Apparatus

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sensors Mode-S transponder

06A374

ICAO 24-bit transponder address · allocated to Qatar

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

Hex
06A374
Octal
01521564
Decimal
435,060
Country
QA
Tail
A7-BOC
Type
B77W
No current signal · last broadcast 1h ago
Flights observed
144
Distinct callsigns
20
Country
QA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 06A374.

Country allocation

The ICAO 24-bit address 06A374 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
QTR817 Qatar Airways 17 2026-07-26
QTR815 Qatar Airways 15 2026-07-23
QTR818 Qatar Airways 14 2026-07-26
QTR816 Qatar Airways 14 2026-07-23
QTR675 Qatar Airways 8 2026-07-20
QTR3M Qatar Airways 7 2026-07-24
QTR7A Qatar Airways 6 2026-07-24
QTR6B Qatar Airways 6 2026-07-25
QTR5V Qatar Airways 6 2026-07-25
QTR36Y Qatar Airways 5 2026-07-20
QTR23Y Qatar Airways 5 2026-07-24
QTR20K Qatar Airways 5 2026-07-24
QTR1171 - 5 2026-07-14
QTR8G - 3 2026-07-14
QTR2H Qatar Airways 3 2026-07-25
QTR1173 - 3 2026-07-06
QTR1083 - 3 2026-07-14
QTR59N - 2 2026-07-22
QTR23V - 2 2026-06-18
QTR22C Qatar Airways 2 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QTR817 HKG → DOH Jul 26, 14:00 UTCJul 26, 19:00 UTC5h 0m
2026-07-26 QTR817 HKG → DOH Jul 26, 12:10 UTCJul 26, 12:20 UTC10m
2026-07-26 QTR818 DOH → HKG Jul 26, 00:25 UTCJul 26, 05:10 UTC4h 45m
2026-07-25 QTR5V DOH → IAH Jul 25, 10:15 UTCJul 25, 12:55 UTC2h 40m
2026-07-25 QTR6B DOH → JFK Jul 25, 05:15 UTCJul 25, 05:50 UTC35m
2026-07-25 QTR2H DOH → TBS Jul 25, 02:05 UTCJul 25, 02:45 UTC40m
2026-07-24 QTR22C DOH → NAG Jul 24, 22:35 UTCJul 24, 23:20 UTC45m
2026-07-24 QTR20K DOH → STN Jul 24, 19:20 UTCJul 24, 20:00 UTC40m
2026-07-24 QTR3M TBS → DOH Jul 24, 16:35 UTCJul 24, 17:20 UTC45m
2026-07-24 QTR7A CAI → DOH Jul 24, 11:55 UTCJul 24, 12:25 UTC30m
2026-07-24 QTR23Y DOH → CDG Jul 24, 07:25 UTCJul 24, 09:15 UTC1h 50m
2026-07-23 QTR815 HKG → DOH Jul 23, 19:35 UTCJul 24, 01:20 UTC5h 45m
2026-07-23 QTR815 HKG → DOH Jul 23, 17:50 UTCJul 23, 18:00 UTC10m
2026-07-23 QTR816 DOH → HKG Jul 23, 10:20 UTCJul 23, 12:05 UTC1h 45m
2026-07-23 QTR816 DOH → HKG Jul 23, 07:05 UTCJul 23, 09:05 UTC2h 0m
2026-07-23 QTR1167 RUH → DOH Jul 23, 03:00 UTCJul 23, 03:45 UTC45m
2026-07-22 QTR59N - Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-22 QTR2H - Jul 22, 02:40 UTCJul 22, 02:50 UTC10m
2026-07-20 QTR36Y DOH → IAD Jul 20, 23:25 UTCJul 21, 00:10 UTC44m
