Apparatus

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sensors Mode-S transponder

8003B1

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-AXM · BOEING 737-800

Hex
8003B1
Octal
40001661
Decimal
8,389,553
Country
IN
Tail
VT-AXM
Type
B738
No current signal · last broadcast 2h ago
Flights observed
280
Distinct callsigns
20
Country
IN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 8003B1.

Country allocation

The ICAO 24-bit address 8003B1 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
AXB612 Air India Express 13 2026-06-20
AXB745 - 11 2026-07-14
AXB670 Air India Express 10 2026-06-20
AXB2963 - 9 2026-06-29
AXB847 - 8 2026-07-09
AXB562 Air India Express 8 2026-07-01
AXB2892 - 8 2026-06-29
AXB1781 Air India Express 7 2026-05-11
AXB669 Air India Express 6 2026-06-19
AXB611 Air India Express 6 2026-06-20
AXB550 Air India Express 6 2026-06-13
AXB2980 - 6 2026-06-29
AXB1367 - 6 2026-06-30
AXB690 - 5 2026-06-23
AXB561 Air India Express 5 2026-06-30
AXB546 Air India Express 5 2026-06-10
AXB545 Air India Express 5 2026-06-10
AXB542 Air India Express 5 2026-06-13
AXB689 - 4 2026-06-23
AXB6083 Air India Express 4 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AXB742 - Jul 14, 17:45 UTCJul 14, 18:10 UTC25m
2026-07-14 AXB741 - Jul 14, 07:20 UTCJul 14, 16:05 UTC8h 45m
2026-07-14 AXB745 - Jul 14, 05:00 UTCJul 14, 05:05 UTC5m
2026-07-13 AXB711 - Jul 13, 07:01 UTCJul 13, 13:00 UTC6h 0m
2026-07-12 AXB745 - Jul 12, 15:10 UTCJul 13, 05:05 UTC13h 55m
2026-07-12 AXB745 - Jul 12, 07:15 UTCJul 13, 05:05 UTC21h 50m
2026-07-12 AXB745 - Jul 12, 05:01 UTCJul 12, 05:30 UTC30m
2026-07-11 AXB745 DST → SHJ Jul 11, 09:05 UTCJul 12, 05:30 UTC20h 25m
2026-07-11 AXB747 - Jul 11, 06:40 UTCJul 11, 07:05 UTC25m
2026-07-10 AXB5310 - Jul 10, 08:15 UTCJul 10, 08:50 UTC35m
2026-07-09 AXB848 - Jul 9, 22:35 UTCJul 10, 04:35 UTC6h 0m
2026-07-09 AXB847 - Jul 9, 19:20 UTCJul 9, 20:40 UTC1h 20m
2026-07-09 AXB847 - Jul 9, 01:20 UTCJul 9, 20:40 UTC19h 20m
2026-07-08 AXB847 - Jul 8, 22:25 UTCJul 9, 20:40 UTC22h 15m
2026-07-08 AXB847 - Jul 8, 17:25 UTCJul 8, 20:25 UTC3h 0m
2026-07-08 AXB847 - Jul 8, 01:40 UTCJul 8, 20:25 UTC18h 45m
2026-07-07 AXB847 - Jul 7, 23:35 UTCJul 8, 20:25 UTC20h 50m
2026-07-07 AXB815 - Jul 7, 20:35 UTCJul 7, 21:00 UTC25m
2026-07-06 AXB818 - Jul 6, 15:05 UTCJul 6, 15:25 UTC20m
2026-07-06 AXB817 - Jul 6, 12:00 UTCJul 6, 12:35 UTC35m
2026-07-06 AXB816 - Jul 6, 00:15 UTCJul 6, 02:10 UTC1h 55m
2026-07-05 AXB815 - Jul 5, 19:00 UTCJul 5, 21:15 UTC2h 15m
2026-07-05 AXB815 - Jul 5, 00:35 UTCJul 5, 21:15 UTC20h 40m
2026-07-04 AXB848 - Jul 4, 22:20 UTCJul 5, 21:15 UTC22h 55m
2026-07-04 AXB848 - Jul 4, 21:55 UTCJul 5, 19:05 UTC21h 10m
2026-07-04 AXB847 - Jul 4, 17:20 UTCJul 4, 20:05 UTC2h 45m
2026-07-03 AXB5302 - Jul 3, 16:50 UTCJul 3, 17:25 UTC35m
2026-07-01 AXB530 - Jul 1, 19:55 UTCJul 1, 20:15 UTC20m
2026-07-01 AXB530 - Jul 1, 16:15 UTCJul 1, 16:35 UTC20m
2026-07-01 AXB529 - Jul 1, 14:05 UTCJul 1, 14:35 UTC30m
2026-07-01 AXB529 - Jul 1, 10:55 UTCJul 1, 11:10 UTC15m
2026-07-01 AXB562 SHJ → TRV Jul 1, 02:30 UTCJul 1, 03:00 UTC30m
2026-06-30 AXB562 SHJ → TRV Jun 30, 22:55 UTCJun 30, 23:20 UTC25m
2026-06-30 AXB561 TRV → SHJ Jun 30, 20:25 UTCJun 30, 20:50 UTC25m
2026-06-30 AXB561 TRV → SHJ Jun 30, 17:10 UTCJun 30, 17:25 UTC15m
2026-06-30 AXB1367 - Jun 30, 14:25 UTCJun 30, 15:20 UTC55m
2026-06-30 AXB1368 IDR → BLR Jun 30, 13:05 UTCJun 30, 13:20 UTC15m
2026-06-30 AXB2462 - Jun 30, 06:25 UTCJun 30, 06:35 UTC10m
2026-06-30 AXB2462 - Jun 30, 04:20 UTCJun 30, 05:00 UTC40m
2026-06-30 AXB2461 - Jun 30, 02:20 UTCJun 30, 02:50 UTC30m
2026-06-30 AXB2461 - Jun 30, 00:35 UTCJun 30, 00:49 UTC15m
2026-06-29 AXB2963 - Jun 29, 13:49 UTCJun 29, 13:59 UTC10m
2026-06-29 AXB2963 - Jun 29, 11:04 UTCJun 29, 12:09 UTC1h 5m
2026-06-29 AXB2963 - Jun 29, 09:05 UTCJun 29, 09:40 UTC35m
2026-06-29 AXB2892 - Jun 29, 07:30 UTCJun 29, 08:09 UTC40m
2026-06-29 AXB2892 - Jun 29, 05:24 UTCJun 29, 05:59 UTC35m
2026-06-29 AXB2892 - Jun 29, 03:49 UTCJun 29, 04:00 UTC10m
2026-06-29 AXB2980 - Jun 29, 01:50 UTCJun 29, 02:45 UTC55m
2026-06-28 AXB534 - Jun 28, 13:04 UTCJun 28, 17:04 UTC4h 0m
2026-06-28 AXB533 - Jun 28, 10:55 UTCJun 28, 11:25 UTC30m

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

Mode-S 8003B1 frequently asked

What is Mode-S code 8003B1?
8003B1 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-AXM.
Where is Mode-S 8003B1 registered?
Mode-S code 8003B1 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8003B1 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8003B1, octal 40001661, decimal 8,389,553.
What flights does 8003B1 operate?
Mode-S 8003B1 has broadcast 20 distinct callsigns, including AXB612, AXB745, AXB670, AXB2963, AXB847.