Apparatus

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sensors Mode-S transponder

A3E55A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N350FR · AIRBUS A-320neo · operated by UMB BANK NA TRUSTEE

Hex
A3E55A
Octal
50762532
Decimal
10,741,082
Country
US
Tail
N350FR
Type
A20N
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
612
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S A3E55A.

Country allocation

The ICAO 24-bit address A3E55A 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
FFT4401 - 7 2026-07-15
FFT3971 Frontier Airlines 6 2026-05-15
FFT3581 - 6 2026-07-13
FFT2532 Frontier Airlines 6 2026-05-15
FFT4964 - 5 2026-06-23
FFT4753 - 5 2026-06-24
FFT3862 Frontier Airlines 5 2026-06-07
FFT341 Frontier Airlines 5 2026-06-21
FFT3054 Frontier Airlines 5 2026-07-20
FFT2232 - 5 2026-07-15
FFT1874 - 5 2026-06-25
FFT1195 - 5 2026-07-15
FFT690 Frontier Airlines 4 2026-06-07
FFT685 Frontier Airlines 4 2026-06-08
FFT4602 Frontier Airlines 4 2026-07-22
FFT3999 - 4 2026-06-20
FFT340 Frontier Airlines 4 2026-06-21
FFT3366 Frontier Airlines 4 2026-06-08
FFT3021 - 4 2026-06-19
FFT2912 - 4 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT3262 MCO → BUF Jul 26, 18:35 UTCJul 26, 21:00 UTC2h 25m
2026-07-26 FFT2834 MKE → MCO Jul 26, 13:55 UTCJul 26, 16:00 UTC2h 5m
2026-07-26 FFT2833 MCO → MKE Jul 26, 10:05 UTCJul 26, 12:50 UTC2h 45m
2026-07-26 FFT4018 DFW → MCO Jul 26, 00:25 UTCJul 26, 02:35 UTC2h 10m
2026-07-25 FFT1481 MCO → DFW Jul 25, 20:35 UTCJul 25, 22:50 UTC2h 15m
2026-07-25 FFT363 SDF → DEN Jul 25, 12:05 UTCJul 25, 18:05 UTC6h 0m
2026-07-24 FFT2505 PHL → MCO Jul 24, 21:45 UTCJul 24, 23:40 UTC1h 55m
2026-07-24 FFT3480 JAX → PHL Jul 24, 18:25 UTCJul 24, 20:15 UTC1h 50m
2026-07-24 FFT2815 PHL → JAX Jul 24, 15:00 UTCJul 24, 16:40 UTC1h 40m
2026-07-24 FFT1102 ATL → PHL Jul 24, 02:15 UTCJul 24, 04:00 UTC1h 45m
2026-07-23 FFT2539 CMH → ATL Jul 23, 22:10 UTCJul 23, 23:15 UTC1h 5m
2026-07-23 FFT2540 ATL → CMH Jul 23, 19:36 UTCJul 23, 20:54 UTC1h 18m
2026-07-23 FFT2540 ATL → CMH Jul 23, 19:45 UTCJul 23, 20:55 UTC1h 10m
2026-07-23 FFT3071 ORF → ATL Jul 23, 16:50 UTCJul 23, 18:10 UTC1h 20m
2026-07-23 FFT3071 ORF → ATL Jul 23, 16:23 UTCJul 23, 18:05 UTC1h 42m
2026-07-23 FFT3072 ATL → ORF Jul 23, 15:20 UTCJul 23, 15:35 UTC15m
2026-07-23 FFT3072 ATL → ORF Jul 23, 14:00 UTCJul 23, 15:15 UTC1h 15m
2026-07-23 FFT4873 FLL → ATL Jul 23, 10:25 UTCJul 23, 11:50 UTC1h 25m
2026-07-23 FFT2174 ATL → FLL Jul 23, 03:30 UTCJul 23, 04:55 UTC1h 25m
2026-07-23 FFT3500 MCI → ATL Jul 23, 00:10 UTCJul 23, 01:40 UTC1h 30m
2026-07-23 FFT3500 MCI → ATL Jul 23, 00:13 UTCJul 23, 01:39 UTC1h 26m
