Apparatus

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sensors Mode-S transponder

80166C

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-TSN · BOEING 787-9 Dreamliner

Hex
80166C
Octal
40013154
Decimal
8,394,348
Country
IN
Tail
VT-TSN
Type
B789
No current signal · last broadcast Jul 26, 22:35 UTC
Flights observed
199
Distinct callsigns
20
Country
IN
Last broadcast
Jul 26, 22:35 UTC

Last known position

Most recent position reported by Mode-S 80166C.

Country allocation

The ICAO 24-bit address 80166C 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
AIC111 Air India 28 2026-07-25
AIC112 Air India 27 2026-07-26
AIC2029 Air India 23 2026-06-13
AIC2030 - 17 2026-06-13
AIC2017 Air India 16 2026-07-24
AIC2018 Air India 14 2026-07-24
AIC357 Air India 13 2026-05-28
AIC358 Air India 12 2026-05-27
AIC143 - 5 2026-07-15
AIC4310 - 4 2026-07-07
AIC4309 - 4 2026-07-07
AIC154 - 4 2026-06-18
AIC142 - 4 2026-07-15
AIC153 Air India 3 2026-06-18
AIC441 Air India 2 2026-06-20
AIC4308 Air India 2 2026-06-18
AIC4305 - 2 2026-07-05
AIC162 - 2 2026-07-14
AIC161 - 2 2026-07-13
AIC816 - 1 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AIC112 LHR → DEL Jul 26, 12:35 UTCJul 26, 22:35 UTC10h 0m
2026-07-25 AIC111 DEL → LHR Jul 25, 23:40 UTCJul 26, 09:50 UTC10h 11m
2026-07-24 AIC2018 LHR → DEL Jul 24, 20:35 UTCJul 25, 06:35 UTC10h 0m
2026-07-24 AIC2017 DEL → LHR Jul 24, 07:30 UTCJul 24, 17:30 UTC10h 0m
2026-07-23 AIC112 LHR → DEL Jul 23, 21:45 UTCJul 23, 23:35 UTC1h 50m
2026-07-23 AIC112 LHR → DEL Jul 23, 13:35 UTCJul 23, 20:30 UTC6h 55m
2026-07-23 AIC111 DEL → LHR Jul 23, 00:05 UTCJul 23, 10:10 UTC10h 5m
2026-07-22 AIC5XB HYD → DEL Jul 22, 11:45 UTCJul 22, 17:00 UTC5h 15m
2026-07-21 AIC2018 LHR → DEL Jul 21, 20:10 UTCJul 22, 03:30 UTC7h 20m
2026-07-21 AIC2017 - Jul 21, 07:40 UTCJul 21, 17:35 UTC9h 55m
2026-07-20 AIC112 - Jul 20, 12:40 UTCJul 20, 22:50 UTC10h 10m
2026-07-19 AIC111 DEL → LHR Jul 19, 23:40 UTCJul 20, 09:30 UTC9h 50m
2026-07-18 AIC2018 LHR → DEL Jul 18, 20:05 UTCJul 19, 06:20 UTC10h 15m
2026-07-18 AIC2017 - Jul 18, 07:20 UTCJul 18, 17:15 UTC9h 55m
2026-07-17 AIC112 - Jul 17, 14:20 UTCJul 18, 00:19 UTC10h 0m
2026-07-16 AIC111 DEL → LHR Jul 16, 23:55 UTCJul 17, 10:10 UTC10h 15m
2026-07-15 AIC142 - Jul 15, 19:45 UTCJul 16, 05:25 UTC9h 40m
2026-07-15 AIC143 - Jul 15, 13:50 UTCJul 15, 17:10 UTC3h 20m
2026-07-15 AIC143 - Jul 15, 07:20 UTCJul 15, 13:10 UTC5h 50m
2026-07-14 AIC162 - Jul 14, 10:00 UTCJul 14, 20:00 UTC10h 0m
