Apparatus

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sensors Mode-S transponder

801861

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-NHJ · AIRBUS A-321neo

Hex
801861
Octal
40014141
Decimal
8,394,849
Country
IN
Tail
VT-NHJ
Type
A21N
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
584
Distinct callsigns
20
Country
IN
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 801861.

Country allocation

The ICAO 24-bit address 801861 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
IGO6382 - 20 2026-06-19
IGO5264 - 18 2026-06-19
IGO5234 - 18 2026-06-19
IGO5268 - 14 2026-06-19
IGO6393 - 12 2026-06-19
IGO5233 - 12 2026-06-18
IGO6542 - 10 2026-06-29
IGO6774 IndiGo Airlines 8 2026-06-29
IGO5135 - 8 2026-07-12
IGO5226 - 7 2026-07-12
IGO445F - 7 2026-06-21
IGO323E - 7 2026-07-12
IGO993H - 6 2026-07-11
IGO739P - 6 2026-07-11
IGO563 IndiGo Airlines 6 2026-06-01
IGO533 - 6 2026-07-12
IGO5066 IndiGo Airlines 6 2026-07-25
IGO457 - 6 2026-06-29
IGO429 IndiGo Airlines 6 2026-07-21
IGO316 - 6 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 IGO1202 BAH → BOM Jul 26, 21:10 UTCJul 26, 22:15 UTC1h 5m
2026-07-26 IGO1201 BOM → BAH Jul 26, 19:30 UTCJul 26, 19:55 UTC25m
2026-07-26 IGO1201 BOM → BAH Jul 26, 15:35 UTCJul 26, 18:35 UTC3h 0m
2026-07-26 IGO6951 GOP → BOM Jul 26, 13:45 UTCJul 26, 14:00 UTC15m
2026-07-26 IGO411Y - Jul 26, 09:10 UTCJul 26, 09:30 UTC20m
2026-07-26 IGO2304 BBI → BOM Jul 26, 07:10 UTCJul 26, 07:25 UTC15m
2026-07-26 IGO2304 BBI → BOM Jul 26, 05:50 UTCJul 26, 06:10 UTC20m
2026-07-26 HGO5091 - Jul 26, 02:45 UTCJul 26, 04:20 UTC1h 35m
2026-07-25 IGO5066 GAU → BOM Jul 25, 18:25 UTCJul 25, 18:45 UTC20m
2026-07-25 IGO5066 GAU → BOM Jul 25, 16:05 UTCJul 25, 17:05 UTC1h 0m
2026-07-25 IGO767K - Jul 25, 13:35 UTCJul 25, 14:40 UTC1h 5m
2026-07-25 IGO767K - Jul 25, 12:00 UTCJul 25, 12:10 UTC10m
2026-07-25 IGO6938 IXD → BOM Jul 25, 10:35 UTCJul 25, 10:50 UTC15m
2026-07-25 IGO6937 BOM → IXD Jul 25, 06:25 UTCJul 25, 06:40 UTC15m
2026-07-24 IGO082 DMM → BOM Jul 24, 23:05 UTCJul 25, 03:05 UTC4h 0m
2026-07-24 IGO085 HYD → DMM Jul 24, 14:55 UTCJul 24, 20:50 UTC5h 55m
2026-07-24 IGO622P BLR → HYD Jul 24, 11:20 UTCJul 24, 11:30 UTC10m
2026-07-24 IGO6747 BOM → MAA Jul 24, 06:25 UTCJul 24, 10:05 UTC3h 40m
2026-07-24 IGO6747 BOM → MAA Jul 24, 05:15 UTCJul 24, 06:20 UTC1h 5m
2026-07-24 IGO6746 MAA → BOM Jul 24, 02:45 UTCJul 24, 04:15 UTC1h 30m
2026-07-23 IGO76AP - Jul 23, 17:20 UTCJul 23, 18:05 UTC45m
