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sensors Mode-S transponder

A3973F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N330QT · AIRBUS A-330-200 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A3973F
Octal
50713477
Decimal
10,721,087
Country
US
Tail
N330QT
Type
A332
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
355
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A3973F.

Country allocation

The ICAO 24-bit address A3973F 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
TPA4087 - 22 2026-07-13
TNO4276 - 12 2026-07-20
TNO4269 - 12 2026-07-01
TPA4092 - 11 2026-07-12
TPA4059 Tampa Cargo 11 2026-07-21
TPA4045 - 10 2026-07-12
TPA4222 Tampa Cargo 8 2026-07-23
TPA4082 - 8 2026-07-17
TNO4268 - 8 2026-07-01
TPA4210 - 7 2026-06-28
TPA4093 Tampa Cargo 7 2026-07-22
TPA4080 - 7 2026-07-18
TPA4069 - 7 2026-07-10
TPA4047 Tampa Cargo 7 2026-07-20
TNO4263 - 7 2026-07-13
TNO4260 Aerotransporte de Carga Union 7 2026-06-08
TPA4051 - 6 2026-07-18
TPA4050 - 6 2026-07-13
TPA4041 - 6 2026-07-16
TPA4030 - 6 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TPA4089 ASU → VCP Jul 26, 14:35 UTCJul 26, 21:30 UTC6h 55m
2026-07-26 TPA4226 ZAZ → MIA Jul 26, 09:25 UTCJul 26, 12:10 UTC2h 45m
2026-07-26 TPA4079 MIA → BOG Jul 26, 02:20 UTCJul 26, 07:30 UTC5h 11m
2026-07-25 TPA4079 MIA → BOG Jul 25, 22:45 UTCJul 26, 00:55 UTC2h 10m
2026-07-25 TPA4098 SCL → MIA Jul 25, 17:30 UTCJul 25, 19:20 UTC1h 50m
2026-07-25 TPA4098 SCL → MIA Jul 25, 11:15 UTCJul 25, 11:25 UTC10m
2026-07-25 TPA4043 MIA → LIM Jul 25, 01:05 UTCJul 25, 01:55 UTC50m
2026-07-25 TPA4043 MIA → LIM Jul 25, 00:05 UTCJul 25, 00:20 UTC15m
2026-07-24 TPA4043 MIA → LIM Jul 24, 18:45 UTCJul 24, 21:45 UTC3h 0m
2026-07-24 TPA4096 SCL → MIA Jul 24, 11:20 UTCJul 24, 15:50 UTC4h 30m
2026-07-23 TPA4089 ASU → VCP Jul 23, 18:40 UTCJul 24, 01:40 UTC7h 0m
2026-07-23 TPA4222 MDE → MIA Jul 23, 13:30 UTCJul 23, 16:20 UTC2h 50m
2026-07-23 TPA4054 VCP → BOG Jul 23, 03:35 UTCJul 23, 07:50 UTC4h 15m
2026-07-22 TPA4093 MIA → MVD Jul 22, 23:20 UTCJul 23, 01:10 UTC1h 50m
2026-07-22 TPA4093 MIA → MVD Jul 22, 21:30 UTCJul 22, 21:40 UTC10m
2026-07-22 TPA4093 MIA → MVD Jul 22, 13:30 UTCJul 22, 20:55 UTC7h 25m
2026-07-22 TPA4222 MDE → MIA Jul 22, 03:40 UTCJul 22, 04:30 UTC50m
2026-07-22 TPA4058 BOG → MDE Jul 22, 01:20 UTCJul 22, 01:35 UTC15m
2026-07-21 TPA4058 BOG → MDE Jul 21, 17:50 UTCJul 21, 23:40 UTC5h 50m
2026-07-21 TPA4059 VCP → VIX Jul 21, 14:40 UTCJul 21, 15:55 UTC1h 15m
