sensors Mode-S transponder

801725

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-IKS · AIRBUS A-320

Hex
801725
Octal
40013445
Decimal
8,394,533
Country
IN
Tail
VT-IKS
Type
A320
No current signal · last broadcast 17h ago
Flights observed
6
Distinct callsigns
5
Country
IN
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 801725.

Country allocation

The ICAO 24-bit address 801725 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 5 distinct

Callsign Airline Flights Last seen
IGO391F - 2 2026-04-13
IGO6797 IndiGo Airlines 1 2026-04-14
IGO6532 - 1 2026-04-13
IGO543J - 1 2026-04-13
IGO105E - 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 IGO6797 MAA → SAG Apr 14, 08:40 UTCApr 14, 08:55 UTC15m
2026-04-13 IGO543J - Apr 13, 12:15 UTCApr 13, 12:25 UTC10m
2026-04-13 IGO6532 - Apr 13, 10:45 UTCApr 13, 11:00 UTC15m
2026-04-13 IGO105E - Apr 13, 06:00 UTCApr 13, 06:15 UTC15m
2026-04-13 IGO391F - Apr 13, 04:20 UTCApr 13, 04:40 UTC20m
2026-04-13 IGO391F - Apr 13, 04:00 UTCApr 13, 04:15 UTC15m

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

Mode-S 801725 frequently asked

What is Mode-S code 801725?
801725 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IKS.
Where is Mode-S 801725 registered?
Mode-S code 801725 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801725 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801725, octal 40013445, decimal 8,394,533.
What flights does 801725 operate?
Mode-S 801725 has broadcast 5 distinct callsigns, including IGO391F, IGO6797, IGO6532, IGO543J, IGO105E.