2026-07-23 IGO225F IXC → SXR Jul 23, 07:40 UTCJul 23, 07:50 UTC10m
2026-07-23 IGO6050 DEL → COK Jul 23, 03:20 UTCJul 23, 03:45 UTC25m
2026-07-23 IGO6402 UDR → DEL Jul 23, 01:20 UTCJul 23, 01:50 UTC30m
2026-07-22 IGO242 COK → PNQ Jul 22, 21:45 UTCJul 22, 23:25 UTC1h 40m
2026-07-22 IGO6177 BLR → MAA Jul 22, 15:00 UTCJul 22, 15:10 UTC10m
2026-07-22 IGO6329 DEL → GOI Jul 22, 14:00 UTCJul 22, 14:10 UTC10m
2026-07-22 IGO622P BLR → HYD Jul 22, 11:20 UTCJul 22, 11:50 UTC30m
2026-07-22 IGO994P - Jul 22, 01:55 UTCJul 22, 02:40 UTC45m
2026-07-21 IGO355H - Jul 21, 15:15 UTCJul 21, 17:40 UTC2h 25m
2026-07-21 IGO429 IXC → BLR Jul 21, 13:45 UTCJul 21, 13:55 UTC10m
2026-07-21 IGO429 IXC → BLR Jul 21, 11:30 UTCJul 21, 12:15 UTC45m
2026-07-21 IGO108 HYD → IXC Jul 21, 03:50 UTCJul 21, 10:05 UTC6h 15m
2026-07-20 IGO391 PNQ → BLR Jul 20, 22:55 UTCJul 21, 02:20 UTC3h 24m
2026-07-20 IGO5355 CJB → BLR Jul 20, 16:05 UTCJul 20, 16:30 UTC25m
2026-07-20 IGO6875 BLR → CJB Jul 20, 14:30 UTCJul 20, 14:50 UTC20m
2026-07-20 IGO863 AMD → BLR Jul 20, 11:30 UTCJul 20, 13:15 UTC1h 45m
2026-07-20 IGO6595 BLR → AMD Jul 20, 09:20 UTCJul 20, 09:40 UTC20m
2026-07-20 IGO6595 BLR → AMD Jul 20, 08:30 UTCJul 20, 08:40 UTC10m
2026-07-20 IGO325 LKO → BLR Jul 20, 06:55 UTCJul 20, 07:05 UTC10m
2026-07-20 IGO15RY - Jul 20, 01:50 UTCJul 20, 02:05 UTC15m
2026-07-19 IGO5355 - Jul 19, 16:15 UTCJul 19, 16:35 UTC20m
2026-07-19 IGO6875 BLR → CJB Jul 19, 14:35 UTCJul 19, 14:55 UTC20m
2026-07-19 IGO863 - Jul 19, 13:05 UTCJul 19, 13:20 UTC15m
2026-07-19 IGO6595 - Jul 19, 08:40 UTCJul 19, 12:15 UTC3h 35m
2026-07-19 IGO325 - Jul 19, 06:55 UTCJul 19, 07:05 UTC10m
2026-07-19 IGO15RY - Jul 19, 01:50 UTCJul 19, 02:00 UTC10m
2026-07-18 IGO5355 - Jul 18, 16:10 UTCJul 18, 16:35 UTC25m
2026-07-18 IGO6875 BLR → CJB Jul 18, 14:35 UTCJul 18, 15:00 UTC25m
2026-07-18 IGO863 - Jul 18, 11:40 UTCJul 18, 13:20 UTC1h 40m

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

Mode-S 801861 frequently asked

What is Mode-S code 801861?
801861 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-NHJ.
Where is Mode-S 801861 registered?
Mode-S code 801861 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801861 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801861, octal 40014141, decimal 8,394,849.
What flights does 801861 operate?
Mode-S 801861 has broadcast 20 distinct callsigns, including IGO6382, IGO5264, IGO5234, IGO5268, IGO6393.