sensors Mode-S transponder

800FD1

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-IYY · ATR-72-600

Hex
800FD1
Octal
40007721
Decimal
8,392,657
Country
IN
Tail
VT-IYY
Type
AT76
No current signal · last broadcast 19h ago
Flights observed
9
Distinct callsigns
9
Country
IN
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 800FD1.

Country allocation

The ICAO 24-bit address 800FD1 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 9 distinct

Callsign Airline Flights Last seen
IGO9YC - 1 2026-04-13
IGO7918 - 1 2026-04-13
IGO7917 - 1 2026-04-13
IGO7712 - 1 2026-04-13
IGO7711 - 1 2026-04-13
IGO7226 - 1 2026-04-13
IGO7177 - 1 2026-04-14
IGO3JY - 1 2026-04-13
IGO1VP IndiGo Airlines 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 IGO7177 - Apr 14, 08:45 UTCApr 14, 08:55 UTC10m
2026-04-13 IGO9YC - Apr 13, 15:15 UTCApr 13, 15:35 UTC20m
2026-04-13 IGO7226 - Apr 13, 12:50 UTCApr 13, 13:10 UTC20m
2026-04-13 IGO7712 - Apr 13, 11:20 UTCApr 13, 11:55 UTC35m
2026-04-13 IGO7711 - Apr 13, 09:35 UTCApr 13, 10:05 UTC30m
2026-04-13 IGO7918 - Apr 13, 07:30 UTCApr 13, 08:00 UTC30m
2026-04-13 IGO7917 - Apr 13, 06:15 UTCApr 13, 06:40 UTC25m
2026-04-13 IGO3JY - Apr 13, 03:45 UTCApr 13, 04:15 UTC30m
2026-04-13 IGO1VP BLR → IXG Apr 13, 01:30 UTCApr 13, 02:00 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-IYY page for operator, model, and routing details .

Mode-S 800FD1 frequently asked

What is Mode-S code 800FD1?
800FD1 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IYY.
Where is Mode-S 800FD1 registered?
Mode-S code 800FD1 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 800FD1 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 800FD1, octal 40007721, decimal 8,392,657.
What flights does 800FD1 operate?
Mode-S 800FD1 has broadcast 9 distinct callsigns, including IGO9YC, IGO7918, IGO7917, IGO7712, IGO7711.