Apparatus

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sensors Mode-S transponder

06A159

ICAO 24-bit transponder address · allocated to Qatar

Currently assigned to A7-AJF · AIRBUS A-321neo

Hex
06A159
Octal
01520531
Decimal
434,521
Country
QA
Tail
A7-AJF
Type
A21N
No current signal · last broadcast Jun 29, 20:54 UTC
Flights observed
167
Distinct callsigns
18
Country
QA
Last broadcast
Jun 29, 20:54 UTC

Last known position

Most recent position reported by Mode-S 06A159.

Country allocation

The ICAO 24-bit address 06A159 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 18 distinct

Callsign Airline Flights Last seen
IGO32Y - 28 2026-06-28
IGO25H IndiGo Airlines 22 2026-06-27
IGO46V - 21 2026-06-23
IGO15H - 16 2026-06-13
IGO28F - 14 2026-06-14
IGO51C IndiGo Airlines 10 2026-06-15
IGO19M - 9 2026-06-25
IGO1321 IndiGo Airlines 9 2026-06-27
IGO1322 IndiGo Airlines 8 2026-06-27
IGO1316 IndiGo Airlines 8 2026-06-20
IGO41U IndiGo Airlines 6 2026-06-23
IGO1323 IndiGo Airlines 6 2026-06-15
IGO1313 IndiGo Airlines 3 2026-06-15
IGO67V IndiGo Airlines 2 2026-05-02
IGO1315 IndiGo Airlines 2 2026-06-20
QTR3169 - 1 2026-06-29
IGO53M IndiGo Airlines 1 2026-05-29
IGO1326 IndiGo Airlines 1 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-29 QTR3169 DEL → DIA Jun 29, 17:19 UTCJun 29, 20:54 UTC3h 35m
2026-06-28 IGO32Y - Jun 28, 06:20 UTCJun 28, 10:04 UTC3h 45m
2026-06-27 IGO1321 MAA → DOH Jun 27, 22:49 UTCJun 28, 02:39 UTC3h 50m
2026-06-27 IGO1322 DOH → MAA Jun 27, 16:59 UTCJun 27, 20:44 UTC3h 45m
2026-06-27 IGO25H DXB → BOM Jun 27, 11:20 UTCJun 27, 14:54 UTC3h 35m
2026-06-27 IGO32Y DOH → DEL Jun 27, 05:35 UTCJun 27, 09:29 UTC3h 55m
2026-06-26 IGO1321 MAA → DOH Jun 26, 22:49 UTCJun 27, 02:35 UTC3h 45m
2026-06-26 IGO1322 DOH → MAA Jun 26, 16:44 UTCJun 26, 20:24 UTC3h 40m
2026-06-26 IGO25H DXB → BOM Jun 26, 11:00 UTCJun 26, 14:44 UTC3h 45m
2026-06-26 IGO32Y DOH → DEL Jun 26, 05:30 UTCJun 26, 09:24 UTC3h 55m
2026-06-25 IGO1321 MAA → DOH Jun 25, 23:19 UTCJun 26, 03:15 UTC3h 55m
2026-06-25 IGO1322 DOH → MAA Jun 25, 17:34 UTCJun 25, 21:20 UTC3h 45m
2026-06-25 IGO19M - Jun 25, 05:09 UTCJun 25, 14:20 UTC9h 10m
2026-06-24 IGO1321 MAA → DOH Jun 24, 22:55 UTCJun 25, 02:49 UTC3h 55m
2026-06-24 IGO1322 DOH → MAA Jun 24, 16:54 UTCJun 24, 20:30 UTC3h 35m
2026-06-23 IGO41U HYD → DED Jun 23, 23:34 UTCJun 24, 02:34 UTC3h 0m
2026-06-23 IGO46V - Jun 23, 20:24 UTCJun 23, 21:24 UTC1h 0m
2026-06-23 IGO46V - Jun 23, 18:10 UTCJun 23, 19:00 UTC50m
2026-06-23 IGO25H DXB → BOM Jun 23, 11:14 UTCJun 23, 14:55 UTC3h 40m
2026-06-23 IGO32Y DOH → DEL Jun 23, 05:29 UTCJun 23, 09:24 UTC3h 55m
