Apparatus

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sensors Mode-S transponder

06A1CD

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-CGH · GULFSTREAM G650

Hex
06A1CD
Octal
01520715
Decimal
434,637
Country
QA
Tail
A7-CGH
Type
GLF6
No current signal · last broadcast 5h ago
Flights observed
74
Distinct callsigns
20
Country
QA
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 06A1CD.

Country allocation

The ICAO 24-bit address 06A1CD 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
QQE780 - 5 2026-04-19
QQE734 - 4 2026-06-25
QQE725 - 4 2026-04-16
QQE275 - 4 2026-04-25
QQE952 - 3 2026-06-26
QQE935 - 3 2026-04-18
QQE927 - 3 2026-06-02
QQE924 - 3 2026-07-08
QQE793 - 3 2026-06-20
QQE760 - 3 2026-06-08
QQE730 - 3 2026-05-15
QQE521 - 3 2026-06-28
QQE243 - 3 2026-07-03
QQE801 - 2 2026-07-10
QQE779 - 2 2026-05-25
QQE764 - 2 2026-07-17
QQE756 - 2 2026-07-01
QQE752 - 2 2026-05-12
QQE706 - 2 2026-07-12
QQE508 - 2 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 QQE764 IAD → SEN Jul 17, 18:10 UTCJul 18, 00:39 UTC6h 30m
2026-07-17 QQE764 TEB → IAD Jul 17, 15:55 UTCJul 17, 16:44 UTC50m
2026-07-14 QQE228 MXP → TEB Jul 14, 09:25 UTCJul 14, 17:10 UTC7h 45m
2026-07-12 QQE228 - Jul 12, 20:30 UTCJul 12, 23:05 UTC2h 35m
2026-07-12 QQE706 - Jul 12, 18:55 UTCJul 12, 19:20 UTC25m
2026-07-12 QQE706 DIA → ATH Jul 12, 13:40 UTCJul 12, 17:45 UTC4h 5m
2026-07-11 QQE921 - Jul 11, 04:35 UTCJul 11, 18:20 UTC13h 45m
2026-07-10 QQE801 DBB → DIA Jul 10, 15:10 UTCJul 10, 18:20 UTC3h 10m
2026-07-10 QQE801 - Jul 10, 11:15 UTCJul 10, 14:00 UTC2h 45m
2026-07-08 QQE924 IAD → DIA Jul 8, 03:40 UTCJul 8, 15:45 UTC12h 5m
2026-07-07 QQE924 - Jul 7, 11:35 UTCJul 7, 18:45 UTC7h 10m
2026-07-05 QQE924 - Jul 5, 22:35 UTCJul 6, 06:15 UTC7h 40m
2026-07-03 QQE243 - Jul 3, 16:25 UTCJul 3, 17:00 UTC35m
2026-07-03 QQE243 - Jul 3, 08:25 UTCJul 3, 09:40 UTC1h 15m
2026-07-02 QQE243 LBG → LTN Jul 2, 05:00 UTCJul 2, 06:15 UTC1h 15m
2026-07-01 QQE756 - Jul 1, 20:25 UTCJul 2, 04:00 UTC7h 35m
2026-06-30 QQE756 YYC → SJU Jun 30, 13:45 UTCJun 30, 20:05 UTC6h 20m
2026-06-28 QQE521 - Jun 28, 07:25 UTCJun 28, 16:14 UTC8h 50m
2026-06-27 QQE521 - Jun 27, 10:14 UTCJun 27, 13:04 UTC2h 50m
2026-06-26 QQE521 - Jun 26, 13:45 UTCJun 27, 13:04 UTC23h 20m
2026-06-26 QQE952 - Jun 26, 11:20 UTCJun 27, 11:14 UTC23h 55m
2026-06-26 QQE952 - Jun 26, 07:45 UTCJun 26, 14:05 UTC6h 20m
2026-06-26 QQE952 - Jun 26, 02:05 UTCJun 26, 05:55 UTC3h 50m
2026-06-25 QQE734 ATH → ISL Jun 25, 06:25 UTCJun 25, 07:19 UTC55m
2026-06-24 QQE734 TEB → ATH Jun 24, 20:05 UTCJun 25, 04:29 UTC8h 25m
2026-06-22 QQE734 ATH → TEB Jun 22, 06:25 UTCJun 22, 15:59 UTC9h 35m
2026-06-21 QQE734 NCE → ATH Jun 21, 12:04 UTCJun 21, 13:59 UTC1h 55m
2026-06-20 QQE793 - Jun 20, 00:44 UTCJun 20, 09:24 UTC8h 40m
2026-06-18 QQE793 - Jun 18, 17:30 UTCJun 18, 18:05 UTC35m
2026-06-17 QQE310 - Jun 17, 11:00 UTCJun 17, 13:45 UTC2h 45m
2026-06-17 QQE310 - Jun 17, 07:45 UTCJun 17, 08:35 UTC50m
2026-06-15 QQE224 - Jun 15, 01:20 UTCJun 15, 11:15 UTC9h 55m
2026-06-14 QQE224 VNY → PDX Jun 14, 05:15 UTCJun 14, 07:00 UTC1h 45m
2026-06-10 QQE278 - Jun 10, 18:15 UTCJun 11, 04:15 UTC10h 0m
2026-06-10 QQE278 - Jun 10, 15:45 UTCJun 10, 16:30 UTC45m
2026-06-09 QQE704 - Jun 9, 07:55 UTCJun 9, 17:50 UTC9h 55m
2026-06-08 QQE760 - Jun 8, 08:45 UTCJun 8, 14:20 UTC5h 35m
2026-06-05 QQE760 - Jun 5, 10:15 UTCJun 5, 12:35 UTC2h 20m
2026-06-05 QQE760 - Jun 5, 07:10 UTCJun 5, 08:20 UTC1h 10m
2026-06-02 QQE758 - Jun 2, 23:00 UTCJun 3, 11:45 UTC12h 45m
2026-06-02 QQE927 - Jun 2, 01:30 UTCJun 2, 10:05 UTC8h 35m
2026-06-01 QQE240 - Jun 1, 10:25 UTCJun 1, 11:00 UTC35m
2026-06-01 QQE927 LYS → JFK Jun 1, 01:30 UTCJun 1, 09:00 UTC7h 30m
2026-05-31 QQE927 - May 31, 09:35 UTCMay 31, 09:55 UTC20m
2026-05-27 QQE240 VIE → GVA May 27, 07:20 UTCMay 27, 08:35 UTC1h 15m
2026-05-26 QQE793 - May 26, 04:04 UTCMay 26, 14:40 UTC10h 35m
2026-05-25 QQE779 LAS → LTN May 25, 05:55 UTCMay 25, 14:55 UTC9h 0m
2026-05-23 QQE779 NUQ → LAS May 23, 17:55 UTCMay 23, 18:55 UTC1h 0m
2026-05-17 QQE215 - May 17, 04:25 UTCMay 17, 14:01 UTC9h 35m
2026-05-16 QQE215 - May 16, 08:26 UTCMay 16, 10:05 UTC1h 40m

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

Mode-S 06A1CD frequently asked

What is Mode-S code 06A1CD?
06A1CD is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-CGH.
Where is Mode-S 06A1CD registered?
Mode-S code 06A1CD is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A1CD broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A1CD, octal 01520715, decimal 434,637.
What flights does 06A1CD operate?
Mode-S 06A1CD has broadcast 20 distinct callsigns, including QQE780, QQE734, QQE725, QQE275, QQE952.