Apparatus

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sensors Mode-S transponder

A3A61B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N334QT · AIRBUS A-330-200 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A3A61B
Octal
50723033
Decimal
10,724,891
Country
US
Tail
N334QT
Type
A332
Broadcasting now · callsign TPA4218 · 4,000 ft
Flights observed
263
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Current position

A3A61B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3A61B 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
TPA4051 - 12 2026-06-27
TPA4092 - 11 2026-06-25
TNO4260 Aerotransporte de Carga Union 11 2026-07-23
TPA4091 Tampa Cargo 10 2026-05-18
TPA4045 - 9 2026-06-24
TPA4089 Tampa Cargo 8 2026-07-20
TNO7081 Aerotransporte de Carga Union 8 2026-05-30
TNO4273 - 8 2026-07-21
TPA4059 - 7 2026-06-19
TPA4036 Tampa Cargo 7 2026-07-25
TNO4274 - 7 2026-07-21
TPA4210 - 6 2026-06-27
TPA4087 - 6 2026-06-28
TPA4200 - 5 2026-06-30
TPA4069 Tampa Cargo 5 2026-07-22
TPA4054 Tampa Cargo 5 2026-07-26
TNO4276 - 5 2026-06-22
TPA4047 Tampa Cargo 4 2026-07-26
TPA4003 Tampa Cargo 4 2026-05-30
TPA4250 - 3 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TPA4054 VCP → BOG Jul 26, 20:45 UTCJul 26, 22:45 UTC2h 0m
2026-07-26 TPA4047 AGT → VCP Jul 26, 18:00 UTCJul 26, 18:20 UTC20m
2026-07-26 TPA4047 AGT → VCP Jul 26, 08:05 UTCJul 26, 15:15 UTC7h 10m
2026-07-25 TPA4036 UIO → MIA Jul 25, 16:15 UTCJul 26, 04:25 UTC12h 10m
2026-07-25 TPA4222 MDE → MIA Jul 25, 09:15 UTCJul 25, 12:00 UTC2h 45m
2026-07-24 TPA4223 MIA → MDE Jul 24, 22:35 UTCJul 24, 22:50 UTC15m
2026-07-24 TPA4223 MIA → MDE Jul 24, 17:35 UTCJul 24, 20:40 UTC3h 5m
2026-07-24 TNO7087 LAX → NLU Jul 24, 09:30 UTCJul 24, 12:15 UTC2h 45m
2026-07-24 TNO7087 LAX → NLU Jul 24, 01:55 UTCJul 24, 03:15 UTC1h 20m
2026-07-23 TNO7085 MTY → NLU Jul 23, 14:55 UTCJul 23, 22:25 UTC7h 30m
2026-07-23 TNO4260 MID → LAX Jul 23, 10:55 UTCJul 23, 12:20 UTC1h 25m
2026-07-23 TNO4260 MID → LAX Jul 23, 09:20 UTCJul 23, 09:30 UTC10m
2026-07-23 TNO4260 MID → LAX Jul 23, 03:20 UTCJul 23, 07:20 UTC4h 0m
2026-07-22 TPA4034 UIO → MIA Jul 22, 20:50 UTCJul 23, 00:30 UTC3h 40m
2026-07-22 TPA4001 MIA → BOG Jul 22, 15:05 UTCJul 22, 18:00 UTC2h 55m
2026-07-22 TPA4069 GUA → SJO Jul 22, 00:55 UTCJul 22, 03:15 UTC2h 20m
2026-07-21 TPA4069 GUA → SJO Jul 21, 21:10 UTCJul 21, 23:20 UTC2h 10m
2026-07-21 TNO4274 - Jul 21, 16:40 UTCJul 21, 18:25 UTC1h 45m
2026-07-21 TNO4273 - Jul 21, 13:45 UTCJul 21, 14:05 UTC20m
2026-07-21 TNO4273 - Jul 21, 09:15 UTCJul 21, 11:45 UTC2h 30m
