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sensors Mode-S transponder

801555

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-VKK · CESSNA 208 Caravan

Hex
801555
Octal
40012525
Decimal
8,394,069
Country
IN
Tail
VT-VKK
Type
C208
Broadcasting now · callsign IOA107 · 8,000 ft
Flights observed
206
Distinct callsigns
12
Country
IN
Last broadcast
6h ago

Current position

801555 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 801555 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 12 distinct

Callsign Airline Flights Last seen
IOA105 - 59 2026-07-14
IOA205 - 57 2026-07-14
IOA206 - 22 2026-07-12
IOA104 - 16 2026-07-13
IOA106 - 15 2026-07-08
IOA204 - 14 2026-07-12
IOA107 - 9 2026-07-12
IOA207 - 7 2026-07-12
VTVKK - 3 2026-04-18
IOA208 - 2 2026-04-23
IOA209 Iowa Airways 1 2026-04-23
IOA109 Iowa Airways 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 IOA205 - Jul 14, 03:40 UTCJul 14, 04:05 UTC25m
2026-07-14 IOA105 - Jul 14, 02:50 UTCJul 14, 03:10 UTC20m
2026-07-13 IOA205 - Jul 13, 03:40 UTCJul 13, 04:05 UTC25m
2026-07-13 IOA105 - Jul 13, 02:45 UTCJul 13, 03:10 UTC25m
2026-07-13 IOA104 - Jul 13, 00:55 UTCJul 13, 01:25 UTC30m
2026-07-12 IOA207 - Jul 12, 11:50 UTCJul 12, 12:01 UTC10m
2026-07-12 IOA107 - Jul 12, 10:55 UTCJul 12, 11:15 UTC20m
2026-07-12 IOA206 - Jul 12, 08:40 UTCJul 12, 08:50 UTC10m
2026-07-12 IOA204 - Jul 12, 04:50 UTCJul 12, 05:01 UTC10m
2026-07-12 IOA205 - Jul 12, 03:35 UTCJul 12, 04:01 UTC25m
2026-07-12 IOA105 - Jul 12, 02:45 UTCJul 12, 03:05 UTC20m
2026-07-11 IOA207 - Jul 11, 12:05 UTCJul 11, 12:15 UTC10m
2026-07-11 IOA205 - Jul 11, 04:25 UTCJul 11, 04:45 UTC20m
2026-07-11 IOA105 - Jul 11, 03:15 UTCJul 11, 03:35 UTC20m
2026-07-09 IOA107 - Jul 9, 11:10 UTCJul 9, 11:30 UTC20m
2026-07-09 IOA205 - Jul 9, 03:55 UTCJul 9, 04:20 UTC25m
2026-07-09 IOA105 - Jul 9, 03:05 UTCJul 9, 03:20 UTC15m
2026-07-08 IOA106 - Jul 8, 07:45 UTCJul 8, 08:05 UTC20m
2026-07-08 IOA205 - Jul 8, 04:20 UTCJul 8, 04:40 UTC20m
2026-07-08 IOA105 - Jul 8, 03:20 UTCJul 8, 03:45 UTC25m
2026-07-07 IOA205 - Jul 7, 04:35 UTCJul 7, 04:50 UTC15m
2026-07-07 IOA105 - Jul 7, 03:30 UTCJul 7, 03:55 UTC25m
2026-07-07 IOA104 - Jul 7, 02:35 UTCJul 7, 02:45 UTC10m
2026-07-06 IOA206 - Jul 6, 08:35 UTCJul 6, 08:45 UTC10m
2026-07-05 IOA207 - Jul 5, 11:55 UTCJul 5, 12:05 UTC10m
2026-07-04 IOA107 - Jul 4, 11:40 UTCJul 4, 11:50 UTC10m
2026-07-04 IOA205 - Jul 4, 03:50 UTCJul 4, 04:00 UTC10m
2026-07-04 IOA105 - Jul 4, 03:00 UTCJul 4, 03:15 UTC15m
2026-07-03 IOA207 - Jul 3, 11:50 UTCJul 3, 12:05 UTC15m
2026-07-03 IOA107 - Jul 3, 11:05 UTCJul 3, 11:15 UTC10m
2026-07-03 IOA205 - Jul 3, 03:10 UTCJul 3, 04:25 UTC1h 15m
2026-07-02 IOA107 - Jul 2, 11:00 UTCJul 2, 12:00 UTC1h 0m
2026-07-02 IOA205 - Jul 2, 03:50 UTCJul 2, 04:15 UTC25m
2026-07-02 IOA105 - Jul 2, 03:10 UTCJul 2, 03:20 UTC10m
2026-07-01 IOA105 - Jul 1, 06:50 UTCJul 1, 07:50 UTC1h 0m
2026-06-30 IOA205 - Jun 30, 04:55 UTCJun 30, 05:15 UTC20m
2026-06-30 IOA105 - Jun 30, 03:50 UTCJun 30, 04:25 UTC35m
2026-06-29 IOA205 - Jun 29, 06:09 UTCJun 29, 06:19 UTC10m
2026-06-29 IOA105 - Jun 29, 05:09 UTCJun 29, 05:24 UTC15m
2026-06-28 IOA205 - Jun 28, 05:34 UTCJun 28, 05:55 UTC20m
2026-06-28 IOA105 - Jun 28, 04:44 UTCJun 28, 05:04 UTC20m
2026-06-27 IOA206 - Jun 27, 08:55 UTCJun 27, 09:04 UTC10m
2026-06-27 IOA205 - Jun 27, 04:19 UTCJun 27, 04:39 UTC20m
2026-06-27 IOA105 - Jun 27, 03:30 UTCJun 27, 03:44 UTC15m
2026-06-26 IOA205 - Jun 26, 06:04 UTCJun 26, 06:15 UTC10m
2026-06-26 IOA105 - Jun 26, 05:05 UTCJun 26, 05:24 UTC20m
2026-06-25 IOA106 - Jun 25, 10:20 UTCJun 25, 10:35 UTC15m
2026-06-25 IOA204 - Jun 25, 07:49 UTCJun 25, 08:14 UTC25m
2026-06-25 IOA104 - Jun 25, 06:35 UTCJun 25, 06:50 UTC15m
2026-06-24 IOA206 - Jun 24, 10:25 UTCJun 24, 10:45 UTC20m

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

Mode-S 801555 frequently asked

What is Mode-S code 801555?
801555 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-VKK.
Where is Mode-S 801555 registered?
Mode-S code 801555 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801555 broadcasting right now?
Yes. Mode-S 801555 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801555, octal 40012525, decimal 8,394,069.
What flights does 801555 operate?
Mode-S 801555 has broadcast 12 distinct callsigns, including IOA105, IOA205, IOA206, IOA104, IOA106.