Apparatus

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sensors Mode-S transponder

A8C3A2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N664FR · AIRBUS A-321neo · operated by BANK OF UTAH INC TRUSTEE

Hex
A8C3A2
Octal
52141642
Decimal
11,060,130
Country
US
Tail
N664FR
Type
A21N
Broadcasting now · callsign FFT1408 · 3,775 ft
Flights observed
567
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:50 UTC

Current position

A8C3A2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A8C3A2 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
FFT3801 - 6 2026-06-29
FFT4712 - 5 2026-06-20
FFT4593 Frontier Airlines 5 2026-07-05
FFT4173 Frontier Airlines 5 2026-07-19
FFT4158 - 5 2026-06-24
FFT4048 - 5 2026-07-02
FFT3231 Frontier Airlines 5 2026-07-22
FFT2633 - 5 2026-06-20
FFT1342 - 5 2026-06-27
FFT4891 - 4 2026-07-06
FFT4410 - 4 2026-07-08
FFT4404 Frontier Airlines 4 2026-07-19
FFT4036 Frontier Airlines 4 2026-05-25
FFT3308 Frontier Airlines 4 2026-06-30
FFT3044 - 4 2026-06-27
FFT2959 - 4 2026-07-08
FFT2607 Frontier Airlines 4 2026-06-11
FFT2428 - 4 2026-06-26
FFT2415 Frontier Airlines 4 2026-07-19
FFT2350 Frontier Airlines 4 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT2871 SJU → ATL Jul 26, 21:35 UTCJul 26, 21:50 UTC15m
2026-07-26 FFT3018 LAS → SLC Jul 26, 19:45 UTCJul 26, 20:00 UTC15m
2026-07-26 FFT3018 LAS → SLC Jul 26, 17:45 UTCJul 26, 18:15 UTC30m
2026-07-26 FFT2205 ORD → FLL Jul 26, 13:35 UTCJul 26, 16:00 UTC2h 25m
2026-07-26 FFT2446 LAX → ORD Jul 26, 07:15 UTCJul 26, 10:55 UTC3h 40m
2026-07-26 FFT3316 SMF → LAX Jul 26, 01:35 UTCJul 26, 02:35 UTC1h 0m
2026-07-25 FFT3315 LAX → SMF Jul 25, 23:10 UTCJul 26, 00:10 UTC1h 0m
2026-07-25 FFT2263 ATL → TPA Jul 25, 21:05 UTCJul 25, 21:45 UTC40m
2026-07-25 FFT2263 ATL → TPA Jul 25, 20:56 UTCJul 25, 21:42 UTC46m
2026-07-25 FFT1051 DFW → LAS Jul 25, 17:20 UTCJul 25, 19:30 UTC2h 10m
2026-07-25 FFT3978 LAS → DFW Jul 25, 13:10 UTCJul 25, 15:45 UTC2h 35m
2026-07-25 FFT3521 CVG → LAS Jul 25, 07:05 UTCJul 25, 10:35 UTC3h 30m
2026-07-25 FFT3412 LAS → CVG Jul 25, 02:30 UTCJul 25, 05:45 UTC3h 15m
2026-07-25 FFT3412 LAS → CVG Jul 25, 02:13 UTCJul 25, 05:44 UTC3h 31m
2026-07-24 FFT1875 MCO → LAS Jul 24, 14:30 UTCJul 24, 18:35 UTC4h 5m
2026-07-24 FFT3273 BWI → MCO Jul 24, 10:50 UTCJul 24, 12:40 UTC1h 50m
2026-07-24 FFT2310 CHS → PHL Jul 24, 02:10 UTCJul 24, 04:10 UTC2h 0m
2026-07-23 FFT1728 LAS → MCO Jul 23, 20:15 UTCJul 24, 00:30 UTC4h 15m
2026-07-23 FFT1993 DEN → LAS Jul 23, 17:10 UTCJul 23, 18:35 UTC1h 25m
2026-07-23 FFT2350 LAS → DEN Jul 23, 13:05 UTCJul 23, 14:30 UTC1h 25m
2026-07-23 FFT2350 LAS → DEN Jul 23, 13:13 UTCJul 23, 14:29 UTC1h 16m
