Apparatus

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sensors Mode-S transponder

06A077

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-BAJ · BOEING 777-300ER

Hex
06A077
Octal
01520167
Decimal
434,295
Country
QA
Tail
A7-BAJ
Type
B77W
No current signal · last broadcast 1d ago
Flights observed
62
Distinct callsigns
20
Country
QA
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 06A077.

Country allocation

The ICAO 24-bit address 06A077 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
QTR840 Qatar Airways 6 2026-05-06
QTR829 Qatar Airways 6 2026-05-11
QTR828 Qatar Airways 6 2026-05-11
QTR55J Qatar Airways 4 2026-04-16
QTR25C Qatar Airways 4 2026-04-28
QTR403 Qatar Airways 3 2026-05-19
QTR27L Qatar Airways 3 2026-05-27
QTR22X Qatar Airways 3 2026-05-21
QTR18J Qatar Airways 3 2026-05-22
QTR90W Qatar Airways 2 2026-04-30
QTR841 Qatar Airways 2 2026-05-05
QTR82C - 2 2026-04-30
QTR818 Qatar Airways 2 2026-04-29
QTR815 Qatar Airways 2 2026-04-29
QTR7E Qatar Airways 2 2026-04-27
QTR22Y Qatar Airways 2 2026-04-17
QTR56U Qatar Airways 1 2026-05-26
QTR56L Qatar Airways 1 2026-05-29
QTR36P Qatar Airways 1 2026-05-29
QTR31L Qatar Airways 1 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 QTR56L DOH → PRG May 29, 14:25 UTCMay 29, 17:50 UTC3h 25m
2026-05-29 QTR36P DOH → BUD May 29, 07:40 UTCMay 29, 11:40 UTC4h 0m
2026-05-28 QTR1169 RUH → DOH May 28, 23:50 UTCMay 29, 00:25 UTC35m
2026-05-28 QTR1168 DOH → RUH May 28, 18:55 UTCMay 28, 19:15 UTC20m
2026-05-27 QTR27L BEY → DOH May 27, 13:05 UTCMay 27, 13:40 UTC35m
2026-05-27 QTR27L BEY → DOH May 27, 11:15 UTCMay 27, 11:50 UTC35m
2026-05-26 QTR56U LGG → DOH May 26, 17:04 UTCMay 26, 19:20 UTC2h 15m
2026-05-25 QTR1155 DMM → DOH May 25, 23:10 UTCMay 25, 23:40 UTC30m
2026-05-23 QTR1171 RUH → DOH May 23, 05:20 UTCMay 23, 09:50 UTC4h 30m
2026-05-22 QTR18J DOH → MAD May 22, 03:55 UTCMay 22, 04:35 UTC40m
2026-05-21 QTR22X DOH → CMB May 21, 21:15 UTCMay 21, 21:55 UTC40m
2026-05-21 QTR27L BEY → DOH May 21, 11:35 UTCMay 21, 13:30 UTC1h 55m
2026-05-19 QTR22X DOH → CMB May 19, 21:05 UTCMay 20, 04:15 UTC7h 10m
2026-05-19 QTR403 AMM → DOH May 19, 12:40 UTCMay 19, 13:15 UTC35m
2026-05-18 QTR1151 DMM → DOH May 18, 11:30 UTCMay 18, 12:05 UTC35m
2026-05-15 QTR18J DOH → MAD May 15, 21:40 UTCMay 16, 04:30 UTC6h 50m
2026-05-13 QTR31L VCE → DOH May 13, 17:10 UTCMay 14, 03:10 UTC10h 0m
2026-05-11 QTR829 BKK → DOH May 11, 12:15 UTCMay 11, 16:40 UTC4h 25m
2026-05-11 QTR828 DOH → BKK May 11, 02:40 UTCMay 11, 07:00 UTC4h 20m
2026-05-09 QTR18J DOH → MAD May 9, 03:50 UTCMay 9, 04:30 UTC40m
