Apparatus

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sensors Mode-S transponder

06A141

ICAO 24-bit transponder address · allocated to Qatar

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

Hex
06A141
Octal
01520501
Decimal
434,497
Country
QA
Tail
A7-BFH
Type
B77L
Broadcasting now · callsign QTR8941 · 30,000 ft
Flights observed
268
Distinct callsigns
20
Country
QA
Last broadcast
6h ago

Current position

06A141 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 06A141 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
QTR8142 - 12 2026-07-08
QTR8403 Qatar Airways 6 2026-05-13
QTR8402 Qatar Airways 6 2026-05-12
QTR8941 - 5 2026-06-21
QTR8082 Qatar Airways 5 2026-05-21
QTR40L - 5 2026-06-18
QTR8A Qatar Airways 4 2026-04-17
QTR8940 - 4 2026-07-17
QTR87J Qatar Airways 4 2026-06-19
QTR8465 - 4 2026-07-11
QTR8464 - 4 2026-07-11
QTR8406 - 4 2026-07-04
QTR8175 Qatar Airways 4 2026-04-21
QTR8152 Qatar Airways 4 2026-06-01
QTR8099 Qatar Airways 4 2026-04-30
QTR72U Qatar Airways 4 2026-07-03
QTR6C Qatar Airways 4 2026-04-15
QTR38T - 4 2026-05-14
QTR8960 Qatar Airways 3 2026-06-13
QTR8948 - 3 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 QTR8940 - Jul 17, 12:50 UTCJul 17, 16:59 UTC4h 10m
2026-07-17 QTR15R - Jul 17, 05:20 UTCJul 17, 08:25 UTC3h 5m
2026-07-16 QTR32E - Jul 16, 23:29 UTCJul 17, 02:54 UTC3h 25m
2026-07-16 QTR76G - Jul 16, 15:25 UTCJul 16, 21:05 UTC5h 40m
2026-07-16 QTR76G ORD → MXP Jul 16, 05:05 UTCJul 16, 13:20 UTC8h 15m
2026-07-15 QTR31T MXP → ORD Jul 15, 18:00 UTCJul 16, 02:45 UTC8h 45m
2026-07-15 QTR31T - Jul 15, 06:55 UTCJul 15, 13:00 UTC6h 5m
2026-07-14 QTR20X - Jul 14, 19:30 UTCJul 15, 02:05 UTC6h 34m
2026-07-14 QTR29G - Jul 14, 12:20 UTCJul 14, 16:15 UTC3h 55m
2026-07-14 QTR29G - Jul 14, 11:35 UTCJul 14, 12:15 UTC40m
2026-07-14 QTR29G - Jul 14, 08:55 UTCJul 14, 09:35 UTC40m
2026-07-14 QTR8939 - Jul 14, 03:40 UTCJul 14, 04:00 UTC20m
2026-07-13 QTR8939 - Jul 13, 22:00 UTCJul 14, 03:35 UTC5h 35m
2026-07-13 QTR8938 - Jul 13, 09:35 UTCJul 13, 15:35 UTC6h 0m
2026-07-13 QTR8680 - Jul 13, 00:35 UTCJul 13, 06:35 UTC6h 0m
2026-07-11 QTR8465 - Jul 11, 20:25 UTCJul 12, 02:05 UTC5h 40m
2026-07-11 QTR8465 - Jul 11, 18:40 UTCJul 11, 18:50 UTC10m
2026-07-11 QTR8464 - Jul 11, 07:50 UTCJul 11, 16:15 UTC8h 25m
2026-07-10 QTR8240 - Jul 10, 20:45 UTCJul 11, 02:40 UTC5h 55m
2026-07-10 QTR8240 - Jul 10, 16:30 UTCJul 10, 18:05 UTC1h 35m
