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 Jul 26, 16:35 UTC
Flights observed
343
Distinct callsigns
20
Country
IN
Last broadcast
Jul 26, 16:35 UTC

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
IGO7345 IndiGo Airlines 10 2026-07-22
IGO7737 IndiGo Airlines 9 2026-06-09
IGO7346 IndiGo Airlines 9 2026-07-22
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 IGO5AK - Jul 26, 15:50 UTCJul 26, 16:30 UTC40m
2026-07-26 IGO3CH - Jul 26, 10:50 UTCJul 26, 11:35 UTC45m
2026-07-26 IGO7352 BBI → CCU Jul 26, 09:15 UTCJul 26, 10:05 UTC50m
2026-07-26 IGO7623 CCU → BBI Jul 26, 02:25 UTCJul 26, 03:10 UTC45m
2026-07-25 IGO7216 RPR → CCU Jul 25, 16:30 UTCJul 25, 17:20 UTC50m
2026-07-23 IGO219D - Jul 23, 15:35 UTCJul 23, 15:55 UTC20m
2026-07-22 IGO7345 IXE → MAA Jul 22, 03:05 UTCJul 22, 03:30 UTC25m
2026-07-22 IGO7346 MAA → IXE Jul 22, 00:35 UTCJul 22, 01:20 UTC45m
2026-07-20 IGO7291 MAA → VGA Jul 20, 08:45 UTCJul 20, 09:05 UTC20m
2026-07-20 IGO58J JAF → MAA Jul 20, 07:40 UTCJul 20, 07:55 UTC15m
2026-07-20 IGO1177 MAA → JAF Jul 20, 05:10 UTCJul 20, 05:25 UTC15m
2026-07-20 IGO7345 - Jul 20, 03:00 UTCJul 20, 04:00 UTC1h 0m
2026-07-20 IGO7346 MAA → IXE Jul 20, 00:50 UTCJul 20, 01:15 UTC25m
2026-07-19 IGO7345 - Jul 19, 03:10 UTCJul 19, 03:35 UTC25m
2026-07-19 IGO7346 MAA → IXE Jul 19, 01:10 UTCJul 19, 01:30 UTC20m
2026-07-18 IGO7615 - Jul 18, 13:45 UTCJul 18, 14:15 UTC30m
2026-07-18 IGO7603 MAA → MYQ Jul 18, 12:20 UTCJul 18, 12:55 UTC35m
2026-07-18 IGO7112 SXV → MAA Jul 18, 10:25 UTCJul 18, 10:45 UTC20m
2026-07-18 IGO7345 - Jul 18, 03:15 UTCJul 18, 03:40 UTC25m
2026-07-18 IGO7346 - Jul 18, 01:00 UTCJul 18, 01:25 UTC25m
2026-07-17 IGO7345 - Jul 17, 02:59 UTCJul 17, 03:25 UTC25m
2026-07-16 IGO7345 - Jul 16, 03:00 UTCJul 16, 03:30 UTC30m
2026-07-16 IGO7346 - Jul 16, 00:30 UTCJul 16, 01:15 UTC45m
2026-07-15 IGO8RC - Jul 15, 13:10 UTCJul 15, 13:35 UTC25m
2026-07-15 IGO7197 - Jul 15, 11:20 UTCJul 15, 11:45 UTC25m
2026-07-14 IGO8RC - Jul 14, 13:15 UTCJul 14, 13:30 UTC15m
2026-07-14 IGO7197 - Jul 14, 11:30 UTCJul 14, 11:50 UTC20m
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

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 Jul 26, 16:35 UTC.
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, IGO7345, IGO7737.