Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

800B81

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-SLB · BOEING 737-700

Hex
800B81
Octal
40005601
Decimal
8,391,553
Country
IN
Tail
VT-SLB
Type
B737
No current signal · last broadcast 3h ago
Flights observed
224
Distinct callsigns
20
Country
IN
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 800B81.

Country allocation

The ICAO 24-bit address 800B81 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
SEJ126 Spicejet 20 2026-05-25
SEJ122 Spicejet 18 2026-05-28
SEJ495 - 17 2026-05-27
SEJ478 Spicejet 17 2026-05-24
SEJ124 Spicejet 16 2026-05-28
SEJ473 Spicejet 15 2026-05-24
SEJ496 - 14 2026-05-27
SEJ128 Spicejet 14 2026-05-25
SEJ106 Spicejet 13 2026-05-27
SEJ472 Spicejet 11 2026-05-23
SEJ105 Spicejet 11 2026-05-27
SEJ471 Spicejet 10 2026-05-28
SEJ121 Spicejet 5 2026-05-27
SEJ200 Spicejet 4 2026-05-29
SEJ123 Spicejet 4 2026-05-09
SEJ475 Spicejet 3 2026-05-23
SEJ199 Spicejet 3 2026-05-26
SEJ164 Spicejet 3 2026-05-22
SEJ127 Spicejet 3 2026-05-16
SEJ125 Spicejet 3 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SEJ9121 - May 30, 01:50 UTCMay 30, 02:25 UTC35m
2026-05-29 SEJ200 BLR → DEL May 29, 22:20 UTCMay 30, 00:40 UTC2h 20m
2026-05-29 SEJ209 DEL → BLR May 29, 20:45 UTCMay 29, 20:55 UTC10m
2026-05-29 SEJ209 DEL → BLR May 29, 18:35 UTCMay 29, 19:10 UTC35m
2026-05-29 SEJ9976 - May 29, 07:10 UTCMay 29, 08:30 UTC1h 20m
2026-05-28 SEJ471 DEL → GOP May 28, 11:55 UTCMay 28, 12:50 UTC55m
2026-05-28 SEJ124 IXL → DEL May 28, 05:15 UTCMay 28, 08:35 UTC3h 20m
2026-05-28 SEJ122 IXL → DEL May 28, 00:45 UTCMay 28, 03:55 UTC3h 10m
2026-05-27 SEJ106 BOM → DEL May 27, 20:55 UTCMay 27, 21:40 UTC45m
2026-05-27 SEJ105 DEL → BOM May 27, 17:05 UTCMay 27, 18:30 UTC1h 25m
2026-05-27 SEJ496 - May 27, 10:40 UTCMay 27, 12:05 UTC1h 25m
2026-05-27 SEJ495 - May 27, 08:30 UTCMay 27, 09:40 UTC1h 10m
2026-05-27 SEJ121 DEL → IXL May 27, 02:14 UTCMay 27, 05:35 UTC3h 20m
2026-05-26 SEJ106 BOM → DEL May 26, 20:45 UTCMay 26, 22:35 UTC1h 50m
2026-05-26 SEJ105 DEL → BOM May 26, 17:50 UTCMay 26, 19:20 UTC1h 30m
2026-05-26 SEJ200 BLR → DEL May 26, 15:39 UTCMay 26, 16:24 UTC45m
2026-05-26 SEJ200 BLR → DEL May 26, 13:54 UTCMay 26, 14:14 UTC20m
2026-05-26 SEJ199 IXB → DEL May 26, 11:24 UTCMay 26, 11:39 UTC15m
2026-05-26 SEJ199 IXB → DEL May 26, 09:19 UTCMay 26, 09:55 UTC35m
2026-05-26 SEJ124 IXL → DEL May 26, 05:15 UTCMay 26, 08:10 UTC2h 55m
2026-05-26 SEJ122 IXL → DEL May 26, 01:00 UTCMay 26, 03:55 UTC2h 55m
