Apparatus

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sensors Mode-S transponder

06A1E7

ICAO 24-bit transponder address · allocated to Qatar

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

Hex
06A1E7
Octal
01520747
Decimal
434,663
Country
QA
Tail
A7-BFJ
Type
B77L
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
291
Distinct callsigns
20
Country
QA
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S 06A1E7.

Country allocation

The ICAO 24-bit address 06A1E7 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
QTR8157 - 14 2026-06-29
QTR8158 - 10 2026-07-01
QTR8160 - 8 2026-07-11
QTR8500 - 5 2026-07-12
QTR8432 Qatar Airways 5 2026-05-23
QTR8421 Qatar Airways 5 2026-07-21
QTR8420 Qatar Airways 5 2026-07-21
QTR8411 Qatar Airways 5 2026-05-31
QTR8406 - 5 2026-06-18
QTR8101 Qatar Airways 5 2026-06-10
QTR3L - 5 2026-07-04
QTR8984 - 4 2026-07-14
QTR8969 Qatar Airways 4 2026-05-17
QTR8968 Qatar Airways 4 2026-05-16
QTR8963 Qatar Airways 4 2026-04-22
QTR8962 Qatar Airways 4 2026-05-25
QTR8802 - 4 2026-07-25
QTR8431 Qatar Airways 4 2026-07-20
QTR8410 Qatar Airways 4 2026-05-31
QTR8407 - 4 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QTR8455 HKG → DOH Jul 26, 17:25 UTCJul 26, 21:25 UTC4h 0m
2026-07-26 QTR8455 HKG → DOH Jul 26, 15:40 UTCJul 26, 15:45 UTC5m
2026-07-26 QTR8803 AKL → HKG Jul 26, 13:05 UTCJul 26, 13:15 UTC10m
2026-07-26 QTR8803 AKL → HKG Jul 26, 01:45 UTCJul 26, 12:05 UTC10h 21m
2026-07-25 QTR8802 HKG → AKL Jul 25, 11:05 UTCJul 25, 21:10 UTC10h 5m
2026-07-25 QTR8802 - Jul 25, 07:20 UTCJul 25, 07:50 UTC30m
2026-07-25 QTR8802 - Jul 25, 01:55 UTCJul 25, 05:35 UTC3h 40m
2026-07-24 QTR8802 - Jul 24, 23:45 UTCJul 25, 00:35 UTC50m
2026-07-24 QTR8218 DFW → FLL Jul 24, 15:15 UTCJul 24, 22:05 UTC6h 50m
2026-07-24 QTR8218 DFW → FLL Jul 24, 09:20 UTCJul 24, 11:20 UTC2h 0m
2026-07-24 QTR8217 DFW → JAX Jul 24, 02:05 UTCJul 24, 06:40 UTC4h 35m
2026-07-23 QTR8217 DFW → JAX Jul 23, 23:35 UTCJul 23, 23:50 UTC15m
2026-07-23 QTR8288 - Jul 23, 13:00 UTCJul 23, 17:10 UTC4h 10m
2026-07-23 QTR8287 - Jul 23, 09:30 UTCJul 23, 11:20 UTC1h 50m
2026-07-22 QTR8256 STN → BRU Jul 22, 15:20 UTCJul 23, 07:20 UTC16h 0m
2026-07-22 QTR8256 - Jul 22, 11:40 UTCJul 22, 13:15 UTC1h 35m
2026-07-21 QTR8421 HKG → DOH Jul 21, 17:25 UTCJul 22, 05:25 UTC12h 0m
2026-07-21 QTR8421 HKG → DOH Jul 21, 15:40 UTCJul 21, 15:50 UTC10m
2026-07-21 QTR8420 DOH → MCT Jul 21, 06:45 UTCJul 21, 12:55 UTC6h 10m
2026-07-21 QTR8420 DOH → MCT Jul 21, 02:50 UTCJul 21, 03:40 UTC50m
