Apparatus

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sensors Mode-S transponder

A9A419

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N720FR · AIRBUS A-321 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A9A419
Octal
52322031
Decimal
11,117,593
Country
US
Tail
N720FR
Type
A321
No current signal · last broadcast 5h ago
Flights observed
434
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A9A419.

Country allocation

The ICAO 24-bit address A9A419 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
FFT3423 Frontier Airlines 6 2026-05-10
FFT1040 Frontier Airlines 6 2026-06-03
FFT4186 - 5 2026-06-26
FFT3540 - 5 2026-06-25
FFT3424 Frontier Airlines 5 2026-05-09
FFT3199 - 5 2026-06-25
FFT3156 - 5 2026-06-24
FFT2341 Frontier Airlines 5 2026-04-25
FFT1741 Frontier Airlines 5 2026-06-03
FFT9320 Frontier Airlines 4 2026-04-16
FFT4968 - 4 2026-06-29
FFT4967 - 4 2026-06-25
FFT4545 - 4 2026-06-27
FFT4252 Frontier Airlines 4 2026-06-25
FFT4251 - 4 2026-06-25
FFT4170 Frontier Airlines 4 2026-05-24
FFT3916 Frontier Airlines 4 2026-06-02
FFT3450 - 4 2026-07-13
FFT3358 - 4 2026-06-26
FFT3339 - 4 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT1647 DFW → LAS Jul 14, 03:00 UTCJul 14, 05:10 UTC2h 10m
2026-07-13 FFT1052 LAS → DFW Jul 13, 21:40 UTCJul 14, 00:05 UTC2h 25m
2026-07-13 FFT4277 IAD → LAS Jul 13, 15:45 UTCJul 13, 19:45 UTC4h 0m
2026-07-13 FFT4278 - Jul 13, 10:05 UTCJul 13, 14:20 UTC4h 15m
2026-07-13 FFT3449 - Jul 13, 07:20 UTCJul 13, 08:20 UTC1h 0m
2026-07-13 FFT3449 ELP → LAS Jul 13, 07:03 UTCJul 13, 08:20 UTC1h 17m
2026-07-13 FFT3450 - Jul 13, 04:25 UTCJul 13, 05:35 UTC1h 10m
2026-07-13 FFT3450 LAS → ELP Jul 13, 04:23 UTCJul 13, 05:49 UTC1h 26m
2026-07-12 FFT3231 CLE → LAS Jul 12, 21:55 UTCJul 13, 01:45 UTC3h 50m
2026-07-12 FFT4966 LAS → CLE Jul 12, 15:50 UTCJul 12, 19:35 UTC3h 45m
2026-07-11 FFT1590 - Jul 11, 22:55 UTCJul 12, 00:05 UTC1h 10m
2026-07-11 FFT4103 LAS → SJC Jul 11, 20:50 UTCJul 11, 21:50 UTC1h 0m
2026-07-11 FFT3231 - Jul 11, 15:45 UTCJul 11, 19:35 UTC3h 50m
2026-07-11 FFT4966 LAS → CLE Jul 11, 07:55 UTCJul 11, 11:30 UTC3h 35m
2026-07-11 FFT2408 SEA → LAS Jul 11, 04:05 UTCJul 11, 06:10 UTC2h 5m
2026-07-10 FFT2275 - Jul 10, 23:55 UTCJul 11, 02:05 UTC2h 10m
2026-07-10 FFT1357 - Jul 10, 22:20 UTCJul 10, 22:55 UTC35m
2026-07-10 FFT1357 LAS → ONT Jul 10, 21:58 UTCJul 10, 22:55 UTC57m
2026-07-10 FFT3645 - Jul 10, 18:05 UTCJul 10, 20:25 UTC2h 20m
2026-07-10 FFT4684 LAS → AUS Jul 10, 14:20 UTCJul 10, 16:45 UTC2h 25m
