sensors Mode-S transponder

06A2B1

ICAO 24-bit transponder address · allocated to Qatar

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

Hex
06A2B1
Octal
01521261
Decimal
434,865
Country
QA
Tail
A7-BEM
Type
B77W
No current signal · last broadcast 3h ago
Flights observed
167
Distinct callsigns
20
Country
QA
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 06A2B1.

Country allocation

The ICAO 24-bit address 06A2B1 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
QTR871 Qatar Airways 8 2026-05-27
QTR93X Qatar Airways 4 2026-05-06
QTR90C Qatar Airways 4 2026-06-08
QTR870 Qatar Airways 4 2026-05-27
QTR839 Qatar Airways 4 2026-07-09
QTR838 - 4 2026-07-08
QTR827 Qatar Airways 4 2026-05-02
QTR826 Qatar Airways 4 2026-05-02
QTR809 - 4 2026-07-04
QTR807 - 4 2026-07-02
QTR806 - 4 2026-07-02
QTR36A Qatar Airways 4 2026-06-09
QTR9W - 3 2026-07-14
QTR933 Qatar Airways 3 2026-05-17
QTR892 Qatar Airways 3 2026-04-28
QTR874 - 3 2026-04-13
QTR837 - 3 2026-06-26
QTR836 - 3 2026-06-25
QTR808 - 3 2026-07-03
QTR65B Qatar Airways 3 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QTR9W - Jul 14, 15:00 UTCJul 14, 15:30 UTC30m
2026-07-14 QTR64V - Jul 14, 00:20 UTCJul 14, 11:00 UTC10h 40m
2026-07-13 QTR27L - Jul 13, 11:00 UTCJul 13, 13:35 UTC2h 35m
2026-07-13 QTR33E - Jul 13, 06:35 UTCJul 13, 08:55 UTC2h 20m
2026-07-12 QTR16M - Jul 12, 12:20 UTCJul 13, 02:25 UTC14h 5m
2026-07-11 QTR898 - Jul 11, 21:15 UTCJul 12, 07:15 UTC10h 0m
2026-07-11 QTR17E - Jul 11, 13:55 UTCJul 11, 14:25 UTC30m
2026-07-11 QTR17E - Jul 11, 02:10 UTCJul 11, 12:20 UTC10h 10m
2026-07-10 QTR20R - Jul 10, 07:50 UTCJul 10, 19:10 UTC11h 20m
2026-07-10 QTR20R - Jul 10, 05:50 UTCJul 10, 06:15 UTC25m
2026-07-09 QTR32N - Jul 9, 22:50 UTCJul 10, 02:15 UTC3h 25m
2026-07-09 QTR572 - Jul 9, 17:10 UTCJul 9, 20:50 UTC3h 40m
2026-07-09 QTR839 BKK → DOH Jul 9, 03:30 UTCJul 9, 09:20 UTC5h 50m
2026-07-08 QTR838 - Jul 8, 16:50 UTCJul 8, 23:00 UTC6h 10m
2026-07-08 QTR65R - Jul 8, 01:10 UTCJul 8, 13:50 UTC12h 40m
2026-07-07 QTR18F - Jul 7, 05:50 UTCJul 7, 19:20 UTC13h 30m
2026-07-07 QTR42M - Jul 7, 02:30 UTCJul 7, 03:00 UTC30m
2026-07-06 QTR42M - Jul 6, 21:15 UTCJul 7, 01:15 UTC4h 0m
2026-07-06 QTR037 - Jul 6, 12:10 UTCJul 6, 18:30 UTC6h 20m
2026-07-05 QTR9W PER → DOH Jul 5, 15:00 UTCJul 6, 01:45 UTC10h 45m
2026-07-05 QTR64V - Jul 5, 00:20 UTCJul 5, 10:35 UTC10h 15m
