sensors Mode-S transponder

801531

ICAO 24-bit transponder address · allocated to India

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

Hex
801531
Octal
40012461
Decimal
8,394,033
Country
IN
Tail
VT-IMW
Type
A21N
No current signal · last broadcast 16h ago
Flights observed
11
Distinct callsigns
11
Country
IN
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 801531.

Country allocation

The ICAO 24-bit address 801531 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 11 distinct

Callsign Airline Flights Last seen
IGO959 IndiGo Airlines 1 2026-04-13
IGO901 - 1 2026-04-13
IGO732J - 1 2026-04-13
IGO6739 - 1 2026-04-13
IGO6738 - 1 2026-04-13
IGO6319 - 1 2026-04-14
IGO6163 - 1 2026-04-13
IGO609P - 1 2026-04-13
IGO519P IndiGo Airlines 1 2026-04-13
IGO497 - 1 2026-04-13
IGO364F - 1 2026-04-14

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 IGO6319 - Apr 14, 08:35 UTCApr 14, 09:00 UTC25m
2026-04-14 IGO364F - Apr 14, 07:00 UTCApr 14, 07:10 UTC10m
2026-04-13 IGO609P - Apr 13, 22:55 UTCApr 13, 23:15 UTC20m
2026-04-13 IGO901 - Apr 13, 18:40 UTCApr 13, 19:00 UTC20m
2026-04-13 IGO732J - Apr 13, 16:30 UTCApr 13, 16:55 UTC25m
2026-04-13 IGO6163 - Apr 13, 14:35 UTCApr 13, 14:50 UTC15m
2026-04-13 IGO519P BLR → GOI Apr 13, 12:25 UTCApr 13, 12:50 UTC25m
2026-04-13 IGO6739 - Apr 13, 10:35 UTCApr 13, 11:00 UTC25m
2026-04-13 IGO6738 - Apr 13, 07:05 UTCApr 13, 07:55 UTC50m
2026-04-13 IGO497 - Apr 13, 05:10 UTCApr 13, 05:55 UTC45m
2026-04-13 IGO959 BLR → IDR Apr 13, 02:20 UTCApr 13, 02:40 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-IMW page for operator, model, and routing details .

Mode-S 801531 frequently asked

What is Mode-S code 801531?
801531 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IMW.
Where is Mode-S 801531 registered?
Mode-S code 801531 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801531 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801531, octal 40012461, decimal 8,394,033.
What flights does 801531 operate?
Mode-S 801531 has broadcast 11 distinct callsigns, including IGO959, IGO901, IGO732J, IGO6739, IGO6738.