Apparatus

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sensors Mode-S transponder

A816CA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N620FR · AIRBUS A-321neo · operated by BANK OF UTAH TRUSTEE

Hex
A816CA
Octal
52013312
Decimal
11,015,882
Country
US
Tail
N620FR
Type
A21N
Broadcasting now · callsign FFT2440 · 29,000 ft
Flights observed
437
Distinct callsigns
20
Country
US
Last broadcast
28m ago

Current position

A816CA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A816CA 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
FFT3990 Frontier Airlines 6 2026-06-15
FFT229 - 6 2026-07-03
FFT4689 - 5 2026-06-16
FFT2745 Frontier Airlines 5 2026-04-21
FFT2496 - 5 2026-07-03
FFT2069 Frontier Airlines 5 2026-05-28
FFT1755 - 5 2026-06-17
FFT2970 Frontier Airlines 4 2026-06-16
FFT2925 Frontier Airlines 4 2026-04-20
FFT2746 Frontier Airlines 4 2026-04-22
FFT228 - 4 2026-07-03
FFT2274 Frontier Airlines 4 2026-06-15
FFT1993 Frontier Airlines 4 2026-05-07
FFT1742 - 4 2026-07-09
FFT1602 Frontier Airlines 4 2026-06-21
FFT4699 Frontier Airlines 3 2026-05-25
FFT4455 - 3 2026-06-29
FFT4161 Frontier Airlines 3 2026-06-14
FFT4144 Frontier Airlines 3 2026-05-29
FFT4131 Frontier Airlines 3 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT2440 - Jul 14, 12:20 UTCJul 14, 14:30 UTC2h 10m
2026-07-13 FFT4418 DEN → DEN Jul 13, 22:35 UTCJul 14, 02:20 UTC3h 45m
2026-07-13 FFT2513 PHL → DEN Jul 13, 17:35 UTCJul 13, 20:35 UTC3h 0m
2026-07-13 FFT2298 ATL → PHL Jul 13, 14:30 UTCJul 13, 16:10 UTC1h 40m
2026-07-13 FFT4873 FLL → ATL Jul 13, 10:20 UTCJul 13, 11:45 UTC1h 25m
2026-07-13 FFT2174 ATL → FLL Jul 13, 04:05 UTCJul 13, 05:25 UTC1h 20m
2026-07-12 FFT4702 AUS → ATL Jul 12, 23:40 UTCJul 13, 01:50 UTC2h 10m
2026-07-12 FFT4211 ATL → AUS Jul 12, 20:10 UTCJul 12, 22:25 UTC2h 15m
2026-07-12 FFT1407 - Jul 12, 16:35 UTCJul 12, 18:20 UTC1h 45m
2026-07-12 FFT1408 ATL → BUF Jul 12, 13:55 UTCJul 12, 15:25 UTC1h 30m
2026-07-12 FFT1448 - Jul 12, 08:01 UTCJul 12, 12:10 UTC4h 10m
2026-07-12 FFT4593 - Jul 12, 02:25 UTCJul 12, 03:25 UTC1h 0m
2026-07-11 FFT4145 - Jul 11, 20:00 UTCJul 12, 00:25 UTC4h 25m
2026-07-11 FFT2511 - Jul 11, 16:15 UTCJul 11, 18:35 UTC2h 20m
2026-07-11 FFT2512 MCO → EWR Jul 11, 12:15 UTCJul 11, 14:35 UTC2h 20m
2026-07-11 FFT3505 - Jul 11, 05:10 UTCJul 11, 06:01 UTC50m
2026-07-11 FFT3505 - Jul 11, 03:35 UTCJul 11, 03:50 UTC15m
2026-07-10 FFT1746 MCO → SJU Jul 10, 23:50 UTCJul 11, 02:30 UTC2h 40m
2026-07-10 FFT4725 - Jul 10, 18:15 UTCJul 10, 19:05 UTC50m
2026-07-10 FFT4725 - Jul 10, 16:35 UTCJul 10, 16:50 UTC15m
