sensors Mode-S transponder

801643

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-BXK · BOEING 737 MAX 8

Hex
801643
Octal
40013103
Decimal
8,394,307
Country
IN
Tail
VT-BXK
Type
B38M
No current signal · last broadcast 12h ago
Flights observed
9
Distinct callsigns
6
Country
IN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 801643.

Country allocation

The ICAO 24-bit address 801643 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
AXB1536 Air India Express 3 2026-04-14
AXB1491 - 2 2026-04-13
AXB2717 - 1 2026-04-13
AXB1470 - 1 2026-04-13
AXB1216 Air India Express 1 2026-04-14
AXB1098 - 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 AXB1536 BLR → BBI Apr 14, 10:55 UTCApr 14, 11:05 UTC10m
2026-04-14 AXB1536 BLR → BBI Apr 14, 10:10 UTCApr 14, 10:20 UTC10m
2026-04-14 AXB1216 BLR → GWL Apr 14, 07:55 UTCApr 14, 08:15 UTC20m
2026-04-13 AXB1098 - Apr 13, 16:55 UTCApr 13, 17:10 UTC15m
2026-04-13 AXB2717 - Apr 13, 12:45 UTCApr 13, 13:05 UTC20m
2026-04-13 AXB1536 - Apr 13, 10:50 UTCApr 13, 11:20 UTC30m
2026-04-13 AXB1491 - Apr 13, 05:45 UTCApr 13, 05:55 UTC10m
2026-04-13 AXB1491 - Apr 13, 04:05 UTCApr 13, 04:15 UTC10m
2026-04-13 AXB1470 - Apr 13, 02:30 UTCApr 13, 02:40 UTC10m

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

Mode-S 801643 frequently asked

What is Mode-S code 801643?
801643 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-BXK.
Where is Mode-S 801643 registered?
Mode-S code 801643 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801643 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 801643, octal 40013103, decimal 8,394,307.
What flights does 801643 operate?
Mode-S 801643 has broadcast 6 distinct callsigns, including AXB1536, AXB1491, AXB2717, AXB1470, AXB1216.