2026-05-08 QTR22X DOH → CMB May 8, 21:50 UTCMay 8, 22:35 UTC45m
2026-05-06 QTR840 DOH → HKT May 6, 00:40 UTCMay 6, 04:10 UTC3h 30m
2026-05-05 QTR841 HKT → DOH May 5, 02:45 UTCMay 5, 21:10 UTC18h 25m
2026-05-04 QTR840 DOH → HKT May 4, 18:05 UTCMay 5, 16:40 UTC22h 36m
2026-05-04 QTR840 DOH → HKT May 4, 16:55 UTCMay 5, 04:00 UTC11h 6m
2026-05-04 QTR840 DOH → HKT May 4, 03:49 UTCMay 5, 03:40 UTC23h 51m
2026-05-04 QTR840 DOH → HKT May 4, 00:10 UTCMay 4, 18:20 UTC18h 10m
2026-05-02 QTR841 HKT → DOH May 2, 04:00 UTCMay 2, 20:50 UTC16h 50m
2026-05-02 QTR840 DOH → HKT May 2, 00:15 UTCMay 2, 20:50 UTC20h 36m
2026-04-30 QTR90W AMS → DOH Apr 30, 22:05 UTCMay 1, 02:10 UTC4h 5m
2026-04-30 QTR82C - Apr 30, 13:20 UTCApr 30, 17:05 UTC3h 45m
2026-04-29 QTR815 HKG → DOH Apr 29, 19:55 UTCApr 30, 01:50 UTC5h 54m
2026-04-29 QTR815 HKG → DOH Apr 29, 17:50 UTCApr 29, 17:55 UTC5m
2026-04-29 QTR818 DOH → HKG Apr 29, 08:10 UTCApr 29, 08:40 UTC30m
2026-04-29 QTR818 DOH → HKG Apr 29, 01:30 UTCApr 29, 06:10 UTC4h 40m
2026-04-28 QTR25C SFO → DOH Apr 28, 06:15 UTCApr 28, 13:45 UTC7h 30m
2026-04-27 QTR7E MAD → BSL Apr 27, 17:05 UTCApr 28, 03:00 UTC9h 55m
2026-04-27 QTR403 AMM → DOH Apr 27, 11:30 UTCApr 27, 13:45 UTC2h 15m
2026-04-27 QTR25C SFO → DOH Apr 27, 06:40 UTCApr 27, 07:25 UTC45m
2026-04-26 QTR90W AMS → DOH Apr 26, 21:55 UTCApr 27, 02:25 UTC4h 30m
2026-04-26 QTR82C - Apr 26, 13:25 UTCApr 26, 17:05 UTC3h 40m
2026-04-25 QTR7E MAD → BSL Apr 25, 17:10 UTCApr 25, 17:40 UTC30m
2026-04-25 QTR403 AMM → DOH Apr 25, 11:15 UTCApr 25, 13:15 UTC2h 0m
2026-04-25 QTR25C SFO → DOH Apr 25, 05:50 UTCApr 25, 06:35 UTC45m
2026-04-23 QTR829 BKK → DOH Apr 23, 12:45 UTCApr 23, 19:15 UTC6h 29m
2026-04-22 QTR828 DOH → BKK Apr 22, 23:45 UTCApr 23, 05:35 UTC5h 50m
2026-04-22 QTR829 BKK → DOH Apr 22, 12:30 UTCApr 22, 19:05 UTC6h 35m
2026-04-21 QTR828 DOH → BKK Apr 21, 23:50 UTCApr 22, 05:45 UTC5h 55m
2026-04-21 QTR829 BKK → DOH Apr 21, 12:20 UTCApr 21, 18:50 UTC6h 30m
2026-04-20 QTR828 DOH → BKK Apr 20, 23:35 UTCApr 21, 05:35 UTC6h 0m

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

Mode-S 06A077 frequently asked

What is Mode-S code 06A077?
06A077 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-BAJ.
Where is Mode-S 06A077 registered?
Mode-S code 06A077 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A077 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A077, octal 01520167, decimal 434,295.
What flights does 06A077 operate?
Mode-S 06A077 has broadcast 20 distinct callsigns, including QTR840, QTR829, QTR828, QTR55J, QTR25C.