Apparatus

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sensors Mode-S transponder

801659

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-JRF · AIRBUS A-350-900

Hex
801659
Octal
40013131
Decimal
8,394,329
Country
IN
Tail
VT-JRF
Type
A359
No current signal · last broadcast 16h ago
Flights observed
8
Distinct callsigns
2
Country
IN
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 801659.

Country allocation

The ICAO 24-bit address 801659 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
AIC2017 Air India 6 2026-04-13
AIC2018 Air India 2 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 AIC2018 LHR → DEL Apr 14, 06:15 UTCApr 14, 07:00 UTC45m
2026-04-13 AIC2018 LHR → DEL Apr 13, 21:10 UTCApr 13, 23:40 UTC2h 30m
2026-04-13 AIC2017 DEL → LHR Apr 13, 16:15 UTCApr 13, 19:15 UTC3h 0m
2026-04-13 AIC2017 DEL → LHR Apr 13, 15:50 UTCApr 13, 19:15 UTC3h 25m
2026-04-13 AIC2017 DEL → LHR Apr 13, 14:20 UTCApr 13, 16:15 UTC1h 55m
2026-04-13 AIC2017 DEL → LHR Apr 13, 11:55 UTCApr 13, 15:50 UTC3h 55m
2026-04-13 AIC2017 DEL → LHR Apr 13, 08:20 UTCApr 13, 12:10 UTC3h 50m
2026-04-13 AIC2017 DEL → LHR Apr 13, 08:10 UTCApr 13, 11:50 UTC3h 40m

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

Mode-S 801659 frequently asked

What is Mode-S code 801659?
801659 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-JRF.
Where is Mode-S 801659 registered?
Mode-S code 801659 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801659 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 801659, octal 40013131, decimal 8,394,329.
What flights does 801659 operate?
Mode-S 801659 has broadcast 2 distinct callsigns, including AIC2017, AIC2018.