Apparatus

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sensors Mode-S transponder

801638

ICAO 24-bit transponder address · allocated to India

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

Hex
801638
Octal
40013070
Decimal
8,394,296
Country
IN
Tail
VT-RTI
Type
A20N
No current signal · last broadcast 1h ago
Flights observed
491
Distinct callsigns
20
Country
IN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 801638.

Country allocation

The ICAO 24-bit address 801638 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
AXB2817 - 17 2026-07-14
AXB2176 - 15 2026-07-10
AXB1521 Air India Express 15 2026-05-16
AXB1996 Air India Express 13 2026-05-16
AXB1256 Air India Express 12 2026-05-14
AXB2816 - 10 2026-07-14
AXB2017 Air India Express 10 2026-06-14
AXB1543 - 10 2026-07-13
AXB1491 Air India Express 10 2026-05-24
AXB1259 Air India Express 10 2026-04-30
AXB2053 - 9 2026-07-10
AXB1537 Air India Express 9 2026-05-09
AXB1953 Air India Express 8 2026-06-09
AXB1522 Air India Express 8 2026-05-16
AXB1379 - 8 2026-07-13
AXB2793 Air India Express 7 2026-05-09
AXB2782 Air India Express 7 2026-05-16
AXB1752 Air India Express 7 2026-05-16
AXB1532 Air India Express 7 2026-05-15
AXB1527 - 7 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AXB284 - Jul 14, 20:15 UTCJul 14, 22:00 UTC1h 45m
2026-07-14 AXB283 - Jul 14, 15:25 UTCJul 14, 17:55 UTC2h 30m
2026-07-14 AXB2913 - Jul 14, 12:00 UTCJul 14, 12:15 UTC15m
2026-07-14 AXB2817 - Jul 14, 09:00 UTCJul 14, 09:10 UTC10m
2026-07-14 AXB2816 - Jul 14, 03:45 UTCJul 14, 08:05 UTC4h 20m
2026-07-13 AXB1379 - Jul 13, 16:50 UTCJul 13, 17:00 UTC10m
2026-07-13 AXB1543 - Jul 13, 13:15 UTCJul 13, 13:25 UTC10m
2026-07-13 AXB2817 - Jul 13, 08:45 UTCJul 13, 08:55 UTC10m
2026-07-13 AXB2816 - Jul 13, 03:45 UTCJul 13, 07:55 UTC4h 10m
2026-07-12 AXB932 - Jul 12, 21:00 UTCJul 13, 01:20 UTC4h 20m
2026-07-12 AXB931 - Jul 12, 15:25 UTCJul 12, 19:45 UTC4h 20m
2026-07-12 AXB2706 - Jul 12, 02:15 UTCJul 12, 03:15 UTC1h 0m
2026-07-11 AXB284 - Jul 11, 21:30 UTCJul 11, 23:40 UTC2h 10m
2026-07-11 AXB283 - Jul 11, 15:20 UTCJul 11, 17:50 UTC2h 30m
2026-07-11 AXB2913 - Jul 11, 12:20 UTCJul 11, 12:35 UTC15m
2026-07-11 AXB2817 - Jul 11, 08:45 UTCJul 11, 09:00 UTC15m
2026-07-11 AXB2816 - Jul 11, 03:50 UTCJul 11, 07:55 UTC4h 5m
2026-07-10 AXB2176 - Jul 10, 13:05 UTCJul 10, 13:15 UTC10m
2026-07-10 AXB2176 - Jul 10, 11:40 UTCJul 10, 12:10 UTC30m
2026-07-10 AXB2053 - Jul 10, 08:40 UTCJul 10, 10:20 UTC1h 40m
2026-07-10 AXB2706 - Jul 10, 02:15 UTCJul 10, 02:50 UTC35m
2026-07-09 AXB284 - Jul 9, 20:35 UTCJul 9, 23:05 UTC2h 30m
2026-07-09 AXB283 - Jul 9, 15:25 UTCJul 9, 16:20 UTC55m
2026-07-09 AXB2913 - Jul 9, 12:15 UTCJul 9, 12:25 UTC10m
2026-07-09 AXB2718 - Jul 9, 10:20 UTCJul 9, 10:50 UTC30m
2026-07-09 AXB2712 - Jul 9, 08:00 UTCJul 9, 08:10 UTC10m
2026-07-08 AXB144 - Jul 8, 18:55 UTCJul 8, 20:50 UTC1h 55m
2026-07-08 AXB143 - Jul 8, 09:50 UTCJul 8, 16:40 UTC6h 50m
2026-07-08 AXB2712 - Jul 8, 08:00 UTCJul 8, 08:15 UTC15m
2026-07-07 AXB144 - Jul 7, 19:15 UTCJul 7, 21:40 UTC2h 25m
2026-07-07 AXB143 - Jul 7, 14:25 UTCJul 7, 15:20 UTC55m
2026-07-07 AXB2458 - Jul 7, 10:10 UTCJul 7, 11:25 UTC1h 15m
2026-07-07 AXB1971 - Jul 7, 07:40 UTCJul 7, 07:50 UTC10m
2026-07-06 AXB866 - Jul 6, 23:40 UTCJul 7, 03:00 UTC3h 20m
2026-07-06 AXB865 - Jul 6, 17:55 UTCJul 6, 21:10 UTC3h 15m
2026-07-06 AXB2176 IXR → BLR Jul 6, 13:25 UTCJul 6, 13:35 UTC10m
2026-07-06 AXB2176 IXR → BLR Jul 6, 11:50 UTCJul 6, 12:30 UTC40m
2026-07-06 AXB2053 - Jul 6, 08:45 UTCJul 6, 09:00 UTC15m
2026-07-04 AXB2817 - Jul 4, 08:40 UTCJul 4, 08:55 UTC15m
2026-07-04 AXB2816 - Jul 4, 03:50 UTCJul 4, 04:05 UTC15m
2026-07-03 AXB1168 COK → BLR Jul 3, 12:55 UTCJul 3, 13:05 UTC10m
2026-07-03 AXB1385 - Jul 3, 05:40 UTCJul 3, 11:25 UTC5h 45m
2026-07-03 AXB2706 - Jul 3, 02:10 UTCJul 3, 02:40 UTC30m
2026-07-02 AXB284 - Jul 2, 20:45 UTCJul 2, 23:15 UTC2h 30m
2026-07-02 AXB283 - Jul 2, 16:00 UTCJul 2, 18:30 UTC2h 30m
2026-07-02 AXB1090 - Jul 2, 08:00 UTCJul 2, 08:25 UTC25m
2026-07-01 AXB1042 - Jul 1, 16:15 UTCJul 1, 18:25 UTC2h 10m
2026-07-01 AXB1041 - Jul 1, 13:05 UTCJul 1, 15:00 UTC1h 55m
2026-07-01 AXB1074 DEL → DEL Jul 1, 06:20 UTCJul 1, 10:45 UTC4h 25m
2026-07-01 AXB1672 - Jul 1, 03:10 UTCJul 1, 05:00 UTC1h 50m

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

Mode-S 801638 frequently asked

What is Mode-S code 801638?
801638 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-RTI.
Where is Mode-S 801638 registered?
Mode-S code 801638 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801638 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801638, octal 40013070, decimal 8,394,296.
What flights does 801638 operate?
Mode-S 801638 has broadcast 20 distinct callsigns, including AXB2817, AXB2176, AXB1521, AXB1996, AXB1256.