2026-07-21 TPA4059 VCP → VIX Jul 21, 07:45 UTCJul 21, 13:30 UTC5h 45m
2026-07-21 TPA4059 VCP → VIX Jul 21, 05:55 UTCJul 21, 06:10 UTC15m
2026-07-20 TNO4276 - Jul 20, 20:15 UTCJul 20, 22:55 UTC2h 40m
2026-07-20 TNO4276 - Jul 20, 14:05 UTCJul 20, 18:00 UTC3h 55m
2026-07-20 TPA4054 VCP → BOG Jul 20, 04:50 UTCJul 20, 10:05 UTC5h 15m
2026-07-20 TPA4047 AGT → VCP Jul 20, 01:55 UTCJul 20, 02:45 UTC50m
2026-07-19 TPA4047 AGT → VCP Jul 19, 18:20 UTCJul 19, 23:40 UTC5h 20m
2026-07-19 TPA4047 AGT → VCP Jul 19, 16:30 UTCJul 19, 16:50 UTC20m
2026-07-19 TPA4224 MIA → MST Jul 19, 11:20 UTCJul 19, 14:05 UTC2h 45m
2026-07-19 TPA4225 MIA → MDE Jul 19, 09:05 UTCJul 19, 09:35 UTC30m
2026-07-18 TPA4080 - Jul 18, 23:55 UTCJul 19, 06:00 UTC6h 5m
2026-07-18 TPA4051 - Jul 18, 18:50 UTCJul 18, 21:30 UTC2h 40m
2026-07-18 TPA4051 - Jul 18, 11:10 UTCJul 18, 16:40 UTC5h 30m
2026-07-18 TPA4051 - Jul 18, 09:15 UTCJul 18, 09:30 UTC15m
2026-07-17 TPA4094 SCL → MIA Jul 17, 18:19 UTCJul 18, 07:25 UTC13h 6m
2026-07-17 TPA4093 MIA → MVD Jul 17, 08:35 UTCJul 17, 16:49 UTC8h 15m
2026-07-17 TPA4082 - Jul 17, 00:20 UTCJul 17, 05:10 UTC4h 50m
2026-07-16 TPA4041 - Jul 16, 21:10 UTCJul 16, 21:25 UTC15m
2026-07-16 TPA4041 - Jul 16, 19:14 UTCJul 16, 19:30 UTC15m
2026-07-16 TPA4041 - Jul 16, 14:20 UTCJul 16, 17:20 UTC3h 0m
2026-07-16 TPA4222 - Jul 16, 10:40 UTCJul 16, 11:10 UTC30m
2026-07-15 TPA4019 - Jul 15, 23:25 UTCJul 15, 23:35 UTC10m
2026-07-15 TPA4019 - Jul 15, 20:50 UTCJul 15, 21:15 UTC25m
2026-07-15 TPA4218 - Jul 15, 18:25 UTCJul 15, 18:55 UTC30m
2026-07-15 TPA4057 - Jul 15, 02:35 UTCJul 15, 13:15 UTC10h 40m
2026-07-15 TPA4222 - Jul 15, 00:05 UTCJul 15, 00:40 UTC35m
2026-07-14 TPA4222 - Jul 14, 19:25 UTCJul 14, 19:40 UTC15m
2026-07-14 TPA4011 - Jul 14, 14:45 UTCJul 14, 17:50 UTC3h 5m
2026-07-14 TPA4200 - Jul 14, 11:25 UTCJul 14, 11:55 UTC30m
2026-07-13 TPA4050 - Jul 13, 23:00 UTCJul 14, 04:10 UTC5h 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 N330QT page for operator, model, and routing details .

Mode-S A3973F frequently asked

What is Mode-S code A3973F?
A3973F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N330QT.
Where is Mode-S A3973F registered?
Mode-S code A3973F 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 A3973F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3973F, octal 50713477, decimal 10,721,087.
What flights does A3973F operate?
Mode-S A3973F has broadcast 20 distinct callsigns, including TPA4087, TNO4276, TNO4269, TPA4092, TPA4059.