Apparatus

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sensors Mode-S transponder

A8697F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N641FR · AIRBUS A-321neo · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A8697F
Octal
52064577
Decimal
11,037,055
Country
US
Tail
N641FR
Type
A21N
Transponder active on ground
Flights observed
397
Distinct callsigns
20
Country
US
Last broadcast
38m ago

Last known position

Most recent position reported by Mode-S A8697F.

Country allocation

The ICAO 24-bit address A8697F 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
FFT4895 Frontier Airlines 6 2026-07-01
FFT1755 - 6 2026-07-14
FFT4689 - 5 2026-07-13
FFT4144 Frontier Airlines 5 2026-05-20
FFT3232 Frontier Airlines 5 2026-05-11
FFT3097 - 5 2026-07-07
FFT9341 - 4 2026-06-11
FFT3287 Frontier Airlines 4 2026-06-05
FFT3206 Frontier Airlines 4 2026-04-22
FFT2508 - 4 2026-04-13
FFT2412 - 4 2026-07-13
FFT2069 Frontier Airlines 4 2026-05-19
FFT206 - 4 2026-06-30
FFT4891 Frontier Airlines 3 2026-05-14
FFT4410 Frontier Airlines 3 2026-06-16
FFT4286 Frontier Airlines 3 2026-05-07
FFT4145 Frontier Airlines 3 2026-05-27
FFT4103 Frontier Airlines 3 2026-05-21
FFT4004 Frontier Airlines 3 2026-06-28
FFT3568 - 3 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT1755 - Jul 14, 01:15 UTCJul 14, 03:45 UTC2h 30m
2026-07-13 FFT2412 - Jul 13, 17:00 UTCJul 13, 19:55 UTC2h 55m
2026-07-13 FFT4689 DFW → ONT Jul 13, 13:30 UTCJul 13, 15:55 UTC2h 25m
2026-07-13 FFT1341 ORD → DFW Jul 13, 04:35 UTCJul 13, 06:25 UTC1h 50m
2026-07-13 FFT3242 DFW → ORD Jul 13, 00:45 UTCJul 13, 03:01 UTC2h 15m
2026-07-12 FFT1269 ATL → DFW Jul 12, 19:40 UTCJul 12, 22:50 UTC3h 10m
2026-07-12 FFT3022 DFW → ATL Jul 12, 15:15 UTCJul 12, 17:10 UTC1h 55m
2026-07-12 FFT3022 DFW → ATL Jul 12, 15:20 UTCJul 12, 17:10 UTC1h 50m
2026-07-12 FFT2564 - Jul 12, 01:55 UTCJul 12, 04:35 UTC2h 40m
2026-07-11 FFT1755 - Jul 11, 21:20 UTCJul 12, 00:10 UTC2h 50m
2026-07-11 FFT2412 - Jul 11, 16:40 UTCJul 11, 19:55 UTC3h 15m
2026-07-11 FFT4689 DFW → ONT Jul 11, 12:50 UTCJul 11, 15:15 UTC2h 25m
2026-07-11 FFT1973 - Jul 11, 00:05 UTCJul 11, 02:35 UTC2h 30m
2026-07-10 FFT1974 DFW → FLL Jul 10, 19:35 UTCJul 10, 22:20 UTC2h 45m
2026-07-10 FFT1333 TPA → DFW Jul 10, 14:40 UTCJul 10, 16:55 UTC2h 15m
2026-07-10 FFT1334 DFW → TPA Jul 10, 10:45 UTCJul 10, 12:50 UTC2h 5m
2026-07-10 FFT3423 LGA → DFW Jul 10, 03:50 UTCJul 10, 06:50 UTC3h 0m
2026-07-09 FFT3424 - Jul 9, 23:25 UTCJul 10, 02:20 UTC2h 55m
2026-07-09 FFT3424 DFW → LGA Jul 9, 22:33 UTCJul 10, 02:19 UTC3h 46m
2026-07-09 FFT2471 EWR → DFW Jul 9, 18:15 UTCJul 9, 21:15 UTC3h 0m
