Apparatus

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sensors Mode-S transponder

8015A4

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-IPS · AIRBUS A-320neo

Hex
8015A4
Octal
40012644
Decimal
8,394,148
Country
IN
Tail
VT-IPS
Type
A20N
No current signal · last broadcast Jul 26, 14:15 UTC
Flights observed
518
Distinct callsigns
20
Country
IN
Last broadcast
Jul 26, 14:15 UTC

Last known position

Most recent position reported by Mode-S 8015A4.

Country allocation

The ICAO 24-bit address 8015A4 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 20 distinct

Callsign Airline Flights Last seen
IGO6634 - 6 2026-07-08
IGO509 IndiGo Airlines 6 2026-07-23
IGO501E - 6 2026-06-08
IGO931P - 5 2026-07-20
IGO6799 IndiGo Airlines 5 2026-07-24
IGO5306 IndiGo Airlines 5 2026-06-10
IGO512E IndiGo Airlines 5 2026-06-10
IGO221 IndiGo Airlines 5 2026-07-23
IGO146 - 5 2026-07-07
IGO6619 - 4 2026-06-26
IGO653 IndiGo Airlines 4 2026-06-06
IGO6485 - 4 2026-07-06
IGO6417 IndiGo Airlines 4 2026-04-25
IGO6104 IndiGo Airlines 4 2026-07-24
IGO601M - 4 2026-07-15
IGO582E - 4 2026-07-12
IGO403 - 4 2026-07-12
IGO275Y - 4 2026-07-23
IGO2519 IndiGo Airlines 4 2026-06-08
IGO162P - 4 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 IGO737 HBX → BOM Jul 26, 14:00 UTCJul 26, 14:15 UTC15m
2026-07-26 IGO736 - Jul 26, 11:55 UTCJul 26, 12:15 UTC20m
2026-07-26 IGO5338 AGR → BOM Jul 26, 10:25 UTCJul 26, 10:50 UTC25m
2026-07-26 IGO5338 AGR → BOM Jul 26, 09:20 UTCJul 26, 09:40 UTC20m
2026-07-26 IGO5316 - Jul 26, 06:20 UTCJul 26, 07:50 UTC1h 31m
2026-07-26 IGO512W - Jul 26, 04:10 UTCJul 26, 04:30 UTC20m
2026-07-25 IGO5302 LKO → BOM Jul 25, 10:50 UTCJul 25, 11:05 UTC15m
2026-07-25 IGO2442 BOM → LKO Jul 25, 06:30 UTCJul 25, 06:45 UTC15m
2026-07-25 IGO433E - Jul 25, 05:00 UTCJul 25, 05:20 UTC20m
2026-07-25 IGO433E - Jul 25, 04:10 UTCJul 25, 04:20 UTC10m
2026-07-25 IGO129Y - Jul 25, 01:45 UTCJul 25, 02:05 UTC20m
2026-07-24 IGO456M HSR → DEL Jul 24, 18:20 UTCJul 24, 18:50 UTC30m
2026-07-24 IGO441 BLR → PNQ Jul 24, 15:40 UTCJul 24, 15:50 UTC10m
2026-07-24 IGO942L - Jul 24, 14:05 UTCJul 24, 14:15 UTC10m
2026-07-24 IGO374 GOI → HYD Jul 24, 11:10 UTCJul 24, 11:20 UTC10m
2026-07-24 IGO367 BHO → GOI Jul 24, 08:45 UTCJul 24, 09:25 UTC40m
2026-07-24 IGO6104 BLR → PNQ Jul 24, 06:25 UTCJul 24, 06:35 UTC10m
2026-07-24 IGO6799 IXR → BLR Jul 24, 04:55 UTCJul 24, 05:20 UTC25m
2026-07-24 IGO6799 IXR → BLR Jul 24, 03:45 UTCJul 24, 04:00 UTC15m
2026-07-23 IGO126 PAT → PNQ Jul 23, 20:00 UTCJul 23, 21:45 UTC1h 45m
