Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

76B452

ICAO 24-bit transponder address · allocated to Singapore

Currently assigned to 9V-MBR · BOEING 737 MAX 8

Hex
76B452
Octal
35532122
Decimal
7,779,410
Country
SG
Tail
9V-MBR
Type
B38M
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
326
Distinct callsigns
20
Country
SG
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 76B452.

Country allocation

The ICAO 24-bit address 76B452 falls within the block assigned to Singapore (SG) by ICAO Annex 10, Volume III. Every aircraft registered in Singapore 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
SIA857 Singapore Airlines 16 2026-07-24
SIA856 Singapore Airlines 16 2026-07-24
SIA252 Singapore Airlines 11 2026-07-22
SIA853 - 10 2026-07-17
SIA852 Singapore Airlines 10 2026-07-17
SIA441 Singapore Airlines 9 2026-07-26
SIA525 Singapore Airlines 8 2026-07-21
SIA442 Singapore Airlines 8 2026-07-26
SIA761 Singapore Airlines 7 2026-07-19
SIA254 - 7 2026-07-18
SIA114 Singapore Airlines 7 2026-07-22
SIA927 Singapore Airlines 6 2026-07-25
SIA900 Singapore Airlines 6 2026-07-24
SIA762 Singapore Airlines 6 2026-07-19
SIA736 Singapore Airlines 6 2026-07-19
SIA253 - 6 2026-07-18
SIA193 Singapore Airlines 6 2026-07-20
SIA113 - 6 2026-07-03
SIA537 Singapore Airlines 5 2026-05-30
SIA517 - 5 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SIA441 KTM → SIN Jul 26, 17:50 UTCJul 26, 22:30 UTC4h 40m
2026-07-26 SIA442 SIN → KTM Jul 26, 11:15 UTCJul 26, 15:45 UTC4h 30m
2026-07-26 SIA171 DAD → SIN Jul 26, 02:35 UTCJul 26, 08:25 UTC5h 51m
2026-07-25 SIA927 SUB → SIN Jul 25, 11:40 UTCJul 25, 11:50 UTC10m
2026-07-25 SIA926 SIN → SUB Jul 25, 06:45 UTCJul 25, 07:00 UTC15m
2026-07-24 SIA154 SIN → PNH Jul 24, 23:55 UTCJul 25, 04:50 UTC4h 55m
2026-07-24 SIA857 SZX → SIN Jul 24, 21:40 UTCJul 24, 22:05 UTC25m
2026-07-24 SIA856 SIN → SZX Jul 24, 16:40 UTCJul 24, 17:00 UTC20m
2026-07-24 SIA856 SIN → SZX Jul 24, 13:15 UTCJul 24, 13:40 UTC25m
2026-07-24 SIA901 CEB → SIN Jul 24, 11:05 UTCJul 24, 11:15 UTC10m
2026-07-24 SIA900 SIN → CEB Jul 24, 04:40 UTCJul 24, 09:30 UTC4h 50m
2026-07-24 SIA900 SIN → CEB Jul 24, 03:15 UTCJul 24, 03:25 UTC10m
2026-07-23 SIA928 SIN → SUB Jul 23, 09:15 UTCJul 23, 14:25 UTC5h 10m
2026-07-23 SIA171 DAD → SIN Jul 23, 01:40 UTCJul 23, 07:25 UTC5h 45m
2026-07-22 SIA252 DRW → SIN Jul 22, 20:35 UTCJul 22, 20:45 UTC10m
2026-07-22 SIA114 SIN → KUL Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-22 SIA103 KUL → SIN Jul 22, 01:25 UTCJul 22, 01:55 UTC30m
2026-07-21 SIA104 SIN → KUL Jul 21, 23:20 UTCJul 22, 00:00 UTC40m
2026-07-21 SIA995 KNO → SIN Jul 21, 13:50 UTCJul 21, 14:55 UTC1h 5m
