sensors Mode-S transponder

800401

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-SCH · AIRBUS A-319

Hex
800401
Octal
40002001
Decimal
8,389,633
Country
IN
Tail
VT-SCH
Type
A319
No current signal · last broadcast 12h ago
Flights observed
11
Distinct callsigns
6
Country
IN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 800401.

Country allocation

The ICAO 24-bit address 800401 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 6 distinct

Callsign Airline Flights Last seen
AIC1VA - 3 2026-04-13
AIC1ZL - 2 2026-04-14
AIC1UE - 2 2026-04-13
AIC1QA - 2 2026-04-14
AICD1T - 1 2026-04-13
AIC1ZF - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 AIC1QA - Apr 14, 10:20 UTCApr 14, 11:05 UTC45m
2026-04-14 AIC1ZL - Apr 14, 07:55 UTCApr 14, 08:45 UTC50m
2026-04-13 AIC1UE - Apr 13, 16:15 UTCApr 13, 16:30 UTC15m
2026-04-13 AIC1UE - Apr 13, 16:10 UTCApr 13, 16:30 UTC20m
2026-04-13 AICD1T - Apr 13, 14:15 UTCApr 13, 14:45 UTC30m
2026-04-13 AIC1QA - Apr 13, 09:55 UTCApr 13, 10:40 UTC45m
2026-04-13 AIC1ZL - Apr 13, 08:20 UTCApr 13, 08:55 UTC35m
2026-04-13 AIC1VA - Apr 13, 04:20 UTCApr 13, 08:15 UTC3h 55m
2026-04-13 AIC1VA - Apr 13, 03:55 UTCApr 13, 04:25 UTC30m
2026-04-13 AIC1VA - Apr 13, 03:35 UTCApr 13, 04:15 UTC40m
2026-04-13 AIC1ZF - Apr 13, 01:35 UTCApr 13, 02:20 UTC45m

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

Mode-S 800401 frequently asked

What is Mode-S code 800401?
800401 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-SCH.
Where is Mode-S 800401 registered?
Mode-S code 800401 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 800401 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 800401, octal 40002001, decimal 8,389,633.
What flights does 800401 operate?
Mode-S 800401 has broadcast 6 distinct callsigns, including AIC1VA, AIC1ZL, AIC1UE, AIC1QA, AICD1T.