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sensors Mode-S transponder

801621

ICAO 24-bit transponder address · allocated to India

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

Hex
801621
Octal
40013041
Decimal
8,394,273
Country
IN
Tail
VT-IQM
Type
A20N
No current signal · last broadcast 4h ago
Flights observed
426
Distinct callsigns
20
Country
IN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 801621.

Country allocation

The ICAO 24-bit address 801621 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
IGO5045 IndiGo Airlines 53 2026-05-29
IGO648 IndiGo Airlines 37 2026-05-28
IGO5053 IndiGo Airlines 21 2026-05-29
IGO434C - 20 2026-05-29
IGO273 IndiGo Airlines 19 2026-05-29
IGO5273 IndiGo Airlines 18 2026-05-29
IGO6436 - 7 2026-07-06
IGO605V - 6 2026-07-05
IGO6479 - 5 2026-07-10
IGO5041 - 5 2026-07-10
IGO49RD - 5 2026-07-10
IGO463F - 5 2026-07-02
IGO154H - 5 2026-07-10
IGO86DH - 4 2026-07-07
IGO73VH - 4 2026-07-06
IGO646W - 4 2026-05-23
IGO6430 - 4 2026-07-02
IGO5055 - 4 2026-07-10
IGO311E - 4 2026-07-07
IGO2453 - 4 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 IGO1032 - Jul 14, 22:00 UTCJul 14, 22:40 UTC40m
2026-07-14 IGO6764 - Jul 14, 13:05 UTCJul 14, 20:20 UTC7h 15m
2026-07-14 IGO6344 - Jul 14, 11:05 UTCJul 14, 11:45 UTC40m
2026-07-14 IGO6344 CCU → CCU Jul 14, 10:45 UTCJul 14, 10:50 UTC5m
2026-07-14 IGO6729 - Jul 14, 08:00 UTCJul 14, 08:45 UTC45m
2026-07-14 IGO127 - Jul 14, 06:15 UTCJul 14, 06:55 UTC40m
2026-07-14 IGO6793 - Jul 14, 04:30 UTCJul 14, 05:15 UTC45m
2026-07-13 IGO1466 - Jul 13, 20:00 UTCJul 14, 03:05 UTC7h 5m
2026-07-13 IGO63H - Jul 13, 17:15 UTCJul 13, 17:45 UTC30m
2026-07-13 IGO109 - Jul 13, 12:55 UTCJul 13, 13:10 UTC15m
2026-07-13 IGO302 - Jul 13, 11:00 UTCJul 13, 11:35 UTC35m
2026-07-12 IGO068 - Jul 12, 21:35 UTCJul 13, 00:50 UTC3h 15m
2026-07-12 IGO214J - Jul 12, 09:35 UTCJul 12, 12:01 UTC2h 25m
2026-07-12 IGO2137 - Jul 12, 04:30 UTCJul 12, 07:35 UTC3h 5m
2026-07-11 IGO1701 DEL → DEL Jul 11, 14:50 UTCJul 12, 02:15 UTC11h 25m
2026-07-11 IGO2453 DEL → DEL Jul 11, 08:30 UTCJul 11, 11:55 UTC3h 25m
2026-07-11 IGO69LP - Jul 11, 04:01 UTCJul 11, 07:15 UTC3h 15m
2026-07-10 IGO141P - Jul 10, 23:10 UTCJul 11, 02:40 UTC3h 30m
2026-07-10 IGO49RD - Jul 10, 18:30 UTCJul 10, 19:15 UTC45m
2026-07-10 IGO6479 - Jul 10, 16:20 UTCJul 10, 16:55 UTC35m
2026-07-10 IGO154H - Jul 10, 13:00 UTCJul 10, 14:55 UTC1h 55m
2026-07-10 IGO5041 - Jul 10, 09:50 UTCJul 10, 11:40 UTC1h 50m
2026-07-10 IGO5055 - Jul 10, 05:20 UTCJul 10, 08:40 UTC3h 20m
2026-07-10 IGO6083 DEL → DEL Jul 10, 00:55 UTCJul 10, 04:00 UTC3h 5m
2026-07-09 IGO229E - Jul 9, 15:40 UTCJul 9, 18:25 UTC2h 45m
2026-07-09 IGO5001 - Jul 9, 11:55 UTCJul 9, 14:40 UTC2h 45m
2026-07-09 IGO1154 - Jul 9, 09:40 UTCJul 9, 10:15 UTC35m
2026-07-09 IGO1154 - Jul 9, 08:55 UTCJul 9, 09:05 UTC10m
2026-07-09 IGO1153 - Jul 9, 06:05 UTCJul 9, 06:40 UTC35m
2026-07-08 IGO1346 - Jul 8, 23:25 UTCJul 9, 03:10 UTC3h 45m
2026-07-08 IGO1307 - Jul 8, 16:20 UTCJul 8, 19:55 UTC3h 35m
2026-07-08 IGO2453 DEL → DEL Jul 8, 09:20 UTCJul 8, 13:05 UTC3h 45m
2026-07-08 IGO2449 DEL → DEL Jul 8, 04:10 UTCJul 8, 07:45 UTC3h 35m
2026-07-07 IGO775E DEL → DEL Jul 7, 23:10 UTCJul 8, 02:40 UTC3h 30m
2026-07-07 IGO605F DEL → DEL Jul 7, 11:15 UTCJul 7, 14:45 UTC3h 30m
2026-07-07 IGO311E - Jul 7, 06:15 UTCJul 7, 09:20 UTC3h 5m
2026-07-07 IGO86DH - Jul 7, 01:10 UTCJul 7, 04:35 UTC3h 25m
2026-07-06 IGO6436 - Jul 6, 16:20 UTCJul 6, 19:40 UTC3h 20m
2026-07-06 IGO73VH DEL → DEL Jul 6, 11:45 UTCJul 6, 15:10 UTC3h 25m
2026-07-06 IGO6429 DEL → DEL Jul 6, 06:40 UTCJul 6, 09:35 UTC2h 55m
2026-07-05 IGO605V DEL → DEL Jul 5, 23:55 UTCJul 6, 04:55 UTC5h 0m
2026-07-05 IGO6573 DEL → DEL Jul 5, 14:20 UTCJul 5, 17:55 UTC3h 35m
2026-07-05 IGO795K - Jul 5, 07:20 UTCJul 5, 13:05 UTC5h 45m
2026-07-05 IGO305F - Jul 5, 05:00 UTCJul 5, 05:55 UTC55m
2026-07-05 IGO564E - Jul 5, 03:30 UTCJul 5, 03:55 UTC25m
2026-07-04 IGO5347 DEL → DEL Jul 4, 13:55 UTCJul 4, 17:55 UTC4h 0m
2026-07-04 IGO5927 DEL → DEL Jul 4, 07:10 UTCJul 4, 12:55 UTC5h 45m
2026-07-04 IGO5052 - Jul 4, 02:35 UTCJul 4, 06:05 UTC3h 30m
2026-07-03 IGO2453 DEL → DEL Jul 3, 08:20 UTCJul 3, 12:00 UTC3h 40m
2026-07-03 IGO2449 DEL → DEL Jul 3, 04:10 UTCJul 3, 07:05 UTC2h 55m

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

Mode-S 801621 frequently asked

What is Mode-S code 801621?
801621 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IQM.
Where is Mode-S 801621 registered?
Mode-S code 801621 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801621 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801621, octal 40013041, decimal 8,394,273.
What flights does 801621 operate?
Mode-S 801621 has broadcast 20 distinct callsigns, including IGO5045, IGO648, IGO5053, IGO434C, IGO273.