Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

801819

ICAO 24-bit transponder address · allocated to India

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

Hex
801819
Octal
40014031
Decimal
8,394,777
Country
IN
Tail
VT-NHD
Type
A21N
No current signal · last broadcast Jul 26, 17:45 UTC
Flights observed
609
Distinct callsigns
20
Country
IN
Last broadcast
Jul 26, 17:45 UTC

Last known position

Most recent position reported by Mode-S 801819.

Country allocation

The ICAO 24-bit address 801819 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
IGO390M IndiGo Airlines 10 2026-07-19
IGO1060 - 10 2026-07-06
IGO1343 - 9 2026-06-29
IGO69TA - 8 2026-07-16
IGO310C - 8 2026-07-02
IGO182E - 8 2026-07-19
IGO115 - 8 2026-07-16
IGO6515 IndiGo Airlines 7 2026-06-09
IGO636W - 7 2026-07-02
IGO5194 - 7 2026-07-16
IGO1074 IndiGo Airlines 7 2026-07-20
IGO1025 - 7 2026-06-28
IGO6706 IndiGo Airlines 6 2026-05-19
IGO6704 IndiGo Airlines 6 2026-05-19
IGO451M IndiGo Airlines 6 2026-07-26
IGO357L IndiGo Airlines 6 2026-05-19
IGO246F - 6 2026-07-16
IGO137P - 6 2026-07-03
IGO833W - 5 2026-06-18
IGO671W - 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 IGO392M - Jul 26, 15:20 UTCJul 26, 17:45 UTC2h 25m
2026-07-26 IGO38FL - Jul 26, 11:45 UTCJul 26, 12:20 UTC35m
2026-07-26 IGO324P VNS → CCU Jul 26, 09:30 UTCJul 26, 10:15 UTC45m
2026-07-26 IGO324P VNS → CCU Jul 26, 07:50 UTCJul 26, 08:05 UTC15m
2026-07-26 IGO451M BLR → AMD Jul 26, 06:20 UTCJul 26, 06:30 UTC10m
2026-07-26 IGO451M BLR → AMD Jul 26, 04:15 UTCJul 26, 04:50 UTC35m
2026-07-25 IGO334V HYD → BHO Jul 25, 15:50 UTCJul 26, 02:50 UTC11h 0m
2026-07-25 IGO264E DEL → PNQ Jul 25, 12:10 UTCJul 25, 14:10 UTC2h 0m
2026-07-25 IGO910 DEL → CCU Jul 25, 09:15 UTCJul 25, 11:10 UTC1h 55m
2026-07-25 IGO769V CCU → DEL Jul 25, 05:10 UTCJul 25, 07:05 UTC1h 55m
2026-07-25 IGO315J DEL → CCU Jul 25, 02:10 UTCJul 25, 04:10 UTC2h 0m
2026-07-24 IGO665W DEL → DEL Jul 24, 13:30 UTCJul 24, 19:40 UTC6h 10m
2026-07-24 IGO527E MAA → DEL Jul 24, 11:20 UTCJul 24, 12:05 UTC45m
2026-07-24 IGO701J - Jul 24, 08:10 UTCJul 24, 08:30 UTC20m
2026-07-24 IGO701J - Jul 24, 06:05 UTCJul 24, 06:40 UTC35m
2026-07-23 IGO937 BDQ → BOM Jul 23, 17:45 UTCJul 24, 03:30 UTC9h 45m
2026-07-23 IGO303J DEL → DEL Jul 23, 10:00 UTCJul 23, 16:15 UTC6h 15m
2026-07-23 IGO119Y DEL → DEL Jul 23, 01:55 UTCJul 23, 08:15 UTC6h 20m
2026-07-22 IGO2369 MAA → DEL Jul 22, 16:55 UTCJul 22, 21:05 UTC4h 10m
2026-07-22 IGO901M HYD → BLR Jul 22, 16:05 UTCJul 22, 16:15 UTC10m
