Apparatus

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sensors Mode-S transponder

A4380F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N371FR · AIRBUS A-320neo · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A4380F
Octal
51034017
Decimal
10,762,255
Country
US
Tail
N371FR
Type
A20N
No current signal · last broadcast 5h ago
Flights observed
240
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A4380F.

Country allocation

The ICAO 24-bit address A4380F 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
FFT3046 Frontier Airlines 5 2026-06-05
FFT2836 Frontier Airlines 5 2026-05-24
FFT4406 Frontier Airlines 4 2026-06-02
FFT3045 Frontier Airlines 4 2026-06-05
FFT2269 Frontier Airlines 4 2026-05-24
FFT3980 Frontier Airlines 3 2026-04-24
FFT3371 Frontier Airlines 3 2026-05-18
FFT2932 Frontier Airlines 3 2026-05-28
FFT2835 Frontier Airlines 3 2026-05-21
FFT2609 Frontier Airlines 3 2026-05-27
FFT2541 Frontier Airlines 3 2026-05-16
FFT2483 Frontier Airlines 3 2026-06-02
FFT2388 Frontier Airlines 3 2026-05-27
FFT1984 Frontier Airlines 3 2026-05-27
FFT180 Frontier Airlines 3 2026-05-24
FFT1668 Frontier Airlines 3 2026-05-18
FFT1381 Frontier Airlines 3 2026-05-18
FFT1258 Frontier Airlines 3 2026-05-16
FFT1257 Frontier Airlines 3 2026-05-30
FFT4989 Frontier Airlines 2 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-08 FFT3442 ATL → MIA Jun 8, 01:35 UTCJun 8, 03:00 UTC1h 25m
2026-06-07 FFT1123 FLL → ATL Jun 7, 21:50 UTCJun 7, 23:10 UTC1h 20m
2026-06-07 FFT3014 ATL → TPA Jun 7, 19:05 UTCJun 7, 20:35 UTC1h 30m
2026-06-07 FFT3014 ATL → TPA Jun 7, 19:10 UTCJun 7, 20:30 UTC1h 20m
2026-06-07 FFT1116 LAS → ATL Jun 7, 13:55 UTCJun 7, 17:35 UTC3h 40m
2026-06-07 FFT1821 CLE → LAS Jun 7, 04:20 UTCJun 7, 08:25 UTC4h 5m
2026-06-06 FFT3232 LAS → CLE Jun 6, 20:19 UTCJun 7, 00:00 UTC3h 40m
2026-06-06 FFT4277 IAD → LAS Jun 6, 13:34 UTCJun 6, 17:49 UTC4h 15m
2026-06-06 FFT4278 SAN → DFW Jun 6, 07:45 UTCJun 6, 11:45 UTC4h 0m
2026-06-05 FFT3923 ATL → LAS Jun 5, 23:20 UTCJun 6, 03:15 UTC3h 55m
2026-06-05 FFT3046 MSP → ATL Jun 5, 19:25 UTCJun 5, 21:25 UTC2h 0m
2026-06-05 FFT3045 ATL → MSP Jun 5, 16:00 UTCJun 5, 18:05 UTC2h 5m
2026-06-05 FFT2297 PHL → FLL Jun 5, 12:50 UTCJun 5, 14:20 UTC1h 30m
2026-06-05 FFT1004 ATL → PHL Jun 5, 10:15 UTCJun 5, 11:45 UTC1h 30m
2026-06-05 FFT2717 FLL → ATL Jun 5, 01:25 UTCJun 5, 02:50 UTC1h 25m
2026-06-05 FFT2717 FLL → ATL Jun 5, 01:31 UTCJun 5, 02:49 UTC1h 18m
2026-06-04 FFT2959 IAD → FLL Jun 4, 21:45 UTCJun 4, 23:50 UTC2h 5m
2026-06-04 FFT4410 ATL → IAD Jun 4, 18:35 UTCJun 4, 19:50 UTC1h 15m
2026-06-04 FFT3059 MIA → ATL Jun 4, 15:50 UTCJun 4, 17:15 UTC1h 25m
2026-06-04 FFT3321 RDU → MIA Jun 4, 12:15 UTCJun 4, 13:55 UTC1h 40m
