Apparatus

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sensors Mode-S transponder

A41090

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N361FR · AIRBUS A-320neo · operated by BANK OF UTAH TRUSTEE

Hex
A41090
Octal
51010220
Decimal
10,752,144
Country
US
Tail
N361FR
Type
A20N
Broadcasting now · callsign FFT1258 · 35,000 ft
Flights observed
429
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A41090 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A41090 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
FFT2547 Frontier Airlines 5 2026-05-01
FFT1477 Frontier Airlines 5 2026-04-27
FFT1267 Frontier Airlines 5 2026-05-19
FFT4112 Frontier Airlines 4 2026-04-30
FFT3942 - 4 2026-07-03
FFT3523 Frontier Airlines 4 2026-04-27
FFT3512 Frontier Airlines 4 2026-06-11
FFT3019 Frontier Airlines 4 2026-05-22
FFT2273 Frontier Airlines 4 2026-04-15
FFT1823 - 4 2026-07-03
FFT1750 - 4 2026-06-24
FFT1611 Frontier Airlines 4 2026-07-05
FFT4837 - 3 2026-07-02
FFT4726 - 3 2026-07-03
FFT4602 - 3 2026-07-01
FFT4406 Frontier Airlines 3 2026-06-16
FFT4239 Frontier Airlines 3 2026-04-30
FFT4190 Frontier Airlines 3 2026-07-05
FFT4130 Frontier Airlines 3 2026-06-08
FFT4082 Frontier Airlines 3 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT7738 - Jul 14, 04:10 UTCJul 14, 05:00 UTC50m
2026-07-14 FFT3582 - Jul 14, 02:00 UTCJul 14, 03:10 UTC1h 10m
2026-07-13 FFT4401 LAS → SFO Jul 13, 23:50 UTCJul 14, 01:00 UTC1h 10m
2026-07-13 FFT9531 - Jul 13, 21:05 UTCJul 13, 21:55 UTC50m
2026-07-13 FFT9531 ONT → LAS Jul 13, 20:43 UTCJul 13, 21:46 UTC1h 3m
2026-07-13 FFT1283 LAS → ONT Jul 13, 19:10 UTCJul 13, 19:50 UTC40m
2026-07-13 FFT1257 TPA → LAS Jul 13, 06:10 UTCJul 13, 10:15 UTC4h 5m
2026-07-13 FFT3054 ATL → TPA Jul 13, 00:01 UTCJul 13, 01:05 UTC1h 5m
2026-07-12 FFT2723 TPA → ATL Jul 12, 21:00 UTCJul 12, 22:25 UTC1h 25m
2026-07-12 FFT2723 TPA → ATL Jul 12, 20:58 UTCJul 12, 22:21 UTC1h 23m
2026-07-12 FFT123 - Jul 12, 16:40 UTCJul 12, 18:01 UTC1h 20m
2026-07-12 FFT123 SDQ → TPA Jul 12, 16:16 UTCJul 12, 18:40 UTC2h 24m
2026-07-12 FFT122 - Jul 12, 12:15 UTCJul 12, 13:05 UTC50m
2026-07-12 FFT122 TPA → SDQ Jul 12, 12:12 UTCJul 12, 14:37 UTC2h 25m
2026-07-11 FFT1689 - Jul 11, 20:50 UTCJul 11, 23:05 UTC2h 15m
2026-07-11 FFT1690 TPA → TTN Jul 11, 17:05 UTCJul 11, 19:15 UTC2h 10m
2026-07-11 FFT4807 PHL → TPA Jul 11, 13:00 UTCJul 11, 15:05 UTC2h 5m
2026-07-11 FFT2508 MCO → PHL Jul 11, 03:40 UTCJul 11, 05:35 UTC1h 55m
2026-07-11 FFT1785 - Jul 11, 00:25 UTCJul 11, 01:45 UTC1h 20m
2026-07-10 FFT1234 MCO → RDU Jul 10, 21:20 UTCJul 10, 23:05 UTC1h 45m
