Apparatus

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sensors Mode-S transponder

06A3B1

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-GQD · AGUSTA AW-139

Hex
06A3B1
Octal
01521661
Decimal
435,121
Country
QA
Tail
A7-GQD
Type
A139
No current signal · last broadcast 2d ago
Flights observed
162
Distinct callsigns
1
Country
QA
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 06A3B1.

Country allocation

The ICAO 24-bit address 06A3B1 falls within the block assigned to Qatar (QA) by ICAO Annex 10, Volume III. Every aircraft registered in Qatar 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 1 distinct

Callsign Airline Flights Last seen
A7GQD - 162 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 A7GQD - Jul 16, 10:00 UTCJul 16, 10:45 UTC45m
2026-07-16 A7GQD - Jul 16, 09:00 UTCJul 16, 09:50 UTC50m
2026-07-16 A7GQD - Jul 16, 08:15 UTCJul 16, 08:40 UTC25m
2026-07-16 A7GQD - Jul 16, 07:40 UTCJul 16, 08:10 UTC30m
2026-07-16 A7GQD - Jul 16, 07:20 UTCJul 16, 07:30 UTC10m
2026-07-16 A7GQD - Jul 16, 06:20 UTCJul 16, 07:10 UTC50m
2026-07-16 A7GQD - Jul 16, 04:20 UTCJul 16, 04:45 UTC25m
2026-07-16 A7GQD - Jul 16, 03:45 UTCJul 16, 04:10 UTC25m
2026-07-15 A7GQD - Jul 15, 09:10 UTCJul 15, 09:55 UTC45m
2026-07-15 A7GQD - Jul 15, 08:50 UTCJul 15, 09:05 UTC15m
2026-07-15 A7GQD - Jul 15, 08:25 UTCJul 15, 08:45 UTC20m
2026-07-15 A7GQD - Jul 15, 07:45 UTCJul 15, 08:10 UTC25m
2026-07-15 A7GQD DIA → DIA Jul 15, 04:25 UTCJul 15, 05:40 UTC1h 15m
2026-07-14 A7GQD - Jul 14, 09:20 UTCJul 14, 10:15 UTC55m
2026-07-14 A7GQD - Jul 14, 08:25 UTCJul 14, 09:10 UTC45m
2026-07-14 A7GQD - Jul 14, 05:50 UTCJul 14, 06:10 UTC20m
2026-07-14 A7GQD - Jul 14, 04:35 UTCJul 14, 05:20 UTC45m
2026-07-12 A7GQD - Jul 12, 14:05 UTCJul 12, 14:40 UTC35m
2026-07-12 A7GQD - Jul 12, 12:55 UTCJul 12, 13:55 UTC1h 0m
2026-07-12 A7GQD DIA → DIA Jul 12, 10:35 UTCJul 12, 12:01 UTC1h 25m
2026-07-09 A7GQD - Jul 9, 13:30 UTCJul 9, 13:50 UTC20m
2026-07-09 A7GQD - Jul 9, 11:40 UTCJul 9, 12:40 UTC1h 0m
2026-07-09 A7GQD - Jul 9, 10:40 UTCJul 9, 11:30 UTC50m
2026-07-09 A7GQD - Jul 9, 09:40 UTCJul 9, 10:10 UTC30m
2026-07-09 A7GQD - Jul 9, 08:10 UTCJul 9, 08:55 UTC45m
2026-07-06 A7GQD - Jul 6, 14:40 UTCJul 6, 15:05 UTC25m
2026-07-06 A7GQD - Jul 6, 11:45 UTCJul 6, 12:40 UTC55m
2026-07-06 A7GQD - Jul 6, 06:15 UTCJul 6, 06:40 UTC25m
2026-07-06 A7GQD - Jul 6, 04:10 UTCJul 6, 05:40 UTC1h 30m
2026-07-06 A7GQD - Jul 6, 03:50 UTCJul 6, 04:05 UTC15m
2026-07-06 A7GQD - Jul 6, 03:00 UTCJul 6, 03:45 UTC45m
2026-07-06 A7GQD - Jul 6, 02:25 UTCJul 6, 02:55 UTC30m
2026-07-05 A7GQD - Jul 5, 08:45 UTCJul 5, 09:05 UTC20m
2026-07-05 A7GQD - Jul 5, 07:10 UTCJul 5, 07:45 UTC35m
2026-07-05 A7GQD DIA → DIA Jul 5, 04:40 UTCJul 5, 05:45 UTC1h 5m
2026-07-04 A7GQD - Jul 4, 15:05 UTCJul 4, 16:00 UTC55m
2026-07-04 A7GQD - Jul 4, 13:55 UTCJul 4, 15:00 UTC1h 5m
2026-07-04 A7GQD - Jul 4, 13:00 UTCJul 4, 13:50 UTC50m
2026-07-04 A7GQD - Jul 4, 03:40 UTCJul 4, 04:10 UTC30m
2026-07-04 A7GQD - Jul 4, 03:00 UTCJul 4, 03:35 UTC35m
2026-07-04 A7GQD - Jul 4, 02:00 UTCJul 4, 02:40 UTC40m
2026-07-02 A7GQD - Jul 2, 14:35 UTCJul 2, 15:15 UTC40m
2026-07-02 A7GQD - Jul 2, 14:20 UTCJul 2, 14:30 UTC10m
2026-07-02 A7GQD - Jul 2, 14:00 UTCJul 2, 14:15 UTC15m
2026-07-02 A7GQD - Jul 2, 13:35 UTCJul 2, 13:45 UTC10m
2026-07-02 A7GQD - Jul 2, 13:15 UTCJul 2, 13:30 UTC15m
2026-07-02 A7GQD - Jul 2, 12:40 UTCJul 2, 12:55 UTC15m
2026-07-02 A7GQD - Jul 2, 11:40 UTCJul 2, 12:35 UTC55m
2026-07-02 A7GQD - Jul 2, 09:00 UTCJul 2, 09:40 UTC40m
2026-07-02 A7GQD - Jul 2, 08:00 UTCJul 2, 08:55 UTC55m

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 A7-GQD page for operator, model, and routing details .

Mode-S 06A3B1 frequently asked

What is Mode-S code 06A3B1?
06A3B1 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-GQD.
Where is Mode-S 06A3B1 registered?
Mode-S code 06A3B1 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A3B1 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A3B1, octal 01521661, decimal 435,121.
What flights does 06A3B1 operate?
Mode-S 06A3B1 has broadcast 1 distinct callsign, including A7GQD.