Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A7D6A8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N604FR · AIRBUS A-321neo · operated by BANK OF UTAH TRUSTEE

Hex
A7D6A8
Octal
51753250
Decimal
10,999,464
Country
US
Tail
N604FR
Type
A21N
No current signal · last broadcast 4h ago
Flights observed
420
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A7D6A8.

Country allocation

The ICAO 24-bit address A7D6A8 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
FFT70 - 5 2026-07-13
FFT2523 Frontier Airlines 5 2026-05-26
FFT4671 Frontier Airlines 4 2026-05-27
FFT4048 Frontier Airlines 4 2026-05-17
FFT3284 Frontier Airlines 4 2026-05-11
FFT2698 Frontier Airlines 4 2026-05-17
FFT2697 Frontier Airlines 4 2026-05-18
FFT2608 Frontier Airlines 4 2026-05-27
FFT2512 Frontier Airlines 4 2026-06-10
FFT1958 Frontier Airlines 4 2026-05-26
FFT1949 Frontier Airlines 4 2026-04-16
FFT1704 Frontier Airlines 4 2026-05-14
FFT1446 - 4 2026-07-01
FFT1191 Frontier Airlines 4 2026-05-25
FFT1019 Frontier Airlines 4 2026-05-17
FFT4948 Frontier Airlines 3 2026-06-07
FFT4844 Frontier Airlines 3 2026-06-13
FFT4170 Frontier Airlines 3 2026-06-07
FFT4146 Frontier Airlines 3 2026-04-17
FFT4131 - 3 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT3227 - Jul 14, 00:20 UTCJul 14, 02:15 UTC1h 55m
2026-07-13 FFT317 - Jul 13, 19:10 UTCJul 13, 20:55 UTC1h 45m
2026-07-13 FFT70 DEN → CUN Jul 13, 13:55 UTCJul 13, 17:35 UTC3h 40m
2026-07-13 FFT3339 - Jul 13, 01:05 UTCJul 13, 04:30 UTC3h 25m
2026-07-13 FFT3339 - Jul 13, 00:35 UTCJul 13, 00:40 UTC5m
2026-07-12 FFT2552 - Jul 12, 21:50 UTCJul 12, 23:20 UTC1h 30m
2026-07-12 FFT4731 - Jul 12, 17:25 UTCJul 12, 19:50 UTC2h 25m
2026-07-12 FFT4732 ATL → JFK Jul 12, 13:30 UTCJul 12, 15:15 UTC1h 45m
2026-07-12 FFT4797 - Jul 12, 10:35 UTCJul 12, 11:30 UTC55m
2026-07-12 FFT1670 ATL → RDU Jul 12, 05:26 UTCJul 12, 06:21 UTC55m
2026-07-12 FFT1670 ATL → RDU Jul 12, 05:25 UTCJul 12, 06:15 UTC50m
2026-07-12 FFT4409 IAD → ATL Jul 12, 01:00 UTCJul 12, 02:08 UTC1h 8m
2026-07-12 FFT4409 IAD → ATL Jul 12, 00:50 UTCJul 12, 02:10 UTC1h 20m
2026-07-11 FFT2960 - Jul 11, 21:30 UTCJul 11, 23:30 UTC2h 0m
2026-07-11 FFT4411 - Jul 11, 18:00 UTCJul 11, 20:00 UTC2h 0m
2026-07-11 FFT4412 - Jul 11, 13:45 UTCJul 11, 15:55 UTC2h 10m
2026-07-11 FFT2172 - Jul 11, 10:55 UTCJul 11, 12:15 UTC1h 20m
2026-07-11 FFT2172 ATL → FLL Jul 11, 10:51 UTCJul 11, 12:15 UTC1h 24m
2026-07-11 FFT1450 - Jul 11, 06:50 UTCJul 11, 09:20 UTC2h 30m
2026-07-10 FFT3227 - Jul 10, 23:45 UTCJul 11, 02:05 UTC2h 20m
