Apparatus

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sensors Mode-S transponder

A958D2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N701FR · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A958D2
Octal
52254322
Decimal
11,098,322
Country
US
Tail
N701FR
Type
A321
Broadcasting now · callsign FFT3174 · 3,825 ft
Flights observed
478
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:05 UTC

Current position

A958D2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A958D2 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
FFT4251 - 7 2026-07-14
FFT2472 Frontier Airlines 7 2026-06-07
FFT4689 Frontier Airlines 6 2026-05-28
FFT228 Frontier Airlines 6 2026-06-08
FFT4895 Frontier Airlines 5 2026-06-29
FFT4345 - 5 2026-07-12
FFT4158 Frontier Airlines 5 2026-05-30
FFT4104 Frontier Airlines 5 2026-05-14
FFT3568 - 5 2026-06-29
FFT3424 Frontier Airlines 5 2026-06-07
FFT3156 - 5 2026-07-12
FFT3131 Frontier Airlines 5 2026-05-29
FFT3026 Frontier Airlines 5 2026-06-29
FFT2471 Frontier Airlines 5 2026-06-07
FFT2356 - 5 2026-07-15
FFT2225 - 5 2026-07-15
FFT1755 Frontier Airlines 5 2026-06-02
FFT4690 Frontier Airlines 4 2026-05-29
FFT4252 Frontier Airlines 4 2026-06-20
FFT4248 Frontier Airlines 4 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFT1442 ORD → ATL Jul 26, 19:10 UTCJul 26, 20:30 UTC1h 20m
2026-07-26 FFT2206 - Jul 26, 13:45 UTCJul 26, 16:35 UTC2h 50m
2026-07-26 FFT3017 SJU → FLL Jul 26, 12:00 UTCJul 26, 12:30 UTC30m
2026-07-26 FFT3017 SJU → FLL Jul 26, 10:20 UTCJul 26, 10:35 UTC15m
2026-07-26 FFT2216 TPA → SJU Jul 26, 04:15 UTCJul 26, 04:30 UTC15m
2026-07-26 FFT2216 TPA → SJU Jul 26, 01:50 UTCJul 26, 02:35 UTC45m
2026-07-25 FFT2215 SJU → TPA Jul 25, 23:20 UTCJul 26, 00:05 UTC45m
2026-07-25 FFT2215 SJU → TPA Jul 25, 21:35 UTCJul 25, 21:45 UTC10m
2026-07-25 FFT3018 LAS → SLC Jul 25, 19:30 UTCJul 25, 19:45 UTC15m
2026-07-25 FFT3018 LAS → SLC Jul 25, 17:30 UTCJul 25, 18:00 UTC30m
2026-07-25 FFT2205 - Jul 25, 13:15 UTCJul 25, 15:40 UTC2h 25m
2026-07-25 FFT2446 LAX → ORD Jul 25, 07:20 UTCJul 25, 11:05 UTC3h 45m
2026-07-25 FFT3316 SMF → LAX Jul 25, 03:40 UTCJul 25, 04:45 UTC1h 5m
2026-07-25 FFT2069 LAS → SMF Jul 25, 00:25 UTCJul 25, 01:30 UTC1h 5m
2026-07-24 FFT1590 SJC → LAS Jul 24, 21:40 UTCJul 24, 22:50 UTC1h 10m
2026-07-24 FFT4103 LAS → SJC Jul 24, 19:20 UTCJul 24, 20:25 UTC1h 5m
2026-07-24 FFT3231 CLE → LAS Jul 24, 13:15 UTCJul 24, 17:05 UTC3h 50m
2026-07-24 FFT4966 LAS → CLE Jul 24, 07:55 UTCJul 24, 11:25 UTC3h 30m
2026-07-24 FFT4113 PHX → LAS Jul 24, 05:40 UTCJul 24, 06:20 UTC40m
2026-07-24 FFT4671 DTW → PHX Jul 24, 00:25 UTCJul 24, 04:10 UTC3h 45m