2026-07-10 QTR91P - Jul 10, 08:45 UTCJul 10, 14:30 UTC5h 45m
2026-07-10 QTR8411 - Jul 10, 01:10 UTCJul 10, 06:45 UTC5h 35m
2026-07-09 QTR8411 - Jul 9, 23:25 UTCJul 9, 23:35 UTC10m
2026-07-09 QTR8410 - Jul 9, 20:00 UTCJul 9, 20:20 UTC20m
2026-07-09 QTR8410 - Jul 9, 12:10 UTCJul 9, 18:15 UTC6h 5m
2026-07-08 QTR8955 - Jul 8, 20:15 UTCJul 9, 10:00 UTC13h 45m
2026-07-08 QTR8142 - Jul 8, 10:30 UTCJul 8, 16:10 UTC5h 40m
2026-07-07 QTR8142 - Jul 7, 23:15 UTCJul 8, 07:25 UTC8h 10m
2026-07-07 QTR8142 - Jul 7, 19:00 UTCJul 7, 19:35 UTC35m
2026-07-07 QTR8142 - Jul 7, 16:35 UTCJul 7, 16:45 UTC10m
2026-07-07 QTR8142 - Jul 7, 08:40 UTCJul 7, 14:15 UTC5h 35m
2026-07-06 QTR8141 - Jul 6, 13:35 UTCJul 7, 05:50 UTC16h 15m
2026-07-06 QTR99R - Jul 6, 07:00 UTCJul 6, 11:05 UTC4h 5m
2026-07-05 QTR19M - Jul 5, 18:30 UTCJul 6, 00:20 UTC5h 50m
2026-07-05 QTR19M - Jul 5, 14:55 UTCJul 5, 15:40 UTC45m
2026-07-05 QTR72B - Jul 5, 05:50 UTCJul 5, 13:15 UTC7h 25m
2026-07-04 QTR8407 - Jul 4, 21:55 UTCJul 5, 04:25 UTC6h 30m
2026-07-04 QTR8407 - Jul 4, 20:30 UTCJul 4, 20:40 UTC10m
2026-07-04 QTR8406 - Jul 4, 16:45 UTCJul 4, 17:10 UTC25m
2026-07-04 QTR8406 - Jul 4, 09:25 UTCJul 4, 16:00 UTC6h 35m
2026-07-04 QTR8605 - Jul 4, 04:55 UTCJul 4, 07:40 UTC2h 45m
2026-07-03 QTR90A - Jul 3, 22:20 UTCJul 4, 01:15 UTC2h 55m
2026-07-03 QTR72U OSL → DOH Jul 3, 13:05 UTCJul 3, 19:05 UTC6h 0m
2026-07-03 QTR72U OSL → DOH Jul 3, 09:30 UTCJul 3, 11:00 UTC1h 30m
2026-07-03 QTR8209 GSP → DFW Jul 3, 02:00 UTCJul 3, 07:20 UTC5h 20m
2026-07-02 QTR8401 - Jul 2, 18:55 UTCJul 3, 00:15 UTC5h 20m
2026-07-02 QTR8401 - Jul 2, 16:45 UTCJul 2, 17:00 UTC15m
2026-07-02 QTR8400 - Jul 2, 13:35 UTCJul 2, 14:05 UTC30m
2026-07-02 QTR8400 - Jul 2, 06:15 UTCJul 2, 12:50 UTC6h 35m
2026-07-01 QTR8949 - Jul 1, 20:15 UTCJul 2, 03:40 UTC7h 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-BFH page for operator, model, and routing details .

Mode-S 06A141 frequently asked

What is Mode-S code 06A141?
06A141 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-BFH.
Where is Mode-S 06A141 registered?
Mode-S code 06A141 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A141 broadcasting right now?
Yes. Mode-S 06A141 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A141, octal 01520501, decimal 434,497.
What flights does 06A141 operate?
Mode-S 06A141 has broadcast 20 distinct callsigns, including QTR8142, QTR8403, QTR8402, QTR8941, QTR8082.