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
No current signal · last broadcast 13d ago
Flights observed
235
Distinct callsigns
20
Country
US
Last broadcast
13d ago

Last known position

Most recent position reported by Mode-S A3A61B.

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
TPA4091 Tampa Cargo 10 2026-05-18
TPA4045 - 9 2026-06-24
TNO7081 Aerotransporte de Carga Union 8 2026-05-30
TNO4260 Aerotransporte de Carga Union 8 2026-06-12
TPA4059 - 7 2026-06-19
TPA4210 - 6 2026-06-27
TPA4089 Tampa Cargo 6 2026-05-25
TPA4087 - 6 2026-06-28
TPA4036 - 6 2026-06-20
TNO4274 - 6 2026-06-23
TNO4273 - 6 2026-06-23
TPA4200 - 5 2026-06-30
TNO4276 - 5 2026-06-22
TPA4054 - 4 2026-06-28
TPA4003 Tampa Cargo 4 2026-05-30
TPA4250 - 3 2026-05-28
TPA4230 Tampa Cargo 3 2026-04-24
TPA4224 Tampa Cargo 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-06-23 TNO4273 - Jun 23, 09:59 UTCJun 23, 12:09 UTC2h 10m
2026-06-22 TNO4276 - Jun 22, 12:15 UTCJun 22, 14:55 UTC2h 40m
2026-06-21 TPA4060 VIX → BOG Jun 21, 22:34 UTCJun 22, 10:19 UTC11h 45m
2026-06-21 TPA4051 - Jun 21, 19:50 UTCJun 21, 20:09 UTC20m
2026-06-21 TPA4051 - Jun 21, 17:15 UTCJun 21, 17:35 UTC20m
2026-06-21 TPA4051 - Jun 21, 07:49 UTCJun 21, 15:25 UTC7h 35m
2026-06-20 TPA4036 - Jun 20, 12:59 UTCJun 21, 00:14 UTC11h 15m
2026-06-20 TPA4200 - Jun 20, 09:44 UTCJun 20, 10:20 UTC35m
2026-06-19 TPA4201 - Jun 19, 22:30 UTCJun 20, 01:14 UTC2h 45m
2026-06-19 TPA4220 - Jun 19, 19:39 UTCJun 19, 20:19 UTC40m
2026-06-19 TPA4052 - Jun 19, 05:59 UTCJun 19, 10:59 UTC5h 0m
2026-06-19 TPA4059 - Jun 19, 02:54 UTCJun 19, 03:44 UTC50m
2026-06-19 TPA4059 - Jun 19, 00:55 UTCJun 19, 01:15 UTC20m
2026-06-18 TPA4059 - Jun 18, 15:50 UTCJun 18, 23:30 UTC7h 40m
2026-06-18 TPA4036 BOG → MIA Jun 18, 06:50 UTCJun 18, 13:20 UTC6h 30m
2026-06-17 TPA4071 MIA → PTY Jun 17, 22:45 UTCJun 18, 04:20 UTC5h 35m
2026-06-17 TNO4268 SJO → MIA Jun 17, 14:15 UTCJun 17, 20:05 UTC5h 50m
2026-06-17 TNO4269 - Jun 17, 09:55 UTCJun 17, 12:05 UTC2h 10m
2026-06-16 TPA4036 - Jun 16, 11:30 UTCJun 16, 23:15 UTC11h 46m
2026-06-16 TNO4274 SAP → MIA Jun 16, 04:50 UTCJun 16, 07:40 UTC2h 50m
2026-06-15 TNO4274 SAP → MIA Jun 15, 22:30 UTCJun 16, 02:29 UTC4h 0m
2026-06-15 TPA4001 MIA → BOG Jun 15, 16:35 UTCJun 15, 19:35 UTC3h 0m
2026-06-15 TNO4276 NLU → MIA Jun 15, 11:19 UTCJun 15, 14:05 UTC2h 45m
2026-06-14 TPA4060 VIX → BOG Jun 14, 22:30 UTCJun 15, 09:25 UTC10h 55m
2026-06-14 TPA4051 VCP → EZE Jun 14, 19:55 UTCJun 14, 20:30 UTC35m
2026-06-14 TPA4051 VCP → EZE Jun 14, 17:45 UTCJun 14, 18:25 UTC40m
2026-06-14 TPA4051 VCP → EZE Jun 14, 06:55 UTCJun 14, 15:30 UTC8h 35m
2026-06-13 TPA4004 BOG → MIA Jun 13, 12:40 UTCJun 13, 13:15 UTC35m

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?
No active broadcast right now. Last signal was 13d ago.
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, TPA4091, TPA4045, TNO7081.