2026-07-21 TPA4006 BOG → MIA Jul 21, 00:10 UTCJul 21, 03:20 UTC3h 10m
2026-07-20 TPA4088 - Jul 20, 16:25 UTCJul 20, 21:15 UTC4h 50m
2026-07-20 TPA4089 ASU → VCP Jul 20, 08:25 UTCJul 20, 13:25 UTC5h 0m
2026-07-20 TPA4089 ASU → VCP Jul 20, 06:35 UTCJul 20, 06:55 UTC20m
2026-07-20 TNO4264 - Jul 20, 00:55 UTCJul 20, 02:25 UTC1h 30m
2026-07-19 TNO4263 MIA → GUA Jul 19, 22:35 UTCJul 19, 22:55 UTC20m
2026-07-19 TNO4263 MIA → GUA Jul 19, 18:15 UTCJul 19, 20:30 UTC2h 15m
2026-07-19 TPA4256 MIA → CWF Jul 19, 14:15 UTCJul 19, 16:05 UTC1h 50m
2026-06-30 TPA4256 - Jun 30, 13:10 UTCJun 30, 14:50 UTC1h 40m
2026-06-30 TPA4200 - Jun 30, 10:55 UTCJun 30, 11:30 UTC35m
2026-06-29 TPA4094 - Jun 29, 17:14 UTCJun 29, 22:15 UTC5h 0m
2026-06-29 TPA4093 - Jun 29, 06:40 UTCJun 29, 15:00 UTC8h 20m
2026-06-29 TPA4214 BOG → MIA Jun 29, 02:00 UTCJun 29, 02:39 UTC40m
2026-06-28 TPA4054 - Jun 28, 12:19 UTCJun 28, 16:29 UTC4h 10m
2026-06-28 TPA4087 - Jun 28, 08:59 UTCJun 28, 10:24 UTC1h 25m
2026-06-27 TPA4087 - Jun 27, 23:19 UTCJun 28, 06:10 UTC6h 50m
2026-06-27 TPA4210 - Jun 27, 18:15 UTCJun 27, 18:49 UTC35m
2026-06-27 TPA4080 - Jun 27, 07:15 UTCJun 27, 12:09 UTC4h 55m
2026-06-27 TPA4051 - Jun 27, 01:59 UTCJun 27, 04:29 UTC2h 30m
2026-06-26 TPA4051 - Jun 26, 16:20 UTCJun 26, 23:44 UTC7h 25m
2026-06-26 TPA4008 BOG → MIA Jun 26, 12:29 UTCJun 26, 12:59 UTC30m
2026-06-26 TPA4087 - Jun 26, 02:44 UTCJun 26, 06:29 UTC3h 45m
2026-06-25 TPA4087 - Jun 25, 17:44 UTCJun 26, 00:39 UTC6h 55m
2026-06-25 TPA4092 - Jun 25, 12:50 UTCJun 25, 14:44 UTC1h 55m
2026-06-25 TPA4092 - Jun 25, 06:55 UTCJun 25, 07:05 UTC10m
2026-06-24 TPA4045 - Jun 24, 22:10 UTCJun 24, 22:49 UTC40m
2026-06-24 TPA4045 - Jun 24, 13:14 UTCJun 24, 20:09 UTC6h 55m
2026-06-24 TPA4002 BOG → MIA Jun 24, 10:25 UTCJun 24, 10:59 UTC35m
2026-06-24 TPA4211 - Jun 24, 00:55 UTCJun 24, 01:14 UTC20m
2026-06-23 TNO4274 - Jun 23, 15:19 UTCJun 23, 19:55 UTC4h 35m

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 N334QT page for operator, model, and routing details .

Mode-S A3A61B frequently asked

What is Mode-S code A3A61B?
A3A61B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N334QT.
Where is Mode-S A3A61B registered?
Mode-S code A3A61B 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 A3A61B broadcasting right now?
Yes. Mode-S A3A61B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3A61B, octal 50723033, decimal 10,724,891.
What flights does A3A61B operate?
Mode-S A3A61B has broadcast 20 distinct callsigns, including TPA4051, TPA4092, TNO4260, TPA4091, TPA4045.