Apparatus

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sensors Mode-S transponder

801663

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-IQU · AIRBUS A-320neo

Hex
801663
Octal
40013143
Decimal
8,394,339
Country
IN
Tail
VT-IQU
Type
A20N
No current signal · last broadcast 6h ago
Flights observed
232
Distinct callsigns
20
Country
IN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 801663.

Country allocation

The ICAO 24-bit address 801663 falls within the block assigned to India (IN) by ICAO Annex 10, Volume III. Every aircraft registered in India 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
IGO1038 IndiGo Airlines 4 2026-05-28
IGO018 IndiGo Airlines 4 2026-05-03
IGO931P - 3 2026-04-18
IGO619 - 3 2026-04-13
IGO2449 IndiGo Airlines 3 2026-05-17
IGO1601 IndiGo Airlines 3 2026-05-04
IGO155J - 3 2026-05-20
IGO1068 IndiGo Airlines 3 2026-05-08
IGO1067 IndiGo Airlines 3 2026-05-08
IGO1037 IndiGo Airlines 3 2026-05-28
IGO964L IndiGo Airlines 2 2026-05-27
IGO964 IndiGo Airlines 2 2026-05-11
IGO793Y IndiGo Airlines 2 2026-05-03
IGO6619 IndiGo Airlines 2 2026-05-01
IGO6276 IndiGo Airlines 2 2026-04-18
IGO605V - 2 2026-04-24
IGO6004 IndiGo Airlines 2 2026-05-13
IGO582E IndiGo Airlines 2 2026-05-23
IGO567V - 2 2026-05-26
IGO536 IndiGo Airlines 2 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 IGO737 HBX → BOM May 30, 14:00 UTCMay 30, 14:20 UTC20m
2026-05-30 IGO736 - May 30, 12:05 UTCMay 30, 12:15 UTC10m
2026-05-30 IGO5338 AGR → BOM May 30, 08:50 UTCMay 30, 10:45 UTC1h 55m
2026-05-30 IGO5316 - May 30, 06:00 UTCMay 30, 07:45 UTC1h 45m
2026-05-30 IGO512W - May 30, 04:20 UTCMay 30, 04:45 UTC25m
2026-05-29 IGO6279 BLR → GOI May 29, 16:05 UTCMay 29, 16:15 UTC10m
2026-05-29 IGO414Y - May 29, 12:15 UTCMay 29, 12:25 UTC10m
2026-05-29 IGO5302 LKO → BOM May 29, 10:45 UTCMay 29, 11:00 UTC15m
2026-05-29 IGO5302 LKO → BOM May 29, 09:20 UTCMay 29, 09:35 UTC15m
2026-05-29 IGO2442 BOM → LKO May 29, 06:25 UTCMay 29, 08:00 UTC1h 35m
2026-05-29 IGO433E - May 29, 04:45 UTCMay 29, 05:05 UTC20m
2026-05-29 IGO433E - May 29, 03:55 UTCMay 29, 04:05 UTC10m
2026-05-28 IGO1038 KUL → BLR May 28, 17:40 UTCMay 28, 18:00 UTC20m
2026-05-28 IGO1038 KUL → BLR May 28, 14:20 UTCMay 28, 14:35 UTC15m
2026-05-28 IGO1037 BLR → KUL May 28, 08:45 UTCMay 28, 12:50 UTC4h 5m
2026-05-28 IGO475 DEL → DIB May 28, 03:15 UTCMay 28, 03:45 UTC30m
2026-05-28 IGO697L BLR → CJB May 28, 01:50 UTCMay 28, 02:10 UTC20m
2026-05-27 IGO1038 KUL → BLR May 27, 17:15 UTCMay 27, 18:00 UTC45m
2026-05-27 IGO1038 KUL → BLR May 27, 13:55 UTCMay 27, 14:15 UTC20m