2026-07-23 FFT1958 IAH → DTW Jul 23, 20:30 UTCJul 23, 22:50 UTC2h 20m
2026-07-23 FFT4184 PHX → IAH Jul 23, 16:30 UTCJul 23, 18:40 UTC2h 10m
2026-07-23 FFT9401 LAS → PHX Jul 23, 14:40 UTCJul 23, 15:30 UTC50m
2026-07-23 FFT9401 LAS → PHX Jul 23, 14:13 UTCJul 23, 15:27 UTC1h 14m
2026-07-23 FFT2070 SFO → LAS Jul 23, 00:15 UTCJul 23, 01:15 UTC1h 0m
2026-07-23 FFT2070 SFO → LAS Jul 23, 00:20 UTCJul 23, 01:14 UTC54m
2026-07-22 FFT2069 LAS → SMF Jul 22, 21:55 UTCJul 22, 23:00 UTC1h 5m
2026-07-22 FFT1601 PHL → MCO Jul 22, 15:40 UTCJul 22, 20:25 UTC4h 45m
2026-07-22 FFT9801 - Jul 22, 12:00 UTCJul 22, 12:35 UTC35m
2026-07-21 FFT1682 - Jul 21, 20:55 UTCJul 21, 22:30 UTC1h 35m
2026-07-21 FFT1682 MYR → ISP Jul 21, 20:33 UTCJul 21, 22:29 UTC1h 56m
2026-07-21 FFT3271 - Jul 21, 17:15 UTCJul 21, 18:50 UTC1h 35m
2026-07-17 FFT2538 TPA → PHL Jul 17, 19:45 UTCJul 17, 21:55 UTC2h 10m
2026-07-17 FFT2729 - Jul 17, 13:50 UTCJul 17, 15:20 UTC1h 30m
2026-07-17 FFT2059 - Jul 17, 11:35 UTCJul 17, 12:25 UTC50m
2026-07-17 FFT3340 - Jul 17, 06:20 UTCJul 17, 09:25 UTC3h 5m
2026-07-17 FFT2443 - Jul 17, 00:35 UTCJul 17, 03:05 UTC2h 30m
2026-07-17 FFT2443 PNS → DEN Jul 17, 00:39 UTCJul 17, 02:58 UTC2h 19m
2026-07-16 FFT3930 - Jul 16, 20:39 UTCJul 16, 23:10 UTC2h 30m
2026-07-16 FFT3930 DEN → PNS Jul 16, 20:42 UTCJul 16, 23:11 UTC2h 29m
2026-07-16 FFT4639 CLE → DEN Jul 16, 16:15 UTCJul 16, 18:44 UTC2h 30m
2026-07-16 FFT4639 CLE → DEN Jul 16, 16:13 UTCJul 16, 18:43 UTC2h 30m
2026-07-16 FFT1918 DEN → CLE Jul 16, 12:20 UTCJul 16, 14:55 UTC2h 35m
2026-07-16 FFT3707 - Jul 16, 00:45 UTCJul 16, 02:35 UTC1h 50m
2026-07-15 FFT2356 DEN → SAT Jul 15, 21:50 UTCJul 15, 23:35 UTC1h 45m
2026-07-15 FFT2225 - Jul 15, 16:55 UTCJul 15, 19:45 UTC2h 50m
2026-07-15 FFT2440 DEN → RDU Jul 15, 12:25 UTCJul 15, 15:35 UTC3h 10m
2026-07-15 FFT1483 - Jul 15, 03:20 UTCJul 15, 05:15 UTC1h 55m
2026-07-14 FFT3174 - Jul 14, 23:10 UTCJul 15, 01:30 UTC2h 20m
2026-07-14 FFT3199 MSP → DEN Jul 14, 18:35 UTCJul 14, 20:05 UTC1h 30m

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 N701FR page for operator, model, and routing details .

Mode-S A958D2 frequently asked

What is Mode-S code A958D2?
A958D2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N701FR.
Where is Mode-S A958D2 registered?
Mode-S code A958D2 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 A958D2 broadcasting right now?
Yes. Mode-S A958D2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A958D2, octal 52254322, decimal 11,098,322.
What flights does A958D2 operate?
Mode-S A958D2 has broadcast 20 distinct callsigns, including FFT4251, FFT2472, FFT4689, FFT228, FFT4895.