Apparatus

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sensors Mode-S transponder

A99A52

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N718FR · AIRBUS A-321 · operated by WELLS FARGO TRUST CO NA TRUSTEE

Hex
A99A52
Octal
52315122
Decimal
11,115,090
Country
US
Tail
N718FR
Type
A321
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
473
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A99A52.

Country allocation

The ICAO 24-bit address A99A52 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
FFT2668 Frontier Airlines 9 2026-07-26
FFT2279 Frontier Airlines 9 2026-07-24
FFT3506 - 8 2026-07-11
FFT2280 Frontier Airlines 7 2026-07-23
FFT4990 - 6 2026-06-28
FFT2421 - 6 2026-06-28
FFT1446 Frontier Airlines 6 2026-07-26
FFT1040 - 6 2026-07-13
FFT2867 Frontier Airlines 5 2026-06-22
FFT24 - 5 2026-07-20
FFT2369 - 5 2026-07-01
FFT2225 - 5 2026-07-02
FFT1741 - 5 2026-07-13
FFT1445 Frontier Airlines 5 2026-07-26
FFT1418 - 5 2026-07-13
FFT4186 - 4 2026-07-05
FFT4135 Frontier Airlines 4 2026-07-26
FFT4025 - 4 2026-07-14
FFT3286 - 4 2026-06-18
FFT3026 Frontier Airlines 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT1620 MCO → PIT Jul 26, 21:20 UTCJul 26, 22:30 UTC1h 10m
2026-07-26 FFT1445 CLT → MCO Jul 26, 17:00 UTCJul 26, 18:10 UTC1h 10m
2026-07-26 FFT1446 MCO → CLT Jul 26, 13:40 UTCJul 26, 14:55 UTC1h 15m
2026-07-26 FFT2668 CLE → MCO Jul 26, 10:10 UTCJul 26, 12:05 UTC1h 55m
2026-07-26 FFT2668 CLE → MCO Jul 26, 10:10 UTCJul 26, 11:59 UTC1h 49m
2026-07-26 FFT4135 MIA → CLE Jul 26, 02:30 UTCJul 26, 04:45 UTC2h 15m
2026-07-25 FFT3026 CLE → MIA Jul 25, 20:35 UTCJul 25, 22:45 UTC2h 10m
2026-07-25 FFT3026 CLE → MIA Jul 25, 20:38 UTCJul 25, 22:44 UTC2h 6m
2026-07-25 FFT206 CUN → CLE Jul 25, 15:25 UTCJul 25, 18:30 UTC3h 5m
2026-07-25 FFT207 CLE → CUN Jul 25, 10:50 UTCJul 25, 14:05 UTC3h 15m
2026-07-25 FFT4135 MIA → CLE Jul 25, 03:05 UTCJul 25, 05:25 UTC2h 20m
2026-07-25 FFT4135 MIA → CLE Jul 25, 02:33 UTCJul 25, 05:24 UTC2h 51m
2026-07-24 FFT3026 CLE → MIA Jul 24, 20:45 UTCJul 24, 23:05 UTC2h 20m
2026-07-24 FFT2667 MCO → CLE Jul 24, 15:55 UTCJul 24, 17:55 UTC2h 0m
2026-07-24 FFT2668 CLE → MCO Jul 24, 10:05 UTCJul 24, 12:00 UTC1h 55m
2026-07-24 FFT2279 MCO → CLE Jul 24, 03:30 UTCJul 24, 05:40 UTC2h 10m
2026-07-23 FFT3560 BNA → MCO Jul 23, 23:05 UTCJul 24, 00:35 UTC1h 30m
2026-07-23 FFT3559 MCO → BNA Jul 23, 19:05 UTCJul 23, 20:40 UTC1h 35m
2026-07-23 FFT1977 BOS → MCO Jul 23, 14:45 UTCJul 23, 17:30 UTC2h 45m
2026-07-23 FFT1978 MCO → BOS Jul 23, 10:25 UTCJul 23, 12:55 UTC2h 30m
2026-07-23 FFT2280 CLE → MCO Jul 23, 01:50 UTCJul 23, 03:45 UTC1h 55m