2026-07-09 FFT2472 DFW → EWR Jul 9, 13:10 UTCJul 9, 16:10 UTC3h 0m
2026-07-09 FFT2472 DFW → EWR Jul 9, 13:05 UTCJul 9, 16:07 UTC3h 2m
2026-07-09 FFT2564 - Jul 9, 01:40 UTCJul 9, 04:15 UTC2h 35m
2026-07-08 FFT1755 - Jul 8, 21:15 UTCJul 9, 00:05 UTC2h 50m
2026-07-08 FFT2412 - Jul 8, 16:50 UTCJul 8, 19:40 UTC2h 50m
2026-07-08 FFT4689 DFW → ONT Jul 8, 12:50 UTCJul 8, 15:25 UTC2h 35m
2026-07-08 FFT2564 - Jul 8, 01:55 UTCJul 8, 04:30 UTC2h 35m
2026-07-07 FFT1755 - Jul 7, 21:20 UTCJul 8, 00:10 UTC2h 50m
2026-07-07 FFT2412 - Jul 7, 16:40 UTCJul 7, 19:25 UTC2h 45m
2026-07-07 FFT4689 DFW → ONT Jul 7, 12:45 UTCJul 7, 15:15 UTC2h 30m
2026-07-07 FFT4689 DFW → ONT Jul 7, 12:46 UTCJul 7, 15:10 UTC2h 24m
2026-07-07 FFT3097 ATL → DFW Jul 7, 05:16 UTCJul 7, 06:57 UTC1h 41m
2026-07-07 FFT3097 ATL → DFW Jul 7, 05:20 UTCJul 7, 07:00 UTC1h 40m
2026-07-06 FFT4474 STL → ATL Jul 6, 22:05 UTCJul 6, 23:30 UTC1h 25m
2026-07-06 FFT87 SJO → DEN Jul 6, 16:15 UTCJul 6, 18:50 UTC2h 35m
2026-07-06 FFT44 ORD → CUN Jul 6, 11:30 UTCJul 6, 14:35 UTC3h 5m
2026-07-06 FFT3136 - Jul 6, 03:15 UTCJul 6, 05:05 UTC1h 50m
2026-07-05 FFT3135 - Jul 5, 23:00 UTCJul 6, 01:25 UTC2h 25m
2026-07-05 FFT45 CUN → ORD Jul 5, 16:15 UTCJul 5, 19:25 UTC3h 10m
2026-07-05 FFT45 CUN → ORD Jul 5, 16:15 UTCJul 5, 19:22 UTC3h 7m
2026-07-05 FFT86 STL → CUN Jul 5, 11:40 UTCJul 5, 14:20 UTC2h 40m
2026-07-05 FFT2635 MCO → STL Jul 5, 02:20 UTCJul 5, 04:20 UTC2h 0m
2026-07-04 FFT1952 - Jul 4, 22:20 UTCJul 5, 00:35 UTC2h 15m
2026-07-04 FFT1952 DFW → MCO Jul 4, 22:23 UTCJul 5, 00:33 UTC2h 10m
2026-07-04 FFT1052 LAS → DFW Jul 4, 18:10 UTCJul 4, 20:25 UTC2h 15m
2026-07-04 FFT1051 - Jul 4, 14:15 UTCJul 4, 16:35 UTC2h 20m
2026-07-04 FFT3175 DTW → DFW Jul 4, 03:20 UTCJul 4, 05:25 UTC2h 5m
2026-07-04 FFT3990 SAN → DFW Jul 4, 01:10 UTCJul 4, 02:00 UTC50m
2026-07-03 FFT3990 SAN → DFW Jul 3, 20:30 UTCJul 3, 23:20 UTC2h 50m
2026-07-03 FFT4161 PHL → DFW Jul 3, 15:50 UTCJul 3, 18:35 UTC2h 45m

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 N641FR page for operator, model, and routing details .

Mode-S A8697F frequently asked

What is Mode-S code A8697F?
A8697F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N641FR.
Where is Mode-S A8697F registered?
Mode-S code A8697F 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 A8697F broadcasting right now?
Mode-S A8697F is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8697F, octal 52064577, decimal 11,037,055.
What flights does A8697F operate?
Mode-S A8697F has broadcast 20 distinct callsigns, including FFT4895, FFT1755, FFT4689, FFT4144, FFT3232.