2026-06-04 FFT3322 MIA → RDU Jun 4, 09:10 UTCJun 4, 11:00 UTC1h 50m
2026-06-04 FFT3442 ATL → MIA Jun 4, 00:50 UTCJun 4, 02:25 UTC1h 35m
2026-06-03 FFT4405 MIA → ATL Jun 3, 21:25 UTCJun 3, 22:55 UTC1h 30m
2026-06-03 FFT2272 ATL → LGA Jun 3, 18:35 UTCJun 3, 20:00 UTC1h 25m
2026-06-03 FFT2272 ATL → LGA Jun 3, 18:45 UTCJun 3, 20:00 UTC1h 15m
2026-06-03 FFT3059 MIA → ATL Jun 3, 15:35 UTCJun 3, 17:00 UTC1h 25m
2026-06-02 FFT4406 ATL → MIA Jun 2, 15:56 UTCJun 2, 17:09 UTC1h 13m
2026-06-02 FFT4406 ATL → MIA Jun 2, 15:50 UTCJun 2, 17:10 UTC1h 20m
2026-06-02 FFT2483 MDW → SFO Jun 2, 12:10 UTCJun 2, 13:45 UTC1h 35m
2026-06-02 FFT2483 MDW → SFO Jun 2, 12:23 UTCJun 2, 13:42 UTC1h 19m
2026-06-01 FFT3699 CLT → MIA Jun 1, 21:35 UTCJun 1, 23:40 UTC2h 5m
2026-06-01 FFT2396 RSW → BUF Jun 1, 17:50 UTCJun 1, 19:55 UTC2h 5m
2026-06-01 FFT1067 CVG → MCO Jun 1, 13:40 UTCJun 1, 16:05 UTC2h 25m
2026-06-01 FFT1462 MDW → PHL Jun 1, 02:20 UTCJun 1, 04:25 UTC2h 5m
2026-05-31 FFT3121 CLT → IAH May 31, 22:20 UTCJun 1, 00:40 UTC2h 20m
2026-05-31 FFT3037 MIA → CLT May 31, 19:10 UTCMay 31, 20:45 UTC1h 35m
2026-05-31 FFT4406 ATL → MIA May 31, 15:55 UTCMay 31, 17:20 UTC1h 25m
2026-05-31 FFT4406 ATL → MIA May 31, 15:51 UTCMay 31, 17:24 UTC1h 33m
2026-05-31 FFT2483 MDW → SFO May 31, 12:35 UTCMay 31, 14:05 UTC1h 30m
2026-05-31 FFT4552 LAS → MIA May 31, 08:25 UTCMay 31, 10:30 UTC2h 5m
2026-05-30 FFT1052 LAS → DFW May 30, 21:05 UTCMay 30, 23:15 UTC2h 10m
2026-05-30 FFT1051 DFW → LAS May 30, 17:05 UTCMay 30, 19:35 UTC2h 30m
2026-05-30 FFT1051 DFW → LAS May 30, 17:06 UTCMay 30, 19:33 UTC2h 27m
2026-05-30 FFT3886 LAS → DFW May 30, 13:15 UTCMay 30, 15:45 UTC2h 30m
2026-05-30 FFT1257 TPA → LAS May 30, 03:05 UTCMay 30, 07:45 UTC4h 40m
2026-05-29 FFT3323 ISP → TPA May 29, 22:56 UTCMay 30, 01:20 UTC2h 24m
2026-05-29 FFT3323 ISP → TPA May 29, 22:35 UTCMay 30, 01:20 UTC2h 45m
2026-05-29 FFT3536 PBI → PHL May 29, 19:10 UTCMay 29, 21:30 UTC2h 20m
2026-05-29 FFT3536 PBI → PHL May 29, 19:20 UTCMay 29, 21:28 UTC2h 8m
2026-05-29 FFT3782 DTW → ATL May 29, 15:05 UTCMay 29, 16:10 UTC1h 5m

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 N371FR page for operator, model, and routing details .

Mode-S A4380F frequently asked

What is Mode-S code A4380F?
A4380F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N371FR.
Where is Mode-S A4380F registered?
Mode-S code A4380F 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 A4380F broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4380F, octal 51034017, decimal 10,762,255.
What flights does A4380F operate?
Mode-S A4380F has broadcast 20 distinct callsigns, including FFT3046, FFT2836, FFT4406, FFT3045, FFT2269.