Apparatus

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sensors Mode-S transponder

801823

ICAO 24-bit transponder address · allocated to India

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

Hex
801823
Octal
40014043
Decimal
8,394,787
Country
IN
Tail
VT-NCY
Type
A21N
No current signal · last broadcast Jul 26, 17:00 UTC
Flights observed
614
Distinct callsigns
20
Country
IN
Last broadcast
Jul 26, 17:00 UTC

Last known position

Most recent position reported by Mode-S 801823.

Country allocation

The ICAO 24-bit address 801823 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
IGO1060 IndiGo Airlines 12 2026-07-22
IGO121V - 11 2026-07-08
IGO1054 IndiGo Airlines 11 2026-05-15
IGO5031 IndiGo Airlines 10 2026-07-25
IGO426L - 10 2026-07-07
IGO5047 IndiGo Airlines 9 2026-07-25
IGO1052 IndiGo Airlines 9 2026-05-16
IGO850 IndiGo Airlines 8 2026-07-25
IGO354M - 8 2026-07-07
IGO29YP - 8 2026-07-09
IGO19K - 8 2026-07-21
IGO1340 IndiGo Airlines 8 2026-07-21
IGO1339 IndiGo Airlines 8 2026-07-20
IGO47H IndiGo Airlines 7 2026-07-21
IGO1603 IndiGo Airlines 7 2026-07-23
IGO1063 IndiGo Airlines 7 2026-05-16
IGO1059 IndiGo Airlines 7 2026-04-19
IGO863V - 6 2026-07-08
IGO764V - 6 2026-07-10
IGO405K - 6 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 IGO5149 MAA → BOM Jul 26, 16:25 UTCJul 26, 17:00 UTC35m
2026-07-26 IGO947 GOX → CCU Jul 26, 11:55 UTCJul 26, 15:45 UTC3h 50m
2026-07-26 IGO939 CJB → HYD Jul 26, 09:10 UTCJul 26, 10:05 UTC55m
2026-07-26 IGO940 HYD → AYJ Jul 26, 03:55 UTCJul 26, 04:30 UTC35m
2026-07-25 IGO74AR - Jul 25, 23:35 UTCJul 26, 02:00 UTC2h 25m
2026-07-25 IGO5047 BOM → BLR Jul 25, 14:10 UTCJul 25, 14:45 UTC35m
2026-07-25 IGO5047 BOM → BLR Jul 25, 13:25 UTCJul 25, 13:35 UTC10m
2026-07-25 IGO5031 BLR → BOM Jul 25, 11:45 UTCJul 25, 12:10 UTC25m
2026-07-25 IGO5031 BLR → BOM Jul 25, 10:50 UTCJul 25, 11:00 UTC10m
2026-07-25 IGO850 DEL → BLR Jul 25, 09:25 UTCJul 25, 09:35 UTC10m
2026-07-25 IGO850 DEL → BLR Jul 25, 07:15 UTCJul 25, 07:50 UTC35m
2026-07-25 IGO355 BOM → DEL Jul 25, 04:05 UTCJul 25, 05:55 UTC1h 50m
2026-07-25 IGO6196 MAA → AMD Jul 25, 01:55 UTCJul 25, 02:25 UTC30m
2026-07-24 IGO919M - Jul 24, 18:15 UTCJul 24, 18:35 UTC20m
2026-07-24 IGO321F DEL → BOM Jul 24, 16:45 UTCJul 24, 17:05 UTC20m
2026-07-24 IGO321F DEL → BOM Jul 24, 14:55 UTCJul 24, 15:35 UTC40m
2026-07-24 IGO343H MAA → CCU Jul 24, 11:40 UTCJul 24, 13:40 UTC2h 0m
2026-07-24 IGO1072 HKT → BOM Jul 24, 09:25 UTCJul 24, 09:40 UTC15m
2026-07-24 IGO1073 DEL → HKT Jul 24, 00:20 UTCJul 24, 02:20 UTC2h 0m
