Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 1d ago
Flights observed
478
Distinct callsigns
20
Country
US
Last broadcast
1d ago

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
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
FFT3937 Frontier Airlines 4 2026-06-30
FFT3567 - 4 2026-07-09
FFT3506 - 4 2026-06-29
FFT3206 Frontier Airlines 4 2026-06-08
FFT2898 Frontier Airlines 4 2026-05-09
FFT1620 - 4 2026-06-27
FFT1150 Frontier Airlines 4 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 FFT1046 - Jul 12, 12:05 UTCJul 12, 14:25 UTC2h 20m
2026-07-12 FFT3451 PPM → CLE Jul 12, 00:15 UTCJul 12, 02:30 UTC2h 15m
2026-07-11 FFT3452 - Jul 11, 20:30 UTCJul 11, 23:00 UTC2h 30m
2026-07-11 FFT3452 CLE → FLL Jul 11, 20:15 UTCJul 11, 22:57 UTC2h 42m
2026-07-11 FFT1045 - Jul 11, 15:45 UTCJul 11, 18:10 UTC2h 25m
2026-07-11 FFT1046 - Jul 11, 11:50 UTCJul 11, 14:10 UTC2h 20m
2026-07-11 FFT4135 MIA → CLE Jul 11, 00:55 UTCJul 11, 03:15 UTC2h 20m
2026-07-10 FFT3026 - Jul 10, 21:05 UTCJul 10, 23:25 UTC2h 20m
2026-07-10 FFT206 CUN → CLE Jul 10, 16:00 UTCJul 10, 19:15 UTC3h 15m
2026-07-10 FFT207 - Jul 10, 10:25 UTCJul 10, 13:25 UTC3h 0m
2026-07-10 FFT3568 DFW → CLE Jul 10, 00:50 UTCJul 10, 03:15 UTC2h 25m
2026-07-09 FFT3567 - Jul 9, 20:45 UTCJul 9, 23:00 UTC2h 15m
2026-07-09 FFT3567 CLE → DFW Jul 9, 20:36 UTCJul 9, 22:59 UTC2h 23m
2026-07-09 FFT206 CUN → CLE Jul 9, 15:20 UTCJul 9, 18:15 UTC2h 55m
2026-07-09 FFT207 - Jul 9, 10:20 UTCJul 9, 13:40 UTC3h 20m
2026-07-08 FFT1492 TPA → CLE Jul 8, 22:35 UTCJul 9, 00:30 UTC1h 55m
2026-07-08 FFT2919 CLE → TPA Jul 8, 18:55 UTCJul 8, 20:55 UTC2h 0m
2026-07-08 FFT2667 - Jul 8, 15:15 UTCJul 8, 17:10 UTC1h 55m
2026-07-08 FFT4146 - Jul 8, 08:10 UTCJul 8, 12:40 UTC4h 30m
2026-07-08 FFT2858 - Jul 8, 05:40 UTCJul 8, 06:35 UTC55m
2026-07-07 FFT1447 ATL → SFO Jul 7, 23:20 UTCJul 8, 03:50 UTC4h 30m
2026-07-07 FFT4731 JFK → ATL Jul 7, 18:55 UTCJul 7, 20:40 UTC1h 45m
2026-07-07 FFT4731 JFK → ATL Jul 7, 18:13 UTCJul 7, 20:39 UTC2h 26m
2026-07-07 FFT4732 - Jul 7, 00:05 UTCJul 7, 00:45 UTC40m
2026-07-06 FFT4732 - Jul 6, 13:30 UTCJul 6, 16:10 UTC2h 40m
2026-07-06 FFT4797 RDU → ATL Jul 6, 10:25 UTCJul 6, 11:25 UTC1h 0m
2026-07-06 FFT1670 - Jul 6, 06:05 UTCJul 6, 07:05 UTC1h 0m
2026-07-06 FFT2871 - Jul 6, 02:50 UTCJul 6, 04:10 UTC1h 20m
2026-07-06 FFT2871 - Jul 6, 01:00 UTCJul 6, 01:10 UTC10m
2026-07-05 FFT1166 MCO → PHL Jul 5, 22:55 UTCJul 5, 23:15 UTC20m
2026-07-05 FFT1166 MCO → PHL Jul 5, 19:55 UTCJul 5, 20:45 UTC50m
2026-07-05 FFT1166 MCO → PHL Jul 5, 19:46 UTCJul 5, 23:17 UTC3h 31m
2026-07-04 FFT4844 - Jul 4, 02:05 UTCJul 4, 03:00 UTC55m
2026-07-03 FFT1517 - Jul 3, 23:35 UTCJul 4, 00:25 UTC50m
2026-07-03 FFT2932 - Jul 3, 18:20 UTCJul 3, 20:40 UTC2h 20m
2026-07-03 FFT4455 PHL → FLL Jul 3, 14:30 UTCJul 3, 16:45 UTC2h 15m
2026-07-03 FFT2112 - Jul 3, 01:35 UTCJul 3, 02:00 UTC25m
2026-07-03 FFT2112 ORD → PHL Jul 3, 01:15 UTCJul 3, 03:03 UTC1h 48m
2026-07-02 FFT2111 - Jul 2, 21:25 UTCJul 2, 23:05 UTC1h 40m
2026-07-02 FFT357 STI → PHL Jul 2, 11:05 UTCJul 2, 18:55 UTC7h 50m
2026-07-01 FFT3480 - Jul 1, 20:10 UTCJul 1, 21:55 UTC1h 45m
2026-07-01 FFT2815 PHL → JAX Jul 1, 17:00 UTCJul 1, 18:35 UTC1h 35m
2026-07-01 FFT2815 PHL → JAX Jul 1, 17:02 UTCJul 1, 18:34 UTC1h 32m
2026-07-01 FFT1015 - Jul 1, 13:40 UTCJul 1, 14:20 UTC40m
2026-07-01 FFT1015 - Jul 1, 10:55 UTCJul 1, 11:10 UTC15m
2026-06-30 FFT4420 - Jun 30, 21:30 UTCJun 30, 21:50 UTC20m
2026-06-30 FFT4420 - Jun 30, 18:35 UTCJun 30, 19:10 UTC35m
2026-06-30 FFT3937 SJU → BDL Jun 30, 13:05 UTCJun 30, 16:35 UTC3h 30m
2026-06-29 FFT4420 HFD → SJU Jun 29, 18:34 UTCJun 29, 22:30 UTC3h 55m
2026-06-29 FFT3937 SJU → BDL Jun 29, 15:14 UTCJun 29, 17:14 UTC2h 0m

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 1d ago.
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.