2026-07-20 QTR675 MLE → DOH Jul 20, 19:20 UTCJul 20, 20:10 UTC50m
2026-07-19 QTR36Y - Jul 19, 23:10 UTCJul 20, 20:10 UTC21h 0m
2026-07-19 QTR20K - Jul 19, 19:35 UTCJul 19, 20:10 UTC35m
2026-07-19 QTR3M TBS → DOH Jul 19, 16:40 UTCJul 19, 17:30 UTC50m
2026-07-19 QTR7A CAI → DOH Jul 19, 12:10 UTCJul 19, 14:50 UTC2h 40m
2026-07-18 QTR815 HKG → DOH Jul 18, 19:25 UTCJul 19, 09:15 UTC13h 50m
2026-07-18 QTR815 HKG → DOH Jul 18, 17:45 UTCJul 18, 17:55 UTC10m
2026-07-18 QTR816 - Jul 18, 11:05 UTCJul 18, 11:50 UTC45m
2026-07-17 QTR816 - Jul 17, 15:05 UTCJul 18, 11:50 UTC20h 46m
2026-07-17 QTR817 - Jul 17, 13:45 UTCJul 18, 11:50 UTC22h 6m
2026-07-17 QTR817 - Jul 17, 12:00 UTCJul 17, 12:15 UTC15m
2026-07-17 QTR818 DOH → HKG Jul 17, 06:45 UTCJul 17, 07:14 UTC30m
2026-07-16 QTR818 DOH → HKG Jul 16, 23:15 UTCJul 17, 04:54 UTC5h 40m
2026-07-16 QTR817 - Jul 16, 14:10 UTCJul 16, 16:09 UTC2h 0m
2026-07-16 QTR817 - Jul 16, 12:25 UTCJul 16, 12:34 UTC10m
2026-07-15 QTR818 - Jul 15, 23:20 UTCJul 16, 04:55 UTC5h 35m
2026-07-15 QTR817 HKG → DOH Jul 15, 13:05 UTCJul 15, 20:30 UTC7h 25m
2026-07-15 QTR818 - Jul 15, 06:50 UTCJul 15, 07:35 UTC45m
2026-07-14 QTR818 - Jul 14, 23:20 UTCJul 15, 05:00 UTC5h 40m
2026-07-14 QTR1083 - Jul 14, 19:50 UTCJul 14, 20:05 UTC15m
2026-07-14 QTR8G - Jul 14, 13:35 UTCJul 14, 14:15 UTC40m
2026-07-14 QTR1171 - Jul 14, 09:50 UTCJul 14, 10:30 UTC40m
2026-07-13 QTR675 - Jul 13, 19:05 UTCJul 13, 20:00 UTC55m
2026-07-12 QTR36Y - Jul 12, 23:50 UTCJul 13, 00:40 UTC50m
2026-07-12 QTR675 - Jul 12, 19:10 UTCJul 12, 20:05 UTC55m
2026-07-11 QTR36Y - Jul 11, 23:20 UTCJul 12, 20:05 UTC20h 45m
2026-07-11 QTR1083 - Jul 11, 16:40 UTCJul 11, 17:25 UTC45m
2026-07-11 QTR8G - Jul 11, 13:35 UTCJul 11, 14:05 UTC30m
2026-07-11 QTR1171 - Jul 11, 09:00 UTCJul 11, 09:45 UTC45m
2026-07-11 QTR1170 - Jul 11, 06:01 UTCJul 11, 06:20 UTC20m
2026-07-10 QTR815 - Jul 10, 19:40 UTCJul 10, 21:40 UTC2h 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-BOC page for operator, model, and routing details .

Mode-S 06A374 frequently asked

What is Mode-S code 06A374?
06A374 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-BOC.
Where is Mode-S 06A374 registered?
Mode-S code 06A374 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A374 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 06A374, octal 01521564, decimal 435,060.
What flights does 06A374 operate?
Mode-S 06A374 has broadcast 20 distinct callsigns, including QTR817, QTR815, QTR818, QTR816, QTR675.