sensors Mode-S transponder

490D86

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-CLF · BOMBARDIER CL-600 Challenger

Hex
490D86
Octal
22206606
Decimal
4,787,590
Country
PT
Tail
CS-CLF
Type
CL60
Transponder active on ground
Flights observed
7
Distinct callsigns
3
Country
PT
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 490D86.

Country allocation

The ICAO 24-bit address 490D86 falls within the block assigned to Portugal (PT) by ICAO Annex 10, Volume III. Every aircraft registered in Portugal 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 3 distinct

Callsign Airline Flights Last seen
NJE768V - 5 2026-04-13
NJE382B - 1 2026-04-13
NJE264V - 1 2026-04-14

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 NJE264V - Apr 14, 10:05 UTCApr 14, 11:05 UTC1h 0m
2026-04-13 NJE768V - Apr 13, 16:15 UTCApr 13, 17:05 UTC50m
2026-04-13 NJE768V - Apr 13, 15:50 UTCApr 13, 17:05 UTC1h 15m
2026-04-13 NJE768V - Apr 13, 15:25 UTCApr 13, 16:15 UTC50m
2026-04-13 NJE768V - Apr 13, 12:20 UTCApr 13, 13:20 UTC1h 0m
2026-04-13 NJE768V - Apr 13, 11:45 UTCApr 13, 12:15 UTC30m
2026-04-13 NJE382B - Apr 13, 09:15 UTCApr 13, 09:55 UTC40m

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 CS-CLF page for operator, model, and routing details .

Mode-S 490D86 frequently asked

What is Mode-S code 490D86?
490D86 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-CLF.
Where is Mode-S 490D86 registered?
Mode-S code 490D86 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 490D86 broadcasting right now?
Mode-S 490D86 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 490D86, octal 22206606, decimal 4,787,590.
What flights does 490D86 operate?
Mode-S 490D86 has broadcast 3 distinct callsigns, including NJE768V, NJE382B, NJE264V.