2026-07-21 SIA994 SIN → KNO Jul 21, 11:35 UTCJul 21, 12:15 UTC40m
2026-07-21 SIA525 MAA → SIN Jul 21, 08:25 UTCJul 21, 09:30 UTC1h 5m
2026-07-21 SIA525 MAA → SIN Jul 21, 05:25 UTCJul 21, 05:35 UTC10m
2026-07-21 SIA524 SIN → MAA Jul 21, 03:35 UTCJul 21, 03:50 UTC15m
2026-07-21 SIA524 SIN → MAA Jul 21, 00:15 UTCJul 21, 00:50 UTC35m
2026-07-20 SIA193 HAN → SIN Jul 20, 14:25 UTCJul 20, 14:55 UTC30m
2026-07-20 SIA193 HAN → SIN Jul 20, 12:05 UTCJul 20, 12:15 UTC10m
2026-07-20 SIA194 SIN → HAN Jul 20, 09:55 UTCJul 20, 10:05 UTC10m
2026-07-20 SIA194 SIN → HAN Jul 20, 07:15 UTCJul 20, 07:45 UTC30m
2026-07-20 SIA163 SAI → SIN Jul 20, 00:40 UTCJul 20, 05:25 UTC4h 45m
2026-07-19 SIA736 SIN → HKT Jul 19, 08:50 UTCJul 19, 13:15 UTC4h 25m
2026-07-19 SIA761 RGN → SIN Jul 19, 04:30 UTCJul 19, 07:00 UTC2h 30m
2026-07-19 SIA762 SIN → RGN Jul 19, 00:25 UTCJul 19, 03:05 UTC2h 40m
2026-07-18 SIA517 - Jul 18, 18:20 UTCJul 18, 22:20 UTC4h 0m
2026-07-18 SIA516 - Jul 18, 13:15 UTCJul 18, 16:50 UTC3h 35m
2026-07-18 SIA254 - Jul 18, 06:40 UTCJul 18, 06:50 UTC10m
2026-07-18 SIA253 - Jul 18, 00:50 UTCJul 18, 01:00 UTC10m
2026-07-17 SIA853 - Jul 17, 20:29 UTCJul 17, 21:00 UTC30m
2026-07-17 SIA853 - Jul 17, 17:44 UTCJul 17, 17:55 UTC10m
2026-07-17 SIA852 SIN → CAN Jul 17, 12:10 UTCJul 17, 15:35 UTC3h 25m
2026-07-17 SIA463 - Jul 17, 01:49 UTCJul 17, 10:35 UTC8h 45m
2026-07-16 SIA517 - Jul 16, 18:15 UTCJul 16, 22:15 UTC4h 0m
2026-07-16 SIA516 - Jul 16, 13:10 UTCJul 16, 16:55 UTC3h 45m
2026-07-16 SIA254 - Jul 16, 10:59 UTCJul 16, 11:10 UTC10m
2026-07-15 SIA173 - Jul 15, 06:15 UTCJul 15, 12:00 UTC5h 45m
2026-07-15 SIA726 - Jul 15, 00:15 UTCJul 15, 04:20 UTC4h 5m
2026-07-14 SIA157 - Jul 14, 13:10 UTCJul 14, 13:30 UTC20m
2026-07-14 SIA158 - Jul 14, 09:05 UTCJul 14, 09:30 UTC25m
2026-07-14 SIA147 - Jul 14, 06:05 UTCJul 14, 06:15 UTC10m
2026-07-14 SIA147 - Jul 14, 04:35 UTCJul 14, 04:45 UTC10m
2026-07-14 SIA148 - Jul 14, 02:40 UTCJul 14, 02:55 UTC15m

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 9V-MBR page for operator, model, and routing details .

Mode-S 76B452 frequently asked

What is Mode-S code 76B452?
76B452 is an ICAO 24-bit transponder address. Allocated to Singapore. Assigned to 9V-MBR.
Where is Mode-S 76B452 registered?
Mode-S code 76B452 is allocated to Singapore (SG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 76B452 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 76B452, octal 35532122, decimal 7,779,410.
What flights does 76B452 operate?
Mode-S 76B452 has broadcast 20 distinct callsigns, including SIA857, SIA856, SIA252, SIA853, SIA852.