Apparatus

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sensors Mode-S transponder

8018B9

ICAO 24-bit transponder address · allocated to India

Hex
8018B9
Octal
40014271
Decimal
8,394,937
Country
IN
No current signal · last broadcast 59m ago
Flights observed
314
Distinct callsigns
20
Country
IN
Last broadcast
59m ago

Last known position

Most recent position reported by Mode-S 8018B9.

Country allocation

The ICAO 24-bit address 8018B9 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
IGO604H - 7 2026-05-30
IGO6047 IndiGo Airlines 6 2026-05-21
IGO5217 IndiGo Airlines 6 2026-05-29
IGO392F - 6 2026-05-29
IGO311W - 6 2026-05-21
IGO943Y - 5 2026-05-29
IGO5293 IndiGo Airlines 5 2026-05-28
IGO449 IndiGo Airlines 5 2026-05-20
IGO214C IndiGo Airlines 5 2026-05-18
IGO105W - 5 2026-05-28
IGO850 IndiGo Airlines 4 2026-05-07
IGO6054 IndiGo Airlines 4 2026-05-23
IGO5388 IndiGo Airlines 4 2026-05-28
IGO5376 IndiGo Airlines 4 2026-05-29
IGO5296 IndiGo Airlines 4 2026-05-18
IGO5294 IndiGo Airlines 4 2026-05-29
IGO451M IndiGo Airlines 4 2026-05-14
IGO356J - 4 2026-05-21
IGO203M IndiGo Airlines 4 2026-05-28
IGO127L - 4 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 IGO604H - May 30, 03:55 UTCMay 30, 04:15 UTC20m
2026-05-30 IGO604H - May 30, 03:05 UTCMay 30, 03:15 UTC10m
2026-05-29 IGO5294 BOM → BLR May 29, 23:05 UTCMay 30, 00:20 UTC1h 15m
2026-05-29 IGO5376 BLR → BOM May 29, 16:00 UTCMay 29, 16:30 UTC30m
2026-05-29 IGO5376 BLR → BOM May 29, 15:00 UTCMay 29, 15:15 UTC15m
2026-05-29 IGO943Y - May 29, 11:40 UTCMay 29, 13:05 UTC1h 25m
2026-05-29 IGO392F - May 29, 10:00 UTCMay 29, 10:20 UTC20m
2026-05-29 IGO392F - May 29, 09:05 UTCMay 29, 09:20 UTC15m
2026-05-29 IGO5217 BOM → BLR May 29, 06:45 UTCMay 29, 07:25 UTC40m
2026-05-29 IGO5217 BOM → BLR May 29, 06:10 UTCMay 29, 06:15 UTC5m
2026-05-29 IGO604H - May 29, 04:00 UTCMay 29, 04:40 UTC40m
2026-05-29 IGO604H - May 29, 03:05 UTCMay 29, 03:15 UTC10m
2026-05-28 IGO5294 BOM → BLR May 28, 23:50 UTCMay 29, 00:20 UTC30m
2026-05-28 IGO5294 BOM → BLR May 28, 23:05 UTCMay 28, 23:10 UTC5m
2026-05-28 IGO5293 BLR → BOM May 28, 21:20 UTCMay 28, 21:35 UTC15m
2026-05-28 IGO5293 BLR → BOM May 28, 20:25 UTCMay 28, 20:35 UTC10m
2026-05-28 IGO5388 BOM → BLR May 28, 17:40 UTCMay 28, 18:15 UTC35m
2026-05-28 IGO5388 BOM → BLR May 28, 17:00 UTCMay 28, 17:05 UTC5m
2026-05-28 IGO203M CCU → BOM May 28, 15:25 UTCMay 28, 15:40 UTC15m
2026-05-28 IGO105W - May 28, 10:00 UTCMay 28, 10:15 UTC15m
2026-05-28 IGO142F CCU → BOM May 28, 08:25 UTCMay 28, 08:40 UTC15m
