Apparatus

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sensors Mode-S transponder

A8DFFC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N671FR · operated by UMB BANK NA TRUSTEE

Hex
A8DFFC
Octal
52157774
Decimal
11,067,388
Country
US
Tail
N671FR
Type
A21N
Broadcasting now · callsign FFT3199 · 15,650 ft
Flights observed
525
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Current position

A8DFFC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A8DFFC 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
FFT3913 Frontier Airlines 7 2026-07-18
FFT4455 Frontier Airlines 6 2026-06-16
FFT2060 - 6 2026-07-01
FFT4725 - 5 2026-07-09
FFT3916 - 5 2026-07-14
FFT2667 - 5 2026-07-14
FFT2178 - 5 2026-06-16
FFT2133 Frontier Airlines 5 2026-05-28
FFT1274 - 5 2026-06-19
FFT4146 - 4 2026-07-05
FFT2636 - 4 2026-06-29
FFT2530 Frontier Airlines 4 2026-07-22
FFT2511 Frontier Airlines 4 2026-07-22
FFT2059 - 4 2026-07-01
FFT1876 Frontier Airlines 4 2026-07-21
FFT1417 - 4 2026-07-21
FFT1177 Frontier Airlines 4 2026-05-30
FFT4978 - 3 2026-07-07
FFT4781 - 3 2026-06-18
FFT4702 - 3 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT3424 DFW → LGA Jul 26, 22:35 UTCJul 26, 23:00 UTC25m
2026-07-26 FFT1269 ATL → DFW Jul 26, 19:00 UTCJul 26, 20:40 UTC1h 40m
2026-07-26 FFT3022 DFW → ATL Jul 26, 15:15 UTCJul 26, 17:05 UTC1h 50m
2026-07-25 FFT1973 FLL → DFW Jul 25, 23:25 UTCJul 26, 01:55 UTC2h 30m
2026-07-25 FFT1974 DFW → FLL Jul 25, 19:10 UTCJul 25, 21:45 UTC2h 35m
2026-07-25 FFT1333 TPA → DFW Jul 25, 14:35 UTCJul 25, 16:50 UTC2h 15m
2026-07-25 FFT1334 MCO → LGA Jul 25, 10:45 UTCJul 25, 12:50 UTC2h 5m
2026-07-25 FFT3212 LAX → DFW Jul 25, 02:15 UTCJul 25, 04:55 UTC2h 40m
2026-07-25 FFT3212 LAX → DFW Jul 25, 01:57 UTCJul 25, 04:54 UTC2h 57m
2026-07-24 FFT1755 IAH → LAX Jul 24, 21:55 UTCJul 25, 00:40 UTC2h 45m
2026-07-24 FFT2412 ONT → IAH Jul 24, 16:55 UTCJul 24, 19:50 UTC2h 55m
2026-07-24 FFT4689 DFW → ONT Jul 24, 13:00 UTCJul 24, 15:30 UTC2h 30m
2026-07-24 FFT1341 ORD → DFW Jul 24, 03:10 UTCJul 24, 05:00 UTC1h 50m
2026-07-23 FFT3242 DFW → ORD Jul 23, 23:20 UTCJul 24, 01:20 UTC2h 0m
2026-07-23 FFT2471 EWR → DFW Jul 23, 17:55 UTCJul 23, 21:00 UTC3h 5m
2026-07-23 FFT2472 DFW → EWR Jul 23, 13:00 UTCJul 23, 16:05 UTC3h 5m
2026-07-23 FFT2564 LAX → DFW Jul 23, 03:05 UTCJul 23, 05:35 UTC2h 30m
2026-07-22 FFT4145 MCO → LAX Jul 22, 20:10 UTCJul 23, 00:35 UTC4h 25m
2026-07-22 FFT2511 GRR → TPA Jul 22, 16:25 UTCJul 22, 18:45 UTC2h 20m
2026-07-22 FFT2512 MCO → EWR Jul 22, 11:50 UTCJul 22, 14:00 UTC2h 10m
2026-07-22 FFT2530 DTW → MCO Jul 22, 01:10 UTCJul 22, 03:45 UTC2h 35m
