sensors Mode-S transponder

A39DCA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N332FR · AIRBUS A-320neo · operated by WELLS FARGO TRUST CO NA TRUSTEE

Hex
A39DCA
Octal
50716712
Decimal
10,722,762
Country
US
Tail
N332FR
Type
A20N
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
559
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S A39DCA.

Country allocation

The ICAO 24-bit address A39DCA 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
FFT1113 - 7 2026-07-08
FFT4602 Frontier Airlines 6 2026-07-23
FFT3417 Frontier Airlines 6 2026-05-25
FFT2746 Frontier Airlines 6 2026-07-19
FFT2549 - 6 2026-07-16
FFT4406 - 5 2026-06-26
FFT4405 - 5 2026-07-04
FFT3292 Frontier Airlines 5 2026-07-26
FFT3215 Frontier Airlines 5 2026-07-23
FFT3075 - 5 2026-06-25
FFT2483 - 5 2026-06-26
FFT2410 Frontier Airlines 5 2026-07-25
FFT4771 Frontier Airlines 4 2026-07-23
FFT4130 Frontier Airlines 4 2026-05-24
FFT3536 Frontier Airlines 4 2026-05-22
FFT3442 - 4 2026-07-06
FFT3418 Frontier Airlines 4 2026-05-24
FFT3323 Frontier Airlines 4 2026-05-22
FFT3322 - 4 2026-07-06
FFT3291 Frontier Airlines 4 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT4401 LAS → SFO Jul 26, 22:10 UTCJul 26, 22:25 UTC15m
2026-07-26 FFT3292 LAX → LAS Jul 26, 19:25 UTCJul 26, 20:15 UTC50m
2026-07-26 FFT3292 LAX → LAS Jul 26, 19:19 UTCJul 26, 20:06 UTC47m
2026-07-26 FFT4129 SLC → LAX Jul 26, 16:25 UTCJul 26, 17:55 UTC1h 30m
2026-07-26 FFT3016 LAS → SLC Jul 26, 14:20 UTCJul 26, 15:20 UTC1h 0m
2026-07-26 FFT1257 TPA → LAS Jul 26, 02:50 UTCJul 26, 06:55 UTC4h 6m
2026-07-26 FFT1257 TPA → LAS Jul 26, 02:52 UTCJul 26, 06:52 UTC4h 0m
2026-07-25 FFT1491 CLE → TPA Jul 25, 22:25 UTCJul 26, 00:25 UTC2h 0m
2026-07-25 FFT3073 RDU → CLE Jul 25, 19:25 UTCJul 25, 20:30 UTC1h 5m
2026-07-25 FFT3074 CLE → RDU Jul 25, 17:15 UTCJul 25, 18:20 UTC1h 5m
2026-07-25 FFT2410 ATL → CLE Jul 25, 14:35 UTCJul 25, 15:55 UTC1h 20m
2026-07-25 FFT2467 CLE → ATL Jul 25, 10:55 UTCJul 25, 12:15 UTC1h 20m
2026-07-25 FFT2184 TPA → CLE Jul 25, 02:05 UTCJul 25, 04:05 UTC2h 0m
2026-07-24 FFT1491 CLE → TPA Jul 24, 22:30 UTCJul 25, 01:00 UTC2h 30m
2026-07-24 FFT3073 RDU → CLE Jul 24, 19:35 UTCJul 24, 20:40 UTC1h 5m
2026-07-24 FFT3074 CLE → RDU Jul 24, 17:25 UTCJul 24, 18:25 UTC1h 0m
2026-07-24 FFT3074 CLE → RDU Jul 24, 17:12 UTCJul 24, 18:24 UTC1h 12m
2026-07-24 FFT2410 ATL → CLE Jul 24, 14:40 UTCJul 24, 15:55 UTC1h 15m
2026-07-24 FFT3216 LAX → ATL Jul 24, 07:00 UTCJul 24, 10:50 UTC3h 50m
2026-07-24 FFT4082 SJC → LAX Jul 24, 04:05 UTCJul 24, 05:00 UTC55m
2026-07-24 FFT2457 PNS → DEN Jul 24, 01:23 UTCJul 24, 02:07 UTC44m