2026-07-10 FFT2250 - Jul 10, 14:40 UTCJul 10, 15:00 UTC20m
2026-07-10 FFT2250 - Jul 10, 12:25 UTCJul 10, 13:10 UTC45m
2026-07-10 FFT2280 CLE → MCO Jul 10, 01:45 UTCJul 10, 03:40 UTC1h 55m
2026-07-09 FFT1055 MCO → CLE Jul 9, 22:10 UTCJul 10, 00:15 UTC2h 5m
2026-07-09 FFT1111 - Jul 9, 18:40 UTCJul 9, 20:00 UTC1h 20m
2026-07-09 FFT1742 - Jul 9, 14:50 UTCJul 9, 17:10 UTC2h 20m
2026-07-09 FFT1417 - Jul 9, 11:15 UTCJul 9, 13:15 UTC2h 0m
2026-07-09 FFT1417 MCO → IAH Jul 9, 11:13 UTCJul 9, 13:10 UTC1h 57m
2026-07-09 FFT1876 LAS → MCO Jul 9, 05:00 UTCJul 9, 09:00 UTC4h 0m
2026-07-09 FFT1850 HAF → LAS Jul 9, 00:10 UTCJul 9, 01:10 UTC1h 0m
2026-07-08 FFT4157 - Jul 8, 20:45 UTCJul 8, 21:55 UTC1h 10m
2026-07-08 FFT1875 MCO → LAS Jul 8, 14:25 UTCJul 8, 18:35 UTC4h 10m
2026-07-08 FFT1541 PHL → MCO Jul 8, 02:45 UTCJul 8, 04:50 UTC2h 5m
2026-07-08 FFT1541 PHL → MCO Jul 8, 02:31 UTCJul 8, 04:46 UTC2h 15m
2026-07-07 FFT1165 PHL → MCO Jul 7, 21:20 UTCJul 7, 23:15 UTC1h 55m
2026-07-07 FFT1165 PHL → MCO Jul 7, 19:15 UTCJul 7, 19:25 UTC10m
2026-07-07 FFT3306 - Jul 7, 17:10 UTCJul 7, 17:30 UTC20m
2026-07-07 FFT3306 - Jul 7, 14:45 UTCJul 7, 15:40 UTC55m
2026-07-07 FFT3305 - Jul 7, 10:40 UTCJul 7, 13:30 UTC2h 50m
2026-07-07 FFT3004 - Jul 7, 01:10 UTCJul 7, 04:10 UTC3h 0m
2026-07-06 FFT3003 - Jul 6, 21:30 UTCJul 6, 23:35 UTC2h 5m
2026-07-06 FFT3003 - Jul 6, 19:45 UTCJul 6, 20:00 UTC15m
2026-07-06 FFT2082 - Jul 6, 17:35 UTCJul 6, 17:55 UTC20m
2026-07-06 FFT2082 - Jul 6, 14:45 UTCJul 6, 16:05 UTC1h 20m
2026-07-06 FFT2633 - Jul 6, 11:00 UTCJul 6, 12:20 UTC1h 20m
2026-07-05 FFT1080 - Jul 5, 20:20 UTCJul 5, 21:50 UTC1h 30m
2026-07-05 FFT3511 BOS → ATL Jul 5, 16:15 UTCJul 5, 18:45 UTC2h 30m
2026-07-05 FFT3512 ATL → BOS Jul 5, 12:25 UTCJul 5, 14:30 UTC2h 5m
2026-07-05 FFT2608 PHX → ATL Jul 5, 06:55 UTCJul 5, 10:15 UTC3h 20m
2026-07-05 FFT2608 PHX → ATL Jul 5, 06:53 UTCJul 5, 10:16 UTC3h 23m

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 N620FR page for operator, model, and routing details .

Mode-S A816CA frequently asked

What is Mode-S code A816CA?
A816CA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N620FR.
Where is Mode-S A816CA registered?
Mode-S code A816CA 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 A816CA broadcasting right now?
Yes. Mode-S A816CA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A816CA, octal 52013312, decimal 11,015,882.
What flights does A816CA operate?
Mode-S A816CA has broadcast 20 distinct callsigns, including FFT3990, FFT229, FFT4689, FFT2745, FFT2496.