2026-07-13 AIC161 DEL → LHR Jul 13, 19:40 UTCJul 14, 05:45 UTC10h 5m
2026-07-09 AIC2018 - Jul 9, 19:55 UTCJul 10, 05:45 UTC9h 50m
2026-07-09 AIC2017 - Jul 9, 08:10 UTCJul 9, 17:20 UTC9h 10m
2026-07-09 AIC2017 - Jul 9, 07:20 UTCJul 9, 07:35 UTC15m
2026-07-08 AIC112 - Jul 8, 12:40 UTCJul 8, 22:15 UTC9h 35m
2026-07-07 AIC111 - Jul 7, 23:50 UTCJul 8, 09:50 UTC10h 0m
2026-07-07 AIC4310 - Jul 7, 15:50 UTCJul 7, 19:00 UTC3h 10m
2026-07-07 AIC4309 - Jul 7, 12:55 UTCJul 7, 13:05 UTC10m
2026-07-07 AIC4309 - Jul 7, 10:10 UTCJul 7, 11:25 UTC1h 15m
2026-07-06 AIC2018 - Jul 6, 20:40 UTCJul 7, 06:25 UTC9h 45m
2026-07-06 AIC2017 DEL → LHR Jul 6, 08:30 UTCJul 6, 18:45 UTC10h 15m
2026-07-05 AIC4306 - Jul 5, 21:50 UTCJul 6, 01:00 UTC3h 10m
2026-07-05 AIC4305 - Jul 5, 18:10 UTCJul 5, 18:40 UTC30m
2026-07-05 AIC4305 - Jul 5, 15:30 UTCJul 5, 17:05 UTC1h 35m
2026-07-04 AIC2018 - Jul 4, 20:00 UTCJul 5, 06:05 UTC10h 5m
2026-07-04 AIC2017 DEL → LHR Jul 4, 13:50 UTCJul 4, 17:40 UTC3h 50m
2026-07-04 AIC2017 DEL → LHR Jul 4, 07:25 UTCJul 4, 13:45 UTC6h 20m
2026-07-03 AIC142 - Jul 3, 19:10 UTCJul 4, 04:50 UTC9h 40m
2026-07-03 AIC143 DEL → CDG Jul 3, 07:05 UTCJul 3, 16:55 UTC9h 50m
2026-07-02 AIC112 LHR → DEL Jul 2, 13:45 UTCJul 2, 23:20 UTC9h 35m
2026-07-02 AIC111 - Jul 2, 00:35 UTCJul 2, 10:35 UTC10h 0m
2026-06-29 AIC4310 - Jun 29, 15:54 UTCJun 29, 19:09 UTC3h 15m
2026-06-29 AIC4309 - Jun 29, 10:04 UTCJun 29, 13:00 UTC2h 55m
2026-06-28 AIC2018 - Jun 28, 20:09 UTCJun 29, 06:09 UTC10h 0m
2026-06-28 AIC2017 DEL → LHR Jun 28, 07:29 UTCJun 28, 17:25 UTC9h 55m
2026-06-27 AIC112 LHR → DEL Jun 27, 13:44 UTCJun 27, 23:25 UTC9h 40m
2026-06-26 AIC111 DEL → LHR Jun 26, 23:49 UTCJun 27, 10:05 UTC10h 15m
2026-06-26 AIC2426 - Jun 26, 13:55 UTCJun 26, 15:39 UTC1h 45m
2026-06-23 AIC7QQ DEL → BOM Jun 23, 13:55 UTCJun 23, 15:40 UTC1h 45m
2026-06-22 AIC2018 - Jun 22, 20:30 UTCJun 23, 06:09 UTC9h 40m

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

Mode-S 80166C frequently asked

What is Mode-S code 80166C?
80166C is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-TSN.
Where is Mode-S 80166C registered?
Mode-S code 80166C is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 80166C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 80166C, octal 40013154, decimal 8,394,348.
What flights does 80166C operate?
Mode-S 80166C has broadcast 20 distinct callsigns, including AIC111, AIC112, AIC2029, AIC2030, AIC2017.