sensors Mode-S transponder

801685

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-BWB · BOEING 737 MAX 8

Hex
801685
Octal
40013205
Decimal
8,394,373
Country
IN
Tail
VT-BWB
Type
B38M
No current signal · last broadcast 1d ago
Flights observed
8
Distinct callsigns
8
Country
IN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 801685.

Country allocation

The ICAO 24-bit address 801685 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 8 distinct

Callsign Airline Flights Last seen
AXB2153 - 1 2026-04-13
AXB1684 - 1 2026-04-12
AXB1235 - 1 2026-04-13
AXB1167 - 1 2026-04-13
AXB1165 - 1 2026-04-13
AXB1084 - 1 2026-04-13
AXB1083 - 1 2026-04-13
AXB1038 Air India Express 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 AXB1235 - Apr 13, 18:25 UTCApr 13, 19:00 UTC35m
2026-04-13 AXB2153 - Apr 13, 16:20 UTCApr 13, 17:40 UTC1h 20m
2026-04-13 AXB1038 GAU → DEL Apr 13, 12:20 UTCApr 13, 12:55 UTC35m
2026-04-13 AXB1084 - Apr 13, 09:05 UTCApr 13, 09:55 UTC50m
2026-04-13 AXB1083 - Apr 13, 05:00 UTCApr 13, 05:35 UTC35m
2026-04-13 AXB1167 - Apr 13, 02:55 UTCApr 13, 03:35 UTC40m
2026-04-13 AXB1165 - Apr 13, 00:50 UTCApr 13, 01:40 UTC50m
2026-04-12 AXB1684 - Apr 12, 19:10 UTCApr 12, 19:45 UTC35m

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

Mode-S 801685 frequently asked

What is Mode-S code 801685?
801685 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-BWB.
Where is Mode-S 801685 registered?
Mode-S code 801685 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801685 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801685, octal 40013205, decimal 8,394,373.
What flights does 801685 operate?
Mode-S 801685 has broadcast 8 distinct callsigns, including AXB2153, AXB1684, AXB1235, AXB1167, AXB1165.