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 Jul 26, 22:00 UTC
Flights observed
580
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

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
FFT1448 Frontier Airlines 7 2026-07-25
FFT4732 - 6 2026-06-21
FFT4731 - 6 2026-06-21
FFT1111 - 6 2026-06-16
FFT4707 Frontier Airlines 5 2026-05-17
FFT4145 Frontier Airlines 5 2026-07-24
FFT3287 Frontier Airlines 5 2026-07-26
FFT2529 Frontier Airlines 5 2026-07-08
FFT86 Frontier Airlines 4 2026-07-22
FFT6 - 4 2026-06-05
FFT4891 Frontier Airlines 4 2026-06-09
FFT4593 Frontier Airlines 4 2026-07-25
FFT45 Frontier Airlines 4 2026-07-22
FFT4316 - 4 2026-06-22
FFT3599 - 4 2026-07-15
FFT3288 Frontier Airlines 4 2026-07-26
FFT3071 Frontier Airlines 4 2026-06-02
FFT3068 - 4 2026-07-15
FFT3067 Frontier Airlines 4 2026-06-08
FFT2868 Frontier Airlines 4 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT1101 PHL → ATL Jul 26, 21:45 UTCJul 26, 22:00 UTC15m
2026-07-26 FFT2298 ATL → PHL Jul 26, 18:20 UTCJul 26, 20:00 UTC1h 40m
2026-07-26 FFT2298 ATL → PHL Jul 26, 18:11 UTCJul 26, 19:55 UTC1h 44m
2026-07-26 FFT3287 LGA → ATL Jul 26, 10:45 UTCJul 26, 12:25 UTC1h 40m
2026-07-26 FFT3288 ATL → LGA Jul 26, 02:10 UTCJul 26, 03:50 UTC1h 40m
2026-07-25 FFT152 CUN → ATL Jul 25, 21:15 UTCJul 25, 23:15 UTC2h 0m
2026-07-25 FFT153 ATL → CUN Jul 25, 16:20 UTCJul 25, 18:30 UTC2h 10m
2026-07-25 FFT1448 SFO → ATL Jul 25, 06:45 UTCJul 25, 10:55 UTC4h 10m
2026-07-25 FFT4593 LAX → SFO Jul 25, 03:20 UTCJul 25, 04:15 UTC55m
2026-07-24 FFT4145 MCO → LAX Jul 24, 19:55 UTCJul 25, 00:20 UTC4h 25m
2026-07-24 FFT1286 JAX → PHL Jul 24, 16:35 UTCJul 24, 17:55 UTC1h 20m
2026-07-24 FFT1285 PHL → JAX Jul 24, 13:25 UTCJul 24, 15:00 UTC1h 35m
2026-07-24 FFT1745 CLE → LAS Jul 24, 01:10 UTCJul 24, 03:35 UTC2h 25m
2026-07-23 FFT2868 MCO → SJU Jul 23, 23:20 UTCJul 23, 23:45 UTC25m
2026-07-23 FFT2868 MCO → SJU Jul 23, 21:10 UTCJul 23, 21:50 UTC40m
2026-07-23 FFT4725 SJU → MCO Jul 23, 18:35 UTCJul 23, 19:20 UTC45m
2026-07-23 FFT4725 SJU → MCO Jul 23, 16:55 UTCJul 23, 17:10 UTC15m
2026-07-23 FFT2250 ATL → BDL Jul 23, 14:50 UTCJul 23, 15:25 UTC35m
2026-07-23 FFT2250 ATL → BDL Jul 23, 12:40 UTCJul 23, 13:20 UTC40m
2026-07-23 FFT2250 ATL → BDL Jul 23, 12:22 UTCJul 23, 15:13 UTC2h 51m