2026-07-23 IGO6272 IXR → PNQ Jul 23, 15:30 UTCJul 23, 15:40 UTC10m
2026-07-23 IGO221 BLR → IXR Jul 23, 12:30 UTCJul 23, 14:20 UTC1h 50m
2026-07-23 IGO509 RDP → BLR Jul 23, 10:50 UTCJul 23, 11:00 UTC10m
2026-07-23 IGO509 RDP → BLR Jul 23, 09:00 UTCJul 23, 10:00 UTC1h 0m
2026-07-23 IGO162P - Jul 23, 06:05 UTCJul 23, 08:05 UTC2h 0m
2026-07-23 IGO275Y - Jul 23, 03:05 UTCJul 23, 04:45 UTC1h 40m
2026-07-22 IGO939C - Jul 22, 23:55 UTCJul 23, 00:10 UTC15m
2026-07-21 IGO796 MAA → BLR Jul 21, 17:05 UTCJul 21, 17:25 UTC20m
2026-07-21 IGO6077 - Jul 21, 15:10 UTCJul 21, 15:30 UTC20m
2026-07-21 IGO942L - Jul 21, 13:45 UTCJul 21, 14:05 UTC20m
2026-07-21 IGO795L - Jul 21, 10:55 UTCJul 21, 11:15 UTC20m
2026-07-21 IGO46KP - Jul 21, 01:00 UTCJul 21, 07:00 UTC6h 0m
2026-07-20 IGO41EC - Jul 20, 09:40 UTCJul 20, 13:10 UTC3h 30m
2026-07-20 IGO931P - Jul 20, 07:50 UTCJul 20, 08:10 UTC20m
2026-07-20 IGO931P - Jul 20, 03:00 UTCJul 20, 07:05 UTC4h 5m
2026-07-20 IGO413 HYD → BLR Jul 20, 01:35 UTCJul 20, 01:50 UTC15m
2026-07-19 IGO6187 - Jul 19, 19:05 UTCJul 19, 19:25 UTC20m
2026-07-19 IGO6186 BOM → BOM Jul 19, 13:00 UTCJul 19, 17:15 UTC4h 15m
2026-07-19 IGO5155 RDP → BOM Jul 19, 10:35 UTCJul 19, 10:50 UTC15m
2026-07-19 IGO5155 RDP → BOM Jul 19, 08:55 UTCJul 19, 09:20 UTC25m
2026-07-19 IGO5125 AMD → BOM Jul 19, 07:25 UTCJul 19, 08:00 UTC35m
2026-07-19 IGO5125 AMD → BOM Jul 19, 05:50 UTCJul 19, 06:00 UTC10m
2026-07-19 IGO5146 - Jul 19, 02:55 UTCJul 19, 03:40 UTC45m
2026-07-19 IGO5144 - Jul 19, 00:40 UTCJul 19, 00:55 UTC15m
2026-07-18 IGO5143 - Jul 18, 22:20 UTCJul 18, 22:40 UTC20m
2026-07-18 IGO6187 - Jul 18, 19:10 UTCJul 18, 19:35 UTC25m
2026-07-18 IGO976H - Jul 18, 16:25 UTCJul 18, 16:45 UTC20m
2026-07-18 IGO463 - Jul 18, 11:50 UTCJul 18, 12:05 UTC15m
2026-07-18 IGO6676 DEL → BOM Jul 18, 08:10 UTCJul 18, 08:35 UTC25m
2026-07-18 IGO6676 DEL → BOM Jul 18, 06:45 UTCJul 18, 07:10 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-IPS page for operator, model, and routing details .

Mode-S 8015A4 frequently asked

What is Mode-S code 8015A4?
8015A4 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IPS.
Where is Mode-S 8015A4 registered?
Mode-S code 8015A4 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8015A4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8015A4, octal 40012644, decimal 8,394,148.
What flights does 8015A4 operate?
Mode-S 8015A4 has broadcast 20 distinct callsigns, including IGO6634, IGO509, IGO501E, IGO931P, IGO6799.