Apparatus

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sensors Mode-S transponder

76B44A

ICAO 24-bit transponder address · allocated to Singapore

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

Hex
76B44A
Octal
35532112
Decimal
7,779,402
Country
SG
Tail
9V-MBJ
Type
B38M
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
330
Distinct callsigns
20
Country
SG
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 76B44A.

Country allocation

The ICAO 24-bit address 76B44A 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
SIA994 - 9 2026-07-01
SIA995 - 8 2026-07-01
SIA740 - 8 2026-07-17
SIA136 - 8 2026-07-06
SIA135 - 8 2026-07-06
SIA131 - 8 2026-07-06
SIA104 - 8 2026-07-09
SIA103 - 8 2026-07-10
SIA852 - 7 2026-07-09
SIA616 Singapore Airlines 7 2026-07-21
SIA615 Singapore Airlines 7 2026-07-22
SIA193 Singapore Airlines 7 2026-07-22
SIA137 - 7 2026-07-16
SIA113 - 7 2026-07-17
SIA856 - 6 2026-07-02
SIA818 Singapore Airlines 6 2026-06-05
SIA194 Singapore Airlines 6 2026-07-22
SIA138 - 6 2026-07-16
SIA128 - 6 2026-07-15
SIA127 - 6 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SIA819 CKG → SIN Jul 26, 12:40 UTCJul 26, 22:30 UTC9h 50m
2026-07-26 SIA901 CEB → SIN Jul 26, 10:45 UTCJul 26, 10:55 UTC10m
2026-07-26 SIA900 SIN → CEB Jul 26, 04:45 UTCJul 26, 09:25 UTC4h 41m
2026-07-25 SIA141 PEN → SIN Jul 25, 14:00 UTCJul 25, 15:10 UTC1h 10m
2026-07-25 SIA142 SIN → PEN Jul 25, 11:40 UTCJul 25, 12:30 UTC50m
2026-07-25 SIA155 PNH → SIN Jul 25, 04:40 UTCJul 25, 09:55 UTC5h 15m
2026-07-24 SIA195 HAN → SIN Jul 24, 12:15 UTCJul 24, 12:45 UTC30m
2026-07-24 SIA195 HAN → SIN Jul 24, 09:45 UTCJul 24, 09:55 UTC10m
2026-07-24 SIA196 SIN → HAN Jul 24, 04:35 UTCJul 24, 05:00 UTC25m
2026-07-23 SIA763 RGN → SIN Jul 23, 10:05 UTCJul 23, 12:45 UTC2h 40m
2026-07-23 SIA764 SIN → RGN Jul 23, 06:25 UTCJul 23, 09:00 UTC2h 35m
2026-07-23 SIA154 SIN → PNH Jul 23, 00:00 UTCJul 23, 04:35 UTC4h 35m
2026-07-22 SIA193 HAN → SIN Jul 22, 13:50 UTCJul 22, 16:45 UTC2h 55m
2026-07-22 SIA194 SIN → HAN Jul 22, 11:50 UTCJul 22, 12:10 UTC20m
2026-07-22 SIA615 PUS → SIN Jul 22, 05:00 UTCJul 22, 05:25 UTC25m
2026-07-22 SIA615 PUS → SIN Jul 22, 01:00 UTCJul 22, 02:00 UTC1h 0m
2026-07-21 SIA615 PUS → SIN Jul 21, 23:25 UTCJul 21, 23:40 UTC15m
2026-07-21 SIA616 SIN → PUS Jul 21, 18:50 UTCJul 21, 21:40 UTC2h 50m
2026-07-21 SIA174 SIN → DAD Jul 21, 06:15 UTCJul 21, 12:05 UTC5h 50m
2026-07-21 SIA725 HKT → SIN Jul 21, 00:05 UTCJul 21, 04:10 UTC4h 5m