2026-07-04 QTR809 - Jul 4, 08:55 UTCJul 4, 19:35 UTC10h 40m
2026-07-03 QTR808 - Jul 3, 18:15 UTCJul 4, 04:00 UTC9h 45m
2026-07-03 QTR1249 - Jul 3, 10:05 UTCJul 3, 16:05 UTC6h 0m
2026-07-02 QTR807 NRT → DOH Jul 2, 13:25 UTCJul 3, 00:00 UTC10h 35m
2026-07-02 QTR806 - Jul 2, 00:10 UTCJul 2, 10:05 UTC9h 55m
2026-07-01 QTR809 - Jul 1, 08:55 UTCJul 1, 19:35 UTC10h 40m
2026-06-30 QTR808 DOH → NRT Jun 30, 17:55 UTCJul 1, 03:50 UTC9h 55m
2026-06-30 QTR27L - Jun 30, 10:50 UTCJun 30, 13:50 UTC3h 0m
2026-06-30 QTR7J DOH → FRA Jun 30, 06:00 UTCJun 30, 08:20 UTC2h 20m
2026-06-29 QTR1A DOH → BEY Jun 29, 18:25 UTCJun 30, 00:55 UTC6h 30m
2026-06-29 QTR5Y - Jun 29, 06:24 UTCJun 29, 13:34 UTC7h 10m
2026-06-28 QTR30J - Jun 28, 15:24 UTCJun 29, 03:20 UTC11h 55m
2026-06-27 QTR72P DOH → DFW Jun 27, 23:14 UTCJun 28, 12:29 UTC13h 15m
2026-06-27 QTR846 - Jun 27, 06:44 UTCJun 27, 20:55 UTC14h 10m
2026-06-26 QTR837 - Jun 26, 19:39 UTCJun 27, 01:39 UTC6h 0m
2026-06-25 QTR836 - Jun 25, 23:55 UTCJun 26, 06:15 UTC6h 20m
2026-06-25 QTR1169 - Jun 25, 20:34 UTCJun 25, 21:05 UTC30m
2026-06-25 QTR1168 - Jun 25, 16:50 UTCJun 25, 17:09 UTC20m
2026-06-24 QTR1V LHR → ISU Jun 24, 21:19 UTCJun 25, 03:34 UTC6h 15m
2026-06-24 QTR33W DOH → LHR Jun 24, 12:25 UTCJun 24, 18:55 UTC6h 30m
2026-06-24 QTR1151 DMM → DOH Jun 24, 08:14 UTCJun 24, 08:39 UTC25m
2026-06-24 QTR1150 DOH → DMM Jun 24, 05:40 UTCJun 24, 06:10 UTC30m
2026-06-23 QTR1396 - Jun 23, 14:25 UTCJun 23, 21:14 UTC6h 50m
2026-06-23 QTR46M - Jun 23, 04:50 UTCJun 23, 11:35 UTC6h 45m
2026-06-22 QTR9W PER → DOH Jun 22, 14:55 UTCJun 23, 01:25 UTC10h 30m
2026-06-21 QTR64V - Jun 21, 23:59 UTCJun 22, 10:49 UTC10h 50m
2026-06-21 VOZ001 - Jun 21, 05:10 UTCJun 21, 15:54 UTC10h 45m
2026-06-19 VOZ002 - Jun 19, 22:19 UTCJun 20, 20:40 UTC22h 20m
2026-06-19 QTR8M - Jun 19, 22:14 UTCJun 20, 17:29 UTC19h 15m

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

Mode-S 06A2B1 frequently asked

What is Mode-S code 06A2B1?
06A2B1 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-BEM.
Where is Mode-S 06A2B1 registered?
Mode-S code 06A2B1 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A2B1 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 06A2B1, octal 01521261, decimal 434,865.
What flights does 06A2B1 operate?
Mode-S 06A2B1 has broadcast 20 distinct callsigns, including QTR871, QTR93X, QTR90C, QTR870, QTR839.