Apparatus

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sensors Mode-S transponder

06A081

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-BFC · BOEING 777-200LR

Hex
06A081
Octal
01520201
Decimal
434,305
Country
QA
Tail
A7-BFC
Type
B77L
No current signal · last broadcast 1h ago
Flights observed
271
Distinct callsigns
20
Country
QA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 06A081.

Country allocation

The ICAO 24-bit address 06A081 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
QTR8406 Qatar Airways 10 2026-05-28
QTR8270 Qatar Airways 8 2026-06-20
QTR8429 Qatar Airways 7 2026-06-13
QTR8428 Qatar Airways 7 2026-06-12
QTR8157 - 7 2026-07-07
QTR38T - 6 2026-06-27
QTR8969 Qatar Airways 5 2026-05-24
QTR8407 Qatar Airways 5 2026-05-29
QTR8158 - 5 2026-07-08
QTR8960 Qatar Airways 4 2026-05-10
QTR8949 Qatar Airways 4 2026-05-24
QTR8453 Qatar Airways 4 2026-05-30
QTR8214 - 4 2026-06-26
QTR8160 - 4 2026-07-04
QTR8147 Qatar Airways 4 2026-06-04
QTR6C Qatar Airways 4 2026-04-17
QTR21R - 4 2026-04-14
QTR8984 Qatar Airways 3 2026-05-07
QTR8975 - 3 2026-04-13
QTR8948 Qatar Airways 3 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QTR40L - Jul 14, 00:25 UTCJul 14, 06:15 UTC5h 50m
2026-07-13 QTR8025 - Jul 13, 13:45 UTCJul 13, 21:40 UTC7h 55m
2026-07-12 QTR8025 - Jul 12, 23:15 UTCJul 13, 21:40 UTC22h 25m
2026-07-12 QTR8174 - Jul 12, 19:25 UTCJul 12, 19:40 UTC15m
2026-07-11 QTR8174 - Jul 11, 23:50 UTCJul 12, 17:20 UTC17h 30m
2026-07-11 QTR25Q - Jul 11, 12:45 UTCJul 11, 18:40 UTC5h 55m
2026-07-11 QTR40L - Jul 11, 02:35 UTCJul 11, 08:50 UTC6h 15m
2026-07-10 QTR8295 - Jul 10, 19:30 UTCJul 10, 22:55 UTC3h 25m
2026-07-10 QTR8294 - Jul 10, 15:35 UTCJul 10, 16:00 UTC25m
2026-07-10 QTR47X - Jul 10, 05:30 UTCJul 10, 05:55 UTC25m
2026-07-10 QTR47X - Jul 10, 03:15 UTCJul 10, 04:05 UTC50m
2026-07-09 QTR89L - Jul 9, 20:25 UTCJul 9, 23:05 UTC2h 40m
2026-07-09 QTR8489 - Jul 9, 11:05 UTCJul 9, 17:00 UTC5h 55m
2026-07-09 QTR8489 BUD → OSL Jul 9, 06:30 UTCJul 9, 08:50 UTC2h 20m
2026-07-08 QTR8488 - Jul 8, 23:55 UTCJul 9, 04:40 UTC4h 45m
2026-07-08 QTR8158 - Jul 8, 10:00 UTCJul 8, 15:35 UTC5h 35m
2026-07-07 QTR8158 - Jul 7, 12:20 UTCJul 8, 07:15 UTC18h 55m
2026-07-07 QTR8157 - Jul 7, 10:20 UTCJul 8, 07:15 UTC20h 55m
2026-07-07 QTR8157 - Jul 7, 09:50 UTCJul 8, 07:15 UTC21h 25m
2026-07-06 QTR8157 - Jul 6, 19:40 UTCJul 7, 07:05 UTC11h 25m
