sensors Mode-S transponder

A34020

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3085Q · AIR TRACTOR AT-802 · operated by AERO SPRAY INC DBA, DAUNTLESS AIR

Hex
A34020
Octal
50640040
Decimal
10,698,784
Country
US
Tail
N3085Q
Type
AT8T
No current signal · last broadcast 3d ago
Flights observed
34
Distinct callsigns
2
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A34020.

Country allocation

The ICAO 24-bit address A34020 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 2 distinct

Callsign Airline Flights Last seen
N3085Q - 30 2026-06-28
S409 - 4 2026-07-10

Recent flights last 34

DateFlightRouteTakeoffLandingDuration
2026-07-10 S409 - Jul 10, 21:25 UTCJul 10, 21:35 UTC10m
2026-07-08 S409 - Jul 8, 22:00 UTCJul 8, 22:10 UTC10m
2026-07-06 S409 - Jul 6, 04:15 UTCJul 6, 04:25 UTC10m
2026-07-06 S409 - Jul 6, 01:45 UTCJul 6, 02:15 UTC30m
2026-06-28 N3085Q - Jun 28, 22:04 UTCJun 28, 22:15 UTC10m
2026-06-28 N3085Q - Jun 28, 00:04 UTCJun 28, 00:25 UTC20m
2026-06-24 N3085Q - Jun 24, 21:50 UTCJun 24, 21:54 UTC5m
2026-06-23 N3085Q - Jun 23, 22:10 UTCJun 23, 22:19 UTC10m
2026-06-23 N3085Q - Jun 23, 02:15 UTCJun 23, 02:29 UTC15m
2026-06-22 N3085Q - Jun 22, 23:05 UTCJun 22, 23:29 UTC25m
2026-06-22 N3085Q - Jun 22, 21:25 UTCJun 22, 21:40 UTC15m
2026-06-21 N3085Q - Jun 21, 21:44 UTCJun 21, 22:10 UTC25m
2026-06-21 N3085Q - Jun 21, 20:09 UTCJun 21, 21:05 UTC55m
2026-06-21 N3085Q - Jun 21, 03:19 UTCJun 21, 06:10 UTC2h 50m
2026-06-20 N3085Q - Jun 20, 06:35 UTCJun 20, 07:19 UTC45m
2026-06-20 N3085Q FBK → TKA Jun 20, 03:04 UTCJun 20, 06:05 UTC3h 0m
2026-06-19 N3085Q - Jun 19, 01:34 UTCJun 19, 03:05 UTC1h 30m
2026-06-18 N3085Q FBK → ENA Jun 18, 02:40 UTCJun 18, 06:05 UTC3h 25m
2026-06-13 N3085Q - Jun 13, 22:05 UTCJun 13, 22:25 UTC20m
2026-06-13 N3085Q - Jun 13, 19:15 UTCJun 13, 19:40 UTC25m
2026-06-12 N3085Q - Jun 12, 21:05 UTCJun 12, 21:10 UTC5m
2026-06-08 N3085Q - Jun 8, 02:35 UTCJun 8, 03:50 UTC1h 15m
2026-06-04 N3085Q FBK → PAQ Jun 4, 22:05 UTCJun 4, 23:35 UTC1h 30m
2026-05-28 N3085Q FBK → FBK May 28, 19:35 UTCMay 28, 20:20 UTC45m
2026-05-15 N3085Q - May 15, 21:45 UTCMay 15, 22:10 UTC25m
2026-05-15 N3085Q - May 15, 00:20 UTCMay 15, 00:35 UTC15m
2026-05-14 N3085Q - May 14, 23:10 UTCMay 14, 23:20 UTC10m
2026-05-14 N3085Q - May 14, 21:20 UTCMay 14, 21:35 UTC15m
2026-05-14 N3085Q - May 14, 20:15 UTCMay 14, 20:30 UTC15m
2026-05-14 N3085Q - May 14, 19:20 UTCMay 14, 19:30 UTC10m
2026-05-14 N3085Q - May 14, 17:20 UTCMay 14, 17:25 UTC5m
2026-05-12 N3085Q - May 12, 22:01 UTCMay 12, 22:20 UTC20m
2026-05-11 N3085Q - May 11, 17:35 UTCMay 11, 18:20 UTC45m
2026-05-09 N3085Q - May 9, 20:05 UTCMay 9, 20:40 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 N3085Q page for operator, model, and routing details .

Mode-S A34020 frequently asked

What is Mode-S code A34020?
A34020 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3085Q.
Where is Mode-S A34020 registered?
Mode-S code A34020 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 A34020 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A34020, octal 50640040, decimal 10,698,784.
What flights does A34020 operate?
Mode-S A34020 has broadcast 2 distinct callsigns, including N3085Q, S409.