2026-05-27 IGO1037 BLR → KUL May 27, 12:10 UTCMay 27, 12:40 UTC30m
2026-05-27 IGO1037 BLR → KUL May 27, 08:40 UTCMay 27, 09:00 UTC20m
2026-05-27 IGO964L JDH → BLR May 27, 05:49 UTCMay 27, 06:04 UTC15m
2026-05-27 IGO964L JDH → BLR May 27, 03:54 UTCMay 27, 04:04 UTC10m
2026-05-27 IGO6032 BLR → JDH May 27, 02:49 UTCMay 27, 02:59 UTC10m
2026-05-26 IGO567V - May 26, 19:34 UTCMay 26, 19:50 UTC15m
2026-05-26 IGO411 BLR → BBI May 26, 15:20 UTCMay 26, 18:55 UTC3h 35m
2026-05-26 IGO102W - May 26, 12:24 UTCMay 26, 12:45 UTC20m
2026-05-26 IGO102W - May 26, 11:00 UTCMay 26, 11:39 UTC40m
2026-05-26 IGO6507 BLR → HSR May 26, 08:19 UTCMay 26, 09:49 UTC1h 30m
2026-05-26 IGO6161 IXE → BLR May 26, 06:20 UTCMay 26, 06:49 UTC30m
2026-05-25 IGO27H - May 25, 20:04 UTCMay 25, 21:19 UTC1h 15m
2026-05-25 IGO501E - May 25, 16:50 UTCMay 25, 17:15 UTC25m
2026-05-25 IGO501E - May 25, 15:00 UTCMay 25, 15:25 UTC25m
2026-05-25 IGO116H - May 25, 13:45 UTCMay 25, 14:05 UTC20m
2026-05-25 IGO116H - May 25, 12:10 UTCMay 25, 12:25 UTC15m
2026-05-25 IGO302 PNQ → BLR May 25, 10:10 UTCMay 25, 10:40 UTC30m
2026-05-25 IGO467 CJB → HYD May 25, 03:55 UTCMay 25, 04:20 UTC25m
2026-05-24 IGO423 DED → HYD May 24, 14:15 UTCMay 25, 02:55 UTC12h 40m
2026-05-24 IGO403 PNQ → DED May 24, 11:10 UTCMay 24, 13:05 UTC1h 55m
2026-05-24 IGO402 DED → PNQ May 24, 09:55 UTCMay 24, 10:05 UTC10m
2026-05-24 IGO402 DED → PNQ May 24, 08:20 UTCMay 24, 09:00 UTC40m
2026-05-23 IGO582E PAT → HYD May 23, 13:10 UTCMay 24, 07:00 UTC17h 51m
2026-05-23 IGO582E PAT → HYD May 23, 12:15 UTCMay 24, 07:00 UTC18h 46m
2026-05-23 IGO2519 - May 23, 10:10 UTCMay 23, 10:25 UTC15m
2026-05-23 IGO2519 - May 23, 08:00 UTCMay 23, 08:40 UTC40m
2026-05-23 IGO291C NAG → DEL May 23, 04:25 UTCMay 23, 06:45 UTC2h 20m
2026-05-23 IGO650C - May 23, 01:55 UTCMay 23, 03:05 UTC1h 9m
2026-05-22 IGO6093 PNQ → BDQ May 22, 16:05 UTCMay 22, 16:15 UTC10m
2026-05-22 IGO5027 - May 22, 14:10 UTCMay 22, 14:35 UTC25m
2026-05-22 IGO2730 - May 22, 12:35 UTCMay 22, 13:00 UTC25m

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 VT-IQU page for operator, model, and routing details .

Mode-S 801663 frequently asked

What is Mode-S code 801663?
801663 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IQU.
Where is Mode-S 801663 registered?
Mode-S code 801663 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801663 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801663, octal 40013143, decimal 8,394,339.
What flights does 801663 operate?
Mode-S 801663 has broadcast 20 distinct callsigns, including IGO1038, IGO018, IGO931P, IGO619, IGO2449.