2026-07-23 FFT1953 - Jul 23, 03:30 UTCJul 23, 11:00 UTC7h 30m
2026-07-22 FFT3044 ORD → MCO Jul 22, 22:45 UTCJul 23, 00:50 UTC2h 5m
2026-07-22 FFT45 CUN → ORD Jul 22, 16:35 UTCJul 22, 20:15 UTC3h 40m
2026-07-22 FFT86 DEN → SJO Jul 22, 11:50 UTCJul 22, 14:55 UTC3h 5m
2026-07-22 FFT2635 MCO → STL Jul 22, 02:43 UTCJul 22, 04:43 UTC2h 0m
2026-07-22 FFT2635 MCO → STL Jul 22, 02:45 UTCJul 22, 04:45 UTC2h 0m
2026-07-21 FFT3044 ORD → MCO Jul 21, 22:45 UTCJul 22, 01:10 UTC2h 25m
2026-07-21 FFT45 CUN → ORD Jul 21, 16:20 UTCJul 21, 20:00 UTC3h 40m
2026-07-21 FFT45 CUN → ORD Jul 21, 16:15 UTCJul 21, 19:57 UTC3h 42m
2026-07-21 FFT86 DEN → SJO Jul 21, 12:05 UTCJul 21, 14:55 UTC2h 50m
2026-07-21 FFT2635 MCO → STL Jul 21, 03:40 UTCJul 21, 05:40 UTC2h 0m
2026-07-21 FFT3819 PIT → MCO Jul 21, 00:10 UTCJul 21, 02:05 UTC1h 55m
2026-07-20 FFT1620 MCO → PIT Jul 20, 20:30 UTCJul 20, 22:40 UTC2h 10m
2026-07-20 FFT1620 MCO → PIT Jul 20, 19:51 UTCJul 20, 22:37 UTC2h 46m
2026-07-20 FFT1445 CLT → MCO Jul 20, 16:45 UTCJul 20, 17:50 UTC1h 5m
2026-07-20 FFT1445 CLT → MCO Jul 20, 16:37 UTCJul 20, 17:50 UTC1h 13m
2026-07-20 FFT1446 MCO → CLT Jul 20, 14:00 UTCJul 20, 15:15 UTC1h 15m
2026-07-20 FFT1446 MCO → CLT Jul 20, 13:51 UTCJul 20, 15:14 UTC1h 23m
2026-07-20 FFT2668 CLE → MCO Jul 20, 10:20 UTCJul 20, 12:15 UTC1h 55m
2026-07-20 FFT2279 MCO → CLE Jul 20, 01:35 UTCJul 20, 03:30 UTC1h 55m
2026-07-19 FFT3554 MSY → MCO Jul 19, 22:20 UTCJul 19, 23:50 UTC1h 30m
2026-07-19 FFT1431 MCO → MSY Jul 19, 19:05 UTCJul 19, 20:40 UTC1h 35m
2026-07-19 FFT2867 - Jul 19, 15:00 UTCJul 19, 15:50 UTC50m
2026-07-19 FFT2867 - Jul 19, 13:20 UTCJul 19, 13:30 UTC10m
2026-07-19 FFT3506 MCO → SJU Jul 19, 09:05 UTCJul 19, 11:30 UTC2h 25m
2026-07-19 FFT2530 DTW → MCO Jul 19, 00:40 UTCJul 19, 03:00 UTC2h 20m
2026-07-18 FFT2713 MCO → DTW Jul 18, 21:20 UTCJul 18, 23:30 UTC2h 10m
2026-07-18 FFT34 SJO → MCO Jul 18, 16:00 UTCJul 18, 18:37 UTC2h 37m
2026-07-18 FFT34 SJO → MCO Jul 18, 16:00 UTCJul 18, 18:35 UTC2h 35m
2026-07-18 FFT35 MCO → SJO Jul 18, 11:45 UTCJul 18, 14:30 UTC2h 45m

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 Jul 26, 22:00 UTC.
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 FFT1448, FFT4732, FFT4731, FFT1111, FFT4707.