Apparatus

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sensors Mode-S transponder

801661

ICAO 24-bit transponder address · allocated to India

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

Hex
801661
Octal
40013141
Decimal
8,394,337
Country
IN
Tail
VT-IQV
Type
A20N
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
523
Distinct callsigns
20
Country
IN
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S 801661.

Country allocation

The ICAO 24-bit address 801661 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
IGO5055 - 10 2026-07-04
IGO5041 IndiGo Airlines 10 2026-07-04
IGO2449 - 10 2026-07-07
IGO1037 - 10 2026-06-26
IGO802 IndiGo Airlines 9 2026-06-25
IGO154H - 9 2026-07-04
IGO552 IndiGo Airlines 8 2026-06-25
IGO5273 - 8 2026-06-25
IGO434C - 8 2026-06-25
IGO273 - 8 2026-06-25
IGO1602 IndiGo Airlines 8 2026-06-22
IGO1601 - 8 2026-06-22
IGO648 IndiGo Airlines 7 2026-06-25
IGO6479 - 7 2026-07-04
IGO141P - 7 2026-07-06
IGO1038 IndiGo Airlines 7 2026-06-26
IGO605V - 6 2026-07-03
IGO5121 - 6 2026-07-07
IGO26P - 6 2026-07-23
IGO207W IndiGo Airlines 6 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 IGO1409 AUH → BLR Jul 26, 20:50 UTCJul 26, 21:25 UTC35m
2026-07-26 IGO39Y - Jul 26, 18:35 UTCJul 26, 19:00 UTC25m
2026-07-26 IGO6162 BLR → IXE Jul 26, 13:20 UTCJul 26, 13:40 UTC20m
2026-07-26 IGO509 RDP → BLR Jul 26, 10:50 UTCJul 26, 11:00 UTC10m
2026-07-26 IGO509 RDP → BLR Jul 26, 09:00 UTCJul 26, 10:00 UTC1h 0m
2026-07-26 IGO162P - Jul 26, 07:20 UTCJul 26, 08:00 UTC40m
2026-07-26 IGO162P - Jul 26, 05:55 UTCJul 26, 07:15 UTC1h 21m
2026-07-26 IGO275Y - Jul 26, 04:25 UTCJul 26, 04:40 UTC15m
2026-07-25 IGO632 BOM → AMD Jul 25, 22:35 UTCJul 25, 22:50 UTC15m
2026-07-25 IGO1186 CMB → BOM Jul 25, 17:15 UTCJul 25, 19:00 UTC1h 45m
2026-07-24 IGO1032 KUL → MAA Jul 24, 22:05 UTCJul 24, 22:45 UTC40m
2026-07-24 IGO6764 GAU → MAA Jul 24, 13:10 UTCJul 24, 20:30 UTC7h 20m
2026-07-24 IGO6344 ATQ → CCU Jul 24, 11:00 UTCJul 24, 11:50 UTC50m
2026-07-24 IGO6344 ATQ → CCU Jul 24, 07:30 UTCJul 24, 09:25 UTC1h 55m
2026-07-24 IGO201 CCU → ATQ Jul 24, 04:30 UTCJul 24, 06:15 UTC1h 45m
2026-07-24 IGO201 CCU → ATQ Jul 24, 02:50 UTCJul 24, 03:35 UTC45m
2026-07-24 IGO445P - Jul 24, 00:40 UTCJul 24, 01:25 UTC45m
2026-07-23 IGO93VE IDR → CCU Jul 23, 12:45 UTCJul 23, 17:10 UTC4h 25m
2026-07-23 IGO512E IXE → BLR Jul 23, 11:05 UTCJul 23, 11:40 UTC35m
2026-07-23 IGO5306 BLR → IXE Jul 23, 09:15 UTCJul 23, 09:35 UTC20m