2026-06-22 IGO41U HYD → DED Jun 22, 23:05 UTCJun 23, 02:04 UTC3h 0m
2026-06-22 IGO46V - Jun 22, 18:04 UTCJun 22, 21:00 UTC2h 55m
2026-06-22 IGO1326 DOH → CNN Jun 22, 05:29 UTCJun 22, 14:19 UTC8h 50m
2026-06-20 IGO1316 DOH → HYD Jun 20, 18:04 UTCJun 21, 03:10 UTC9h 5m
2026-06-20 IGO1315 HYD → DOH Jun 20, 14:05 UTCJun 20, 14:19 UTC15m
2026-06-19 IGO19M - Jun 19, 23:19 UTCJun 20, 11:59 UTC12h 40m
2026-06-19 IGO46V - Jun 19, 20:24 UTCJun 19, 21:09 UTC45m
2026-06-19 IGO46V - Jun 19, 00:20 UTCJun 19, 21:09 UTC20h 50m
2026-06-18 IGO46V - Jun 18, 23:55 UTCJun 19, 21:09 UTC21h 14m
2026-06-18 IGO1316 DOH → HYD Jun 18, 07:25 UTCJun 19, 00:34 UTC17h 9m
2026-06-17 IGO1316 DOH → HYD Jun 17, 23:25 UTCJun 18, 21:00 UTC21h 35m
2026-06-17 IGO46V - Jun 17, 20:15 UTCJun 17, 21:00 UTC45m
2026-06-16 IGO46V - Jun 16, 23:15 UTCJun 17, 21:00 UTC21h 45m
2026-06-16 IGO46V - Jun 16, 20:15 UTCJun 16, 20:55 UTC40m
2026-06-16 IGO46V - Jun 16, 00:20 UTCJun 16, 20:55 UTC20h 36m
2026-06-15 IGO46V - Jun 15, 23:54 UTCJun 16, 20:55 UTC21h 1m
2026-06-15 IGO1313 HYD → DOH Jun 15, 20:20 UTCJun 16, 20:15 UTC23h 56m
2026-06-15 IGO1316 DOH → HYD Jun 15, 19:30 UTCJun 16, 00:24 UTC4h 55m
2026-06-15 IGO1323 COK → DOH Jun 15, 11:05 UTCJun 15, 11:15 UTC10m
2026-06-15 IGO51C BOM → DXB Jun 15, 09:10 UTCJun 15, 09:25 UTC15m
2026-06-14 IGO41U HYD → DED Jun 14, 23:10 UTCJun 14, 23:44 UTC35m
2026-06-14 IGO46V - Jun 14, 18:00 UTCJun 14, 20:55 UTC2h 55m
2026-06-14 IGO19M - Jun 14, 05:40 UTCJun 14, 12:05 UTC6h 25m
2026-06-14 IGO28F - Jun 14, 03:25 UTCJun 14, 03:35 UTC10m
2026-06-13 IGO28F - Jun 13, 23:45 UTCJun 14, 01:05 UTC1h 20m
2026-06-13 IGO15H - Jun 13, 18:10 UTCJun 13, 21:55 UTC3h 45m
2026-06-12 IGO28F - Jun 12, 23:15 UTCJun 13, 00:35 UTC1h 20m
2026-06-12 IGO15H - Jun 12, 18:40 UTCJun 12, 21:45 UTC3h 5m
2026-06-11 IGO1315 HYD → DOH Jun 11, 23:35 UTCJun 12, 14:15 UTC14h 41m
2026-06-11 IGO46V DOH → BOM Jun 11, 18:40 UTCJun 11, 21:40 UTC3h 0m

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

Mode-S 06A159 frequently asked

What is Mode-S code 06A159?
06A159 is an ICAO 24-bit transponder address. Allocated to Qatar. Assigned to A7-AJF.
Where is Mode-S 06A159 registered?
Mode-S code 06A159 is allocated to Qatar (QA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 06A159 broadcasting right now?
No active broadcast right now. Last signal was Jun 29, 20:54 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 06A159, octal 01520531, decimal 434,521.
What flights does 06A159 operate?
Mode-S 06A159 has broadcast 18 distinct callsigns, including IGO32Y, IGO25H, IGO46V, IGO15H, IGO28F.