Apparatus

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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 13h ago
Flights observed
324
Distinct callsigns
20
Country
IN
Last broadcast
13h 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 20 distinct

Callsign Airline Flights Last seen
AIC4QQ Air India 28 2026-06-30
AIC5BE - 27 2026-06-30
AIC3BT Air India 27 2026-06-30
AIC4ZP Air India 16 2026-06-30
AIC2XQ Air India 16 2026-05-24
AIC8QJ Air India 10 2026-05-24
AIC6RB Air India 9 2026-05-28
AIC3PK Air India 9 2026-05-29
AIC8JQ Air India 8 2026-05-29
AIC8HU Air India 8 2026-05-29
AIC2MZ - 7 2026-04-28
AIC1VA - 7 2026-04-23
AIC1QA - 7 2026-04-23
AIC8CK Air India 6 2026-05-26
AIC7ML Air India 6 2026-05-27
AIC5DT Air India 6 2026-05-27
AIC5DP Air India 6 2026-05-26
AIC2LY - 6 2026-04-28
AIC1ZL - 6 2026-04-23
AIC1YA Air India 6 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AIC2VZ - Jul 14, 04:05 UTCJul 14, 06:45 UTC2h 40m
2026-07-14 AIC2VZ - Jul 14, 00:25 UTCJul 14, 02:10 UTC1h 45m
2026-07-13 AIC3DJ - Jul 13, 16:40 UTCJul 13, 19:25 UTC2h 45m
2026-07-12 AIC6WJ - Jul 12, 02:30 UTCJul 12, 03:25 UTC55m
2026-07-12 AIC3LU - Jul 12, 00:35 UTCJul 12, 01:05 UTC30m
2026-07-11 AIC6WJ - Jul 11, 03:10 UTCJul 11, 03:35 UTC25m
2026-07-11 AIC3LU - Jul 11, 01:20 UTCJul 11, 01:55 UTC35m
2026-07-09 AIC6KL - Jul 9, 09:40 UTCJul 9, 10:15 UTC35m
2026-07-09 AIC3RK - Jul 9, 07:50 UTCJul 9, 08:15 UTC25m
2026-07-09 AIC6WJ - Jul 9, 02:30 UTCJul 9, 03:25 UTC55m
2026-07-09 AIC3LU - Jul 9, 00:30 UTCJul 9, 00:50 UTC20m
2026-07-08 AIC1GA - Jul 8, 16:15 UTCJul 8, 18:25 UTC2h 10m
2026-07-08 AIC5PK - Jul 8, 13:10 UTCJul 8, 15:10 UTC2h 0m
2026-07-08 AIC6WJ - Jul 8, 02:35 UTCJul 8, 03:20 UTC45m
2026-07-08 AIC3LU - Jul 8, 00:50 UTCJul 8, 01:15 UTC25m
2026-07-07 AIC5QB - Jul 7, 00:50 UTCJul 7, 04:40 UTC3h 50m
2026-07-05 AIC3UH - Jul 5, 03:55 UTCJul 5, 04:30 UTC35m
2026-07-05 AIC1AL - Jul 5, 02:00 UTCJul 5, 02:30 UTC30m
2026-06-30 AIC5BE - Jun 30, 08:25 UTCJun 30, 10:05 UTC1h 40m
2026-06-30 AIC4ZP DEL → BBI Jun 30, 05:20 UTCJun 30, 06:50 UTC1h 30m
2026-06-30 AIC4QQ JAI → DEL Jun 30, 03:30 UTCJun 30, 04:10 UTC40m
2026-06-30 AIC3BT DEL → JAI Jun 30, 02:10 UTCJun 30, 02:30 UTC20m
2026-06-28 AIC5BE BBI → DEL Jun 28, 05:34 UTCJun 28, 10:04 UTC4h 30m
2026-06-28 AIC4QQ JAI → DEL Jun 28, 03:45 UTCJun 28, 04:25 UTC40m
2026-06-28 AIC3BT DEL → JAI Jun 28, 02:25 UTCJun 28, 02:44 UTC20m
2026-06-26 AIC5BE BBI → DEL Jun 26, 08:20 UTCJun 26, 10:05 UTC1h 45m
2026-06-26 AIC4ZP DEL → BBI Jun 26, 05:35 UTCJun 26, 07:05 UTC1h 30m
2026-06-26 AIC4QQ JAI → DEL Jun 26, 03:29 UTCJun 26, 04:10 UTC40m
2026-06-26 AIC3BT DEL → JAI Jun 26, 02:05 UTCJun 26, 02:24 UTC20m
2026-06-25 AIC5BE BBI → DEL Jun 25, 05:25 UTCJun 25, 10:15 UTC4h 50m
2026-06-25 AIC4QQ JAI → DEL Jun 25, 03:29 UTCJun 25, 04:04 UTC35m
2026-06-25 AIC3BT DEL → JAI Jun 25, 02:05 UTCJun 25, 02:25 UTC20m
2026-06-24 AIC5BE BBI → DEL Jun 24, 08:35 UTCJun 24, 10:25 UTC1h 50m
2026-06-24 AIC4ZP DEL → BBI Jun 24, 05:44 UTCJun 24, 07:20 UTC1h 35m
2026-06-24 AIC4QQ JAI → DEL Jun 24, 03:44 UTCJun 24, 04:20 UTC35m
2026-06-24 AIC3BT DEL → JAI Jun 24, 02:09 UTCJun 24, 02:30 UTC20m
2026-06-22 AIC5BE BBI → DEL Jun 22, 08:19 UTCJun 22, 10:00 UTC1h 40m
2026-06-22 AIC4ZP DEL → BBI Jun 22, 05:24 UTCJun 22, 07:00 UTC1h 35m
2026-06-22 AIC4QQ JAI → DEL Jun 22, 03:30 UTCJun 22, 04:15 UTC45m
2026-06-22 AIC3BT DEL → JAI Jun 22, 02:00 UTCJun 22, 02:19 UTC20m
2026-06-21 AIC5BE BBI → DEL Jun 21, 09:44 UTCJun 21, 10:14 UTC30m
2026-06-21 AIC5BE BBI → DEL Jun 21, 08:30 UTCJun 21, 08:44 UTC15m
2026-06-21 AIC4ZP DEL → BBI Jun 21, 05:44 UTCJun 21, 07:14 UTC1h 30m
2026-06-21 AIC4QQ JAI → DEL Jun 21, 03:40 UTCJun 21, 04:20 UTC40m
2026-06-21 AIC3BT DEL → JAI Jun 21, 02:10 UTCJun 21, 02:30 UTC20m
2026-06-20 AIC5BE BBI → DEL Jun 20, 09:24 UTCJun 20, 10:09 UTC45m
2026-06-20 AIC5BE BBI → DEL Jun 20, 08:25 UTCJun 20, 08:39 UTC15m
2026-06-20 AIC4ZP DEL → BBI Jun 20, 05:39 UTCJun 20, 07:09 UTC1h 30m
2026-06-20 AIC4QQ JAI → DEL Jun 20, 03:39 UTCJun 20, 04:20 UTC40m
2026-06-20 AIC3BT DEL → JAI Jun 20, 02:14 UTCJun 20, 02:35 UTC20m

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 13h 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 20 distinct callsigns, including AIC4QQ, AIC5BE, AIC3BT, AIC4ZP, AIC2XQ.