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
Transponder active on ground
Flights observed
501
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A816CA.

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
FFT22 - 6 2026-07-18
FFT4689 - 5 2026-06-16
FFT2745 Frontier Airlines 5 2026-04-21
FFT2496 - 5 2026-07-03
FFT2069 Frontier Airlines 5 2026-05-28
FFT1993 - 5 2026-07-17
FFT1755 - 5 2026-06-17
FFT1602 - 5 2026-07-18
FFT9420 - 4 2026-07-23
FFT3287 Frontier Airlines 4 2026-07-25
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
FFT180 Frontier Airlines 4 2026-07-21
FFT1742 - 4 2026-07-09
FFT4699 Frontier Airlines 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT2960 FLL → IAD Jul 26, 21:20 UTCJul 26, 22:30 UTC1h 10m
2026-07-26 FFT4411 BWI → FLL Jul 26, 17:30 UTCJul 26, 19:40 UTC2h 10m
2026-07-26 FFT4412 FLL → BWI Jul 26, 13:55 UTCJul 26, 16:05 UTC2h 10m
2026-07-26 FFT4412 FLL → BWI Jul 26, 13:44 UTCJul 26, 16:13 UTC2h 29m
2026-07-26 FFT2172 MCO → BDL Jul 26, 10:45 UTCJul 26, 12:30 UTC1h 45m
2026-07-25 FFT25 ATL → PUJ Jul 25, 16:40 UTCJul 26, 01:00 UTC8h 20m
2026-07-25 FFT3287 LGA → ATL Jul 25, 12:54 UTCJul 25, 14:44 UTC1h 50m
2026-07-25 FFT3287 LGA → ATL Jul 25, 13:00 UTCJul 25, 14:45 UTC1h 45m
2026-07-25 FFT3288 ATL → LGA Jul 25, 00:50 UTCJul 25, 02:30 UTC1h 40m
2026-07-24 FFT152 CUN → ATL Jul 24, 20:35 UTCJul 24, 22:50 UTC2h 15m
2026-07-24 FFT153 ATL → CUN Jul 24, 16:40 UTCJul 24, 18:45 UTC2h 5m
2026-07-24 FFT4427 - Jul 24, 13:00 UTCJul 24, 14:40 UTC1h 40m
2026-07-24 FFT2510 TPA → GRR Jul 24, 09:45 UTCJul 24, 11:25 UTC1h 40m
2026-07-24 FFT3691 IAD → ATL Jul 24, 05:00 UTCJul 24, 06:15 UTC1h 15m
2026-07-24 FFT2960 FLL → IAD Jul 24, 01:55 UTCJul 24, 03:55 UTC2h 0m
2026-07-23 FFT4411 BWI → FLL Jul 23, 21:55 UTCJul 24, 00:10 UTC2h 15m
2026-07-23 FFT4412 FLL → BWI Jul 23, 15:50 UTCJul 23, 18:30 UTC2h 40m
2026-07-23 FFT2172 MCO → BDL Jul 23, 12:05 UTCJul 23, 13:35 UTC1h 30m
2026-07-23 FFT9420 IAD → ATL Jul 23, 09:05 UTCJul 23, 10:20 UTC1h 15m
2026-07-23 FFT2960 FLL → IAD Jul 23, 05:30 UTCJul 23, 07:35 UTC2h 5m
2026-07-23 FFT4411 BWI → FLL Jul 23, 02:00 UTCJul 23, 04:15 UTC2h 15m
2026-07-22 FFT4004 MCO → BWI Jul 22, 22:15 UTCJul 23, 00:00 UTC1h 45m
2026-07-22 FFT4018 DFW → MCO Jul 22, 18:05 UTCJul 22, 20:15 UTC2h 10m
2026-07-22 FFT2885 MCO → DFW Jul 22, 14:00 UTCJul 22, 16:15 UTC2h 15m
2026-07-22 FFT1541 PHL → MCO Jul 22, 11:10 UTCJul 22, 12:10 UTC1h 0m
2026-07-21 FFT180 SDQ → PHL Jul 21, 11:55 UTCJul 21, 20:10 UTC8h 15m
2026-07-21 FFT3340 DEN → PHL Jul 21, 06:45 UTCJul 21, 09:40 UTC2h 55m
2026-07-21 FFT3339 PHL → DEN Jul 21, 01:10 UTCJul 21, 04:35 UTC3h 25m
2026-07-21 FFT3339 PHL → DEN Jul 21, 00:55 UTCJul 21, 01:00 UTC5m
2026-07-20 FFT2552 ATL → PHL Jul 20, 21:50 UTCJul 20, 23:30 UTC1h 40m
2026-07-20 FFT1101 PHL → ATL Jul 20, 17:55 UTCJul 20, 19:25 UTC1h 30m
2026-07-20 FFT2298 - Jul 20, 14:35 UTCJul 20, 16:10 UTC1h 35m
2026-07-20 FFT2551 PHL → ATL Jul 20, 10:55 UTCJul 20, 12:30 UTC1h 35m
2026-07-20 FFT4440 - Jul 20, 03:40 UTCJul 20, 05:45 UTC2h 5m
2026-07-20 FFT1983 ISP → FLL Jul 20, 00:40 UTCJul 20, 02:10 UTC1h 30m
2026-07-19 FFT4353 PHL → CLT Jul 19, 21:50 UTCJul 19, 23:00 UTC1h 10m
2026-07-19 FFT2022 - Jul 19, 18:05 UTCJul 19, 19:20 UTC1h 15m
2026-07-19 FFT2008 FLL → DTW Jul 19, 13:55 UTCJul 19, 16:25 UTC2h 30m
2026-07-19 FFT2609 PHL → FLL Jul 19, 10:10 UTCJul 19, 12:25 UTC2h 15m
2026-07-18 FFT23 - Jul 18, 20:25 UTCJul 18, 21:15 UTC50m
2026-07-18 FFT22 - Jul 18, 12:50 UTCJul 18, 14:05 UTC1h 15m
2026-07-18 FFT22 PHL → PUJ Jul 18, 12:46 UTCJul 18, 16:20 UTC3h 34m
2026-07-18 FFT22 - Jul 18, 12:30 UTCJul 18, 12:35 UTC5m
2026-07-18 FFT22 - Jul 18, 12:15 UTCJul 18, 12:20 UTC5m
2026-07-18 FFT22 - Jul 18, 11:50 UTCJul 18, 11:55 UTC5m
2026-07-18 FFT1602 LAS → PHL Jul 18, 05:55 UTCJul 18, 10:15 UTC4h 20m
2026-07-18 FFT2017 STL → LAS Jul 18, 01:05 UTCJul 18, 03:50 UTC2h 46m
2026-07-17 FFT3108 LAS → STL Jul 17, 20:35 UTCJul 17, 23:30 UTC2h 55m
2026-07-17 FFT1993 DEN → LAS Jul 17, 16:34 UTCJul 17, 18:00 UTC1h 25m
2026-07-17 FFT2211 - Jul 17, 11:45 UTCJul 17, 14:10 UTC2h 25m

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?
Mode-S A816CA 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 A816CA, octal 52013312, decimal 11,015,882.
What flights does A816CA operate?
Mode-S A816CA has broadcast 20 distinct callsigns, including FFT3990, FFT229, FFT22, FFT4689, FFT2745.