Apparatus

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sensors Mode-S transponder

A42323

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N366FR · AIRBUS A-320neo · operated by BANK OF UTAH TRUSTEE

Hex
A42323
Octal
51021443
Decimal
10,756,899
Country
US
Tail
N366FR
Type
A20N
Transponder active on ground
Flights observed
428
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A42323.

Country allocation

The ICAO 24-bit address A42323 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
FFT2292 - 6 2026-07-09
FFT3871 - 5 2026-06-27
FFT3439 - 5 2026-06-26
FFT3037 Frontier Airlines 5 2026-05-25
FFT2291 - 5 2026-07-09
FFT3418 - 4 2026-07-01
FFT3376 Frontier Airlines 4 2026-05-04
FFT3014 - 4 2026-07-08
FFT1582 Frontier Airlines 4 2026-05-07
FFT1581 Frontier Airlines 4 2026-05-07
FFT4753 - 3 2026-06-28
FFT4578 - 3 2026-06-27
FFT4567 - 3 2026-06-22
FFT4406 Frontier Airlines 3 2026-05-24
FFT3566 - 3 2026-06-24
FFT3512 Frontier Airlines 3 2026-06-07
FFT3417 - 3 2026-07-02
FFT3302 - 3 2026-06-21
FFT3291 Frontier Airlines 3 2026-05-29
FFT3131 - 3 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT1491 - Jul 14, 00:40 UTCJul 14, 02:45 UTC2h 5m
2026-07-13 FFT3073 - Jul 13, 21:55 UTCJul 13, 22:55 UTC1h 0m
2026-07-13 FFT3074 - Jul 13, 19:40 UTCJul 13, 20:45 UTC1h 5m
2026-07-13 FFT3074 CLE → RDU Jul 13, 19:50 UTCJul 13, 20:43 UTC53m
2026-07-10 FFT2184 - Jul 10, 02:20 UTCJul 10, 04:15 UTC1h 55m
2026-07-09 FFT1491 CLE → TPA Jul 9, 22:55 UTCJul 10, 00:55 UTC2h 0m
2026-07-09 FFT4118 - Jul 9, 19:55 UTCJul 9, 21:10 UTC1h 15m
2026-07-09 FFT4118 MYR → CLE Jul 9, 19:45 UTCJul 9, 21:09 UTC1h 24m
2026-07-09 FFT4117 - Jul 9, 17:15 UTCJul 9, 18:30 UTC1h 15m
2026-07-09 FFT2410 ATL → CLE Jul 9, 14:30 UTCJul 9, 15:40 UTC1h 10m
2026-07-09 FFT2292 MDW → ATL Jul 9, 11:17 UTCJul 9, 12:44 UTC1h 27m
2026-07-09 FFT2292 MDW → ATL Jul 9, 11:20 UTCJul 9, 12:45 UTC1h 25m
2026-07-09 FFT2291 - Jul 9, 01:30 UTCJul 9, 02:50 UTC1h 20m
2026-07-08 FFT1123 - Jul 8, 21:50 UTCJul 8, 23:15 UTC1h 25m
2026-07-08 FFT3014 ATL → FLL Jul 8, 19:15 UTCJul 8, 20:40 UTC1h 25m
2026-07-08 FFT3014 ATL → FLL Jul 8, 19:09 UTCJul 8, 20:38 UTC1h 29m
2026-07-08 FFT4076 - Jul 8, 16:15 UTCJul 8, 17:45 UTC1h 30m
2026-07-08 FFT2399 - Jul 8, 13:00 UTCJul 8, 14:35 UTC1h 35m
2026-07-08 FFT4347 LGA → ATL Jul 8, 02:54 UTCJul 8, 04:43 UTC1h 49m
2026-07-08 FFT4347 LGA → ATL Jul 8, 02:55 UTCJul 8, 04:45 UTC1h 50m
2026-07-07 FFT3458 - Jul 7, 23:35 UTCJul 8, 01:30 UTC1h 55m
2026-07-07 FFT3458 ATL → LGA Jul 7, 23:10 UTCJul 8, 01:28 UTC2h 18m
