Apparatus

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sensors Mode-S transponder

A43BC6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N372FR · AIRBUS A-320neo · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A43BC6
Octal
51035706
Decimal
10,763,206
Country
US
Tail
N372FR
Type
A20N
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
535
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A43BC6.

Country allocation

The ICAO 24-bit address A43BC6 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
FFT2410 - 11 2026-07-17
FFT3053 Frontier Airlines 10 2026-07-21
FFT2467 Frontier Airlines 9 2026-07-18
FFT1689 Frontier Airlines 9 2026-07-20
FFT4092 Frontier Airlines 8 2026-07-25
FFT4091 Frontier Airlines 8 2026-05-29
FFT3073 - 8 2026-07-17
FFT3782 Frontier Airlines 7 2026-07-26
FFT3071 - 7 2026-06-16
FFT3054 Frontier Airlines 7 2026-07-21
FFT2912 Frontier Airlines 7 2026-07-25
FFT2746 - 7 2026-07-01
FFT1690 - 7 2026-07-20
FFT4435 Frontier Airlines 6 2026-07-25
FFT3074 - 6 2026-07-17
FFT2779 - 6 2026-07-18
FFT2745 - 6 2026-07-01
FFT1853 Frontier Airlines 6 2026-07-26
FFT1491 Frontier Airlines 6 2026-07-17
FFT1258 Frontier Airlines 6 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT1003 PHL → ATL Jul 26, 21:10 UTCJul 26, 21:30 UTC20m
2026-07-26 FFT2538 TPA → PHL Jul 26, 17:20 UTCJul 26, 19:30 UTC2h 10m
2026-07-26 FFT3782 DTW → ATL Jul 26, 14:35 UTCJul 26, 15:40 UTC1h 5m
2026-07-26 FFT1853 TPA → ATL Jul 26, 11:40 UTCJul 26, 12:45 UTC1h 5m
2026-07-26 FFT1853 TPA → ATL Jul 26, 11:37 UTCJul 26, 12:44 UTC1h 7m
2026-07-26 FFT3371 RDU → TPA Jul 26, 02:25 UTCJul 26, 03:50 UTC1h 25m
2026-07-26 FFT3372 TPA → ORF Jul 26, 00:00 UTCJul 26, 01:20 UTC1h 20m
2026-07-25 FFT2912 ATL → TPA Jul 25, 20:45 UTCJul 25, 21:50 UTC1h 5m
2026-07-25 FFT4435 TPA → ATL Jul 25, 17:40 UTCJul 25, 18:55 UTC1h 15m
2026-07-25 FFT1537 BWI → TPA Jul 25, 14:00 UTCJul 25, 16:20 UTC2h 20m
2026-07-25 FFT4092 TPA → BWI Jul 25, 10:50 UTCJul 25, 12:50 UTC2h 0m
2026-07-25 FFT2912 ATL → TPA Jul 25, 00:10 UTCJul 25, 01:25 UTC1h 15m
2026-07-24 FFT4435 TPA → ATL Jul 24, 21:50 UTCJul 24, 23:00 UTC1h 10m
2026-07-24 FFT1668 MCO → LGA Jul 24, 15:05 UTCJul 24, 16:45 UTC1h 40m
2026-07-24 FFT1668 MCO → LGA Jul 24, 15:15 UTCJul 24, 16:43 UTC1h 28m
2026-07-24 FFT1303 PHL → BNA Jul 24, 11:45 UTCJul 24, 13:30 UTC1h 45m
2026-07-24 FFT1258 LAS → TPA Jul 24, 05:50 UTCJul 24, 09:50 UTC4h 0m
2026-07-24 FFT3738 SNA → LAS Jul 24, 03:50 UTCJul 24, 04:35 UTC45m
2026-07-24 FFT3582 SFO → SNA Jul 24, 01:20 UTCJul 24, 02:30 UTC1h 10m
2026-07-23 FFT4401 LAS → SFO Jul 23, 22:50 UTCJul 24, 00:05 UTC1h 15m