2026-07-22 FFT2530 DTW → MCO Jul 22, 01:05 UTCJul 22, 03:39 UTC2h 34m
2026-07-21 FFT2713 MCO → DTW Jul 21, 21:30 UTCJul 21, 23:45 UTC2h 15m
2026-07-21 FFT1111 - Jul 21, 18:45 UTCJul 21, 19:00 UTC15m
2026-07-21 FFT1111 RDU → MCO Jul 21, 18:45 UTCJul 21, 19:54 UTC1h 9m
2026-07-21 FFT1742 RSW → CVG Jul 21, 14:45 UTCJul 21, 17:10 UTC2h 25m
2026-07-21 FFT1417 MCO → IAH Jul 21, 11:20 UTCJul 21, 13:20 UTC2h 0m
2026-07-21 FFT1876 LAS → MCO Jul 21, 05:15 UTCJul 21, 09:35 UTC4h 20m
2026-07-21 FFT1106 PDX → LAS Jul 21, 01:10 UTCJul 21, 03:00 UTC1h 50m
2026-07-20 FFT1105 MCO → LAS Jul 20, 21:55 UTCJul 20, 23:40 UTC1h 45m
2026-07-20 FFT1105 MCO → LAS Jul 20, 21:43 UTCJul 20, 23:36 UTC1h 53m
2026-07-20 FFT3645 AUS → LAS Jul 20, 18:05 UTCJul 20, 20:20 UTC2h 15m
2026-07-20 FFT4684 LAS → AUS Jul 20, 14:15 UTCJul 20, 16:45 UTC2h 30m
2026-07-20 FFT3417 SAT → LAS Jul 20, 02:50 UTCJul 20, 05:05 UTC2h 15m
2026-07-19 FFT3418 LAS → SAT Jul 19, 22:56 UTCJul 20, 01:24 UTC2h 28m
2026-07-19 FFT3418 LAS → SAT Jul 19, 23:10 UTCJul 20, 01:25 UTC2h 15m
2026-07-19 FFT4244 RNO → LAS Jul 19, 20:30 UTCJul 19, 21:25 UTC55m
2026-07-19 FFT4243 MDW → MIA Jul 19, 18:00 UTCJul 19, 18:55 UTC55m
2026-07-18 FFT3913 MCO → LAS Jul 18, 22:35 UTCJul 19, 02:35 UTC4h 0m
2026-07-18 FFT1728 LAS → MCO Jul 18, 16:35 UTCJul 18, 20:50 UTC4h 15m
2026-07-18 FFT1184 LAX → LAS Jul 18, 13:40 UTCJul 18, 14:25 UTC45m
2026-07-18 FFT1184 LAX → LAS Jul 18, 13:42 UTCJul 18, 14:24 UTC42m
2026-07-18 FFT2445 ORD → LAX Jul 18, 06:35 UTCJul 18, 10:00 UTC3h 25m
2026-07-17 FFT3345 SJU → ORD Jul 17, 23:45 UTCJul 18, 04:45 UTC5h 1m
2026-07-17 FFT4420 - Jul 17, 21:05 UTCJul 17, 21:20 UTC15m
2026-07-17 FFT4420 - Jul 17, 18:00 UTCJul 17, 18:44 UTC45m
2026-07-17 FFT3937 SJU → BDL Jul 17, 13:00 UTCJul 17, 16:29 UTC3h 30m
2026-07-17 FFT240 - Jul 17, 02:10 UTCJul 17, 02:20 UTC10m
2026-07-16 FFT241 - Jul 16, 23:29 UTCJul 16, 23:40 UTC10m
2026-07-16 FFT32 - Jul 16, 15:00 UTCJul 16, 16:19 UTC1h 20m

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 N671FR page for operator, model, and routing details .

Mode-S A8DFFC frequently asked

What is Mode-S code A8DFFC?
A8DFFC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N671FR.
Where is Mode-S A8DFFC registered?
Mode-S code A8DFFC 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 A8DFFC broadcasting right now?
Yes. Mode-S A8DFFC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8DFFC, octal 52157774, decimal 11,067,388.
What flights does A8DFFC operate?
Mode-S A8DFFC has broadcast 20 distinct callsigns, including FFT3913, FFT4455, FFT2060, FFT4725, FFT3916.