Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8C759

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N665FR · AIRBUS A-321neo · operated by BANK OF UTAH TRUSTEE

Hex
A8C759
Octal
52143531
Decimal
11,061,081
Country
US
Tail
N665FR
Type
A21N
Broadcasting now · callsign FFT2350 · 17,125 ft
Flights observed
539
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Current position

A8C759 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A8C759 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
FFT4136 Frontier Airlines 7 2026-04-24
FFT2635 - 6 2026-07-20
FFT2338 - 6 2026-06-30
FFT86 Frontier Airlines 5 2026-07-20
FFT4732 Frontier Airlines 5 2026-05-14
FFT45 Frontier Airlines 5 2026-07-20
FFT2715 - 5 2026-06-30
FFT2250 Frontier Airlines 5 2026-06-06
FFT1670 - 5 2026-07-04
FFT1542 Frontier Airlines 5 2026-07-21
FFT1062 - 5 2026-07-11
FFT4173 Frontier Airlines 4 2026-07-25
FFT4135 Frontier Airlines 4 2026-06-15
FFT3972 - 4 2026-07-12
FFT3067 - 4 2026-06-21
FFT3044 - 4 2026-07-20
FFT3025 Frontier Airlines 4 2026-04-24
FFT2925 Frontier Airlines 4 2026-04-16
FFT2919 Frontier Airlines 4 2026-06-30
FFT2745 Frontier Airlines 4 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT4161 PHL → DFW Jul 26, 21:15 UTCJul 26, 22:15 UTC1h 0m
2026-07-26 FFT2022 LAS → CVG Jul 26, 18:30 UTCJul 26, 19:35 UTC1h 5m
2026-07-26 FFT2008 FLL → DTW Jul 26, 14:25 UTCJul 26, 16:55 UTC2h 30m
2026-07-26 FFT2609 PHL → FLL Jul 26, 10:45 UTCJul 26, 13:00 UTC2h 15m
2026-07-25 FFT4404 MCO → PHL Jul 25, 21:25 UTCJul 25, 23:20 UTC1h 55m
2026-07-25 FFT4173 MCO → CLE Jul 25, 17:30 UTCJul 25, 19:25 UTC1h 55m
2026-07-25 FFT2060 RDU → PHL Jul 25, 14:05 UTCJul 25, 15:00 UTC55m
2026-07-25 FFT2059 PHL → RDU Jul 25, 11:45 UTCJul 25, 12:45 UTC1h 0m
2026-07-25 FFT3340 DEN → PHL Jul 25, 06:15 UTCJul 25, 09:15 UTC3h 0m
2026-07-24 FFT3227 IAH → DEN Jul 24, 23:35 UTCJul 25, 01:30 UTC1h 55m
2026-07-24 FFT317 CUN → IAH Jul 24, 19:40 UTCJul 24, 21:25 UTC1h 45m
2026-07-24 FFT70 DEN → CUN Jul 24, 13:45 UTCJul 24, 17:15 UTC3h 30m
2026-07-24 FFT1483 ORD → DEN Jul 24, 04:15 UTCJul 24, 06:10 UTC1h 55m
2026-07-24 FFT3174 CLE → PHL Jul 24, 00:35 UTCJul 24, 02:25 UTC1h 50m
2026-07-23 FFT7017 CUN → DEN Jul 23, 17:30 UTCJul 23, 20:55 UTC3h 25m
2026-07-23 FFT9416 MCO → CUN Jul 23, 13:00 UTCJul 23, 14:30 UTC1h 30m
2026-07-23 FFT1876 LAS → MCO Jul 23, 05:10 UTCJul 23, 09:15 UTC4h 5m
2026-07-22 FFT3450 PHX → MDW Jul 22, 23:30 UTCJul 23, 03:35 UTC4h 5m
2026-07-22 FFT3626 RNO → LAS Jul 22, 20:20 UTCJul 22, 21:15 UTC55m
2026-07-22 FFT3625 RSW → CVG Jul 22, 17:55 UTCJul 22, 18:50 UTC55m
2026-07-22 FFT2145 PHL → LAS Jul 22, 12:45 UTCJul 22, 16:00 UTC3h 15m