2026-07-23 FFT3292 LAX → LAS Jul 23, 19:25 UTCJul 23, 20:15 UTC50m
2026-07-23 FFT4129 SLC → LAX Jul 23, 16:25 UTCJul 23, 17:50 UTC1h 25m
2026-07-23 FFT3016 LAS → SLC Jul 23, 14:10 UTCJul 23, 15:10 UTC1h 0m
2026-07-22 FFT2575 SLC → LAS Jul 22, 20:05 UTCJul 22, 20:55 UTC50m
2026-07-22 FFT1268 LAX → SLC Jul 22, 17:35 UTCJul 22, 18:55 UTC1h 20m
2026-07-22 FFT1268 LAX → SLC Jul 22, 17:22 UTCJul 22, 18:53 UTC1h 31m
2026-07-22 FFT3291 LAS → LAX Jul 22, 15:35 UTCJul 22, 16:15 UTC40m
2026-07-22 FFT1257 TPA → LAS Jul 22, 02:50 UTCJul 22, 05:25 UTC2h 35m
2026-07-21 FFT3054 ATL → TPA Jul 21, 23:50 UTCJul 22, 00:50 UTC1h 0m
2026-07-21 FFT3053 TPA → ATL Jul 21, 21:10 UTCJul 21, 22:15 UTC1h 5m
2026-07-21 FFT3053 TPA → ATL Jul 21, 20:58 UTCJul 21, 22:08 UTC1h 10m
2026-07-21 FFT123 TPA → TPA Jul 21, 12:20 UTCJul 21, 18:55 UTC6h 35m
2026-07-20 FFT1689 PWM → RDU Jul 20, 22:20 UTCJul 21, 00:45 UTC2h 24m
2026-07-20 FFT1690 TPA → TTN Jul 20, 17:40 UTCJul 20, 20:00 UTC2h 20m
2026-07-20 FFT3782 DTW → ATL Jul 20, 15:00 UTCJul 20, 16:10 UTC1h 10m
2026-07-19 FFT1263 DTW → ATL Jul 19, 10:20 UTCJul 19, 11:40 UTC1h 20m
2026-07-19 FFT1264 ATL → DTW Jul 19, 04:15 UTCJul 19, 05:40 UTC1h 25m
2026-07-18 FFT2144 - Jul 18, 18:35 UTCJul 18, 20:00 UTC1h 25m
2026-07-18 FFT2779 ATL → MDW Jul 18, 15:05 UTCJul 18, 16:25 UTC1h 20m
2026-07-18 FFT2467 CLE → ATL Jul 18, 10:50 UTCJul 18, 12:05 UTC1h 15m
2026-07-18 FFT2184 TPA → CLE Jul 18, 02:40 UTCJul 18, 04:45 UTC2h 6m
2026-07-17 FFT1491 CLE → TPA Jul 17, 23:10 UTCJul 18, 01:20 UTC2h 10m
2026-07-17 FFT1491 CLE → TPA Jul 17, 22:52 UTCJul 18, 01:13 UTC2h 21m
2026-07-17 FFT3073 RDU → CLE Jul 17, 20:29 UTCJul 17, 21:39 UTC1h 10m
2026-07-17 FFT3074 - Jul 17, 18:05 UTCJul 17, 19:05 UTC1h 0m
2026-07-17 FFT2410 ATL → CLE Jul 17, 15:10 UTCJul 17, 16:34 UTC1h 25m
2026-07-17 FFT2467 CLE → ATL Jul 17, 10:50 UTCJul 17, 12:10 UTC1h 20m
2026-07-17 FFT2184 TPA → CLE Jul 17, 01:55 UTCJul 17, 03:59 UTC2h 5m
2026-07-16 FFT1491 CLE → TPA Jul 16, 22:25 UTCJul 17, 00:35 UTC2h 10m
2026-07-16 FFT4118 - Jul 16, 19:40 UTCJul 16, 20:55 UTC1h 15m

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 N372FR page for operator, model, and routing details .

Mode-S A43BC6 frequently asked

What is Mode-S code A43BC6?
A43BC6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N372FR.
Where is Mode-S A43BC6 registered?
Mode-S code A43BC6 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 A43BC6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A43BC6, octal 51035706, decimal 10,763,206.
What flights does A43BC6 operate?
Mode-S A43BC6 has broadcast 20 distinct callsigns, including FFT2410, FFT3053, FFT2467, FFT1689, FFT4092.