2026-07-20 SIA735 HKT → SIN Jul 20, 08:35 UTCJul 20, 12:45 UTC4h 10m
2026-07-20 SIA615 PUS → SIN Jul 20, 00:50 UTCJul 20, 04:15 UTC3h 25m
2026-07-19 SIA615 PUS → SIN Jul 19, 23:40 UTCJul 19, 23:55 UTC15m
2026-07-19 SIA616 SIN → PUS Jul 19, 21:05 UTCJul 19, 21:35 UTC30m
2026-07-19 SIA616 SIN → PUS Jul 19, 18:50 UTCJul 19, 19:55 UTC1h 5m
2026-07-19 SIA926 - Jul 19, 06:50 UTCJul 19, 07:20 UTC30m
2026-07-18 SIA615 PUS → SIN Jul 18, 23:10 UTCJul 19, 04:45 UTC5h 35m
2026-07-18 SIA616 SIN → PUS Jul 18, 17:05 UTCJul 18, 21:25 UTC4h 20m
2026-07-18 SIA173 - Jul 18, 06:20 UTCJul 18, 13:00 UTC6h 40m
2026-07-18 SIA107 - Jul 18, 03:25 UTCJul 18, 04:00 UTC35m
2026-07-18 SIA108 - Jul 18, 01:34 UTCJul 18, 02:14 UTC40m
2026-07-17 SIA740 - Jul 17, 11:00 UTCJul 17, 15:15 UTC4h 15m
2026-07-17 SIA113 - Jul 17, 07:05 UTCJul 17, 07:50 UTC45m
2026-07-17 SIA114 - Jul 17, 04:49 UTCJul 17, 05:30 UTC40m
2026-07-16 SIA137 - Jul 16, 10:40 UTCJul 16, 11:40 UTC1h 0m
2026-07-16 SIA138 - Jul 16, 08:15 UTCJul 16, 09:15 UTC1h 0m
2026-07-16 SIA147 - Jul 16, 06:20 UTCJul 16, 06:35 UTC15m
2026-07-16 SIA148 - Jul 16, 02:40 UTCJul 16, 03:30 UTC50m
2026-07-15 SIA127 - Jul 15, 14:30 UTCJul 15, 15:15 UTC45m
2026-07-15 SIA128 - Jul 15, 12:30 UTCJul 15, 13:15 UTC45m
2026-07-15 SIA148 - Jul 15, 07:00 UTCJul 15, 07:15 UTC15m
2026-07-14 SIA736 - Jul 14, 08:50 UTCJul 14, 13:10 UTC4h 20m
2026-07-13 SIA615 - Jul 13, 23:10 UTCJul 14, 04:45 UTC5h 35m
2026-07-13 SIA616 - Jul 13, 20:45 UTCJul 13, 21:15 UTC30m
2026-07-13 SIA616 - Jul 13, 18:25 UTCJul 13, 19:35 UTC1h 10m
2026-07-13 SIA616 - Jul 13, 15:10 UTCJul 13, 15:20 UTC10m
2026-07-13 SIA174 - Jul 13, 06:35 UTCJul 13, 12:05 UTC5h 30m
2026-07-13 SIA725 - Jul 13, 00:15 UTCJul 13, 04:30 UTC4h 15m
2026-07-11 SIA193 - Jul 11, 12:00 UTCJul 11, 15:00 UTC3h 0m
2026-07-11 SIA194 - Jul 11, 07:25 UTCJul 11, 07:50 UTC25m

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

Mode-S 76B44A frequently asked

What is Mode-S code 76B44A?
76B44A is an ICAO 24-bit transponder address. Allocated to Singapore. Assigned to 9V-MBJ.
Where is Mode-S 76B44A registered?
Mode-S code 76B44A is allocated to Singapore (SG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 76B44A 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 76B44A, octal 35532112, decimal 7,779,402.
What flights does 76B44A operate?
Mode-S 76B44A has broadcast 20 distinct callsigns, including SIA994, SIA995, SIA740, SIA136, SIA135.