2026-07-22 FFT3499 ATL → MCI Jul 22, 21:30 UTCJul 22, 23:10 UTC1h 40m
2026-07-22 FFT2144 - Jul 22, 17:30 UTCJul 22, 18:50 UTC1h 20m
2026-07-22 FFT2779 ATL → MDW Jul 22, 14:15 UTCJul 22, 15:50 UTC1h 35m
2026-07-22 FFT4601 EWR → ATL Jul 22, 10:20 UTCJul 22, 11:55 UTC1h 35m
2026-07-22 FFT4602 FLL → PHL Jul 22, 03:46 UTCJul 22, 05:28 UTC1h 42m
2026-07-22 FFT4602 FLL → PHL Jul 22, 03:50 UTCJul 22, 05:25 UTC1h 35m
2026-07-21 FFT2539 CMH → ATL Jul 21, 21:50 UTCJul 21, 23:20 UTC1h 30m
2026-07-21 FFT2539 CMH → ATL Jul 21, 21:54 UTCJul 21, 23:19 UTC1h 25m
2026-07-21 FFT2540 ATL → CMH Jul 21, 19:35 UTCJul 21, 20:50 UTC1h 15m
2026-07-21 FFT1116 LAS → ATL Jul 21, 14:05 UTCJul 21, 17:45 UTC3h 40m
2026-07-21 FFT3885 DFW → LAS Jul 21, 04:20 UTCJul 21, 06:30 UTC2h 10m
2026-07-21 FFT1757 CVG → TPA Jul 21, 00:25 UTCJul 21, 02:15 UTC1h 50m
2026-07-20 FFT4280 DFW → CVG Jul 20, 20:50 UTCJul 20, 22:40 UTC1h 50m
2026-07-20 FFT3177 - Jul 20, 16:55 UTCJul 20, 18:55 UTC2h 0m
2026-07-20 FFT3178 DFW → DTW Jul 20, 13:20 UTCJul 20, 15:35 UTC2h 15m
2026-07-20 FFT1650 RDU → PHL Jul 20, 09:20 UTCJul 20, 11:35 UTC2h 15m
2026-07-20 FFT1257 TPA → LAS Jul 20, 03:20 UTCJul 20, 07:10 UTC3h 50m
2026-07-20 FFT3054 ATL → TPA Jul 20, 01:05 UTCJul 20, 02:10 UTC1h 5m
2026-07-20 FFT3054 ATL → TPA Jul 20, 00:44 UTCJul 20, 02:05 UTC1h 21m
2026-07-19 FFT2723 TPA → ATL Jul 19, 22:40 UTCJul 19, 23:40 UTC1h 0m
2026-07-19 FFT123 TPA → TPA Jul 19, 12:50 UTCJul 19, 20:20 UTC7h 30m
2026-07-18 FFT1036 DTW → TPA Jul 18, 22:25 UTCJul 19, 00:40 UTC2h 15m
2026-07-18 FFT1035 TPA → DTW Jul 18, 18:35 UTCJul 18, 21:00 UTC2h 25m
2026-07-18 FFT1668 - Jul 18, 15:40 UTCJul 18, 17:25 UTC1h 45m
2026-07-18 FFT1303 TPA → CVG Jul 18, 11:50 UTCJul 18, 14:05 UTC2h 15m
2026-07-17 FFT2912 ATL → TPA Jul 17, 23:30 UTCJul 18, 00:45 UTC1h 15m
2026-07-17 FFT4435 TPA → ATL Jul 17, 19:55 UTCJul 17, 21:00 UTC1h 5m
2026-07-17 FFT1668 - Jul 17, 15:10 UTCJul 17, 16:59 UTC1h 50m
2026-07-17 FFT1303 TPA → CVG Jul 17, 12:04 UTCJul 17, 13:55 UTC1h 50m

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 N350FR page for operator, model, and routing details .

Mode-S A3E55A frequently asked

What is Mode-S code A3E55A?
A3E55A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N350FR.
Where is Mode-S A3E55A registered?
Mode-S code A3E55A 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 A3E55A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3E55A, octal 50762532, decimal 10,741,082.
What flights does A3E55A operate?
Mode-S A3E55A has broadcast 20 distinct callsigns, including FFT4401, FFT3971, FFT3581, FFT2532, FFT4964.