sensors Mode-S transponder

8015AD

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-IBK · AIRBUS A-321neo

Hex
8015AD
Octal
40012655
Decimal
8,394,157
Country
IN
Tail
VT-IBK
Type
A21N
No current signal · last broadcast 12h ago
Flights observed
13
Distinct callsigns
9
Country
IN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 8015AD.

Country allocation

The ICAO 24-bit address 8015AD 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 9 distinct

Callsign Airline Flights Last seen
IGO154E - 3 2026-04-13
IGO2707 - 2 2026-04-13
IGO242W - 2 2026-04-13
IGO267M - 1 2026-04-13
IGO2557 - 1 2026-04-14
IGO2376 - 1 2026-04-12
IGO2356 IndiGo Airlines 1 2026-04-14
IGO2265 - 1 2026-04-13
IGO217W - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 IGO2557 - Apr 14, 10:05 UTCApr 14, 10:30 UTC25m
2026-04-14 IGO2356 DEL → SXR Apr 14, 08:15 UTCApr 14, 08:55 UTC40m
2026-04-13 IGO154E - Apr 13, 19:45 UTCApr 13, 19:50 UTC5m
2026-04-13 IGO154E - Apr 13, 17:40 UTCApr 13, 19:50 UTC2h 10m
2026-04-13 IGO154E - Apr 13, 16:00 UTCApr 13, 19:45 UTC3h 45m
2026-04-13 IGO267M - Apr 13, 13:55 UTCApr 13, 16:05 UTC2h 10m
2026-04-13 IGO242W - Apr 13, 12:20 UTCApr 13, 12:40 UTC20m
2026-04-13 IGO242W - Apr 13, 11:55 UTCApr 13, 12:15 UTC20m
2026-04-13 IGO2707 - Apr 13, 07:55 UTCApr 13, 08:05 UTC10m
2026-04-13 IGO2707 - Apr 13, 07:40 UTCApr 13, 08:05 UTC25m
2026-04-13 IGO217W - Apr 13, 05:20 UTCApr 13, 06:10 UTC50m
2026-04-13 IGO2265 - Apr 13, 00:50 UTCApr 13, 01:20 UTC30m
2026-04-12 IGO2376 - Apr 12, 17:15 UTCApr 12, 17:40 UTC25m

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

Mode-S 8015AD frequently asked

What is Mode-S code 8015AD?
8015AD is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IBK.
Where is Mode-S 8015AD registered?
Mode-S code 8015AD is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8015AD 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 8015AD, octal 40012655, decimal 8,394,157.
What flights does 8015AD operate?
Mode-S 8015AD has broadcast 9 distinct callsigns, including IGO154E, IGO2707, IGO242W, IGO267M, IGO2557.