2026-07-10 FFT1432 MSY → MCO Jul 10, 17:40 UTCJul 10, 19:05 UTC1h 25m
2026-07-10 FFT1432 MSY → MCO Jul 10, 17:45 UTCJul 10, 19:04 UTC1h 19m
2026-07-10 FFT3553 MCO → MSY Jul 10, 15:00 UTCJul 10, 16:25 UTC1h 25m
2026-07-10 FFT1612 CMH → MCO Jul 10, 00:55 UTCJul 10, 02:45 UTC1h 50m
2026-07-10 FFT1612 CMH → MCO Jul 10, 01:09 UTCJul 10, 02:40 UTC1h 31m
2026-07-09 FFT2757 MCO → CMH Jul 9, 22:10 UTCJul 9, 23:55 UTC1h 45m
2026-07-09 FFT4018 DFW → MCO Jul 9, 17:30 UTCJul 9, 19:45 UTC2h 15m
2026-07-09 FFT2885 MCO → DFW Jul 9, 13:10 UTCJul 9, 15:35 UTC2h 25m
2026-07-07 FFT1785 - Jul 7, 15:15 UTCJul 7, 16:30 UTC1h 15m
2026-07-06 FFT1234 MCO → RDU Jul 6, 22:25 UTCJul 7, 00:45 UTC2h 20m
2026-07-06 FFT1654 - Jul 6, 15:10 UTCJul 6, 17:30 UTC2h 20m
2026-07-06 FFT1653 MCO → SAT Jul 6, 11:13 UTCJul 6, 13:28 UTC2h 15m
2026-07-06 FFT1653 - Jul 6, 11:05 UTCJul 6, 13:30 UTC2h 25m
2026-07-06 FFT2520 - Jul 6, 06:05 UTCJul 6, 09:05 UTC3h 0m
2026-07-06 FFT3311 - Jul 6, 01:00 UTCJul 6, 04:15 UTC3h 15m
2026-07-05 FFT3767 - Jul 5, 21:30 UTCJul 5, 23:20 UTC1h 50m
2026-07-05 FFT3768 MCO → RIC Jul 5, 18:20 UTCJul 5, 19:55 UTC1h 35m
2026-07-05 FFT3768 MCO → RIC Jul 5, 18:04 UTCJul 5, 19:54 UTC1h 50m
2026-07-05 FFT4190 CMH → MCO Jul 5, 14:25 UTCJul 5, 16:15 UTC1h 50m
2026-07-05 FFT4190 CMH → MCO Jul 5, 14:38 UTCJul 5, 16:11 UTC1h 33m
2026-07-05 FFT1611 BDL → RDU Jul 5, 11:28 UTCJul 5, 13:10 UTC1h 42m
2026-07-05 FFT1611 BDL → RDU Jul 5, 11:20 UTCJul 5, 13:10 UTC1h 50m
2026-07-04 FFT186 - Jul 4, 21:05 UTCJul 4, 23:30 UTC2h 25m
2026-07-04 FFT187 - Jul 4, 19:40 UTCJul 4, 19:50 UTC10m
2026-07-04 FFT187 - Jul 4, 17:35 UTCJul 4, 19:10 UTC1h 35m
2026-07-04 FFT1056 - Jul 4, 13:05 UTCJul 4, 15:00 UTC1h 55m
2026-07-04 FFT1915 MCO → CLE Jul 4, 09:20 UTCJul 4, 11:25 UTC2h 5m
2026-07-04 FFT2615 LGA → MCO Jul 4, 00:55 UTCJul 4, 03:15 UTC2h 20m
2026-07-03 FFT3134 - Jul 3, 21:55 UTCJul 3, 23:10 UTC1h 15m
2026-07-03 FFT2452 - Jul 3, 18:45 UTCJul 3, 20:00 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 N361FR page for operator, model, and routing details .

Mode-S A41090 frequently asked

What is Mode-S code A41090?
A41090 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N361FR.
Where is Mode-S A41090 registered?
Mode-S code A41090 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 A41090 broadcasting right now?
Yes. Mode-S A41090 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A41090, octal 51010220, decimal 10,752,144.
What flights does A41090 operate?
Mode-S A41090 has broadcast 20 distinct callsigns, including FFT2547, FFT1477, FFT1267, FFT4112, FFT3942.