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sensors Mode-S transponder

801864

ICAO 24-bit transponder address · allocated to India

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

Hex
801864
Octal
40014144
Decimal
8,394,852
Country
IN
Tail
VT-NHQ
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
440
Distinct callsigns
20
Country
IN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 801864.

Country allocation

The ICAO 24-bit address 801864 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
IGO094 IndiGo Airlines 9 2026-06-10
IGO179 IndiGo Airlines 6 2026-06-10
IGO936J - 5 2026-04-30
IGO6701 IndiGo Airlines 5 2026-04-30
IGO874 - 4 2026-06-26
IGO6535 IndiGo Airlines 4 2026-06-12
IGO542M - 4 2026-04-26
IGO5135 IndiGo Airlines 4 2026-04-21
IGO5066 IndiGo Airlines 4 2026-04-28
IGO271J - 4 2026-05-01
IGO993H - 3 2026-04-23
IGO767K - 3 2026-04-28
IGO749 - 3 2026-06-30
IGO6938 IndiGo Airlines 3 2026-04-30
IGO6937 IndiGo Airlines 3 2026-04-30
IGO676 IndiGo Airlines 3 2026-06-13
IGO671 - 3 2026-07-08
IGO6542 - 3 2026-07-11
IGO6153 - 3 2026-06-25
IGO6135 - 3 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 IGO995 - Jul 17, 10:44 UTCJul 18, 05:00 UTC18h 16m
2026-07-17 IGO6191 - Jul 17, 08:40 UTCJul 17, 08:59 UTC20m
2026-07-17 IGO6192 - Jul 17, 07:00 UTCJul 17, 07:14 UTC15m
2026-07-17 IGO991 - Jul 17, 01:49 UTCJul 17, 05:25 UTC3h 35m
2026-07-16 IGO516K - Jul 16, 16:15 UTCJul 16, 16:55 UTC40m
2026-07-16 IGO529Y - Jul 16, 14:35 UTCJul 16, 15:14 UTC40m
2026-07-16 IGO2041 - Jul 16, 11:34 UTCJul 16, 13:20 UTC1h 45m
2026-07-16 IGO139C - Jul 16, 09:55 UTCJul 16, 10:45 UTC50m
2026-07-16 IGO6428 - Jul 16, 07:30 UTCJul 16, 08:25 UTC55m
2026-07-16 IGO6144 - Jul 16, 05:35 UTCJul 16, 06:35 UTC1h 0m
2026-07-16 IGO542 - Jul 16, 03:40 UTCJul 16, 04:15 UTC35m
2026-07-16 IGO541 - Jul 16, 01:55 UTCJul 16, 02:15 UTC20m
2026-07-15 IGO6564 - Jul 15, 19:40 UTCJul 15, 22:55 UTC3h 15m
2026-07-15 IGO107 - Jul 15, 13:35 UTCJul 15, 17:00 UTC3h 25m
2026-07-15 IGO1127 - Jul 15, 07:25 UTCJul 15, 12:05 UTC4h 40m
2026-07-15 IGO6142 - Jul 15, 05:10 UTCJul 15, 05:20 UTC10m
2026-07-15 IGO6142 - Jul 15, 03:25 UTCJul 15, 03:35 UTC10m
2026-07-14 IGO6141 - Jul 14, 13:05 UTCJul 14, 16:30 UTC3h 25m
2026-07-14 IGO6059 - Jul 14, 04:45 UTCJul 14, 05:00 UTC15m
2026-07-14 IGO475 - Jul 14, 03:10 UTCJul 14, 03:40 UTC30m
2026-07-14 IGO697L - Jul 14, 01:40 UTCJul 14, 02:05 UTC25m
2026-07-13 IGO6077 - Jul 13, 15:05 UTCJul 13, 15:20 UTC15m
2026-07-13 IGO757 - Jul 13, 13:40 UTCJul 13, 14:00 UTC20m
2026-07-13 IGO757 - Jul 13, 11:50 UTCJul 13, 12:55 UTC1h 5m
2026-07-13 IGO172 - Jul 13, 08:20 UTCJul 13, 10:45 UTC2h 25m
2026-07-13 IGO231H - Jul 13, 06:25 UTCJul 13, 06:40 UTC15m
2026-07-13 IGO231H - Jul 13, 04:45 UTCJul 13, 05:50 UTC1h 5m
2026-07-13 IGO6439 - Jul 13, 01:05 UTCJul 13, 03:20 UTC2h 15m
2026-07-12 IGO23EC - Jul 12, 15:55 UTCJul 12, 16:10 UTC15m
2026-07-12 IGO42RY - Jul 12, 11:30 UTCJul 12, 15:01 UTC3h 30m
2026-07-12 IGO455 - Jul 12, 09:50 UTCJul 12, 10:05 UTC15m
2026-07-12 IGO455 - Jul 12, 08:05 UTCJul 12, 09:15 UTC1h 10m
2026-07-12 IGO503 - Jul 12, 04:35 UTCJul 12, 06:50 UTC2h 15m
2026-07-12 IGO249 - Jul 12, 00:35 UTCJul 12, 03:15 UTC2h 40m
2026-07-11 IGO316 - Jul 11, 17:45 UTCJul 11, 17:55 UTC10m
2026-07-11 IGO316 - Jul 11, 15:25 UTCJul 11, 17:00 UTC1h 35m
2026-07-11 IGO6774 - Jul 11, 11:05 UTCJul 11, 13:35 UTC2h 30m
2026-07-11 IGO6774 - Jul 11, 09:30 UTCJul 11, 09:55 UTC25m
2026-07-11 IGO6542 - Jul 11, 07:55 UTCJul 11, 08:10 UTC15m
2026-07-11 IGO6542 - Jul 11, 06:10 UTCJul 11, 06:20 UTC10m
2026-07-11 IGO6542 - Jul 11, 03:50 UTCJul 11, 05:31 UTC1h 40m
2026-07-10 IGO457 - Jul 10, 23:50 UTCJul 11, 02:30 UTC2h 40m
2026-07-10 IGO361 - Jul 10, 17:50 UTCJul 10, 20:55 UTC3h 5m
2026-07-10 IGO45CH - Jul 10, 14:05 UTCJul 10, 16:35 UTC2h 30m
2026-07-10 IGO942 - Jul 10, 12:40 UTCJul 10, 12:55 UTC15m
2026-07-10 IGO942 - Jul 10, 10:40 UTCJul 10, 11:10 UTC30m
2026-07-10 IGO941 - Jul 10, 07:30 UTCJul 10, 09:30 UTC2h 0m
2026-07-09 IGO145 - Jul 9, 14:25 UTCJul 9, 14:55 UTC30m
2026-07-09 IGO401V - Jul 9, 12:25 UTCJul 9, 13:00 UTC35m
2026-07-09 IGO182 - Jul 9, 09:35 UTCJul 9, 10:10 UTC35m

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

Mode-S 801864 frequently asked

What is Mode-S code 801864?
801864 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-NHQ.
Where is Mode-S 801864 registered?
Mode-S code 801864 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801864 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801864, octal 40014144, decimal 8,394,852.
What flights does 801864 operate?
Mode-S 801864 has broadcast 20 distinct callsigns, including IGO094, IGO179, IGO936J, IGO6701, IGO874.