Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A85493

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N636FR · AIRBUS A-321neo · operated by BANK OF UTAH TRUSTEE

Hex
A85493
Octal
52052223
Decimal
11,031,699
Country
US
Tail
N636FR
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
432
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A85493.

Country allocation

The ICAO 24-bit address A85493 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
FFT3735 Frontier Airlines 6 2026-05-08
FFT1101 - 6 2026-07-13
FFT2695 - 5 2026-07-11
FFT1774 - 5 2026-07-10
FFT1726 - 5 2026-07-10
FFT1441 - 5 2026-07-04
FFT1040 Frontier Airlines 5 2026-05-02
FFT4794 Frontier Airlines 4 2026-05-10
FFT4455 - 4 2026-07-12
FFT3736 Frontier Airlines 4 2026-05-08
FFT3287 Frontier Airlines 4 2026-06-09
FFT1993 - 4 2026-07-01
FFT4968 - 3 2026-06-19
FFT4793 Frontier Airlines 3 2026-04-20
FFT4131 - 3 2026-06-30
FFT3972 Frontier Airlines 3 2026-06-28
FFT3913 - 3 2026-06-30
FFT3303 Frontier Airlines 3 2026-06-28
FFT3288 Frontier Airlines 3 2026-06-09
FFT3156 Frontier Airlines 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT2552 - Jul 14, 01:50 UTCJul 14, 02:45 UTC55m
2026-07-13 FFT1101 PSQ → ATL Jul 13, 22:00 UTCJul 13, 23:45 UTC1h 45m
2026-07-13 FFT1101 PHL → ATL Jul 13, 21:46 UTCJul 13, 23:33 UTC1h 47m
2026-07-13 FFT1101 - Jul 13, 20:35 UTCJul 13, 20:40 UTC5m
2026-07-13 FFT1101 - Jul 13, 20:15 UTCJul 13, 20:20 UTC5m
2026-07-13 FFT1101 - Jul 13, 20:00 UTCJul 13, 20:05 UTC5m
2026-07-13 FFT2932 - Jul 13, 17:20 UTCJul 13, 19:35 UTC2h 15m
2026-07-13 FFT2932 FLL → PHL Jul 13, 17:25 UTCJul 13, 19:31 UTC2h 6m
2026-07-13 FFT2007 - Jul 13, 13:20 UTCJul 13, 15:45 UTC2h 25m
2026-07-13 FFT2021 PHL → DTW Jul 13, 10:30 UTCJul 13, 11:35 UTC1h 5m
2026-07-13 FFT1328 - Jul 13, 06:10 UTCJul 13, 06:15 UTC5m
2026-07-13 FFT1328 - Jul 13, 04:25 UTCJul 13, 05:25 UTC1h 0m
2026-07-13 FFT1984 - Jul 13, 01:01 UTCJul 13, 02:30 UTC1h 30m
2026-07-12 FFT4455 - Jul 12, 21:10 UTCJul 12, 23:25 UTC2h 15m
2026-07-12 FFT4455 - Jul 12, 20:25 UTCJul 12, 20:30 UTC5m
2026-07-12 FFT4455 - Jul 12, 20:05 UTCJul 12, 20:10 UTC5m
2026-07-12 FFT2022 - Jul 12, 19:40 UTCJul 12, 19:45 UTC5m
2026-07-12 FFT2022 - Jul 12, 18:15 UTCJul 12, 19:20 UTC1h 5m
2026-07-12 FFT2008 - Jul 12, 14:01 UTCJul 12, 16:25 UTC2h 25m
2026-07-12 FFT2609 PHL → FLL Jul 12, 10:10 UTCJul 12, 12:20 UTC2h 10m
2026-07-12 FFT4440 - Jul 12, 03:15 UTCJul 12, 05:20 UTC2h 5m
2026-07-12 FFT1983 - Jul 12, 00:40 UTCJul 12, 02:05 UTC1h 25m
2026-07-11 FFT4353 - Jul 11, 22:10 UTCJul 11, 23:15 UTC1h 5m
2026-07-11 FFT2022 - Jul 11, 18:15 UTCJul 11, 19:20 UTC1h 5m
2026-07-11 FFT2008 - Jul 11, 13:55 UTCJul 11, 16:20 UTC2h 25m
2026-07-11 FFT2008 FLL → DTW Jul 11, 14:04 UTCJul 11, 16:20 UTC2h 16m
2026-07-11 FFT2609 - Jul 11, 10:10 UTCJul 11, 12:20 UTC2h 10m
2026-07-11 FFT2695 - Jul 11, 01:10 UTCJul 11, 01:55 UTC45m
2026-07-10 FFT2695 - Jul 10, 22:45 UTCJul 10, 22:55 UTC10m
2026-07-10 FFT1774 - Jul 10, 19:50 UTCJul 10, 20:10 UTC20m
2026-07-10 FFT1774 - Jul 10, 16:50 UTCJul 10, 17:35 UTC45m
2026-07-10 FFT1774 BWI → SJU Jul 10, 16:48 UTCJul 10, 20:09 UTC3h 21m
2026-07-10 FFT2265 - Jul 10, 14:25 UTCJul 10, 15:10 UTC45m
2026-07-10 FFT2265 - Jul 10, 11:55 UTCJul 10, 12:10 UTC15m
2026-07-10 FFT1726 - Jul 10, 07:40 UTCJul 10, 08:00 UTC20m
2026-07-10 FFT1726 - Jul 10, 04:45 UTCJul 10, 05:30 UTC45m
2026-07-10 FFT1726 - Jul 10, 04:25 UTCJul 10, 04:30 UTC5m
2026-07-10 FFT2695 - Jul 10, 02:00 UTCJul 10, 02:50 UTC50m
2026-07-09 FFT2695 - Jul 9, 23:35 UTCJul 9, 23:45 UTC10m
2026-07-09 FFT2695 SJU → PHL Jul 9, 23:18 UTCJul 10, 02:50 UTC3h 32m
2026-07-09 FFT1774 - Jul 9, 20:35 UTCJul 9, 21:00 UTC25m
2026-07-09 FFT1774 - Jul 9, 17:25 UTCJul 9, 18:55 UTC1h 30m
2026-07-09 FFT2265 - Jul 9, 12:10 UTCJul 9, 15:55 UTC3h 45m
2026-07-09 FFT1726 - Jul 9, 06:20 UTCJul 9, 06:45 UTC25m
2026-07-09 FFT1726 - Jul 9, 03:25 UTCJul 9, 04:10 UTC45m
2026-07-08 FFT4404 MCO → PHL Jul 8, 21:35 UTCJul 8, 23:40 UTC2h 5m
2026-07-08 FFT4173 - Jul 8, 17:40 UTCJul 8, 19:40 UTC2h 0m
2026-07-08 FFT2388 ATL → PHL Jul 8, 15:05 UTCJul 8, 16:10 UTC1h 5m
2026-07-08 FFT2387 - Jul 8, 12:10 UTCJul 8, 13:25 UTC1h 15m
2026-07-07 FFT1102 ATL → PHL Jul 7, 02:35 UTCJul 7, 04:10 UTC1h 35m

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 N636FR page for operator, model, and routing details .

Mode-S A85493 frequently asked

What is Mode-S code A85493?
A85493 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N636FR.
Where is Mode-S A85493 registered?
Mode-S code A85493 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 A85493 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A85493, octal 52052223, decimal 11,031,699.
What flights does A85493 operate?
Mode-S A85493 has broadcast 20 distinct callsigns, including FFT3735, FFT1101, FFT2695, FFT1774, FFT1726.