2026-07-10 FFT317 - Jul 10, 19:15 UTCJul 10, 21:10 UTC1h 55m
2026-07-10 FFT70 DEN → CUN Jul 10, 13:55 UTCJul 10, 16:00 UTC2h 5m
2026-07-10 FFT70 DEN → CUN Jul 10, 13:53 UTCJul 10, 17:29 UTC3h 36m
2026-07-09 FFT71 CUN → DEN Jul 9, 20:40 UTCJul 10, 00:20 UTC3h 40m
2026-07-09 FFT316 - Jul 9, 16:55 UTCJul 9, 18:45 UTC1h 50m
2026-07-09 FFT316 IAH → CUN Jul 9, 17:02 UTCJul 9, 18:42 UTC1h 40m
2026-07-09 FFT3206 - Jul 9, 13:10 UTCJul 9, 15:05 UTC1h 55m
2026-07-08 FFT9404 - Jul 8, 19:35 UTCJul 8, 22:45 UTC3h 10m
2026-07-04 FFT317 - Jul 4, 19:10 UTCJul 4, 21:00 UTC1h 50m
2026-07-04 FFT70 DEN → CUN Jul 4, 16:55 UTCJul 4, 17:25 UTC30m
2026-07-04 FFT70 DEN → CUN Jul 4, 14:05 UTCJul 4, 16:15 UTC2h 10m
2026-07-04 FFT1994 LAS → DEN Jul 4, 02:40 UTCJul 4, 04:05 UTC1h 25m
2026-07-04 FFT1994 LAS → DEN Jul 4, 02:13 UTCJul 4, 04:02 UTC1h 49m
2026-07-03 FFT3626 - Jul 3, 22:40 UTCJul 3, 23:40 UTC1h 0m
2026-07-03 FFT3625 - Jul 3, 20:10 UTCJul 3, 21:00 UTC50m
2026-07-03 FFT3625 LAS → RNO Jul 3, 20:10 UTCJul 3, 21:04 UTC54m
2026-07-03 FFT1875 MCO → LAS Jul 3, 13:25 UTCJul 3, 17:45 UTC4h 20m
2026-07-03 FFT2280 - Jul 3, 02:10 UTCJul 3, 04:15 UTC2h 5m
2026-07-02 FFT1055 MCO → CLE Jul 2, 22:15 UTCJul 3, 00:05 UTC1h 50m
2026-07-02 FFT1111 RDU → MCO Jul 2, 18:50 UTCJul 2, 20:20 UTC1h 30m
2026-07-02 FFT1742 - Jul 2, 15:00 UTCJul 2, 17:20 UTC2h 20m
2026-07-02 FFT1417 - Jul 2, 11:40 UTCJul 2, 13:35 UTC1h 55m
2026-07-02 FFT4978 - Jul 2, 00:30 UTCJul 2, 02:25 UTC1h 55m
2026-07-01 FFT3469 - Jul 1, 20:50 UTCJul 1, 23:05 UTC2h 15m
2026-07-01 FFT1445 CLT → MCO Jul 1, 16:40 UTCJul 1, 17:45 UTC1h 5m
2026-07-01 FFT1446 - Jul 1, 13:50 UTCJul 1, 15:05 UTC1h 15m
2026-07-01 FFT1111 - Jul 1, 04:35 UTCJul 1, 05:50 UTC1h 15m
2026-06-30 FFT1742 - Jun 30, 15:20 UTCJun 30, 17:40 UTC2h 20m
2026-06-30 FFT1417 - Jun 30, 11:25 UTCJun 30, 13:20 UTC1h 55m
2026-06-30 FFT1876 LAS → MCO Jun 30, 05:10 UTCJun 30, 09:30 UTC4h 20m

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 N604FR page for operator, model, and routing details .

Mode-S A7D6A8 frequently asked

What is Mode-S code A7D6A8?
A7D6A8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N604FR.
Where is Mode-S A7D6A8 registered?
Mode-S code A7D6A8 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 A7D6A8 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7D6A8, octal 51753250, decimal 10,999,464.
What flights does A7D6A8 operate?
Mode-S A7D6A8 has broadcast 20 distinct callsigns, including FFT70, FFT2523, FFT4671, FFT4048, FFT3284.