCJul 12, 05:03 UTC3h 10m
2026-07-11 FFT3003 - Jul 11, 22:45 UTCJul 12, 00:01 UTC1h 15m
2026-07-11 FFT3003 - Jul 11, 20:55 UTCJul 11, 21:10 UTC15m
2026-07-11 FFT3003 SJU → CLT Jul 11, 20:38 UTCJul 12, 00:00 UTC3h 22m
2026-07-11 FFT2082 ATL → SJU Jul 11, 14:55 UTCJul 11, 18:20 UTC3h 25m
2026-07-11 FFT2633 - Jul 11, 10:50 UTCJul 11, 12:15 UTC1h 25m
2026-07-11 FFT4712 ATL → BWI Jul 11, 01:40 UTCJul 11, 03:05 UTC1h 25m
2026-07-10 FFT4712 - Jul 10, 22:45 UTCJul 10, 23:30 UTC45m
2026-07-10 FFT1550 - Jul 10, 20:45 UTCJul 10, 21:30 UTC45m
2026-07-10 FFT3600 DEN → ATL Jul 10, 16:15 UTCJul 10, 18:55 UTC2h 40m
2026-07-10 FFT1449 ATL → DEN Jul 10, 11:50 UTCJul 10, 14:30 UTC2h 40m
2026-07-10 FFT1448 HAF → ATL Jul 10, 06:10 UTCJul 10, 10:20 UTC4h 10m
2026-07-10 FFT4593 - Jul 10, 03:40 UTCJul 10, 04:45 UTC1h 5m
2026-07-09 FFT4145 MCO → LAX Jul 9, 20:30 UTCJul 10, 01:20 UTC4h 50m
2026-07-09 FFT1286 - Jul 9, 16:15 UTCJul 9, 17:40 UTC1h 25m
2026-07-09 FFT1285 MCO → BNA Jul 9, 13:05 UTCJul 9, 14:40 UTC1h 35m
2026-07-09 FFT2287 - Jul 9, 02:05 UTCJul 9, 04:00 UTC1h 55m
2026-07-08 FFT2288 - Jul 8, 23:15 UTCJul 9, 00:50 UTC1h 35m
2026-07-08 FFT2288 MCO → ORF Jul 8, 22:42 UTCJul 9, 00:47 UTC2h 5m
2026-07-08 FFT3663 - Jul 8, 19:45 UTCJul 8, 21:35 UTC1h 50m
2026-07-08 FFT1516 - Jul 8, 16:55 UTCJul 8, 17:55 UTC1h 0m
2026-07-08 FFT2529 MCO → DTW Jul 8, 13:35 UTCJul 8, 15:40 UTC2h 5m
2026-07-08 FFT2529 MCO → DTW Jul 8, 13:35 UTCJul 8, 15:37 UTC2h 2m
2026-07-08 FFT1086 PHX → MCO Jul 8, 07:30 UTCJul 8, 11:20 UTC3h 50m
2026-07-08 FFT4949 SLC → PHX Jul 8, 03:20 UTCJul 8, 04:35 UTC1h 15m
2026-07-08 FFT3394 SFO → SLC Jul 8, 00:30 UTCJul 8, 01:45 UTC1h 15m
2026-07-08 FFT3394 SFO → SLC Jul 8, 00:24 UTCJul 8, 01:43 UTC1h 19m
2026-07-07 FFT1191 PHX → SFO Jul 7, 21:10 UTCJul 7, 22:50 UTC1h 40m
2026-07-07 FFT1703 - Jul 7, 17:15 UTCJul 7, 19:20 UTC2h 5m
2026-07-07 FFT1957 - Jul 7, 13:15 UTCJul 7, 15:40 UTC2h 25m
2026-07-07 FFT4392 PHX → DTW Jul 7, 07:30 UTCJul 7, 11:00 UTC3h 30m
2026-07-07 FFT1896 LAS → PHX Jul 7, 04:55 UTCJul 7, 05:40 UTC45m
2026-07-07 FFT2017 STL → LAS Jul 7, 00:10 UTCJul 7, 03:05 UTC2h 55m
2026-07-06 FFT3108 LAS → STL Jul 6, 20:00 UTCJul 6, 22:50 UTC2h 50m

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 N640FR page for operator, model, and routing details .

Mode-S A865C8 frequently asked

What is Mode-S code A865C8?
A865C8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N640FR.
Where is Mode-S A865C8 registered?
Mode-S code A865C8 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 A865C8 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A865C8, octal 52062710, decimal 11,036,104.
What flights does A865C8 operate?
Mode-S A865C8 has broadcast 20 distinct callsigns, including FFT4732, FFT4731, FFT1448, FFT1111, FFT4707.