Apparatus

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sensors Mode-S transponder

A98051

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N711FR · AIRBUS A-321 · operated by BANK OF UTAH TRUSTEE

Hex
A98051
Octal
52300121
Decimal
11,108,433
Country
US
Tail
N711FR
Type
A321
Broadcasting now · callsign FFT3913 · 30,000 ft
Flights observed
407
Distinct callsigns
20
Country
US
Last broadcast
54m ago

Current position

A98051 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A98051 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
FFT206 Frontier Airlines 18 2026-06-02
FFT207 Frontier Airlines 17 2026-06-02
FFT3132 Frontier Airlines 9 2026-06-22
FFT1544 Frontier Airlines 8 2026-06-01
FFT3990 Frontier Airlines 7 2026-06-22
FFT1545 Frontier Airlines 6 2026-06-02
FFT1287 Frontier Airlines 6 2026-05-31
FFT3174 - 5 2026-06-25
FFT3131 Frontier Airlines 5 2026-04-30
FFT1722 Frontier Airlines 5 2026-06-01
FFT1149 Frontier Airlines 5 2026-04-29
FFT4689 - 4 2026-06-21
FFT4345 Frontier Airlines 4 2026-05-01
FFT4161 Frontier Airlines 4 2026-06-21
FFT3286 - 4 2026-06-26
FFT3175 Frontier Airlines 4 2026-06-23
FFT3156 Frontier Airlines 4 2026-05-01
FFT2907 Frontier Airlines 4 2026-04-30
FFT229 - 4 2026-06-30
FFT2274 Frontier Airlines 4 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FFT3913 - Jul 14, 23:25 UTCJul 15, 02:15 UTC2h 50m
2026-07-14 FFT1728 LAS → MCO Jul 14, 16:20 UTCJul 14, 20:35 UTC4h 15m
2026-07-13 FFT3645 AUS → LAS Jul 13, 19:35 UTCJul 13, 21:55 UTC2h 20m
2026-07-13 FFT4684 LAS → AUS Jul 13, 15:25 UTCJul 13, 17:45 UTC2h 20m
2026-07-13 FFT1647 DFW → LAS Jul 13, 04:25 UTCJul 13, 06:35 UTC2h 10m
2026-07-12 FFT1052 LAS → DFW Jul 12, 23:25 UTCJul 13, 02:40 UTC3h 15m
2026-07-12 FFT4244 CSN → LAS Jul 12, 20:55 UTCJul 12, 21:55 UTC1h 0m
2026-07-12 FFT4243 - Jul 12, 18:15 UTCJul 12, 19:05 UTC50m
2026-07-12 FFT2145 PHL → LAS Jul 12, 12:45 UTCJul 12, 15:50 UTC3h 5m
2026-07-12 FFT2145 PHL → LAS Jul 12, 12:30 UTCJul 12, 15:50 UTC3h 20m
2026-07-12 FFT2146 LAS → ORD Jul 12, 07:05 UTCJul 12, 10:10 UTC3h 5m
2026-07-12 FFT3417 - Jul 12, 02:35 UTCJul 12, 04:45 UTC2h 10m
2026-07-11 FFT3418 - Jul 11, 23:10 UTCJul 12, 01:25 UTC2h 15m
2026-07-11 FFT4131 - Jul 11, 19:00 UTCJul 11, 21:40 UTC2h 40m
2026-07-11 FFT4131 IAH → LAS Jul 11, 18:53 UTCJul 11, 21:40 UTC2h 47m
2026-07-11 FFT1490 - Jul 11, 14:15 UTCJul 11, 16:45 UTC2h 30m
2026-07-10 FFT4758 - Jul 10, 23:00 UTCJul 10, 23:40 UTC40m
2026-07-10 FFT4758 ONT → LAS Jul 10, 22:53 UTCJul 10, 23:40 UTC47m
2026-07-10 FFT2276 SEA → ONT Jul 10, 19:15 UTCJul 10, 21:25 UTC2h 11m
2026-07-10 FFT2407 LAS → SEA Jul 10, 14:55 UTCJul 10, 17:15 UTC2h 20m
