Apparatus

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sensors Mode-S transponder

801573

ICAO 24-bit transponder address · allocated to India

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

Hex
801573
Octal
40012563
Decimal
8,394,099
Country
IN
Tail
VT-IRF
Type
AT76
No current signal · last broadcast 1d ago
Flights observed
316
Distinct callsigns
20
Country
IN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 801573.

Country allocation

The ICAO 24-bit address 801573 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
IGO7005 - 12 2026-06-22
IGO7231 - 11 2026-06-22
IGO7006 - 11 2026-06-22
IGO7737 IndiGo Airlines 9 2026-06-09
IGO7PE - 8 2026-06-10
IGO7233 IndiGo Airlines 8 2026-06-08
IGO7232 IndiGo Airlines 8 2026-06-10
IGO8WT - 7 2026-06-02
IGO7WA - 7 2026-06-21
IGO7407 IndiGo Airlines 7 2026-06-02
IGO7166 IndiGo Airlines 7 2026-06-01
IGO5CC - 7 2026-06-01
IGO1EH - 7 2026-06-21
IGO7HC IndiGo Airlines 6 2026-06-02
IGO7CW IndiGo Airlines 6 2026-05-30
IGO7736 IndiGo Airlines 6 2026-06-02
IGO7227 IndiGo Airlines 6 2026-06-08
IGO7203 IndiGo Airlines 6 2026-05-30
IGO7163 IndiGo Airlines 6 2026-06-01
IGO4VP - 6 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 IGO7345 - Jul 13, 02:55 UTCJul 13, 03:20 UTC25m
2026-07-13 IGO7346 - Jul 13, 01:01 UTCJul 13, 01:20 UTC20m
2026-07-12 IGO7345 - Jul 12, 02:55 UTCJul 12, 03:20 UTC25m
2026-07-12 IGO7346 - Jul 12, 00:45 UTCJul 12, 01:10 UTC25m
2026-07-11 IGO7EK - Jul 11, 11:30 UTCJul 11, 11:50 UTC20m
2026-07-11 IGO7335 - Jul 11, 09:35 UTCJul 11, 10:05 UTC30m
2026-07-09 IGO7606 TCR → MAA Jul 9, 16:15 UTCJul 9, 16:30 UTC15m
2026-07-09 IGO7345 - Jul 9, 03:05 UTCJul 9, 03:30 UTC25m
2026-07-09 IGO7346 - Jul 9, 00:55 UTCJul 9, 01:20 UTC25m
2026-07-08 IGO7345 - Jul 8, 02:50 UTCJul 8, 03:15 UTC25m
2026-07-08 IGO7346 - Jul 8, 00:45 UTCJul 8, 01:05 UTC20m
2026-06-28 IGO7129 - Jun 28, 05:20 UTCJun 28, 05:29 UTC10m
2026-06-27 IGO7129 - Jun 27, 05:39 UTCJun 27, 05:49 UTC10m
2026-06-27 IGO7PC - Jun 27, 04:39 UTCJun 27, 04:49 UTC10m
2026-06-25 IGO7615 - Jun 25, 13:55 UTCJun 25, 14:20 UTC25m
2026-06-25 IGO7603 MAA → MYQ Jun 25, 12:44 UTCJun 25, 13:05 UTC20m
2026-06-25 IGO7112 - Jun 25, 10:25 UTCJun 25, 10:45 UTC20m
2026-06-25 IGO7549 - Jun 25, 01:09 UTCJun 25, 01:24 UTC15m
2026-06-24 IGO1EJ - Jun 24, 04:34 UTCJun 24, 04:50 UTC15m
2026-06-24 IGO7225 - Jun 24, 02:45 UTCJun 24, 03:04 UTC20m
2026-06-23 IGO7445 - Jun 23, 10:29 UTCJun 23, 10:55 UTC25m
2026-06-23 IGO4HC - Jun 23, 08:45 UTCJun 23, 09:05 UTC20m
2026-06-23 IGO2CY - Jun 23, 05:39 UTCJun 23, 05:49 UTC10m
2026-06-23 IGO6WK - Jun 23, 04:05 UTCJun 23, 04:25 UTC20m
2026-06-23 IGO7171 - Jun 23, 01:35 UTCJun 23, 02:09 UTC35m
2026-06-22 IGO7231 - Jun 22, 11:44 UTCJun 22, 12:00 UTC15m
2026-06-22 IGO7006 - Jun 22, 09:10 UTCJun 22, 10:19 UTC1h 10m
2026-06-22 IGO7006 - Jun 22, 07:54 UTCJun 22, 08:15 UTC20m
2026-06-22 IGO7005 - Jun 22, 04:40 UTCJun 22, 04:54 UTC15m
2026-06-22 IGO7005 - Jun 22, 02:54 UTCJun 22, 03:54 UTC1h 0m
2026-06-21 IGO7WA - Jun 21, 16:25 UTCJun 21, 16:54 UTC30m
2026-06-21 IGO1EH - Jun 21, 14:19 UTCJun 21, 14:44 UTC25m
2026-06-21 IGO7VK - Jun 21, 07:25 UTCJun 21, 07:49 UTC25m
2026-06-21 IGO2KP - Jun 21, 05:10 UTCJun 21, 05:44 UTC35m
2026-06-21 IGO7245 - Jun 21, 03:44 UTCJun 21, 04:10 UTC25m
2026-06-21 IGO7236 - Jun 21, 01:45 UTCJun 21, 02:15 UTC30m
2026-06-20 IGO7WA - Jun 20, 16:44 UTCJun 20, 17:19 UTC35m
2026-06-20 IGO1EH - Jun 20, 14:24 UTCJun 20, 14:59 UTC35m
2026-06-10 IGO7232 RJA → BLR Jun 10, 15:40 UTCJun 10, 15:55 UTC15m
2026-06-10 IGO7231 BLR → RJA Jun 10, 11:50 UTCJun 10, 12:05 UTC15m
2026-06-10 IGO7PE - Jun 10, 09:50 UTCJun 10, 10:00 UTC10m
2026-06-10 IGO3JY - Jun 10, 03:40 UTCJun 10, 04:15 UTC35m
2026-06-10 IGO1VP BLR → IXG Jun 10, 01:20 UTCJun 10, 01:45 UTC25m
2026-06-09 IGO7231 BLR → RJA Jun 9, 11:55 UTCJun 9, 12:10 UTC15m
2026-06-09 IGO7PE - Jun 9, 09:30 UTCJun 9, 09:50 UTC20m
2026-06-09 IGO7737 BLR → TIR Jun 9, 08:00 UTCJun 9, 08:15 UTC15m
2026-06-08 IGO7232 RJA → BLR Jun 8, 15:40 UTCJun 8, 16:00 UTC20m
2026-06-08 IGO7231 BLR → RJA Jun 8, 11:45 UTCJun 8, 12:05 UTC20m
2026-06-08 IGO7PE - Jun 8, 09:30 UTCJun 8, 09:55 UTC25m
2026-06-08 IGO7737 BLR → TIR Jun 8, 08:00 UTCJun 8, 08:10 UTC10m

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

Mode-S 801573 frequently asked

What is Mode-S code 801573?
801573 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IRF.
Where is Mode-S 801573 registered?
Mode-S code 801573 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801573 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 801573, octal 40012563, decimal 8,394,099.
What flights does 801573 operate?
Mode-S 801573 has broadcast 20 distinct callsigns, including IGO7005, IGO7231, IGO7006, IGO7737, IGO7PE.