Apparatus

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sensors Mode-S transponder

A8A748

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N657FR · AIRBUS A-321neo · operated by BANK OF UTAH TRUSTEE

Hex
A8A748
Octal
52123510
Decimal
11,052,872
Country
US
Tail
N657FR
Type
A21N
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
535
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A8A748.

Country allocation

The ICAO 24-bit address A8A748 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
FFT1015 - 14 2026-07-01
FFT2082 Frontier Airlines 11 2026-05-20
FFT2871 - 10 2026-07-06
FFT1016 Frontier Airlines 9 2026-05-19
FFT1046 - 7 2026-07-12
FFT3452 - 6 2026-07-11
FFT3086 Frontier Airlines 6 2026-05-20
FFT3085 Frontier Airlines 6 2026-05-20
FFT1045 - 6 2026-07-11
FFT86 Frontier Airlines 5 2026-07-25
FFT45 Frontier Airlines 5 2026-07-25
FFT44 Frontier Airlines 5 2026-05-21
FFT1257 Frontier Airlines 5 2026-04-28
FFT1165 Frontier Airlines 5 2026-05-18
FFT4369 - 4 2026-06-18
FFT3978 Frontier Airlines 4 2026-07-23
FFT3937 Frontier Airlines 4 2026-06-30
FFT3567 - 4 2026-07-09
FFT3506 - 4 2026-06-29
FFT3206 Frontier Airlines 4 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT1481 MCO → DFW Jul 26, 21:25 UTCJul 26, 22:00 UTC35m
2026-07-26 FFT34 SJO → MCO Jul 26, 15:40 UTCJul 26, 18:25 UTC2h 45m
2026-07-26 FFT35 MCO → SJO Jul 26, 11:30 UTCJul 26, 14:10 UTC2h 40m
2026-07-25 FFT3044 ORD → MCO Jul 25, 22:30 UTCJul 26, 00:35 UTC2h 5m
2026-07-25 FFT45 CUN → ORD Jul 25, 16:10 UTCJul 25, 19:35 UTC3h 25m
2026-07-25 FFT86 DEN → SJO Jul 25, 11:45 UTCJul 25, 14:20 UTC2h 35m
2026-07-25 FFT2635 MCO → STL Jul 25, 03:05 UTCJul 25, 05:05 UTC2h 0m
2026-07-24 FFT3044 ORD → MCO Jul 24, 22:50 UTCJul 25, 00:55 UTC2h 5m
2026-07-24 FFT3044 ORD → MCO Jul 24, 22:28 UTCJul 25, 00:52 UTC2h 24m
2026-07-24 FFT45 CUN → ORD Jul 24, 16:20 UTCJul 24, 19:40 UTC3h 20m
2026-07-24 FFT45 CUN → ORD Jul 24, 16:15 UTCJul 24, 19:34 UTC3h 19m
2026-07-24 FFT86 DEN → SJO Jul 24, 11:50 UTCJul 24, 14:30 UTC2h 40m
2026-07-24 FFT2635 MCO → STL Jul 24, 03:15 UTCJul 24, 05:15 UTC2h 0m
2026-07-24 FFT3508 ATL → MCO Jul 24, 01:00 UTCJul 24, 02:00 UTC1h 0m
2026-07-23 FFT4025 CLE → TPA Jul 23, 21:45 UTCJul 23, 22:45 UTC1h 0m
2026-07-23 FFT4018 DFW → MCO Jul 23, 17:25 UTCJul 23, 19:44 UTC2h 19m
2026-07-23 FFT4018 DFW → MCO Jul 23, 17:30 UTCJul 23, 19:45 UTC2h 15m
2026-07-23 FFT3978 LAS → DFW Jul 23, 13:15 UTCJul 23, 15:35 UTC2h 20m
2026-07-23 FFT1850 SFO → LAS Jul 23, 00:40 UTCJul 23, 01:45 UTC1h 5m
2026-07-22 FFT4157 LAS → SFO Jul 22, 22:15 UTCJul 22, 23:25 UTC1h 10m