2026-07-07 FFT2899 DTW → ATL Jul 7, 20:20 UTCJul 7, 21:50 UTC1h 30m
2026-07-07 FFT2898 ATL → DTW Jul 7, 17:25 UTCJul 7, 18:45 UTC1h 20m
2026-07-07 FFT2292 - Jul 7, 12:10 UTCJul 7, 12:45 UTC35m
2026-07-07 FFT2292 MDW → ATL Jul 7, 11:52 UTCJul 7, 13:41 UTC1h 49m
2026-07-07 FFT2291 ATL → MDW Jul 7, 02:40 UTCJul 7, 04:05 UTC1h 25m
2026-07-06 FFT2972 MSY → ATL Jul 6, 23:55 UTCJul 7, 01:00 UTC1h 5m
2026-07-06 FFT2972 MSY → ATL Jul 6, 23:44 UTCJul 7, 00:58 UTC1h 14m
2026-07-06 FFT1371 ATL → MSY Jul 6, 21:15 UTCJul 6, 22:25 UTC1h 10m
2026-07-06 FFT1846 PHX → DTW Jul 6, 17:20 UTCJul 6, 18:30 UTC1h 10m
2026-07-06 FFT4771 ATL → CVG Jul 6, 14:32 UTCJul 6, 15:33 UTC1h 1m
2026-07-06 FFT4771 - Jul 6, 14:35 UTCJul 6, 15:35 UTC1h 0m
2026-07-06 FFT1853 TPA → ATL Jul 6, 11:15 UTCJul 6, 12:25 UTC1h 10m
2026-07-06 FFT2746 DEN → TPA Jul 6, 06:10 UTCJul 6, 09:05 UTC2h 55m
2026-07-06 FFT2745 - Jul 6, 00:30 UTCJul 6, 03:50 UTC3h 20m
2026-07-05 FFT1689 - Jul 5, 20:55 UTCJul 5, 23:10 UTC2h 15m
2026-07-05 FFT1690 TPA → TTN Jul 5, 17:10 UTCJul 5, 19:20 UTC2h 10m
2026-07-05 FFT3782 ATL → TPA Jul 5, 14:50 UTCJul 5, 15:50 UTC1h 0m
2026-07-05 FFT1853 TPA → ATL Jul 5, 11:30 UTCJul 5, 12:35 UTC1h 5m
2026-07-05 FFT1853 TPA → ATL Jul 5, 11:12 UTCJul 5, 12:37 UTC1h 25m
2026-07-05 FFT3371 - Jul 5, 02:15 UTCJul 5, 03:35 UTC1h 20m
2026-07-04 FFT3372 - Jul 4, 23:20 UTCJul 5, 00:40 UTC1h 20m
2026-07-04 FFT2912 - Jul 4, 20:20 UTCJul 4, 21:25 UTC1h 5m
2026-07-04 FFT2912 ATL → TPA Jul 4, 20:20 UTCJul 4, 21:23 UTC1h 3m
2026-07-04 FFT4435 TPA → ATL Jul 4, 17:45 UTCJul 4, 18:50 UTC1h 5m
2026-07-04 FFT1537 BWI → TPA Jul 4, 14:30 UTCJul 4, 16:20 UTC1h 50m
2026-07-04 FFT4092 TPA → BWI Jul 4, 10:50 UTCJul 4, 12:45 UTC1h 55m
2026-07-04 FFT3371 - Jul 4, 02:50 UTCJul 4, 04:15 UTC1h 25m
2026-07-03 FFT3372 TPA → RDU Jul 3, 23:55 UTCJul 4, 01:20 UTC1h 25m

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 N366FR page for operator, model, and routing details .

Mode-S A42323 frequently asked

What is Mode-S code A42323?
A42323 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N366FR.
Where is Mode-S A42323 registered?
Mode-S code A42323 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 A42323 broadcasting right now?
Mode-S A42323 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A42323, octal 51021443, decimal 10,756,899.
What flights does A42323 operate?
Mode-S A42323 has broadcast 20 distinct callsigns, including FFT2292, FFT3871, FFT3439, FFT3037, FFT2291.