2026-07-22 IGO5367 MAA → BOM Jul 22, 05:20 UTCJul 22, 14:50 UTC9h 30m
2026-07-22 IGO346K DEL → HBX Jul 22, 04:35 UTCJul 22, 04:45 UTC10m
2026-07-22 IGO64ME BLR → AMD Jul 22, 02:50 UTCJul 22, 03:10 UTC20m
2026-07-21 IGO136 BOM → MAA Jul 21, 23:25 UTCJul 22, 02:10 UTC2h 45m
2026-07-21 IGO1604 SHJ → COK Jul 21, 07:05 UTCJul 21, 09:25 UTC2h 20m
2026-07-21 IGO1347 DEL → BKK Jul 21, 01:35 UTCJul 21, 05:25 UTC3h 50m
2026-07-20 IGO72P - Jul 20, 20:05 UTCJul 20, 23:00 UTC2h 55m
2026-07-20 IGO1463 - Jul 20, 16:55 UTCJul 20, 17:10 UTC15m
2026-07-20 IGO1463 - Jul 20, 14:00 UTCJul 20, 15:40 UTC1h 40m
2026-07-20 IGO1074 HKT → DEL Jul 20, 07:55 UTCJul 20, 08:30 UTC35m
2026-07-19 IGO1074 HKT → DEL Jul 19, 22:35 UTCJul 20, 06:55 UTC8h 20m
2026-07-19 IGO182E - Jul 19, 17:15 UTCJul 19, 17:35 UTC20m
2026-07-19 IGO182E - Jul 19, 15:50 UTCJul 19, 16:25 UTC35m
2026-07-19 IGO315 - Jul 19, 12:10 UTCJul 19, 13:55 UTC1h 45m
2026-07-19 IGO390M DEL → BOM Jul 19, 10:15 UTCJul 19, 10:25 UTC10m
2026-07-19 IGO390M DEL → BOM Jul 19, 08:50 UTCJul 19, 09:20 UTC30m
2026-07-19 IGO671W - Jul 19, 05:20 UTCJul 19, 07:10 UTC1h 50m
2026-07-19 IGO6196 - Jul 19, 01:55 UTCJul 19, 02:10 UTC15m
2026-07-18 IGO919M - Jul 18, 17:40 UTCJul 18, 18:05 UTC25m
2026-07-18 IGO321F - Jul 18, 16:20 UTCJul 18, 16:35 UTC15m
2026-07-18 IGO321F - Jul 18, 14:45 UTCJul 18, 15:20 UTC35m
2026-07-18 IGO343H - Jul 18, 11:40 UTCJul 18, 13:20 UTC1h 40m
2026-07-18 IGO1072 - Jul 18, 09:00 UTCJul 18, 09:10 UTC10m
2026-07-17 IGO1073 DEL → HKT Jul 17, 23:50 UTCJul 18, 01:45 UTC1h 55m
2026-07-17 IGO276P - Jul 17, 19:49 UTCJul 17, 20:15 UTC25m
2026-07-17 IGO276P - Jul 17, 18:00 UTCJul 17, 18:15 UTC15m
2026-07-17 IGO817L - Jul 17, 16:19 UTCJul 17, 16:34 UTC15m
2026-07-17 IGO817L - Jul 17, 14:20 UTCJul 17, 14:55 UTC35m
2026-07-17 IGO472V - Jul 17, 10:25 UTCJul 17, 12:40 UTC2h 15m
2026-07-17 IGO376E - Jul 17, 08:20 UTCJul 17, 08:45 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-NHD page for operator, model, and routing details .

Mode-S 801819 frequently asked

What is Mode-S code 801819?
801819 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-NHD.
Where is Mode-S 801819 registered?
Mode-S code 801819 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801819 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801819, octal 40014031, decimal 8,394,777.
What flights does 801819 operate?
Mode-S 801819 has broadcast 20 distinct callsigns, including IGO390M, IGO1060, IGO1343, IGO69TA, IGO310C.