sensors Mode-S transponder

80177D

ICAO 24-bit transponder address · allocated to India

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

Hex
80177D
Octal
40013575
Decimal
8,394,621
Country
IN
Tail
VT-NCK
Type
A21N
No current signal · last broadcast 14h ago
Flights observed
7
Distinct callsigns
2
Country
IN
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 80177D.

Country allocation

The ICAO 24-bit address 80177D 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 2 distinct

Callsign Airline Flights Last seen
IGO78W IndiGo Airlines 4 2026-04-14
IGO1462 IndiGo Airlines 3 2026-04-14

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 IGO1462 DXB → DEL Apr 14, 10:40 UTCApr 14, 11:05 UTC25m
2026-04-14 IGO1462 DXB → DEL Apr 14, 08:15 UTCApr 14, 08:40 UTC25m
2026-04-14 IGO78W BOM → GOI Apr 14, 06:35 UTCApr 14, 07:00 UTC25m
2026-04-13 IGO1462 - Apr 13, 08:25 UTCApr 13, 11:25 UTC3h 0m
2026-04-13 IGO78W - Apr 13, 06:30 UTCApr 13, 06:55 UTC25m
2026-04-13 IGO78W - Apr 13, 03:55 UTCApr 13, 06:55 UTC3h 0m
2026-04-13 IGO78W - Apr 13, 03:30 UTCApr 13, 04:00 UTC30m

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

Mode-S 80177D frequently asked

What is Mode-S code 80177D?
80177D is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-NCK.
Where is Mode-S 80177D registered?
Mode-S code 80177D is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 80177D broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 80177D, octal 40013575, decimal 8,394,621.
What flights does 80177D operate?
Mode-S 80177D has broadcast 2 distinct callsigns, including IGO78W, IGO1462.