2026-07-22 FFT2146 LAS → ORD Jul 22, 10:20 UTCJul 22, 11:25 UTC1h 5m
2026-07-22 FFT3417 SAT → LAS Jul 22, 02:45 UTCJul 22, 05:00 UTC2h 15m
2026-07-21 FFT3418 LAS → SAT Jul 21, 23:05 UTCJul 22, 01:30 UTC2h 25m
2026-07-21 FFT1601 PHL → MCO Jul 21, 15:55 UTCJul 21, 20:40 UTC4h 45m
2026-07-21 FFT1542 MCO → PHL Jul 21, 10:30 UTCJul 21, 12:30 UTC2h 0m
2026-07-20 FFT3044 - Jul 20, 22:45 UTCJul 21, 00:55 UTC2h 9m
2026-07-20 FFT45 CUN → ORD Jul 20, 16:20 UTCJul 20, 20:00 UTC3h 40m
2026-07-20 FFT86 DEN → SJO Jul 20, 11:30 UTCJul 20, 14:20 UTC2h 50m
2026-07-20 FFT2635 - Jul 20, 02:35 UTCJul 20, 04:35 UTC2h 0m
2026-07-19 FFT3044 - Jul 19, 22:30 UTCJul 20, 00:40 UTC2h 10m
2026-07-19 FFT45 CUN → ORD Jul 19, 16:10 UTCJul 19, 19:50 UTC3h 40m
2026-07-19 FFT45 CUN → ORD Jul 19, 16:15 UTCJul 19, 19:40 UTC3h 25m
2026-07-19 FFT86 DEN → SJO Jul 19, 11:45 UTCJul 19, 14:15 UTC2h 30m
2026-07-19 FFT86 DEN → SJO Jul 19, 11:46 UTCJul 19, 14:20 UTC2h 34m
2026-07-19 FFT2635 - Jul 19, 02:55 UTCJul 19, 04:50 UTC1h 55m
2026-07-18 FFT3044 ORD → MCO Jul 18, 23:10 UTCJul 19, 01:25 UTC2h 15m
2026-07-18 FFT45 CUN → ORD Jul 18, 16:40 UTCJul 18, 20:05 UTC3h 25m
2026-07-18 FFT86 DEN → SJO Jul 18, 11:50 UTCJul 18, 14:35 UTC2h 45m
2026-07-18 FFT2635 MCO → STL Jul 18, 04:15 UTCJul 18, 06:10 UTC1h 55m
2026-07-18 FFT2635 MCO → STL Jul 18, 04:13 UTCJul 18, 06:06 UTC1h 53m
2026-07-17 FFT1876 LAS → MCO Jul 17, 13:20 UTCJul 17, 17:50 UTC4h 30m
2026-07-17 FFT2017 STL → LAS Jul 17, 00:50 UTCJul 17, 03:34 UTC2h 45m
2026-07-17 FFT2017 STL → LAS Jul 17, 00:32 UTCJul 17, 03:38 UTC3h 6m
2026-07-16 FFT3108 LAS → STL Jul 16, 20:25 UTCJul 16, 23:20 UTC2h 55m
2026-07-16 FFT3108 LAS → STL Jul 16, 20:03 UTCJul 16, 23:15 UTC3h 12m
2026-07-16 FFT4277 IAD → LAS Jul 16, 14:40 UTCJul 16, 18:44 UTC4h 5m
2026-07-16 FFT4277 IAD → LAS Jul 16, 14:28 UTCJul 16, 18:42 UTC4h 14m
2026-07-16 FFT4278 LAS → IAD Jul 16, 07:50 UTCJul 16, 12:09 UTC4h 20m
2026-07-16 FFT4113 - Jul 16, 05:25 UTCJul 16, 06:10 UTC45m

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 N665FR page for operator, model, and routing details .

Mode-S A8C759 frequently asked

What is Mode-S code A8C759?
A8C759 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N665FR.
Where is Mode-S A8C759 registered?
Mode-S code A8C759 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 A8C759 broadcasting right now?
Yes. Mode-S A8C759 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8C759, octal 52143531, decimal 11,061,081.
What flights does A8C759 operate?
Mode-S A8C759 has broadcast 20 distinct callsigns, including FFT4136, FFT2635, FFT2338, FFT86, FFT4732.