2026-05-28 IGO5329 BOM → CCU May 28, 02:30 UTCMay 28, 02:45 UTC15m
2026-05-27 IGO5057 BBI → DEL May 27, 19:15 UTCMay 27, 19:35 UTC20m
2026-05-27 IGO5056 BOM → HYD May 27, 16:35 UTCMay 27, 16:55 UTC20m
2026-05-27 IGO5039 HYD → BOM May 27, 14:50 UTCMay 27, 15:15 UTC25m
2026-05-27 IGO737F BOM → HYD May 27, 11:55 UTCMay 27, 12:15 UTC20m
2026-05-27 IGO5099 HYD → BOM May 27, 10:25 UTCMay 27, 10:45 UTC20m
2026-05-27 IGO5178 BOM → IXC May 27, 07:05 UTCMay 27, 07:30 UTC25m
2026-05-27 IGO5174 NAG → BOM May 27, 04:59 UTCMay 27, 05:29 UTC30m
2026-05-27 IGO326Y - May 27, 01:49 UTCMay 27, 02:09 UTC20m
2026-05-26 IGO5179 ATQ → BOM May 26, 21:14 UTCMay 27, 00:34 UTC3h 20m
2026-05-26 IGO5203 PNQ → DEL May 26, 17:50 UTCMay 26, 18:05 UTC15m
2026-05-26 IGO5326 BOM → HYD May 26, 14:40 UTCMay 26, 15:00 UTC20m
2026-05-26 IGO5259 HYD → BOM May 26, 13:10 UTCMay 26, 13:29 UTC20m
2026-05-26 IGO15CF - May 26, 10:10 UTCMay 26, 10:34 UTC25m
2026-05-26 IGO416P - May 26, 08:24 UTCMay 26, 08:54 UTC30m
2026-05-26 IGO31AC - May 26, 05:15 UTCMay 26, 05:34 UTC20m
2026-05-26 IGO147W - May 26, 03:25 UTCMay 26, 03:40 UTC15m
2026-05-26 IGO5044 DEL → MAA May 26, 00:19 UTCMay 26, 00:39 UTC20m
2026-05-25 IGO5057 BBI → DEL May 25, 19:50 UTCMay 25, 20:04 UTC15m
2026-05-25 IGO5056 BOM → HYD May 25, 16:40 UTCMay 25, 17:05 UTC25m
2026-05-25 IGO5039 HYD → BOM May 25, 15:15 UTCMay 25, 15:40 UTC25m
2026-05-25 IGO737F BOM → HYD May 25, 12:15 UTCMay 25, 12:30 UTC15m
2026-05-25 IGO5099 HYD → BOM May 25, 10:10 UTCMay 25, 10:35 UTC25m
2026-05-25 IGO5178 BOM → IXC May 25, 07:10 UTCMay 25, 07:30 UTC20m
2026-05-25 IGO5174 NAG → BOM May 25, 05:10 UTCMay 25, 05:45 UTC35m
2026-05-25 IGO326Y - May 25, 01:55 UTCMay 25, 02:15 UTC20m
2026-05-24 IGO5179 ATQ → BOM May 24, 21:20 UTCMay 24, 21:40 UTC20m
2026-05-24 IGO5149 MAA → BOM May 24, 11:30 UTCMay 24, 16:30 UTC5h 0m
2026-05-24 IGO940 HYD → AYJ May 24, 04:00 UTCMay 24, 10:00 UTC6h 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.

Mode-S 8018B9 frequently asked

What is Mode-S code 8018B9?
8018B9 is an ICAO 24-bit transponder address. Allocated to India.
Where is Mode-S 8018B9 registered?
Mode-S code 8018B9 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8018B9 broadcasting right now?
No active broadcast right now. Last signal was 59m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8018B9, octal 40014271, decimal 8,394,937.
What flights does 8018B9 operate?
Mode-S 8018B9 has broadcast 20 distinct callsigns, including IGO604H, IGO6047, IGO5217, IGO392F, IGO311W.