Apparatus

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sensors Mode-S transponder

A45210

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N378FR · AIRBUS A-320neo · operated by BANK OF UTAH TRUSTEE

Hex
A45210
Octal
51051020
Decimal
10,768,912
Country
US
Tail
N378FR
Type
A20N
No current signal · last broadcast Jul 26, 19:40 UTC
Flights observed
596
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:40 UTC

Last known position

Most recent position reported by Mode-S A45210.

Country allocation

The ICAO 24-bit address A45210 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
FFT4076 - 8 2026-06-29
FFT2399 - 8 2026-06-29
FFT1824 Frontier Airlines 7 2026-05-22
FFT3016 - 6 2026-07-13
FFT2272 Frontier Airlines 6 2026-07-24
FFT3999 Frontier Airlines 5 2026-04-21
FFT3442 Frontier Airlines 5 2026-07-25
FFT3378 Frontier Airlines 5 2026-07-24
FFT3292 - 5 2026-07-13
FFT2135 Frontier Airlines 5 2026-07-25
FFT1966 - 5 2026-07-13
FFT4946 Frontier Airlines 4 2026-06-07
FFT4435 Frontier Airlines 4 2026-06-10
FFT4405 Frontier Airlines 4 2026-07-24
FFT3215 - 4 2026-06-28
FFT3059 Frontier Airlines 4 2026-07-24
FFT3053 - 4 2026-07-07
FFT2996 - 4 2026-06-15
FFT2907 Frontier Airlines 4 2026-06-06
FFT2676 Frontier Airlines 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT2232 ONT → LAS Jul 26, 18:55 UTCJul 26, 19:40 UTC45m
2026-07-26 FFT2678 SFO → ONT Jul 26, 16:50 UTCJul 26, 17:50 UTC1h 0m
2026-07-26 FFT2678 SFO → ONT Jul 26, 16:52 UTCJul 26, 17:47 UTC55m
2026-07-26 FFT3019 LAS → SFO Jul 26, 14:40 UTCJul 26, 15:50 UTC1h 10m
2026-07-26 FFT4551 MIA → LAS Jul 26, 05:00 UTCJul 26, 09:05 UTC4h 6m
2026-07-26 FFT1068 IAH → MIA Jul 26, 01:45 UTCJul 26, 03:50 UTC2h 5m
2026-07-25 FFT2395 BUF → RSW Jul 25, 22:15 UTCJul 26, 00:15 UTC2h 0m
2026-07-25 FFT3037 MIA → CLT Jul 25, 19:20 UTCJul 25, 21:00 UTC1h 40m
2026-07-25 FFT2676 DFW → MIA Jul 25, 15:20 UTCJul 25, 17:40 UTC2h 20m
2026-07-25 FFT2135 MIA → DFW Jul 25, 11:10 UTCJul 25, 13:50 UTC2h 40m
2026-07-25 FFT3442 ATL → MIA Jul 25, 02:15 UTCJul 25, 03:40 UTC1h 25m
2026-07-25 FFT3442 ATL → MIA Jul 25, 02:17 UTCJul 25, 03:37 UTC1h 20m
2026-07-24 FFT4405 MIA → ATL Jul 24, 23:15 UTCJul 25, 00:40 UTC1h 25m
2026-07-24 FFT2272 ATL → LGA Jul 24, 18:55 UTCJul 24, 20:20 UTC1h 25m
2026-07-24 FFT3059 MIA → ATL Jul 24, 15:40 UTCJul 24, 17:05 UTC1h 25m
2026-07-24 FFT3377 SJU → MIA Jul 24, 11:40 UTCJul 24, 13:55 UTC2h 15m
2026-07-24 FFT3378 LGA → MIA Jul 24, 03:50 UTCJul 24, 04:00 UTC10m
2026-07-24 FFT3378 LGA → MIA Jul 24, 01:50 UTCJul 24, 02:20 UTC30m
2026-07-23 FFT2335 PHL → PHX Jul 23, 22:25 UTCJul 24, 00:00 UTC1h 35m
2026-07-23 FFT3322 MIA → RDU Jul 23, 19:15 UTCJul 23, 20:55 UTC1h 40m