2026-07-23 FFT1821 CLE → LAS Jul 23, 00:25 UTCJul 23, 04:35 UTC4h 10m
2026-07-22 FFT3232 LAS → CLE Jul 22, 18:50 UTCJul 22, 22:15 UTC3h 25m
2026-07-22 FFT3231 CLE → LAS Jul 22, 13:25 UTCJul 22, 17:30 UTC4h 5m
2026-07-22 FFT1850 SFO → LAS Jul 22, 00:00 UTCJul 22, 01:20 UTC1h 20m
2026-07-21 FFT1850 SFO → LAS Jul 21, 23:43 UTCJul 22, 01:09 UTC1h 26m
2026-07-21 FFT4157 LAS → SFO Jul 21, 21:10 UTCJul 21, 22:30 UTC1h 20m
2026-07-21 FFT1875 - Jul 21, 14:45 UTCJul 21, 19:00 UTC4h 15m
2026-07-21 FFT3624 CVG → MCO Jul 21, 11:25 UTCJul 21, 13:05 UTC1h 40m
2026-07-21 FFT3624 CVG → MCO Jul 21, 11:30 UTCJul 21, 13:03 UTC1h 33m
2026-07-21 FFT1713 MCO → CVG Jul 21, 02:25 UTCJul 21, 04:10 UTC1h 45m
2026-07-21 FFT1713 MCO → CVG Jul 21, 02:13 UTCJul 21, 04:07 UTC1h 54m
2026-07-20 FFT3560 BNA → MCO Jul 20, 23:40 UTCJul 21, 01:00 UTC1h 20m
2026-07-20 FFT3559 MCO → BNA Jul 20, 19:35 UTCJul 20, 21:10 UTC1h 35m
2026-07-20 FFT1654 RDU → PVD Jul 20, 15:15 UTCJul 20, 17:40 UTC2h 25m
2026-07-20 FFT1653 PHL → RDU Jul 20, 11:13 UTCJul 20, 13:31 UTC2h 18m
2026-07-20 FFT1653 PHL → RDU Jul 20, 11:15 UTCJul 20, 13:35 UTC2h 20m
2026-07-20 FFT2505 PHL → MCO Jul 20, 02:25 UTCJul 20, 04:25 UTC2h 0m
2026-07-19 FFT4404 MCO → PHL Jul 19, 22:55 UTCJul 20, 00:55 UTC2h 0m
2026-07-19 FFT4173 MCO → CLE Jul 19, 17:20 UTCJul 19, 19:25 UTC2h 5m
2026-07-19 FFT1542 MCO → PHL Jul 19, 13:25 UTCJul 19, 15:30 UTC2h 5m
2026-07-19 FFT2415 CLE → PHX Jul 19, 09:45 UTCJul 19, 11:35 UTC1h 50m
2026-07-19 FFT2022 - Jul 19, 02:55 UTCJul 19, 04:05 UTC1h 10m
2026-07-18 FFT2008 - Jul 18, 14:15 UTCJul 18, 16:50 UTC2h 35m
2026-07-18 FFT2609 PHL → FLL Jul 18, 10:20 UTCJul 18, 12:40 UTC2h 20m
2026-07-18 FFT2072 - Jul 18, 01:45 UTCJul 18, 02:45 UTC1h 0m
2026-07-17 FFT1517 - Jul 17, 22:40 UTCJul 17, 23:39 UTC1h 0m
2026-07-17 FFT1517 - Jul 17, 22:15 UTCJul 17, 22:20 UTC5m
2026-07-17 FFT1517 PHL → RDU Jul 17, 22:19 UTCJul 17, 23:36 UTC1h 17m
2026-07-17 FFT2060 RDU → PHL Jul 17, 20:04 UTCJul 17, 21:05 UTC1h 0m

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 N664FR page for operator, model, and routing details .

Mode-S A8C3A2 frequently asked

What is Mode-S code A8C3A2?
A8C3A2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N664FR.
Where is Mode-S A8C3A2 registered?
Mode-S code A8C3A2 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 A8C3A2 broadcasting right now?
Yes. Mode-S A8C3A2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8C3A2, octal 52141642, decimal 11,060,130.
What flights does A8C3A2 operate?
Mode-S A8C3A2 has broadcast 20 distinct callsigns, including FFT3801, FFT4712, FFT4593, FFT4173, FFT4158.