2026-07-23 FFT2280 CLE → MCO Jul 23, 01:57 UTCJul 23, 03:44 UTC1h 47m
2026-07-22 FFT1055 MCO → CLE Jul 22, 22:15 UTCJul 23, 00:20 UTC2h 5m
2026-07-22 FFT1111 - Jul 22, 19:10 UTCJul 22, 20:25 UTC1h 15m
2026-07-22 FFT1742 RSW → CVG Jul 22, 15:10 UTCJul 22, 17:35 UTC2h 25m
2026-07-22 FFT1742 RSW → CVG Jul 22, 14:53 UTCJul 22, 17:28 UTC2h 35m
2026-07-22 FFT1417 - Jul 22, 11:15 UTCJul 22, 13:10 UTC1h 55m
2026-07-22 FFT2287 - Jul 22, 01:55 UTCJul 22, 03:30 UTC1h 35m
2026-07-22 FFT2287 ORF → MCO Jul 22, 01:47 UTCJul 22, 03:25 UTC1h 38m
2026-07-21 FFT2288 MCO → ORF Jul 21, 22:50 UTCJul 22, 00:35 UTC1h 45m
2026-07-21 FFT3916 - Jul 21, 19:10 UTCJul 21, 21:20 UTC2h 10m
2026-07-21 FFT2684 TPA → CLE Jul 21, 14:30 UTCJul 21, 16:50 UTC2h 20m
2026-07-21 FFT1334 MCO → LGA Jul 21, 11:05 UTCJul 21, 13:15 UTC2h 10m
2026-07-21 FFT3097 ATL → DFW Jul 21, 01:45 UTCJul 21, 03:40 UTC1h 55m
2026-07-20 FFT24 ATL → ATL Jul 20, 15:05 UTCJul 20, 23:25 UTC8h 20m
2026-07-20 FFT1404 IAH → ATL Jul 20, 11:15 UTCJul 20, 13:00 UTC1h 45m
2026-07-20 FFT4075 - Jul 20, 02:40 UTCJul 20, 04:10 UTC1h 30m
2026-07-20 FFT4075 ATL → IAH Jul 20, 02:15 UTCJul 20, 04:09 UTC1h 54m
2026-07-19 FFT3083 - Jul 19, 23:25 UTCJul 20, 00:10 UTC45m
2026-07-19 FFT1550 SFO → DFW Jul 19, 21:30 UTCJul 19, 22:15 UTC45m
2026-07-19 FFT4731 JFK → ATL Jul 19, 19:15 UTCJul 19, 19:35 UTC20m
2026-07-19 FFT4731 JFK → ATL Jul 19, 17:15 UTCJul 19, 19:35 UTC2h 20m
2026-07-19 FFT4731 JFK → ATL Jul 19, 17:13 UTCJul 19, 19:00 UTC1h 47m
2026-07-19 FFT4732 ATL → JFK Jul 19, 14:00 UTCJul 19, 15:45 UTC1h 45m
2026-07-19 FFT24 - Jul 19, 11:10 UTCJul 19, 12:10 UTC1h 0m
2026-07-18 FFT24 ATL → MCO Jul 18, 15:10 UTCJul 19, 00:15 UTC9h 5m
2026-07-18 FFT3287 LGA → ATL Jul 18, 11:20 UTCJul 18, 13:10 UTC1h 50m
2026-07-18 FFT3288 ATL → LGA Jul 18, 00:50 UTCJul 18, 02:40 UTC1h 50m
2026-07-17 FFT24 PUJ → ATL Jul 17, 19:45 UTCJul 17, 23:00 UTC3h 15m
2026-07-17 FFT24 ATL → ATL Jul 17, 15:05 UTCJul 17, 23:05 UTC8h 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 N718FR page for operator, model, and routing details .

Mode-S A99A52 frequently asked

What is Mode-S code A99A52?
A99A52 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N718FR.
Where is Mode-S A99A52 registered?
Mode-S code A99A52 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 A99A52 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A99A52, octal 52315122, decimal 11,115,090.
What flights does A99A52 operate?
Mode-S A99A52 has broadcast 20 distinct callsigns, including FFT2668, FFT2279, FFT3506, FFT2280, FFT4990.