Apparatus

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sensors Mode-S transponder

8015FF

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-VSS · EMBRAER EMB-135 Legacy

Hex
8015FF
Octal
40012777
Decimal
8,394,239
Country
IN
Tail
VT-VSS
Type
E35L
No current signal · last broadcast 14h ago
Flights observed
100
Distinct callsigns
1
Country
IN
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 8015FF.

Country allocation

The ICAO 24-bit address 8015FF 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 1 distinct

Callsign Airline Flights Last seen
VTVSS - 100 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 VTVSS ANR → BLQ Jul 17, 11:10 UTCJul 17, 12:30 UTC1h 20m
2026-07-16 VTVSS - Jul 16, 11:54 UTCJul 16, 12:30 UTC35m
2026-07-16 VTVSS BGO → BQH Jul 16, 08:50 UTCJul 16, 10:40 UTC1h 50m
2026-07-15 VTVSS - Jul 15, 11:50 UTCJul 15, 13:40 UTC1h 50m
2026-07-15 VTVSS - Jul 15, 08:45 UTCJul 15, 10:25 UTC1h 40m
2026-07-11 VTVSS - Jul 11, 12:35 UTCJul 11, 13:05 UTC30m
2026-07-11 VTVSS - Jul 11, 01:15 UTCJul 11, 11:25 UTC10h 10m
2026-07-10 VTVSS - Jul 10, 08:10 UTCJul 11, 04:15 UTC20h 5m
2026-07-01 VTVSS - Jul 1, 16:20 UTCJul 1, 19:40 UTC3h 20m
2026-06-29 VTVSS - Jun 29, 09:00 UTCJun 29, 09:25 UTC25m
2026-06-29 VTVSS - Jun 29, 06:14 UTCJun 29, 07:55 UTC1h 40m
2026-06-29 VTVSS - Jun 29, 03:49 UTCJun 29, 04:25 UTC35m
2026-06-29 VTVSS - Jun 29, 01:50 UTCJun 29, 02:59 UTC1h 10m
2026-06-29 VTVSS - Jun 29, 00:29 UTCJun 29, 00:44 UTC15m
2026-06-26 VTVSS - Jun 26, 02:14 UTCJun 26, 02:50 UTC35m
2026-06-25 VTVSS - Jun 25, 06:09 UTCJun 25, 08:09 UTC2h 0m
2026-06-24 VTVSS - Jun 24, 05:54 UTCJun 24, 07:50 UTC1h 55m
2026-06-22 VTVSS - Jun 22, 05:40 UTCJun 22, 18:15 UTC12h 35m
2026-06-21 VTVSS - Jun 21, 04:30 UTCJun 21, 04:44 UTC15m
2026-06-21 VTVSS - Jun 21, 03:34 UTCJun 21, 04:10 UTC35m
2026-06-21 VTVSS - Jun 21, 02:50 UTCJun 21, 03:00 UTC10m
2026-06-20 VTVSS - Jun 20, 12:14 UTCJun 20, 12:59 UTC45m
2026-06-20 VTVSS - Jun 20, 08:44 UTCJun 20, 10:25 UTC1h 40m
2026-06-19 VTVSS - Jun 19, 10:39 UTCJun 19, 11:45 UTC1h 5m
2026-06-19 VTVSS - Jun 19, 07:29 UTCJun 19, 08:20 UTC50m
2026-06-18 VTVSS - Jun 18, 15:30 UTCJun 19, 05:40 UTC14h 9m
2026-06-18 VTVSS - Jun 18, 13:45 UTCJun 18, 14:20 UTC35m
2026-06-17 VTVSS - Jun 17, 18:05 UTCJun 18, 14:20 UTC20h 15m
2026-06-17 VTVSS - Jun 17, 10:20 UTCJun 17, 15:46 UTC5h 25m
2026-06-17 VTVSS - Jun 17, 05:00 UTCJun 17, 07:30 UTC2h 30m
2026-06-16 VTVSS - Jun 16, 23:55 UTCJun 17, 03:50 UTC3h 55m
2026-06-16 VTVSS - Jun 16, 19:15 UTCJun 16, 20:25 UTC1h 11m
2026-06-16 VTVSS - Jun 16, 16:45 UTCJun 16, 18:25 UTC1h 40m
2026-06-16 VTVSS - Jun 16, 13:50 UTCJun 16, 14:05 UTC15m
2026-06-16 VTVSS - Jun 16, 10:20 UTCJun 16, 10:49 UTC30m
2026-06-14 VTVSS - Jun 14, 13:20 UTCJun 14, 14:10 UTC50m
2026-06-12 VTVSS - Jun 12, 19:00 UTCJun 12, 19:40 UTC40m
2026-06-12 VTVSS - Jun 12, 17:20 UTCJun 12, 17:45 UTC25m
2026-06-12 VTVSS - Jun 12, 13:10 UTCJun 12, 13:35 UTC25m
2026-06-11 VTVSS NMI → DEL Jun 11, 08:10 UTCJun 11, 09:55 UTC1h 45m
2026-06-10 VTVSS - Jun 10, 17:10 UTCJun 11, 06:05 UTC12h 55m
2026-06-06 VTVSS - Jun 6, 13:00 UTCJun 6, 13:30 UTC30m
2026-06-06 VTVSS - Jun 6, 11:39 UTCJun 6, 11:55 UTC15m
2026-06-05 VTVSS - Jun 5, 10:40 UTCJun 5, 11:05 UTC25m
2026-06-05 VTVSS - Jun 5, 05:55 UTCJun 5, 06:10 UTC15m
2026-06-04 VTVSS - Jun 4, 08:50 UTCJun 4, 09:15 UTC25m
2026-06-04 VTVSS - Jun 4, 02:05 UTCJun 4, 02:20 UTC15m
2026-06-03 VTVSS - Jun 3, 11:45 UTCJun 3, 12:40 UTC55m
2026-06-02 VTVSS - Jun 2, 14:40 UTCJun 2, 17:10 UTC2h 30m
2026-06-02 VTVSS - Jun 2, 03:45 UTCJun 2, 05:45 UTC2h 0m

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

Mode-S 8015FF frequently asked

What is Mode-S code 8015FF?
8015FF is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-VSS.
Where is Mode-S 8015FF registered?
Mode-S code 8015FF is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8015FF broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8015FF, octal 40012777, decimal 8,394,239.
What flights does 8015FF operate?
Mode-S 8015FF has broadcast 1 distinct callsign, including VTVSS.