Apparatus

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sensors Mode-S transponder

06A149

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-APH · AIRBUS A-380-800

Hex
06A149
Octal
01520511
Decimal
434,505
Country
QA
Tail
A7-APH
Type
A388
Broadcasting now · callsign QTR003 · 31,025 ft
Flights observed
74
Distinct callsigns
16
Country
QA
Last broadcast
8d ago

Current position

06A149 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 06A149 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 16 distinct

Callsign Airline Flights Last seen
QTR837 - 8 2026-07-19
QTR835 Qatar Airways 8 2026-07-21
QTR003 - 8 2026-07-15
QTR834 Qatar Airways 7 2026-07-21
QTR65H Qatar Airways 7 2026-07-25
QTR54E Qatar Airways 7 2026-07-20
QTR836 - 5 2026-07-19
QTR004 - 5 2026-07-15
QTR63A Qatar Airways 3 2026-07-23
QTR57W Qatar Airways 3 2026-07-17
QTR38P Qatar Airways 3 2026-07-21
QTR36L Qatar Airways 3 2026-07-22
QTR29R Qatar Airways 3 2026-07-22
QTR91T - 2 2026-07-18
QTR29F - 1 2026-06-22
QTR1836 - 1 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 QTR65H DOH → MIA Jul 25, 15:20 UTCJul 25, 21:30 UTC6h 10m
2026-07-23 QTR63A AMS → DOH Jul 23, 08:05 UTCJul 23, 14:25 UTC6h 20m
2026-07-22 QTR36L DOH → AMS Jul 22, 23:10 UTCJul 23, 05:40 UTC6h 30m
2026-07-22 QTR29R CDG → DOH Jul 22, 10:20 UTCJul 22, 13:35 UTC3h 15m
2026-07-21 QTR38P DOH → MAN Jul 21, 22:45 UTCJul 22, 05:05 UTC6h 20m
2026-07-21 QTR835 BKK → DOH Jul 21, 13:20 UTCJul 21, 19:35 UTC6h 15m
2026-07-21 QTR834 DOH → BKK Jul 21, 00:00 UTCJul 21, 06:35 UTC6h 35m
2026-07-20 QTR65H - Jul 20, 15:05 UTCJul 20, 21:20 UTC6h 15m
2026-07-20 QTR54E DOH → CDG Jul 20, 06:15 UTCJul 20, 12:40 UTC6h 25m
2026-07-19 QTR837 - Jul 19, 21:15 UTCJul 20, 03:05 UTC5h 50m
2026-07-19 QTR836 - Jul 19, 01:05 UTCJul 19, 07:45 UTC6h 40m
2026-07-18 QTR91T - Jul 18, 08:20 UTCJul 18, 14:55 UTC6h 35m
2026-07-17 QTR57W BRU → DOH Jul 17, 23:00 UTCJul 18, 05:20 UTC6h 21m
2026-07-17 QTR91T - Jul 17, 08:00 UTCJul 17, 14:20 UTC6h 20m
2026-07-16 QTR57W BRU → DOH Jul 16, 22:35 UTCJul 17, 05:15 UTC6h 40m
2026-07-15 QTR004 - Jul 15, 16:40 UTCJul 15, 22:40 UTC6h 0m
2026-07-15 QTR003 - Jul 15, 08:50 UTCJul 15, 13:45 UTC4h 55m
2026-07-15 QTR003 - Jul 15, 07:05 UTCJul 15, 07:45 UTC40m
2026-07-14 QTR004 - Jul 14, 14:40 UTCJul 14, 20:55 UTC6h 15m
2026-07-14 QTR003 - Jul 14, 07:25 UTCJul 14, 12:10 UTC4h 45m
2026-07-14 QTR003 - Jul 14, 04:50 UTCJul 14, 05:25 UTC35m
2026-07-13 QTR65H - Jul 13, 16:05 UTCJul 13, 21:55 UTC5h 50m
2026-07-13 QTR54E - Jul 13, 08:35 UTCJul 13, 13:05 UTC4h 30m
2026-07-13 QTR54E - Jul 13, 06:05 UTCJul 13, 06:25 UTC20m
2026-07-12 QTR837 - Jul 12, 19:50 UTCJul 13, 01:40 UTC5h 50m
2026-07-12 QTR836 - Jul 12, 00:20 UTCJul 12, 07:10 UTC6h 50m
2026-07-11 QTR004 - Jul 11, 14:40 UTCJul 11, 20:55 UTC6h 15m
2026-07-11 QTR003 - Jul 11, 07:00 UTCJul 11, 11:40 UTC4h 40m
2026-07-11 QTR003 - Jul 11, 04:35 UTCJul 11, 06:55 UTC2h 20m
2026-07-10 QTR65H - Jul 10, 21:05 UTCJul 10, 21:40 UTC35m
2026-07-10 QTR65H - Jul 10, 15:50 UTCJul 10, 19:55 UTC4h 5m
2026-07-10 QTR54E - Jul 10, 08:00 UTCJul 10, 12:20 UTC4h 20m
2026-07-10 QTR54E - Jul 10, 05:35 UTCJul 10, 06:00 UTC25m
2026-07-09 QTR837 - Jul 9, 22:20 UTCJul 10, 01:45 UTC3h 25m
2026-07-09 QTR837 - Jul 9, 19:45 UTCJul 9, 20:05 UTC20m
2026-07-09 QTR836 - Jul 9, 00:30 UTCJul 9, 07:00 UTC6h 30m
2026-07-08 QTR004 - Jul 8, 15:00 UTCJul 8, 21:10 UTC6h 10m
2026-07-08 QTR003 DOH → LHR Jul 8, 05:05 UTCJul 8, 12:25 UTC7h 20m
2026-07-07 QTR65H DOH → MIA Jul 7, 20:25 UTCJul 7, 21:05 UTC40m
2026-07-07 QTR65H DOH → MIA Jul 7, 15:10 UTCJul 7, 19:20 UTC4h 10m
2026-07-07 QTR54E DOH → CDG Jul 7, 07:20 UTCJul 7, 11:50 UTC4h 30m
2026-07-07 QTR54E DOH → CDG Jul 7, 04:50 UTCJul 7, 05:05 UTC15m
2026-07-06 QTR29R CDG → DOH Jul 6, 07:40 UTCJul 6, 13:25 UTC5h 45m
2026-07-05 QTR38P DOH → MAN Jul 5, 22:15 UTCJul 6, 04:35 UTC6h 20m
2026-07-05 QTR29R CDG → DOH Jul 5, 07:40 UTCJul 5, 13:20 UTC5h 40m
2026-07-04 QTR38P DOH → MAN Jul 4, 22:25 UTCJul 5, 05:00 UTC6h 35m
2026-07-03 QTR837 - Jul 3, 19:45 UTCJul 4, 01:55 UTC6h 10m
2026-07-02 QTR836 - Jul 2, 23:55 UTCJul 3, 06:40 UTC6h 45m
2026-07-02 QTR835 - Jul 2, 13:30 UTCJul 2, 19:40 UTC6h 10m
2026-07-02 QTR834 - Jul 2, 00:30 UTCJul 2, 07:10 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-APH page for operator, model, and routing details .

Mode-S 06A149 frequently asked

What is Mode-S code 06A149?
06A149 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-APH.
Where is Mode-S 06A149 registered?
Mode-S code 06A149 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A149 broadcasting right now?
Yes. Mode-S 06A149 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A149, octal 01520511, decimal 434,505.
What flights does 06A149 operate?
Mode-S 06A149 has broadcast 16 distinct callsigns, including QTR837, QTR835, QTR003, QTR834, QTR65H.