Apparatus

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sensors Mode-S transponder

06A0FF

ICAO 24-bit transponder address · allocated to Qatar

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

Hex
06A0FF
Octal
01520377
Decimal
434,431
Country
QA
Tail
A7-ALK
Type
A359
No current signal · last broadcast 1h ago
Flights observed
234
Distinct callsigns
20
Country
QA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 06A0FF.

Country allocation

The ICAO 24-bit address 06A0FF 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
QTR6R Qatar Airways 8 2026-04-25
QTR6B Qatar Airways 8 2026-04-30
QTR4T - 8 2026-07-06
QTR39C Qatar Airways 7 2026-05-01
QTR19W - 7 2026-07-06
QTR16K - 7 2026-06-22
QTR5V Qatar Airways 6 2026-04-30
QTR954 - 5 2026-06-15
QTR92Q Qatar Airways 5 2026-06-09
QTR88R Qatar Airways 5 2026-04-16
QTR85R Qatar Airways 5 2026-06-11
QTR3J - 5 2026-07-05
QTR31B - 5 2026-07-09
QTR27G Qatar Airways 5 2026-06-09
QTR959 - 4 2026-06-28
QTR957 Qatar Airways 4 2026-05-27
QTR54X - 4 2026-06-22
QTR41U - 4 2026-06-29
QTR36G - 4 2026-07-05
QTR18M - 4 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QTR803 - Jul 14, 10:05 UTCJul 14, 17:30 UTC7h 25m
2026-07-13 QTR802 - Jul 13, 23:05 UTCJul 14, 08:20 UTC9h 15m
2026-07-13 QTR67G - Jul 13, 09:15 UTCJul 13, 15:20 UTC6h 5m
2026-07-12 QTR8J - Jul 12, 23:35 UTCJul 13, 00:10 UTC35m
2026-07-12 QTR803 - Jul 12, 10:10 UTCJul 12, 19:55 UTC9h 45m
2026-07-11 QTR802 - Jul 11, 23:05 UTCJul 12, 08:20 UTC9h 15m
2026-07-11 QTR99X MXP → DOH Jul 11, 15:00 UTCJul 11, 20:25 UTC5h 25m
2026-07-11 QTR97L - Jul 11, 08:01 UTCJul 11, 11:20 UTC3h 20m
2026-07-11 QTR97L - Jul 11, 05:31 UTCJul 11, 05:50 UTC20m
2026-07-10 QTR37C CPT → DOH Jul 10, 11:25 UTCJul 10, 20:20 UTC8h 55m
2026-07-09 QTR50K - Jul 9, 23:20 UTCJul 9, 23:45 UTC25m
2026-07-09 QTR31B - Jul 9, 20:00 UTCJul 9, 20:35 UTC35m
2026-07-09 QTR31B - Jul 9, 15:00 UTCJul 9, 18:40 UTC3h 40m
2026-07-09 QTR099 - Jul 9, 06:25 UTCJul 9, 12:55 UTC6h 30m
2026-07-08 QTR891 - Jul 8, 19:50 UTCJul 9, 01:00 UTC5h 10m
2026-07-08 QTR891 - Jul 8, 03:50 UTCJul 9, 01:00 UTC21h 10m
2026-07-08 QTR891 - Jul 8, 02:50 UTCJul 9, 01:00 UTC22h 10m
2026-07-07 QTR890 - Jul 7, 23:50 UTCJul 8, 23:15 UTC23h 25m
2026-07-07 QTR890 - Jul 7, 23:05 UTCJul 8, 21:20 UTC22h 15m
2026-07-07 QTR31B - Jul 7, 19:45 UTCJul 7, 20:25 UTC40m
2026-07-07 QTR31B - Jul 7, 14:30 UTCJul 7, 17:35 UTC3h 5m
2026-07-07 QTR099 - Jul 7, 08:40 UTCJul 7, 12:40 UTC4h 0m
2026-07-07 QTR099 - Jul 7, 06:05 UTCJul 7, 06:25 UTC20m
2026-07-06 QTR4T NCE → DOH Jul 6, 14:55 UTCJul 6, 20:15 UTC5h 20m
2026-07-06 QTR19W - Jul 6, 06:15 UTCJul 6, 12:25 UTC6h 10m
2026-07-05 QTR36G AMS → DOH Jul 5, 20:35 UTCJul 6, 02:15 UTC5h 40m
2026-07-05 QTR40W DOH → AMS Jul 5, 12:20 UTCJul 5, 18:40 UTC6h 20m
2026-07-05 QTR3J - Jul 5, 07:35 UTCJul 5, 08:35 UTC1h 0m
2026-07-05 QTR3J - Jul 5, 04:55 UTCJul 5, 05:05 UTC10m
2026-07-04 QTR52U DOH → COK Jul 4, 23:00 UTCJul 5, 02:50 UTC3h 50m
2026-07-04 QTR4T NCE → DOH Jul 4, 14:20 UTCJul 4, 19:30 UTC5h 10m
2026-07-04 QTR19W - Jul 4, 05:35 UTCJul 4, 11:35 UTC6h 0m
2026-07-03 QTR1169 - Jul 3, 19:20 UTCJul 3, 19:50 UTC30m
2026-07-03 QTR1168 - Jul 3, 16:15 UTCJul 3, 16:35 UTC20m
2026-07-03 QTR124 - Jul 3, 08:00 UTCJul 3, 13:10 UTC5h 10m
2026-07-02 QTR4R LHE → DOH Jul 2, 23:25 UTCJul 3, 05:05 UTC5h 40m
2026-07-02 QTR4T NCE → DOH Jul 2, 14:10 UTCJul 2, 19:35 UTC5h 25m
2026-07-02 QTR19W - Jul 2, 05:35 UTCJul 2, 11:35 UTC6h 0m
2026-07-01 QTR24G - Jul 1, 17:45 UTCJul 2, 03:00 UTC9h 15m
2026-07-01 QTR85B - Jul 1, 06:20 UTCJul 1, 15:40 UTC9h 20m
2026-06-29 QTR56L - Jun 29, 11:10 UTCJun 29, 14:39 UTC3h 30m
2026-06-29 QTR36P - Jun 29, 05:20 UTCJun 29, 09:00 UTC3h 40m
2026-06-29 QTR41U - Jun 29, 02:30 UTCJun 29, 02:54 UTC25m
2026-06-28 QTR41U - Jun 28, 21:34 UTCJun 29, 01:10 UTC3h 35m
2026-06-28 QTR93C - Jun 28, 13:14 UTCJun 28, 18:49 UTC5h 35m
2026-06-28 QTR959 - Jun 28, 06:24 UTCJun 28, 09:50 UTC3h 25m
2026-06-28 QTR959 - Jun 28, 02:20 UTCJun 28, 02:39 UTC20m
2026-06-27 QTR958 - Jun 27, 23:50 UTCJun 28, 00:09 UTC20m
2026-06-27 QTR958 - Jun 27, 15:45 UTCJun 27, 23:19 UTC7h 35m
2026-06-27 QTR1007 DXB → DOH Jun 27, 08:05 UTCJun 27, 08:49 UTC45m

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

Mode-S 06A0FF frequently asked

What is Mode-S code 06A0FF?
06A0FF is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-ALK.
Where is Mode-S 06A0FF registered?
Mode-S code 06A0FF is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A0FF broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A0FF, octal 01520377, decimal 434,431.
What flights does 06A0FF operate?
Mode-S 06A0FF has broadcast 20 distinct callsigns, including QTR6R, QTR6B, QTR4T, QTR39C, QTR19W.