2026-07-06 QTR8157 - Jul 6, 11:25 UTCJul 6, 17:25 UTC6h 0m
2026-07-06 QTR76G DOH → MAN Jul 6, 02:00 UTCJul 6, 07:05 UTC5h 5m
2026-07-05 QTR76G DOH → MAN Jul 5, 15:25 UTCJul 5, 23:20 UTC7h 55m
2026-07-05 QTR8154 - Jul 5, 00:50 UTCJul 5, 13:00 UTC12h 10m
2026-07-04 QTR8160 AMS → DOH Jul 4, 10:30 UTCJul 4, 16:05 UTC5h 35m
2026-07-03 QTR8160 - Jul 3, 12:20 UTCJul 4, 08:10 UTC19h 50m
2026-07-03 QTR8160 - Jul 3, 10:20 UTCJul 4, 08:10 UTC21h 50m
2026-07-03 QTR8160 - Jul 3, 10:10 UTCJul 4, 08:10 UTC22h 0m
2026-07-02 QTR8159 - Jul 2, 15:35 UTCJul 3, 07:45 UTC16h 10m
2026-07-02 QTR8625 MAA → DOH Jul 2, 10:55 UTCJul 2, 11:50 UTC55m
2026-07-02 QTR8092 - Jul 2, 01:40 UTCJul 2, 09:35 UTC7h 55m
2026-07-01 QTR8236 FRA → DOH Jul 1, 18:00 UTCJul 1, 23:30 UTC5h 30m
2026-07-01 QTR8236 - Jul 1, 14:30 UTCJul 1, 15:10 UTC40m
2026-07-01 QTR8235 - Jul 1, 06:55 UTCJul 1, 12:45 UTC5h 50m
2026-06-30 QTR8945 - Jun 30, 22:05 UTCJul 1, 04:45 UTC6h 40m
2026-06-30 QTR8944 - Jun 30, 18:15 UTCJun 30, 18:25 UTC10m
2026-06-30 QTR8944 - Jun 30, 10:35 UTCJun 30, 16:15 UTC5h 40m
2026-06-30 QTR8363 DAC → DOH Jun 30, 04:00 UTCJun 30, 08:35 UTC4h 35m
2026-06-29 QTR8362 - Jun 29, 20:49 UTCJun 30, 01:35 UTC4h 46m
2026-06-29 QTR8413 - Jun 29, 10:44 UTCJun 29, 17:05 UTC6h 20m
2026-06-29 QTR8413 - Jun 29, 09:29 UTCJun 29, 09:40 UTC10m
2026-06-29 QTR8412 - Jun 29, 06:50 UTCJun 29, 07:25 UTC35m
2026-06-28 QTR8412 - Jun 28, 22:59 UTCJun 29, 05:04 UTC6h 5m
2026-06-28 QTR93M - Jun 28, 20:14 UTCJun 28, 20:45 UTC30m
2026-06-28 QTR93M - Jun 28, 16:09 UTCJun 28, 18:59 UTC2h 50m
2026-06-28 QTR38Q DOH → BUD Jun 28, 08:29 UTCJun 28, 13:25 UTC4h 55m
2026-06-27 QTR8431 - Jun 27, 22:35 UTCJun 28, 05:09 UTC6h 35m
2026-06-27 QTR8431 - Jun 27, 21:50 UTCJun 27, 22:04 UTC15m
2026-06-27 QTR8430 - Jun 27, 19:09 UTCJun 27, 19:34 UTC25m
2026-06-27 QTR8430 - Jun 27, 11:44 UTCJun 27, 18:24 UTC6h 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-BFC page for operator, model, and routing details .

Mode-S 06A081 frequently asked

What is Mode-S code 06A081?
06A081 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-BFC.
Where is Mode-S 06A081 registered?
Mode-S code 06A081 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A081 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 06A081, octal 01520201, decimal 434,305.
What flights does 06A081 operate?
Mode-S 06A081 has broadcast 20 distinct callsigns, including QTR8406, QTR8270, QTR8429, QTR8428, QTR8157.