2026-07-23 IGO26P - Jul 23, 06:25 UTCJul 23, 07:05 UTC40m
2026-07-23 IGO1167 BLR → CMB Jul 23, 03:45 UTCJul 23, 04:35 UTC50m
2026-07-23 IGO1248 SIN → BLR Jul 23, 01:35 UTCJul 23, 01:55 UTC20m
2026-07-22 IGO1248 SIN → BLR Jul 22, 22:00 UTCJul 22, 22:45 UTC45m
2026-07-22 IGO1247 BLR → SIN Jul 22, 16:00 UTCJul 22, 20:25 UTC4h 25m
2026-07-22 IGO388 - Jul 22, 13:10 UTCJul 22, 13:35 UTC25m
2026-07-22 IGO17E BLR → DXB Jul 22, 02:40 UTCJul 22, 04:00 UTC1h 20m
2026-07-21 IGO501E - Jul 21, 16:25 UTCJul 21, 16:45 UTC20m
2026-07-21 IGO116H - Jul 21, 11:20 UTCJul 21, 15:35 UTC4h 15m
2026-07-20 IGO1605 BLR → DPS Jul 20, 19:30 UTCJul 21, 06:20 UTC10h 49m
2026-07-20 IGO303C BBI → BLR Jul 20, 16:15 UTCJul 20, 16:30 UTC15m
2026-07-20 IGO303C BBI → BLR Jul 20, 15:05 UTCJul 20, 15:40 UTC35m
2026-07-20 IGO6914 - Jul 20, 12:50 UTCJul 20, 13:50 UTC1h 0m
2026-07-20 IGO6339 CCU → DMU Jul 20, 09:05 UTCJul 20, 09:55 UTC50m
2026-07-20 IGO433 AJL → CCU Jul 20, 06:50 UTCJul 20, 07:45 UTC55m
2026-07-20 IGO146 LKO → GAU Jul 20, 03:00 UTCJul 20, 03:45 UTC45m
2026-07-20 IGO146 LKO → GAU Jul 20, 00:20 UTCJul 20, 00:55 UTC35m
2026-07-19 IGO2037 DIB → DEL Jul 19, 12:25 UTCJul 19, 12:45 UTC20m
2026-07-19 IGO2243 - Jul 19, 10:15 UTCJul 19, 10:55 UTC40m
2026-07-19 IGO5251 - Jul 19, 07:15 UTCJul 19, 07:25 UTC10m
2026-07-19 IGO75EH - Jul 19, 05:05 UTCJul 19, 05:20 UTC15m
2026-07-19 IGO6128 DEL → PNQ Jul 19, 02:05 UTCJul 19, 02:15 UTC10m
2026-07-18 IGO1510 - Jul 18, 05:20 UTCJul 18, 23:35 UTC18h 15m
2026-07-18 IGO1509 - Jul 18, 01:00 UTCJul 18, 03:55 UTC2h 56m
2026-07-17 IGO6187 - Jul 17, 19:15 UTCJul 17, 19:25 UTC10m
2026-07-17 IGO6186 - Jul 17, 15:49 UTCJul 17, 17:35 UTC1h 45m
2026-07-17 IGO5126 - Jul 17, 13:10 UTCJul 17, 14:30 UTC1h 20m
2026-07-17 IGO5155 RDP → BOM Jul 17, 11:10 UTCJul 17, 11:25 UTC15m
2026-07-17 IGO5155 RDP → BOM Jul 17, 09:20 UTCJul 17, 09:50 UTC30m
2026-07-17 IGO5125 AMD → BOM Jul 17, 06:29 UTCJul 17, 08:25 UTC1h 55m

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

Mode-S 801661 frequently asked

What is Mode-S code 801661?
801661 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IQV.
Where is Mode-S 801661 registered?
Mode-S code 801661 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801661 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 801661, octal 40013141, decimal 8,394,337.
What flights does 801661 operate?
Mode-S 801661 has broadcast 20 distinct callsigns, including IGO5055, IGO5041, IGO2449, IGO1037, IGO802.