Apparatus

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sensors Mode-S transponder

A99E09

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N719FR · AIRBUS A-321 · operated by WELLS FARGO TRUST CO NA TRUSTEE

Hex
A99E09
Octal
52317011
Decimal
11,116,041
Country
US
Tail
N719FR
Type
A321
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
499
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A99E09.

Country allocation

The ICAO 24-bit address A99E09 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
FFT3206 Frontier Airlines 7 2026-05-15
FFT1203 Frontier Airlines 7 2026-06-08
FFT4186 - 6 2026-07-07
FFT3227 Frontier Airlines 6 2026-05-15
FFT2349 - 6 2026-07-07
FFT91 Frontier Airlines 5 2026-06-08
FFT3540 - 5 2026-07-06
FFT3274 Frontier Airlines 5 2026-07-19
FFT3156 Frontier Airlines 5 2026-07-23
FFT3081 - 5 2026-07-19
FFT2496 - 5 2026-07-02
FFT2356 Frontier Airlines 5 2026-07-22
FFT1953 - 5 2026-07-20
FFT1204 Frontier Airlines 5 2026-06-09
FFT90 Frontier Airlines 4 2026-06-08
FFT4978 Frontier Airlines 4 2026-07-19
FFT4891 Frontier Airlines 4 2026-07-20
FFT4545 Frontier Airlines 4 2026-07-24
FFT4345 Frontier Airlines 4 2026-07-23
FFT4025 - 4 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT2348 PBI → PHL Jul 26, 21:55 UTCJul 26, 22:15 UTC20m
2026-07-26 FFT3199 PHL → MCO Jul 26, 18:20 UTCJul 26, 19:55 UTC1h 35m
2026-07-26 FFT1150 DEN → MSP Jul 26, 15:20 UTCJul 26, 16:45 UTC1h 25m
2026-07-26 FFT1279 MIA → DEN Jul 26, 10:10 UTCJul 26, 13:40 UTC3h 30m
2026-07-26 FFT1665 LGA → MCO Jul 26, 02:10 UTCJul 26, 04:15 UTC2h 5m
2026-07-25 FFT2940 MIA → BWI Jul 25, 21:45 UTCJul 26, 00:10 UTC2h 25m
2026-07-25 FFT67 PUJ → MIA Jul 25, 18:20 UTCJul 25, 19:00 UTC40m
2026-07-25 FFT67 PUJ → MIA Jul 25, 16:34 UTCJul 25, 18:55 UTC2h 21m
2026-07-25 FFT66 MCI → PVR Jul 25, 12:35 UTCJul 25, 17:20 UTC4h 45m
2026-07-25 FFT1280 DEN → MIA Jul 25, 06:50 UTCJul 25, 10:15 UTC3h 25m
2026-07-25 FFT1176 SEA → DEN Jul 25, 02:30 UTCJul 25, 04:40 UTC2h 10m
2026-07-24 FFT1177 LAX → SEA Jul 24, 22:25 UTCJul 25, 00:35 UTC2h 10m
2026-07-24 FFT1178 SEA → LAX Jul 24, 18:00 UTCJul 24, 20:25 UTC2h 25m
2026-07-24 FFT4545 DTW → PHX Jul 24, 13:50 UTCJul 24, 16:20 UTC2h 30m
2026-07-24 FFT3205 IAH → DEN Jul 24, 04:10 UTCJul 24, 06:25 UTC2h 15m
2026-07-24 FFT3205 IAH → DEN Jul 24, 04:07 UTCJul 24, 06:21 UTC2h 14m
2026-07-24 FFT3228 DEN → IAH Jul 24, 00:15 UTCJul 24, 02:10 UTC1h 55m
2026-07-23 FFT4385 CID → DEN Jul 23, 20:00 UTCJul 23, 21:40 UTC1h 40m
2026-07-23 FFT4386 DEN → CID Jul 23, 17:15 UTCJul 23, 18:40 UTC1h 25m
2026-07-23 FFT3156 LAX → DEN Jul 23, 13:50 UTCJul 23, 15:45 UTC1h 55m