2026-07-23 IGO1064 BKK → DEL Jul 23, 06:00 UTCJul 23, 09:55 UTC3h 55m
2026-07-23 IGO1603 COK → SHJ Jul 23, 00:35 UTCJul 23, 04:30 UTC3h 55m
2026-07-22 IGO1060 BKK → BOM Jul 22, 19:45 UTCJul 22, 20:10 UTC25m
2026-07-22 IGO1060 BKK → BOM Jul 22, 16:10 UTCJul 22, 18:35 UTC2h 25m
2026-07-21 IGO1053 DEL → BKK Jul 21, 22:50 UTCJul 22, 14:30 UTC15h 40m
2026-07-21 IGO19K - Jul 21, 14:00 UTCJul 21, 17:05 UTC3h 5m
2026-07-21 IGO47H AMD → DXB Jul 21, 09:50 UTCJul 21, 12:15 UTC2h 25m
2026-07-21 IGO1340 SIN → BOM Jul 21, 07:45 UTCJul 21, 08:10 UTC25m
2026-07-21 IGO1340 SIN → BOM Jul 21, 03:15 UTCJul 21, 03:55 UTC40m
2026-07-20 IGO1339 BOM → SIN Jul 20, 21:25 UTCJul 21, 01:40 UTC4h 14m
2026-07-20 IGO1339 BOM → SIN Jul 20, 20:20 UTCJul 20, 20:30 UTC10m
2026-07-20 IGO19K - Jul 20, 14:25 UTCJul 20, 17:20 UTC2h 55m
2026-07-20 IGO47H - Jul 20, 10:00 UTCJul 20, 10:35 UTC35m
2026-07-20 IGO1340 SIN → BOM Jul 20, 07:25 UTCJul 20, 07:50 UTC25m
2026-07-20 IGO1340 SIN → BOM Jul 20, 03:00 UTCJul 20, 06:40 UTC3h 40m
2026-07-19 IGO1339 BOM → SIN Jul 19, 21:10 UTCJul 20, 01:30 UTC4h 20m
2026-07-19 IGO1339 - Jul 19, 20:15 UTCJul 19, 20:25 UTC10m
2026-07-19 IGO19K - Jul 19, 09:50 UTCJul 19, 16:55 UTC7h 5m
2026-07-19 IGO1340 - Jul 19, 07:55 UTCJul 19, 08:15 UTC20m
2026-07-19 IGO1340 - Jul 19, 03:25 UTCJul 19, 07:20 UTC3h 55m
2026-07-18 IGO1339 - Jul 18, 21:15 UTCJul 19, 01:30 UTC4h 15m
2026-07-18 IGO1339 - Jul 18, 20:15 UTCJul 18, 20:30 UTC15m
2026-07-18 IGO19K - Jul 18, 14:00 UTCJul 18, 16:50 UTC2h 50m
2026-07-18 IGO47H - Jul 18, 09:45 UTCJul 18, 10:15 UTC30m
2026-07-18 IGO1340 - Jul 18, 07:35 UTCJul 18, 08:00 UTC25m
2026-07-18 IGO1340 - Jul 18, 03:10 UTCJul 18, 06:55 UTC3h 45m
2026-07-17 IGO1339 - Jul 17, 21:10 UTCJul 18, 01:20 UTC4h 10m
2026-07-17 IGO1339 - Jul 17, 20:10 UTCJul 17, 20:20 UTC10m
2026-07-17 IGO466W - Jul 17, 14:24 UTCJul 17, 15:29 UTC1h 5m
2026-07-17 IGO2100 BOM → HSR Jul 17, 12:55 UTCJul 17, 13:10 UTC15m
2026-07-17 IGO1604 - Jul 17, 10:40 UTCJul 17, 11:00 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 VT-NCY page for operator, model, and routing details .

Mode-S 801823 frequently asked

What is Mode-S code 801823?
801823 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-NCY.
Where is Mode-S 801823 registered?
Mode-S code 801823 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801823 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801823, octal 40014043, decimal 8,394,787.
What flights does 801823 operate?
Mode-S 801823 has broadcast 20 distinct callsigns, including IGO1060, IGO121V, IGO1054, IGO5031, IGO426L.