2026-07-23 FFT2676 DFW → MIA Jul 23, 15:17 UTCJul 23, 17:48 UTC2h 31m
2026-07-23 FFT2676 DFW → MIA Jul 23, 15:15 UTCJul 23, 17:50 UTC2h 35m
2026-07-23 FFT2135 MIA → DFW Jul 23, 10:55 UTCJul 23, 13:30 UTC2h 35m
2026-07-23 FFT2135 MIA → DFW Jul 23, 11:03 UTCJul 23, 13:29 UTC2h 26m
2026-07-23 FFT1068 IAH → MIA Jul 23, 01:55 UTCJul 23, 03:55 UTC2h 0m
2026-07-23 FFT1068 IAH → MIA Jul 23, 01:50 UTCJul 23, 03:54 UTC2h 4m
2026-07-22 FFT2395 BUF → RSW Jul 22, 22:15 UTCJul 23, 00:15 UTC2h 0m
2026-07-22 FFT3037 MIA → CLT Jul 22, 19:00 UTCJul 22, 20:35 UTC1h 35m
2026-07-22 FFT4406 ATL → MIA Jul 22, 16:00 UTCJul 22, 17:30 UTC1h 30m
2026-07-22 FFT2483 MDW → SFO Jul 22, 13:30 UTCJul 22, 14:50 UTC1h 20m
2026-07-22 FFT1196 BUR → LAS Jul 22, 04:05 UTCJul 22, 04:40 UTC35m
2026-07-22 FFT1195 MCO → SAN Jul 22, 02:05 UTCJul 22, 02:50 UTC45m
2026-07-22 FFT1195 MCO → SAN Jul 22, 01:13 UTCJul 22, 02:49 UTC1h 36m
2026-07-21 FFT3923 ATL → LAS Jul 21, 01:55 UTCJul 21, 05:30 UTC3h 35m
2026-07-20 FFT3046 MSP → ATL Jul 20, 21:55 UTCJul 21, 00:05 UTC2h 10m
2026-07-20 FFT3045 ATL → MSP Jul 20, 18:01 UTCJul 20, 20:25 UTC2h 24m
2026-07-20 FFT3045 ATL → MSP Jul 20, 17:55 UTCJul 20, 20:25 UTC2h 30m
2026-07-20 FFT2297 PHL → FLL Jul 20, 13:00 UTCJul 20, 14:30 UTC1h 30m
2026-07-20 FFT2297 PHL → FLL Jul 20, 12:15 UTCJul 20, 12:35 UTC20m
2026-07-20 FFT1004 ATL → PHL Jul 20, 09:45 UTCJul 20, 11:20 UTC1h 35m
2026-07-20 FFT3013 - Jul 20, 03:10 UTCJul 20, 04:25 UTC1h 15m
2026-07-20 FFT3013 FLL → ATL Jul 20, 03:06 UTCJul 20, 04:24 UTC1h 18m
2026-07-19 FFT2959 IAD → FLL Jul 19, 23:20 UTCJul 20, 01:30 UTC2h 10m
2026-07-19 FFT4410 ATL → IAD Jul 19, 20:05 UTCJul 19, 21:30 UTC1h 25m
2026-07-19 FFT4410 ATL → IAD Jul 19, 20:01 UTCJul 19, 21:23 UTC1h 22m
2026-07-19 FFT3071 ORF → ATL Jul 19, 16:20 UTCJul 19, 17:40 UTC1h 20m
2026-07-19 FFT3072 ATL → ORF Jul 19, 13:45 UTCJul 19, 15:05 UTC1h 20m
2026-07-19 FFT4873 FLL → ATL Jul 19, 10:20 UTCJul 19, 11:45 UTC1h 25m
2026-07-19 FFT2174 ATL → FLL Jul 19, 04:30 UTCJul 19, 05:55 UTC1h 25m
2026-07-19 FFT3500 - Jul 19, 00:35 UTCJul 19, 02:10 UTC1h 35m

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 N378FR page for operator, model, and routing details .

Mode-S A45210 frequently asked

What is Mode-S code A45210?
A45210 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N378FR.
Where is Mode-S A45210 registered?
Mode-S code A45210 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 A45210 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A45210, octal 51051020, decimal 10,768,912.
What flights does A45210 operate?
Mode-S A45210 has broadcast 20 distinct callsigns, including FFT4076, FFT2399, FFT1824, FFT3016, FFT2272.