Apparatus

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sensors Mode-S transponder

06A101

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-ALM · AIRBUS A-350-900

Hex
06A101
Octal
01520401
Decimal
434,433
Country
QA
Tail
A7-ALM
Type
A359
Transponder active on ground
Flights observed
121
Distinct callsigns
20
Country
QA
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 06A101.

Country allocation

The ICAO 24-bit address 06A101 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
QTR74N Qatar Airways 6 2026-06-11
QTR99X Qatar Airways 5 2026-06-10
QTR69G Qatar Airways 5 2026-05-04
QTR124 Qatar Airways 5 2026-06-02
QTR841 Qatar Airways 4 2026-05-26
QTR49F Qatar Airways 4 2026-06-11
QTR9T - 3 2026-06-11
QTR957 Qatar Airways 3 2026-06-01
QTR955 Qatar Airways 3 2026-05-03
QTR954 Qatar Airways 3 2026-05-03
QTR92Q Qatar Airways 3 2026-04-17
QTR8Q Qatar Airways 3 2026-05-25
QTR85R Qatar Airways 3 2026-06-09
QTR7C Qatar Airways 3 2026-06-09
QTR4R Qatar Airways 3 2026-06-02
QTR3E - 3 2026-04-17
QTR23Y Qatar Airways 3 2026-04-26
QTR958 Qatar Airways 2 2026-04-28
QTR956 Qatar Airways 2 2026-05-17
QTR90V Qatar Airways 2 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-12 QTR54X - Jun 12, 22:10 UTCJun 12, 22:50 UTC40m
2026-06-12 QTR16K CPH → DOH Jun 12, 00:20 UTCJun 12, 20:05 UTC19h 45m
2026-06-11 QTR9T - Jun 11, 23:00 UTCJun 12, 20:05 UTC21h 5m
2026-06-11 QTR2V DOH → MAN Jun 11, 16:10 UTCJun 12, 01:10 UTC9h 1m
2026-06-11 QTR74N DOH → MEL Jun 11, 08:30 UTCJun 11, 12:15 UTC3h 45m
2026-06-11 QTR49F CDG → DOH Jun 11, 02:00 UTCJun 11, 03:55 UTC1h 55m
2026-06-10 QTR99X DOH → CPH Jun 10, 20:10 UTCJun 10, 20:40 UTC30m
2026-06-10 QTR99X DOH → CPH Jun 10, 18:35 UTCJun 10, 18:50 UTC15m
2026-06-10 QTR99X DOH → CPH Jun 10, 15:25 UTCJun 10, 18:30 UTC3h 5m
2026-06-09 QTR7C DOH → JNB Jun 9, 23:05 UTCJun 9, 23:30 UTC25m
2026-06-09 QTR85R ALG → DOH Jun 9, 17:50 UTCJun 9, 21:00 UTC3h 10m
2026-06-08 QTR9T DOH → BEY Jun 8, 22:40 UTCJun 8, 23:30 UTC50m
2026-06-08 QTR2V DOH → MAN Jun 8, 18:05 UTCJun 8, 20:40 UTC2h 35m
2026-06-07 QTR18M AMS → ORD Jun 7, 18:05 UTCJun 8, 00:25 UTC6h 20m
2026-06-07 QTR83R - Jun 7, 11:00 UTCJun 7, 15:40 UTC4h 40m
2026-06-06 QTR7C DOH → JNB Jun 6, 22:50 UTCJun 6, 23:00 UTC10m
2026-06-06 QTR85R ALG → DOH Jun 6, 20:19 UTCJun 6, 20:49 UTC30m
2026-06-05 QTR9T DOH → BEY Jun 5, 23:30 UTCJun 6, 20:49 UTC21h 20m
2026-06-05 QTR74N DOH → MEL Jun 5, 08:30 UTCJun 5, 12:05 UTC3h 35m
2026-06-05 QTR49F CDG → DOH Jun 5, 03:30 UTCJun 5, 03:55 UTC25m
2026-06-05 QTR49F CDG → DOH Jun 5, 02:05 UTCJun 5, 02:30 UTC25m