2026-07-23 FFT4345 DEN → LAX Jul 23, 06:10 UTCJul 23, 08:00 UTC1h 50m
2026-07-23 FFT3707 SAT → DEN Jul 23, 02:25 UTCJul 23, 04:30 UTC2h 5m
2026-07-22 FFT2356 RSW → PHL Jul 22, 21:40 UTCJul 22, 23:35 UTC1h 55m
2026-07-22 FFT2225 RDU → DEN Jul 22, 16:40 UTCJul 22, 19:50 UTC3h 10m
2026-07-22 FFT2440 DEN → RDU Jul 22, 12:15 UTCJul 22, 15:05 UTC2h 50m
2026-07-21 FFT3934 BOI → DEN Jul 21, 19:30 UTCJul 21, 21:00 UTC1h 30m
2026-07-21 FFT3933 DEN → BOI Jul 21, 16:35 UTCJul 21, 18:05 UTC1h 30m
2026-07-21 FFT2350 LAS → DEN Jul 21, 13:10 UTCJul 21, 14:40 UTC1h 30m
2026-07-21 FFT2017 STL → LAS Jul 21, 01:15 UTCJul 21, 04:10 UTC2h 55m
2026-07-20 FFT3108 LAS → STL Jul 20, 21:20 UTCJul 21, 00:10 UTC2h 49m
2026-07-20 FFT4891 ATL → LAS Jul 20, 15:15 UTCJul 20, 18:40 UTC3h 25m
2026-07-20 FFT1563 MCO → ATL Jul 20, 11:55 UTCJul 20, 13:00 UTC1h 5m
2026-07-20 FFT1953 MCO → MCO Jul 20, 04:05 UTCJul 20, 09:45 UTC5h 40m
2026-07-20 FFT3819 PIT → MCO Jul 20, 00:35 UTCJul 20, 02:20 UTC1h 45m
2026-07-19 FFT1620 - Jul 19, 20:50 UTCJul 19, 22:45 UTC1h 55m
2026-07-19 FFT3364 - Jul 19, 16:45 UTCJul 19, 18:55 UTC2h 10m
2026-07-19 FFT3081 - Jul 19, 14:00 UTCJul 19, 15:05 UTC1h 5m
2026-07-19 FFT3274 MCO → BWI Jul 19, 10:45 UTCJul 19, 12:30 UTC1h 45m
2026-07-19 FFT4978 IAH → MCO Jul 19, 00:30 UTCJul 19, 02:30 UTC2h 0m
2026-07-19 FFT4978 IAH → MCO Jul 19, 00:36 UTCJul 19, 02:29 UTC1h 53m
2026-07-18 FFT3469 - Jul 18, 20:50 UTCJul 18, 22:45 UTC1h 55m
2026-07-18 FFT3364 - Jul 18, 16:35 UTCJul 18, 18:40 UTC2h 5m
2026-07-18 FFT3081 - Jul 18, 13:55 UTCJul 18, 14:55 UTC1h 0m
2026-07-18 FFT3081 BWI → DTW Jul 18, 14:02 UTCJul 18, 14:53 UTC51m
2026-07-18 FFT3274 MCO → BWI Jul 18, 10:43 UTCJul 18, 12:38 UTC1h 55m
2026-07-18 FFT3274 MCO → BWI Jul 18, 10:45 UTCJul 18, 12:40 UTC1h 55m
2026-07-18 FFT1750 - Jul 18, 02:55 UTCJul 18, 04:35 UTC1h 40m
2026-07-17 FFT1477 FLL → CVG Jul 17, 23:10 UTCJul 18, 01:20 UTC2h 10m
2026-07-17 FFT1047 CVG → FLL Jul 17, 19:15 UTCJul 17, 21:25 UTC2h 10m
2026-07-17 FFT1047 CVG → FLL Jul 17, 19:15 UTCJul 17, 21:24 UTC2h 9m

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 N719FR page for operator, model, and routing details .

Mode-S A99E09 frequently asked

What is Mode-S code A99E09?
A99E09 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N719FR.
Where is Mode-S A99E09 registered?
Mode-S code A99E09 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 A99E09 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A99E09, octal 52317011, decimal 11,116,041.
What flights does A99E09 operate?
Mode-S A99E09 has broadcast 20 distinct callsigns, including FFT3206, FFT1203, FFT4186, FFT3227, FFT2349.