sensors Mode-S transponder

800B99

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-GHA · BOEING 737-800

Hex
800B99
Octal
40005631
Decimal
8,391,577
Country
IN
Tail
VT-GHA
Type
B738
No current signal · last broadcast 19h ago
Flights observed
8
Distinct callsigns
7
Country
IN
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 800B99.

Country allocation

The ICAO 24-bit address 800B99 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 7 distinct

Callsign Airline Flights Last seen
AXB2116 Air India Express 2 2026-04-13
AXB681 - 1 2026-04-12
AXB6076 - 1 2026-04-14
AXB6075 - 1 2026-04-14
AXB5305 - 1 2026-04-13
AXB2014 Air India Express 1 2026-04-13
AXB1368 Air India Express 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 AXB6076 - Apr 14, 08:15 UTCApr 14, 08:35 UTC20m
2026-04-14 AXB6075 - Apr 14, 05:55 UTCApr 14, 06:20 UTC25m
2026-04-13 AXB2116 BLR → LKO Apr 13, 16:15 UTCApr 13, 16:25 UTC10m
2026-04-13 AXB2116 BLR → LKO Apr 13, 15:45 UTCApr 13, 16:15 UTC30m
2026-04-13 AXB1368 IDR → BLR Apr 13, 13:55 UTCApr 13, 14:15 UTC20m
2026-04-13 AXB2014 AMD → BLR Apr 13, 10:15 UTCApr 13, 10:35 UTC20m
2026-04-13 AXB5305 - Apr 13, 01:15 UTCApr 13, 01:45 UTC30m
2026-04-12 AXB681 - Apr 12, 17:15 UTCApr 12, 17:35 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-GHA page for operator, model, and routing details .

Mode-S 800B99 frequently asked

What is Mode-S code 800B99?
800B99 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-GHA.
Where is Mode-S 800B99 registered?
Mode-S code 800B99 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 800B99 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 800B99, octal 40005631, decimal 8,391,577.
What flights does 800B99 operate?
Mode-S 800B99 has broadcast 7 distinct callsigns, including AXB2116, AXB681, AXB6076, AXB6075, AXB5305.