2026-07-20 QTR8431 GRU → REC Jul 20, 16:25 UTCJul 20, 22:10 UTC5h 45m
2026-07-20 QTR8431 GRU → REC Jul 20, 14:40 UTCJul 20, 14:50 UTC10m
2026-07-20 QTR8430 DOH → HKG Jul 20, 03:30 UTCJul 20, 11:40 UTC8h 10m
2026-07-19 QTR8284 - Jul 19, 19:25 UTCJul 20, 00:20 UTC4h 55m
2026-07-19 QTR8284 - Jul 19, 17:00 UTCJul 19, 17:35 UTC35m
2026-07-19 QTR8431 GRU → REC Jul 19, 00:15 UTCJul 19, 04:00 UTC3h 45m
2026-07-18 QTR8431 GRU → REC Jul 18, 22:35 UTCJul 18, 22:45 UTC10m
2026-07-18 QTR8430 DOH → HKG Jul 18, 19:55 UTCJul 18, 20:25 UTC30m
2026-07-18 QTR8430 DOH → HKG Jul 18, 14:00 UTCJul 18, 18:10 UTC4h 10m
2026-07-18 QTR9Q - Jul 18, 09:35 UTCJul 18, 09:50 UTC15m
2026-07-18 QTR30V - Jul 18, 01:20 UTCJul 18, 07:35 UTC6h 16m
2026-07-17 QTR8423 HKG → DOH Jul 17, 16:04 UTCJul 17, 21:15 UTC5h 10m
2026-07-17 QTR8423 HKG → DOH Jul 17, 14:20 UTCJul 17, 14:30 UTC10m
2026-07-17 QTR8422 GRU → SLZ Jul 17, 11:25 UTCJul 17, 12:00 UTC35m
2026-07-17 QTR8422 GRU → SLZ Jul 17, 03:39 UTCJul 17, 09:35 UTC5h 55m
2026-07-16 QTR8148 - Jul 16, 11:20 UTCJul 17, 01:09 UTC13h 50m
2026-07-16 QTR8147 - Jul 16, 05:10 UTCJul 16, 07:45 UTC2h 35m
2026-07-15 QTR8147 - Jul 15, 14:45 UTCJul 16, 01:55 UTC11h 10m
2026-07-15 QTR8147 - Jul 15, 07:05 UTCJul 15, 12:55 UTC5h 50m
2026-07-14 QTR8985 - Jul 14, 17:35 UTCJul 15, 02:50 UTC9h 14m
2026-07-14 QTR8984 - Jul 14, 14:40 UTCJul 14, 15:00 UTC20m
2026-07-14 QTR8984 - Jul 14, 06:45 UTCJul 14, 13:55 UTC7h 10m
2026-07-13 QTR8282 - Jul 13, 20:30 UTCJul 14, 00:00 UTC3h 30m
2026-07-13 QTR8282 - Jul 13, 17:00 UTCJul 13, 18:05 UTC1h 5m
2026-07-13 QTR45A - Jul 13, 08:40 UTCJul 13, 13:25 UTC4h 45m
2026-07-13 QTR45A - Jul 13, 06:10 UTCJul 13, 06:30 UTC20m
2026-07-12 QTR8415 - Jul 12, 19:55 UTCJul 13, 03:25 UTC7h 30m
2026-07-12 QTR8500 - Jul 12, 17:25 UTCJul 12, 17:55 UTC30m
2026-07-12 QTR8500 - Jul 12, 09:45 UTCJul 12, 15:40 UTC5h 55m
2026-07-12 QTR8732 - Jul 12, 01:15 UTCJul 12, 01:35 UTC20m

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

Mode-S 06A1E7 frequently asked

What is Mode-S code 06A1E7?
06A1E7 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-BFJ.
Where is Mode-S 06A1E7 registered?
Mode-S code 06A1E7 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A1E7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A1E7, octal 01520747, decimal 434,663.
What flights does 06A1E7 operate?
Mode-S 06A1E7 has broadcast 20 distinct callsigns, including QTR8157, QTR8158, QTR8160, QTR8500, QTR8432.