sensors Mode-S transponder

801749

ICAO 24-bit transponder address · allocated to India

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

Hex
801749
Octal
40013511
Decimal
8,394,569
Country
IN
Tail
VT-ICY
Type
A21N
No current signal · last broadcast 16h ago
Flights observed
10
Distinct callsigns
8
Country
IN
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 801749.

Country allocation

The ICAO 24-bit address 801749 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 8 distinct

Callsign Airline Flights Last seen
IGO952 - 2 2026-04-13
IGO874 IndiGo Airlines 2 2026-04-14
IGO741K - 1 2026-04-13
IGO691 - 1 2026-04-12
IGO5034 - 1 2026-04-13
IGO465 - 1 2026-04-13
IGO412 - 1 2026-04-13
IGO106P - 1 2026-04-12

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 IGO874 IXC → SXR Apr 14, 07:10 UTCApr 14, 08:35 UTC1h 25m
2026-04-14 IGO874 IXC → SXR Apr 14, 06:35 UTCApr 14, 07:10 UTC35m
2026-04-13 IGO952 - Apr 13, 18:00 UTCApr 13, 19:20 UTC1h 20m
2026-04-13 IGO952 - Apr 13, 17:10 UTCApr 13, 17:25 UTC15m
2026-04-13 IGO5034 - Apr 13, 14:45 UTCApr 13, 15:15 UTC30m
2026-04-13 IGO465 - Apr 13, 07:35 UTCApr 13, 07:45 UTC10m
2026-04-13 IGO412 - Apr 13, 06:00 UTCApr 13, 06:10 UTC10m
2026-04-13 IGO741K - Apr 13, 01:25 UTCApr 13, 01:45 UTC20m
2026-04-12 IGO691 - Apr 12, 18:10 UTCApr 12, 19:05 UTC55m
2026-04-12 IGO106P - Apr 12, 17:15 UTCApr 12, 17:25 UTC10m

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

Mode-S 801749 frequently asked

What is Mode-S code 801749?
801749 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-ICY.
Where is Mode-S 801749 registered?
Mode-S code 801749 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801749 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 801749, octal 40013511, decimal 8,394,569.
What flights does 801749 operate?
Mode-S 801749 has broadcast 8 distinct callsigns, including IGO952, IGO874, IGO741K, IGO691, IGO5034.