Apparatus

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sensors Mode-S transponder

801571

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-IRH · ATR-72-600

Hex
801571
Octal
40012561
Decimal
8,394,097
Country
IN
Tail
VT-IRH
Type
AT76
No current signal · last broadcast 2d ago
Flights observed
312
Distinct callsigns
20
Country
IN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 801571.

Country allocation

The ICAO 24-bit address 801571 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
IGO7256 IndiGo Airlines 15 2026-05-17
IGO7255 IndiGo Airlines 15 2026-05-17
IGO8RC - 9 2026-07-11
IGO7PC - 9 2026-07-11
IGO7573 - 9 2026-05-07
IGO7197 - 9 2026-07-11
IGO6JW - 9 2026-05-07
IGO97Y - 8 2026-05-17
IGO7729 IndiGo Airlines 8 2026-05-17
IGO7712 IndiGo Airlines 8 2026-05-21
IGO7711 IndiGo Airlines 8 2026-05-21
IGO7578 IndiGo Airlines 8 2026-05-07
IGO7577 IndiGo Airlines 8 2026-05-07
IGO7129 - 8 2026-07-08
IGO1129 IndiGo Airlines 8 2026-05-17
IGO9YC - 7 2026-05-21
IGO9HE IndiGo Airlines 7 2026-05-17
IGO7VY - 7 2026-05-07
IGO7575 - 7 2026-05-07
IGO5AL - 7 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 IGO7017 - Jul 12, 16:15 UTCJul 12, 16:35 UTC20m
2026-07-12 IGO3YC - Jul 12, 15:01 UTCJul 12, 15:25 UTC25m
2026-07-11 IGO8RC - Jul 11, 15:35 UTCJul 11, 16:15 UTC40m
2026-07-11 IGO7197 - Jul 11, 13:45 UTCJul 11, 14:15 UTC30m
2026-07-11 IGO7PC - Jul 11, 04:30 UTCJul 11, 04:40 UTC10m
2026-07-10 IGO8RC - Jul 10, 13:50 UTCJul 10, 14:30 UTC40m
2026-07-10 IGO7197 - Jul 10, 12:00 UTCJul 10, 12:20 UTC20m
2026-07-09 IGO7615 - Jul 9, 14:25 UTCJul 9, 14:50 UTC25m
2026-07-09 IGO7603 MAA → MYQ Jul 9, 12:50 UTCJul 9, 13:25 UTC35m
2026-07-09 IGO7112 - Jul 9, 11:00 UTCJul 9, 11:20 UTC20m
2026-07-08 IGO7129 - Jul 8, 05:30 UTCJul 8, 05:40 UTC10m
2026-07-08 IGO7PC - Jul 8, 04:15 UTCJul 8, 04:25 UTC10m
2026-07-07 IGO7129 - Jul 7, 05:45 UTCJul 7, 05:55 UTC10m
2026-07-04 IGO7345 - Jul 4, 03:10 UTCJul 4, 03:40 UTC30m
2026-07-04 IGO7346 - Jul 4, 00:25 UTCJul 4, 01:10 UTC45m
2026-07-03 IGO7345 - Jul 3, 02:55 UTCJul 3, 03:25 UTC30m
2026-07-03 IGO7346 - Jul 3, 00:50 UTCJul 3, 01:15 UTC25m
2026-07-02 IGO8RC - Jul 2, 13:10 UTCJul 2, 13:35 UTC25m
2026-07-02 IGO7197 MAA → CCJ Jul 2, 11:15 UTCJul 2, 11:40 UTC25m
2026-07-01 IGO8RC - Jul 1, 13:05 UTCJul 1, 13:40 UTC35m
2026-07-01 IGO7197 MAA → CCJ Jul 1, 11:15 UTCJul 1, 11:40 UTC25m
2026-06-30 IGO8RC - Jun 30, 13:10 UTCJun 30, 13:50 UTC40m
2026-06-30 IGO7197 MAA → CCJ Jun 30, 11:10 UTCJun 30, 11:45 UTC35m
2026-06-29 IGO8RC - Jun 29, 13:04 UTCJun 29, 13:39 UTC35m
2026-06-29 IGO7197 MAA → CCJ Jun 29, 11:10 UTCJun 29, 11:35 UTC25m
2026-06-26 IGO7129 - Jun 26, 05:39 UTCJun 26, 05:50 UTC10m
2026-06-25 IGO7129 VTZ → VGA Jun 25, 05:25 UTCJun 25, 05:35 UTC10m
2026-06-25 IGO7PC - Jun 25, 04:29 UTCJun 25, 04:45 UTC15m
2026-06-24 IGO7PC - Jun 24, 04:24 UTCJun 24, 04:34 UTC10m
2026-06-23 IGO7129 VTZ → VGA Jun 23, 05:59 UTCJun 23, 06:15 UTC15m
2026-06-23 IGO7PC - Jun 23, 04:19 UTCJun 23, 04:35 UTC15m
2026-06-22 IGO8RC - Jun 22, 16:05 UTCJun 22, 16:45 UTC40m
2026-06-22 IGO7197 MAA → CCJ Jun 22, 14:19 UTCJun 22, 14:40 UTC20m
2026-06-22 IGO7PC - Jun 22, 04:30 UTCJun 22, 04:40 UTC10m
2026-06-21 IGO7129 VTZ → VGA Jun 21, 05:30 UTCJun 21, 05:44 UTC15m
2026-06-21 IGO7PC - Jun 21, 04:24 UTCJun 21, 04:34 UTC10m
2026-06-20 IGO7129 VTZ → VGA Jun 20, 05:24 UTCJun 20, 05:34 UTC10m
2026-06-20 IGO7PC - Jun 20, 04:29 UTCJun 20, 04:44 UTC15m
2026-06-19 IGO7129 VTZ → VGA Jun 19, 05:30 UTCJun 19, 05:45 UTC15m
2026-06-19 IGO7PC - Jun 19, 04:19 UTCJun 19, 04:34 UTC15m
2026-06-18 IGO8RC GOI → BLR Jun 18, 13:10 UTCJun 18, 13:35 UTC25m
2026-06-18 IGO7197 MAA → CCJ Jun 18, 11:10 UTCJun 18, 11:50 UTC40m
2026-06-17 IGO8RC GOI → BLR Jun 17, 13:10 UTCJun 17, 13:35 UTC25m
2026-06-17 IGO7197 MAA → CCJ Jun 17, 11:20 UTCJun 17, 11:55 UTC35m
2026-06-14 IGO7894 - Jun 14, 06:15 UTCJun 14, 06:50 UTC35m
2026-06-14 IGO6EW - Jun 14, 03:30 UTCJun 14, 04:15 UTC45m
2026-06-14 IGO5EP - Jun 14, 01:20 UTCJun 14, 02:10 UTC50m
2026-06-13 IGO7895 - Jun 13, 13:55 UTCJun 13, 14:40 UTC45m
2026-06-12 IGO7169 NAG → AMD Jun 12, 16:20 UTCJun 12, 16:50 UTC30m
2026-06-11 IGO7169 NAG → AMD Jun 11, 16:50 UTCJun 11, 17:15 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-IRH page for operator, model, and routing details .

Mode-S 801571 frequently asked

What is Mode-S code 801571?
801571 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IRH.
Where is Mode-S 801571 registered?
Mode-S code 801571 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801571 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801571, octal 40012561, decimal 8,394,097.
What flights does 801571 operate?
Mode-S 801571 has broadcast 20 distinct callsigns, including IGO7256, IGO7255, IGO8RC, IGO7PC, IGO7573.