2026-07-10 FFT4156 - Jul 10, 06:15 UTCJul 10, 07:15 UTC1h 0m
2026-07-10 FFT3801 LAS → SFO Jul 10, 03:10 UTCJul 10, 04:25 UTC1h 15m
2026-07-09 FFT4758 - Jul 9, 23:20 UTCJul 10, 00:05 UTC45m
2026-07-09 FFT2276 SEA → ONT Jul 9, 19:00 UTCJul 9, 21:05 UTC2h 5m
2026-07-09 FFT2407 LAS → SEA Jul 9, 15:00 UTCJul 9, 17:20 UTC2h 20m
2026-07-09 FFT2015 DEN → LAS Jul 9, 12:20 UTCJul 9, 13:50 UTC1h 30m
2026-07-09 FFT3599 ATL → DEN Jul 9, 00:50 UTCJul 9, 04:00 UTC3h 10m
2026-07-08 FFT4702 - Jul 8, 19:50 UTCJul 8, 21:35 UTC1h 45m
2026-07-08 FFT4211 ATL → AUS Jul 8, 16:20 UTCJul 8, 18:10 UTC1h 50m
2026-07-08 FFT4427 - Jul 8, 12:50 UTCJul 8, 14:10 UTC1h 20m
2026-07-08 FFT2510 ATL → BWI Jul 8, 09:50 UTCJul 8, 11:15 UTC1h 25m
2026-07-08 FFT3691 IAD → ATL Jul 8, 01:05 UTCJul 8, 02:25 UTC1h 20m
2026-07-07 FFT2960 - Jul 7, 21:35 UTCJul 7, 23:35 UTC2h 0m
2026-07-07 FFT4411 BWI → FLL Jul 7, 17:35 UTCJul 7, 19:40 UTC2h 5m
2026-07-07 FFT4412 - Jul 7, 14:10 UTCJul 7, 16:10 UTC2h 0m
2026-07-07 FFT2172 ATL → FLL Jul 7, 10:50 UTCJul 7, 12:15 UTC1h 25m
2026-07-07 FFT1450 DEN → ATL Jul 7, 06:20 UTCJul 7, 08:45 UTC2h 25m
2026-07-07 FFT2422 - Jul 7, 02:10 UTCJul 7, 04:00 UTC1h 50m
2026-07-07 FFT2422 SAN → DEN Jul 7, 01:58 UTCJul 7, 03:58 UTC2h 0m
2026-07-06 FFT2421 - Jul 6, 22:30 UTCJul 7, 00:25 UTC1h 55m
2026-07-06 FFT3199 MSP → DEN Jul 6, 19:25 UTCJul 6, 20:55 UTC1h 30m
2026-07-06 FFT1150 DEN → MSP Jul 6, 16:05 UTCJul 6, 17:35 UTC1h 30m
2026-07-06 FFT1279 - Jul 6, 11:10 UTCJul 6, 14:45 UTC3h 35m
2026-07-06 FFT1280 - Jul 6, 05:45 UTCJul 6, 09:10 UTC3h 25m
2026-07-06 FFT2443 - Jul 6, 01:25 UTCJul 6, 03:55 UTC2h 30m
2026-07-05 FFT3930 DEN → PNS Jul 5, 21:30 UTCJul 5, 23:50 UTC2h 20m
2026-07-05 FFT4639 - Jul 5, 17:05 UTCJul 5, 19:50 UTC2h 45m
2026-07-05 FFT1918 DEN → CLE Jul 5, 12:10 UTCJul 5, 14:55 UTC2h 45m
2026-07-05 FFT1918 DEN → CLE Jul 5, 12:13 UTCJul 5, 14:41 UTC2h 28m
2026-07-04 FFT2350 LAS → DEN Jul 4, 13:35 UTCJul 4, 15:00 UTC1h 25m

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 N711FR page for operator, model, and routing details .

Mode-S A98051 frequently asked

What is Mode-S code A98051?
A98051 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N711FR.
Where is Mode-S A98051 registered?
Mode-S code A98051 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 A98051 broadcasting right now?
Yes. Mode-S A98051 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A98051, octal 52300121, decimal 11,108,433.
What flights does A98051 operate?
Mode-S A98051 has broadcast 20 distinct callsigns, including FFT206, FFT207, FFT3132, FFT1544, FFT3990.