Apparatus

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sensors Mode-S transponder

06A121

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-ANE · AIRBUS A-350-1000

Hex
06A121
Octal
01520441
Decimal
434,465
Country
QA
Tail
A7-ANE
Type
A35K
No current signal · last broadcast 3h ago
Flights observed
157
Distinct callsigns
20
Country
QA
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 06A121.

Country allocation

The ICAO 24-bit address 06A121 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
QTR20V - 16 2026-07-11
QTR93V - 8 2026-07-09
QTR20R Qatar Airways 7 2026-05-28
QTR98P Qatar Airways 6 2026-05-03
QTR87Q - 6 2026-07-12
QTR773 - 5 2026-04-14
QTR93W - 4 2026-07-04
QTR858 - 4 2026-07-02
QTR779 - 4 2026-07-06
QTR778 - 4 2026-07-10
QTR774 Qatar Airways 4 2026-04-15
QTR572 - 4 2026-06-21
QTR40X - 4 2026-05-18
QTR22B - 4 2026-07-14
QTR18F Qatar Airways 4 2026-06-08
QTR15Q Qatar Airways 4 2026-05-09
QTR780 - 3 2026-07-07
QTR70E - 3 2026-07-05
QTR706 Qatar Airways 3 2026-06-06
QTR65B - 3 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QTR22B - Jul 14, 02:35 UTCJul 14, 06:00 UTC3h 25m
2026-07-12 QTR7E - Jul 12, 23:25 UTCJul 13, 00:01 UTC35m
2026-07-12 QTR87Q - Jul 12, 01:50 UTCJul 12, 15:15 UTC13h 25m
2026-07-11 QTR20V - Jul 11, 05:45 UTCJul 11, 19:35 UTC13h 50m
2026-07-10 QTR22L - Jul 10, 22:05 UTCJul 11, 01:00 UTC2h 55m
2026-07-10 QTR61G - Jul 10, 16:45 UTCJul 10, 19:20 UTC2h 35m
2026-07-10 QTR778 - Jul 10, 00:20 UTCJul 10, 14:20 UTC14h 0m
2026-07-09 QTR93V - Jul 9, 08:30 UTCJul 9, 21:10 UTC12h 40m
2026-07-09 QTR93V - Jul 9, 06:30 UTCJul 9, 07:00 UTC30m
2026-07-08 QTR4K - Jul 8, 19:45 UTCJul 8, 20:20 UTC35m
2026-07-08 QTR4B - Jul 8, 17:25 UTCJul 8, 17:50 UTC25m
2026-07-07 QTR780 - Jul 7, 23:45 UTCJul 8, 13:00 UTC13h 15m
2026-07-06 QTR779 - Jul 6, 23:10 UTCJul 7, 13:40 UTC14h 30m
2026-07-06 QTR22B DFW → DOH Jul 6, 00:00 UTCJul 6, 13:55 UTC13h 55m
2026-07-05 QTR70E - Jul 5, 05:35 UTCJul 5, 21:10 UTC15h 35m
2026-07-04 QTR65B - Jul 4, 23:15 UTCJul 5, 02:05 UTC2h 50m
2026-07-04 QTR93W - Jul 4, 18:00 UTCJul 4, 20:55 UTC2h 55m
2026-07-04 QTR87Q ORD → DOH Jul 4, 01:10 UTCJul 4, 13:50 UTC12h 40m
2026-07-03 QTR20V - Jul 3, 07:30 UTCJul 3, 20:10 UTC12h 40m
2026-07-03 QTR20V - Jul 3, 05:35 UTCJul 3, 06:05 UTC30m
2026-07-02 QTR859 - Jul 2, 16:40 UTCJul 3, 02:30 UTC9h 50m
2026-07-02 QTR858 - Jul 2, 07:10 UTCJul 2, 07:45 UTC35m
2026-07-01 QTR858 - Jul 1, 23:10 UTCJul 2, 00:05 UTC55m
2026-06-30 QTR35P BUD → DOH Jun 30, 23:40 UTCJul 1, 14:40 UTC15h 0m
2026-06-30 QTR90B CPT → DOH Jun 30, 06:50 UTCJun 30, 20:50 UTC14h 0m
2026-06-30 QTR90B CPT → DOH Jun 30, 05:05 UTCJun 30, 05:40 UTC35m
2026-06-29 QTR65B - Jun 29, 23:14 UTCJun 30, 02:05 UTC2h 51m
2026-06-29 QTR93W - Jun 29, 18:10 UTCJun 29, 21:05 UTC2h 55m
2026-06-29 QTR780 GRU → DOH Jun 29, 00:20 UTCJun 29, 13:59 UTC13h 40m
2026-06-28 QTR779 DOH → GRU Jun 28, 11:09 UTCJun 28, 12:44 UTC1h 35m
2026-06-27 QTR779 DOH → GRU Jun 27, 22:55 UTCJun 27, 23:14 UTC20m
2026-06-27 QTR66X - Jun 27, 04:00 UTCJun 27, 17:44 UTC13h 45m
2026-06-25 QTR3V DOH → MIA Jun 25, 23:05 UTCJun 26, 13:55 UTC14h 50m
2026-06-25 QTR51U - Jun 25, 04:45 UTCJun 25, 19:05 UTC14h 20m
2026-06-23 QTR7E MAD → BSL Jun 23, 23:14 UTCJun 24, 14:50 UTC15h 35m
2026-06-22 QTR756 - Jun 22, 23:45 UTCJun 23, 13:19 UTC13h 35m
2026-06-22 QTR16A - Jun 22, 05:15 UTCJun 22, 19:40 UTC14h 25m
2026-06-21 QTR32N DOH → SJJ Jun 21, 22:34 UTCJun 22, 02:04 UTC3h 30m
2026-06-21 QTR572 - Jun 21, 16:59 UTCJun 21, 20:45 UTC3h 45m
2026-06-20 QTR22B DFW → DOH Jun 20, 23:59 UTCJun 21, 14:24 UTC14h 25m
2026-06-20 QTR70E - Jun 20, 04:59 UTCJun 20, 19:49 UTC14h 50m
2026-06-19 QTR22B - Jun 19, 00:00 UTCJun 19, 14:39 UTC14h 39m
2026-06-18 QTR70E - Jun 18, 05:55 UTCJun 18, 20:50 UTC14h 55m
2026-06-15 QTR87Q ORD → DOH Jun 15, 01:04 UTCJun 15, 14:00 UTC12h 55m
2026-06-14 QTR20V - Jun 14, 07:05 UTCJun 14, 21:25 UTC14h 20m
2026-06-13 QTR65B - Jun 13, 23:00 UTCJun 13, 23:40 UTC40m
2026-06-13 QTR93W TRV → DOH Jun 13, 18:05 UTCJun 13, 20:50 UTC2h 45m
2026-06-13 QTR778 - Jun 13, 15:00 UTCJun 13, 15:25 UTC25m
2026-06-13 QTR778 - Jun 13, 01:55 UTCJun 13, 13:00 UTC11h 4m
2026-06-12 QTR93V DOH → MIA Jun 12, 08:10 UTCJun 12, 21:00 UTC12h 50m

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

Mode-S 06A121 frequently asked

What is Mode-S code 06A121?
06A121 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-ANE.
Where is Mode-S 06A121 registered?
Mode-S code 06A121 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A121 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A121, octal 01520441, decimal 434,465.
What flights does 06A121 operate?
Mode-S 06A121 has broadcast 20 distinct callsigns, including QTR20V, QTR93V, QTR20R, QTR98P, QTR87Q.