2026-06-04 QTR31B DOH → BAH Jun 4, 14:10 UTCJun 4, 19:50 UTC5h 40m
2026-06-04 QTR099 DOH → GVA Jun 4, 06:55 UTCJun 4, 12:30 UTC5h 35m
2026-06-03 QTR3J LUX → ATL Jun 3, 05:20 UTCJun 3, 05:30 UTC10m
2026-06-03 QTR52U BSL → DOH Jun 3, 02:45 UTCJun 3, 03:30 UTC45m
2026-06-02 QTR124 MXP → DOH Jun 2, 10:00 UTCJun 2, 15:05 UTC5h 5m
2026-06-02 QTR4R LHE → DOH Jun 2, 00:15 UTCJun 2, 06:15 UTC6h 0m
2026-06-01 QTR957 CGK → DOH Jun 1, 19:20 UTCJun 1, 19:30 UTC10m
2026-06-01 QTR957 CGK → DOH Jun 1, 15:35 UTCJun 1, 17:10 UTC1h 35m
2026-06-01 QTR957 CGK → DOH Jun 1, 11:40 UTCJun 1, 11:55 UTC15m
2026-06-01 QTR1956 DOH → CGK Jun 1, 08:05 UTCJun 1, 08:25 UTC20m
2026-06-01 QTR1956 DOH → CGK Jun 1, 02:15 UTCJun 1, 07:35 UTC5h 20m
2026-05-31 QTR4T NCE → DOH May 31, 19:05 UTCMay 31, 19:35 UTC30m
2026-05-31 QTR4T NCE → DOH May 31, 14:20 UTCMay 31, 17:50 UTC3h 30m
2026-05-30 QTR19W DOH → LIS May 30, 17:35 UTCMay 31, 11:00 UTC17h 25m
2026-05-30 QTR50K DOH → ISB May 30, 10:15 UTCMay 30, 10:50 UTC35m
2026-05-29 QTR36A LHR → LHR May 29, 02:40 UTCMay 29, 07:05 UTC4h 25m
2026-05-28 QTR90C DOH → IAD May 28, 19:20 UTCMay 29, 00:05 UTC4h 45m
2026-05-27 QTR840 DOH → HKT May 27, 02:09 UTCMay 27, 18:25 UTC16h 15m
2026-05-26 QTR841 HKT → DOH May 26, 16:40 UTCMay 27, 03:34 UTC10h 55m
2026-05-26 QTR841 HKT → DOH May 26, 02:19 UTCMay 27, 02:14 UTC23h 55m
2026-05-25 QTR8Q LHR → DOH May 25, 17:10 UTCMay 25, 20:50 UTC3h 40m
2026-05-25 QTR49Q CPH → DOH May 25, 08:20 UTCMay 25, 12:30 UTC4h 10m
2026-05-24 QTR124 MXP → DOH May 24, 09:15 UTCMay 24, 14:35 UTC5h 20m
2026-05-23 QTR841 HKT → DOH May 23, 01:55 UTCMay 23, 18:00 UTC16h 4m
2026-05-22 QTR2R MAN → DOH May 22, 09:35 UTCMay 23, 02:30 UTC16h 54m
2026-05-21 QTR7T - May 21, 16:35 UTCMay 22, 05:35 UTC13h 0m
2026-05-21 QTR841 HKT → DOH May 21, 02:20 UTCMay 21, 18:10 UTC15h 50m
2026-05-20 QTR2R MAN → DOH May 20, 09:20 UTCMay 21, 03:45 UTC18h 25m
2026-05-19 QTR829 BKK → DOH May 19, 12:10 UTCMay 19, 16:35 UTC4h 25m

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

Mode-S 06A101 frequently asked

What is Mode-S code 06A101?
06A101 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-ALM.
Where is Mode-S 06A101 registered?
Mode-S code 06A101 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A101 broadcasting right now?
Mode-S 06A101 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A101, octal 01520401, decimal 434,433.
What flights does 06A101 operate?
Mode-S 06A101 has broadcast 20 distinct callsigns, including QTR74N, QTR99X, QTR69G, QTR124, QTR841.