Apparatus

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sensors Mode-S transponder

06A1D1

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-CGM · GULFSTREAM G650

Hex
06A1D1
Octal
01520721
Decimal
434,641
Country
QA
Tail
A7-CGM
Type
GLF6
No current signal · last broadcast 16h ago
Flights observed
61
Distinct callsigns
20
Country
QA
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 06A1D1.

Country allocation

The ICAO 24-bit address 06A1D1 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 20 distinct

Callsign Airline Flights Last seen
QQE723 - 4 2026-07-03
QQE203 - 4 2026-07-22
QQE745 - 3 2026-06-22
QQE710 - 3 2026-04-19
QQE535 - 3 2026-07-19
QQE504 - 3 2026-07-06
QQE225 - 3 2026-05-02
QQE903 - 2 2026-06-10
QQE798 - 2 2026-05-07
QQE784 - 2 2026-07-01
QQE746 - 2 2026-05-31
QQE720 - 2 2026-06-07
QQE719 - 2 2026-05-24
QQE571 - 2 2026-07-14
QQE534 - 2 2026-07-07
QQE532 - 2 2026-05-16
QQE529 - 2 2026-06-24
QQE345 - 2 2026-05-04
QQE306 - 2 2026-05-27
QQE263 - 2 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 QQE785 - Jul 23, 14:15 UTCJul 23, 19:45 UTC5h 30m
2026-07-22 QQE203 - Jul 22, 12:45 UTCJul 22, 18:40 UTC5h 55m
2026-07-22 QQE203 - Jul 22, 01:50 UTCJul 22, 10:25 UTC8h 35m
2026-07-20 QQE203 - Jul 20, 09:05 UTCJul 20, 09:25 UTC20m
2026-07-20 QQE203 - Jul 20, 06:00 UTCJul 20, 06:15 UTC15m
2026-07-19 QQE535 - Jul 19, 11:30 UTCJul 19, 11:50 UTC20m
2026-07-17 QQE535 - Jul 17, 10:20 UTCJul 17, 10:35 UTC15m
2026-07-14 QQE535 HND → HKG Jul 14, 21:10 UTCJul 15, 00:35 UTC3h 24m
2026-07-14 QQE571 - Jul 14, 16:25 UTCJul 14, 20:00 UTC3h 35m
2026-07-14 QQE571 - Jul 14, 13:15 UTCJul 14, 13:25 UTC10m
2026-07-12 QQE502 - Jul 12, 20:10 UTCJul 13, 08:35 UTC12h 25m
2026-07-09 QQE256 - Jul 9, 13:10 UTCJul 9, 13:30 UTC20m
2026-07-07 QQE534 - Jul 7, 05:55 UTCJul 7, 14:15 UTC8h 20m
2026-07-06 QQE534 - Jul 6, 08:50 UTCJul 7, 04:15 UTC19h 25m
2026-07-06 QQE504 - Jul 6, 05:25 UTCJul 6, 06:35 UTC1h 10m
2026-07-05 QQE504 - Jul 5, 12:15 UTCJul 5, 19:15 UTC7h 0m
2026-07-05 QQE504 - Jul 5, 09:00 UTCJul 5, 10:25 UTC1h 25m
2026-07-03 QQE723 - Jul 3, 15:20 UTCJul 3, 18:25 UTC3h 5m
2026-07-03 QQE723 - Jul 3, 05:40 UTCJul 3, 09:10 UTC3h 30m
2026-07-03 QQE723 - Jul 3, 03:05 UTCJul 3, 03:35 UTC30m
2026-07-02 QQE723 - Jul 2, 21:10 UTCJul 3, 01:10 UTC4h 0m
2026-07-01 QQE784 - Jul 1, 01:30 UTCJul 1, 10:25 UTC8h 55m
2026-06-29 QQE784 - Jun 29, 15:00 UTCJun 29, 18:55 UTC3h 55m
2026-06-26 QQE257 KIX → SAN Jun 26, 06:35 UTCJun 26, 16:09 UTC9h 35m
2026-06-26 QQE257 HND → KIX Jun 26, 04:30 UTCJun 26, 05:30 UTC1h 0m
2026-06-24 QQE529 - Jun 24, 14:24 UTCJun 25, 00:44 UTC10h 20m
2026-06-23 QQE529 SKG → ISL Jun 23, 10:10 UTCJun 23, 10:59 UTC50m
2026-06-22 QQE745 EFL → SKG Jun 22, 10:44 UTCJun 22, 11:30 UTC45m
2026-06-21 QQE745 - Jun 21, 23:30 UTCJun 22, 08:40 UTC9h 10m
2026-06-21 QQE745 - Jun 21, 08:20 UTCJun 21, 16:14 UTC7h 55m
2026-06-20 QQE770 DIA → LBG Jun 20, 05:59 UTCJun 20, 14:14 UTC8h 15m
2026-06-10 QQE903 - Jun 10, 11:10 UTCJun 10, 18:15 UTC7h 5m
2026-06-09 QQE903 - Jun 9, 16:50 UTCJun 9, 18:50 UTC2h 0m
2026-06-07 QQE720 - Jun 7, 20:45 UTCJun 8, 06:25 UTC9h 40m
2026-06-06 QQE720 - Jun 6, 11:09 UTCJun 6, 21:35 UTC10h 25m
2026-06-04 QQE293 NCE → LBG Jun 4, 14:50 UTCJun 4, 15:55 UTC1h 5m
2026-06-02 QQE204 BFI → NCE Jun 2, 23:10 UTCJun 3, 08:55 UTC9h 45m
2026-06-01 QQE204 LAX → BFI Jun 1, 23:20 UTCJun 2, 01:25 UTC2h 5m
2026-05-31 QQE746 - May 31, 21:05 UTCJun 1, 06:50 UTC9h 45m
2026-05-31 QQE746 - May 31, 09:50 UTCMay 31, 10:20 UTC30m
2026-05-28 QQE788 - May 28, 17:25 UTCMay 29, 00:00 UTC6h 35m
2026-05-27 QQE306 - May 27, 17:15 UTCMay 28, 00:15 UTC7h 0m
2026-05-26 QQE306 - May 26, 08:19 UTCMay 26, 16:00 UTC7h 40m
2026-05-24 QQE719 - May 24, 23:30 UTCMay 25, 08:10 UTC8h 40m
2026-05-23 QQE719 - May 23, 16:50 UTCMay 23, 19:15 UTC2h 25m
2026-05-17 QQE263 - May 17, 17:15 UTCMay 18, 04:25 UTC11h 10m
2026-05-17 QQE263 - May 17, 14:01 UTCMay 17, 15:15 UTC1h 15m
2026-05-16 QQE532 - May 16, 14:51 UTCMay 16, 21:50 UTC7h 0m
2026-05-15 QQE532 - May 15, 06:05 UTCMay 15, 09:30 UTC3h 25m
2026-05-07 QQE798 - May 7, 12:40 UTCMay 7, 17:55 UTC5h 15m

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-CGM page for operator, model, and routing details .

Mode-S 06A1D1 frequently asked

What is Mode-S code 06A1D1?
06A1D1 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-CGM.
Where is Mode-S 06A1D1 registered?
Mode-S code 06A1D1 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A1D1 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A1D1, octal 01520721, decimal 434,641.
What flights does 06A1D1 operate?
Mode-S 06A1D1 has broadcast 20 distinct callsigns, including QQE723, QQE203, QQE745, QQE710, QQE535.