sensors Mode-S transponder

76B866

ICAO 24-bit transponder address · allocated to Singapore

Currently assigned to 9V-NCF · AIRBUS A-321neo

Hex
76B866
Octal
35534146
Decimal
7,780,454
Country
SG
Tail
9V-NCF
Type
A21N
No current signal · last broadcast 21h ago
Flights observed
7
Distinct callsigns
6
Country
SG
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 76B866.

Country allocation

The ICAO 24-bit address 76B866 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 6 distinct

Callsign Airline Flights Last seen
TGW590 - 2 2026-04-13
TGW659 - 1 2026-04-13
TGW658 - 1 2026-04-13
TGW591 Tiger Airways 1 2026-04-13
TGW568 - 1 2026-04-13
TGW242 Tiger Airways 1 2026-04-14

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 TGW242 SIN → DPS Apr 14, 06:25 UTCApr 14, 06:35 UTC10m
2026-04-13 TGW568 - Apr 13, 22:20 UTCApr 13, 23:00 UTC40m
2026-04-13 TGW591 JED → SIN Apr 13, 12:20 UTCApr 13, 13:55 UTC1h 35m
2026-04-13 TGW590 - Apr 13, 09:20 UTCApr 13, 10:45 UTC1h 25m
2026-04-13 TGW590 - Apr 13, 07:40 UTCApr 13, 07:50 UTC10m
2026-04-13 TGW659 - Apr 13, 00:20 UTCApr 13, 03:55 UTC3h 35m
2026-04-13 TGW658 - Apr 13, 00:00 UTCApr 13, 03:50 UTC3h 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 9V-NCF page for operator, model, and routing details .

Mode-S 76B866 frequently asked

What is Mode-S code 76B866?
76B866 is an ICAO 24-bit transponder address. Allocated to Singapore. Assigned to 9V-NCF.
Where is Mode-S 76B866 registered?
Mode-S code 76B866 is allocated to Singapore (SG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 76B866 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 76B866, octal 35534146, decimal 7,780,454.
What flights does 76B866 operate?
Mode-S 76B866 has broadcast 6 distinct callsigns, including TGW590, TGW659, TGW658, TGW591, TGW568.