2026-07-24 FFT2457 PNS → DEN Jul 24, 01:20 UTCJul 24, 02:10 UTC50m
2026-07-23 FFT3215 ATL → LAX Jul 23, 19:45 UTCJul 23, 23:40 UTC3h 55m
2026-07-23 FFT3215 ATL → LAX Jul 23, 19:31 UTCJul 23, 23:39 UTC4h 8m
2026-07-23 FFT1846 PHX → DTW Jul 23, 16:30 UTCJul 23, 17:35 UTC1h 5m
2026-07-23 FFT4771 ATL → CVG Jul 23, 14:15 UTCJul 23, 15:15 UTC1h 0m
2026-07-23 FFT4601 EWR → ATL Jul 23, 10:10 UTCJul 23, 11:55 UTC1h 45m
2026-07-23 FFT4602 FLL → PHL Jul 23, 03:45 UTCJul 23, 05:20 UTC1h 35m
2026-07-23 FFT4602 FLL → PHL Jul 23, 03:27 UTCJul 23, 05:22 UTC1h 55m
2026-07-23 FFT3453 PHL → MIA Jul 23, 00:15 UTCJul 23, 02:00 UTC1h 45m
2026-07-22 FFT3454 ATL → LGA Jul 22, 20:35 UTCJul 22, 22:20 UTC1h 45m
2026-07-22 FFT3511 BOS → ATL Jul 22, 16:30 UTCJul 22, 18:45 UTC2h 15m
2026-07-22 FFT3058 RDU → BOS Jul 22, 13:30 UTCJul 22, 14:55 UTC1h 25m
2026-07-22 FFT1168 MCO → PHL Jul 22, 11:30 UTCJul 22, 12:25 UTC55m
2026-07-21 FFT4076 IAH → ATL Jul 21, 16:15 UTCJul 21, 17:50 UTC1h 35m
2026-07-21 FFT2399 ATL → IAH Jul 21, 12:55 UTCJul 21, 14:30 UTC1h 35m
2026-07-21 FFT3216 LAX → ATL Jul 21, 07:00 UTCJul 21, 11:00 UTC4h 0m
2026-07-21 FFT4082 SJC → LAX Jul 21, 03:30 UTCJul 21, 04:30 UTC1h 0m
2026-07-21 FFT2457 PNS → DEN Jul 21, 01:30 UTCJul 21, 02:15 UTC45m
2026-07-20 FFT3215 - Jul 20, 19:30 UTCJul 20, 23:15 UTC3h 45m
2026-07-20 FFT2498 - Jul 20, 16:45 UTCJul 20, 17:50 UTC1h 5m
2026-07-20 FFT2497 - Jul 20, 14:05 UTCJul 20, 15:10 UTC1h 5m
2026-07-20 FFT1853 TPA → ATL Jul 20, 11:10 UTCJul 20, 12:15 UTC1h 5m
2026-07-20 FFT3371 RDU → TPA Jul 20, 04:00 UTCJul 20, 05:25 UTC1h 25m
2026-07-20 FFT3372 TPA → ORF Jul 20, 01:20 UTCJul 20, 03:00 UTC1h 40m
2026-07-19 FFT2912 ATL → TPA Jul 19, 23:00 UTCJul 20, 00:05 UTC1h 5m
2026-07-19 FFT4435 TPA → ATL Jul 19, 20:35 UTCJul 19, 21:40 UTC1h 5m
2026-07-19 FFT1668 MCO → LGA Jul 19, 15:10 UTCJul 19, 16:50 UTC1h 40m
2026-07-19 FFT1303 PHL → BNA Jul 19, 11:50 UTCJul 19, 13:40 UTC1h 50m
2026-07-19 FFT2746 DEN → TPA Jul 19, 06:10 UTCJul 19, 09:20 UTC3h 10m

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 N332FR page for operator, model, and routing details .

Mode-S A39DCA frequently asked

What is Mode-S code A39DCA?
A39DCA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N332FR.
Where is Mode-S A39DCA registered?
Mode-S code A39DCA 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 A39DCA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A39DCA, octal 50716712, decimal 10,722,762.
What flights does A39DCA operate?
Mode-S A39DCA has broadcast 20 distinct callsigns, including FFT1113, FFT4602, FFT3417, FFT2746, FFT2549.