2026-07-10 FFT3449 - Jul 10, 02:35 UTCJul 10, 03:40 UTC1h 5m
2026-07-09 FFT3450 LAS → ELP Jul 9, 23:35 UTCJul 10, 00:49 UTC1h 14m
2026-07-09 FFT3450 - Jul 9, 23:30 UTCJul 10, 00:35 UTC1h 5m
2026-07-09 FFT4131 - Jul 9, 18:30 UTCJul 9, 21:05 UTC2h 35m
2026-07-09 FFT4131 IAH → LAS Jul 9, 18:30 UTCJul 9, 21:01 UTC2h 31m
2026-07-09 FFT1490 - Jul 9, 14:10 UTCJul 9, 16:55 UTC2h 45m
2026-07-09 FFT4113 PHX → LAS Jul 9, 05:58 UTCJul 9, 06:24 UTC26m
2026-07-09 FFT4113 - Jul 9, 05:40 UTCJul 9, 06:25 UTC45m
2026-07-09 FFT4671 - Jul 9, 00:10 UTCJul 9, 03:45 UTC3h 35m
2026-07-08 FFT1958 - Jul 8, 20:05 UTCJul 8, 22:35 UTC2h 30m
2026-07-08 FFT4184 - Jul 8, 16:20 UTCJul 8, 18:45 UTC2h 25m
2026-07-08 FFT3971 DFW → PHX Jul 8, 03:50 UTCJul 8, 05:45 UTC1h 55m
2026-07-08 FFT3971 DFW → PHX Jul 8, 03:38 UTCJul 8, 05:41 UTC2h 3m
2026-07-08 FFT3972 PHX → DFW Jul 8, 00:00 UTCJul 8, 02:05 UTC2h 5m
2026-07-07 FFT1062 MCO → CVG Jul 7, 21:32 UTCJul 7, 22:04 UTC32m
2026-07-07 FFT1062 MCO → CVG Jul 7, 21:10 UTCJul 7, 22:10 UTC1h 0m
2026-07-07 FFT3303 PHX → LAX Jul 7, 18:50 UTCJul 7, 19:40 UTC50m
2026-07-07 FFT1085 MCO → PHX Jul 7, 13:35 UTCJul 7, 17:20 UTC3h 45m
2026-07-07 FFT3505 - Jul 7, 06:15 UTCJul 7, 06:55 UTC40m
2026-07-07 FFT3505 - Jul 7, 04:25 UTCJul 7, 04:40 UTC15m
2026-07-07 FFT1746 - Jul 7, 02:40 UTCJul 7, 03:00 UTC20m
2026-07-07 FFT1746 - Jul 7, 00:30 UTCJul 7, 01:10 UTC40m
2026-07-07 FFT1746 MCO → SJU Jul 7, 00:28 UTCJul 7, 02:56 UTC2h 28m
2026-07-05 FFT4173 - Jul 5, 16:55 UTCJul 5, 18:50 UTC1h 55m
2026-07-05 FFT1542 MCO → PHL Jul 5, 13:15 UTCJul 5, 15:10 UTC1h 55m
2026-07-05 FFT1242 ATL → MCO Jul 5, 09:50 UTCJul 5, 10:50 UTC1h 0m
2026-07-05 FFT4409 IAD → ATL Jul 5, 02:05 UTCJul 5, 03:20 UTC1h 15m
2026-07-05 FFT4409 IAD → ATL Jul 5, 01:10 UTCJul 5, 03:16 UTC2h 6m
2026-07-04 FFT2960 - Jul 4, 22:10 UTCJul 5, 00:30 UTC2h 20m
2026-07-04 FFT4411 BWI → FLL Jul 4, 17:45 UTCJul 4, 19:55 UTC2h 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 N720FR page for operator, model, and routing details .

Mode-S A9A419 frequently asked

What is Mode-S code A9A419?
A9A419 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N720FR.
Where is Mode-S A9A419 registered?
Mode-S code A9A419 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 A9A419 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 A9A419, octal 52322031, decimal 11,117,593.
What flights does A9A419 operate?
Mode-S A9A419 has broadcast 20 distinct callsigns, including FFT3423, FFT1040, FFT4186, FFT3540, FFT3424.