2026-05-25 SEJ106 BOM → DEL May 25, 21:24 UTCMay 25, 23:10 UTC1h 45m
2026-05-25 SEJ105 DEL → BOM May 25, 18:35 UTCMay 25, 20:09 UTC1h 34m
2026-05-25 SEJ200 BLR → DEL May 25, 15:00 UTCMay 25, 17:25 UTC2h 25m
2026-05-25 SEJ199 IXB → DEL May 25, 10:50 UTCMay 25, 11:20 UTC30m
2026-05-25 SEJ126 IXL → DEL May 25, 06:00 UTCMay 25, 09:15 UTC3h 15m
2026-05-25 SEJ128 IXL → DEL May 25, 02:45 UTCMay 25, 03:30 UTC45m
2026-05-24 SEJ478 PAT → DEL May 24, 16:05 UTCMay 24, 17:45 UTC1h 40m
2026-05-24 SEJ473 DEL → SXR May 24, 13:45 UTCMay 24, 14:55 UTC1h 10m
2026-05-24 SEJ496 - May 24, 10:40 UTCMay 24, 12:00 UTC1h 20m
2026-05-24 SEJ495 - May 24, 08:15 UTCMay 24, 09:20 UTC1h 5m
2026-05-24 SEJ126 IXL → DEL May 24, 04:10 UTCMay 24, 07:00 UTC2h 50m
2026-05-23 SEJ128 IXL → DEL May 23, 23:40 UTCMay 24, 02:45 UTC3h 5m
2026-05-23 SEJ106 BOM → DEL May 23, 20:05 UTCMay 23, 21:45 UTC1h 40m
2026-05-23 SEJ105 DEL → BOM May 23, 17:10 UTCMay 23, 18:45 UTC1h 36m
2026-05-23 SEJ472 GOP → DEL May 23, 12:20 UTCMay 23, 13:25 UTC1h 5m
2026-05-23 SEJ471 DEL → GOP May 23, 10:15 UTCMay 23, 11:15 UTC1h 0m
2026-05-23 SEJ475 SXR → DEL May 23, 06:05 UTCMay 23, 09:05 UTC3h 0m
2026-05-23 SEJ122 IXL → DEL May 23, 01:00 UTCMay 23, 04:15 UTC3h 14m
2026-05-22 SEJ164 BOM → DEL May 22, 19:00 UTCMay 22, 20:50 UTC1h 50m
2026-05-22 SEJ162 DEL → SXR May 22, 16:55 UTCMay 22, 17:15 UTC20m
2026-05-22 SEJ162 DEL → SXR May 22, 15:15 UTCMay 22, 15:50 UTC35m
2026-05-22 SEJ495 - May 22, 09:15 UTCMay 22, 12:45 UTC3h 30m
2026-05-22 SEJ126 IXL → DEL May 22, 04:10 UTCMay 22, 07:10 UTC3h 0m
2026-05-21 SEJ128 IXL → DEL May 21, 23:55 UTCMay 22, 02:40 UTC2h 45m
2026-05-21 SEJ478 PAT → DEL May 21, 21:05 UTCMay 21, 22:20 UTC1h 15m
2026-05-21 SEJ473 DEL → SXR May 21, 19:00 UTCMay 21, 19:55 UTC55m
2026-05-21 SEJ495 - May 21, 08:50 UTCMay 21, 12:30 UTC3h 40m
2026-05-21 SEJ126 IXL → DEL May 21, 03:30 UTCMay 21, 06:35 UTC3h 5m
2026-05-20 SEJ128 IXL → DEL May 20, 23:25 UTCMay 21, 02:15 UTC2h 50m

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

Mode-S 800B81 frequently asked

What is Mode-S code 800B81?
800B81 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-SLB.
Where is Mode-S 800B81 registered?
Mode-S code 800B81 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 800B81 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 800B81, octal 40005601, decimal 8,391,553.
What flights does 800B81 operate?
Mode-S 800B81 has broadcast 20 distinct callsigns, including SEJ126, SEJ122, SEJ495, SEJ478, SEJ124.