2026-07-22 FFT1051 DFW → LAS Jul 22, 17:45 UTCJul 22, 19:50 UTC2h 5m
2026-07-22 FFT3978 LAS → DFW Jul 22, 13:20 UTCJul 22, 15:45 UTC2h 25m
2026-07-22 FFT4402 - Jul 22, 04:35 UTCJul 22, 05:25 UTC50m
2026-07-22 FFT4402 SFO → LAS Jul 22, 04:13 UTCJul 22, 05:39 UTC1h 26m
2026-07-22 FFT3801 MDW → DFW Jul 22, 02:00 UTCJul 22, 03:05 UTC1h 5m
2026-07-21 FFT1019 PHX → LAS Jul 21, 22:45 UTCJul 21, 23:30 UTC45m
2026-07-21 FFT4048 LAS → PHX Jul 21, 20:40 UTCJul 21, 21:20 UTC40m
2026-07-21 FFT3231 CLE → LAS Jul 21, 15:05 UTCJul 21, 19:00 UTC3h 55m
2026-07-21 FFT4966 LAS → CLE Jul 21, 09:35 UTCJul 21, 13:30 UTC3h 55m
2026-07-21 FFT3521 CVG → LAS Jul 21, 03:10 UTCJul 21, 06:45 UTC3h 35m
2026-07-21 FFT3521 CVG → LAS Jul 21, 02:45 UTCJul 21, 06:48 UTC4h 3m
2026-07-20 FFT3412 LAS → CVG Jul 20, 20:55 UTCJul 21, 00:30 UTC3h 35m
2026-07-20 FFT1875 MCO → LAS Jul 20, 14:45 UTCJul 20, 18:45 UTC4h 0m
2026-07-20 FFT3273 BWI → MCO Jul 20, 10:40 UTCJul 20, 12:30 UTC1h 50m
2026-07-20 FFT3273 BWI → MCO Jul 20, 10:38 UTCJul 20, 12:27 UTC1h 49m
2026-07-20 FFT2310 MCO → BWI Jul 20, 02:05 UTCJul 20, 03:55 UTC1h 50m
2026-07-19 FFT1728 LAS → MCO Jul 19, 19:50 UTCJul 20, 00:05 UTC4h 15m
2026-07-19 FFT4113 - Jul 19, 05:05 UTCJul 19, 05:50 UTC45m
2026-07-19 FFT4113 PHX → LAS Jul 19, 05:11 UTCJul 19, 05:47 UTC36m
2026-07-19 FFT4671 DTW → PHX Jul 19, 00:20 UTCJul 19, 03:45 UTC3h 25m
2026-07-18 FFT1958 IAH → DTW Jul 18, 20:05 UTCJul 18, 22:40 UTC2h 35m
2026-07-18 FFT4184 PHX → IAH Jul 18, 16:30 UTCJul 18, 18:45 UTC2h 15m
2026-07-18 FFT4949 SLC → PHX Jul 18, 03:20 UTCJul 18, 04:30 UTC1h 10m
2026-07-18 FFT3394 SFO → SLC Jul 18, 00:19 UTCJul 18, 01:39 UTC1h 20m
2026-07-17 FFT1191 - Jul 17, 21:20 UTCJul 17, 22:55 UTC1h 35m
2026-07-17 FFT1703 SYR → DEN Jul 17, 17:20 UTCJul 17, 19:49 UTC2h 30m
2026-07-17 FFT1957 DTW → IAH Jul 17, 13:25 UTCJul 17, 15:44 UTC2h 20m
2026-07-17 FFT4392 - Jul 17, 07:44 UTCJul 17, 11:25 UTC3h 40m
2026-07-17 FFT1896 LAS → PHX Jul 17, 05:15 UTCJul 17, 06:00 UTC45m
2026-07-17 FFT2070 SMF → LAS Jul 17, 01:39 UTCJul 17, 02:45 UTC1h 5m

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 N657FR page for operator, model, and routing details .

Mode-S A8A748 frequently asked

What is Mode-S code A8A748?
A8A748 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N657FR.
Where is Mode-S A8A748 registered?
Mode-S code A8A748 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 A8A748 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8A748, octal 52123510, decimal 11,052,872.
What flights does A8A748 operate?
Mode-S A8A748 has broadcast 20 distinct callsigns, including FFT1015, FFT2082, FFT2871, FFT1016, FFT1046.