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sensors Mode-S transponder

490D05

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-CHE · BOMBARDIER BD-100 Challenger 350

Hex
490D05
Octal
22206405
Decimal
4,787,461
Country
PT
Tail
CS-CHE
Type
CL35
Broadcasting now · callsign NJE531U · 36,950 ft
Flights observed
238
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 15:00 UTC

Current position

490D05 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 490D05 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 20 distinct

Callsign Airline Flights Last seen
NJE9GP - 17 2026-07-21
NJE185Y - 4 2026-05-03
NJE940P - 3 2026-05-28
NJE957R - 2 2026-04-15
NJE568M - 2 2026-05-09
NJE449K - 2 2026-04-16
NJE343K - 2 2026-06-29
NJE300K - 2 2026-04-15
NJE261L - 2 2026-04-21
NJE194R - 2 2026-04-16
NJE128D - 2 2026-04-17
NJE009A - 2 2026-07-20
NJU230G - 1 2026-05-27
NJU058F - 1 2026-06-27
NJE995R - 1 2026-06-19
NJE994Q - 1 2026-05-22
NJE993W - 1 2026-06-15
NJE993E - 1 2026-07-21
NJE988C - 1 2026-06-21
NJE987L - 1 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NJE327M - Jul 26, 13:50 UTCJul 26, 15:00 UTC1h 10m
2026-07-26 NJE585E - Jul 26, 11:35 UTCJul 26, 12:30 UTC55m
2026-07-26 NJE809E IBZ → BQH Jul 26, 08:20 UTCJul 26, 10:25 UTC2h 5m
2026-07-26 NJE188P BRN → IBZ Jul 26, 05:15 UTCJul 26, 07:00 UTC1h 46m
2026-07-25 NJE676N ATH → BRN Jul 25, 11:55 UTCJul 25, 14:30 UTC2h 35m
2026-07-25 NJE204G - Jul 25, 08:40 UTCJul 25, 10:25 UTC1h 45m
2026-07-25 NJE404D - Jul 25, 06:25 UTCJul 25, 06:55 UTC30m
2026-07-24 NJE750D - Jul 24, 09:15 UTCJul 24, 11:20 UTC2h 5m
2026-07-24 NJE201E - Jul 24, 07:25 UTCJul 24, 07:55 UTC30m
2026-07-23 NJE344C ANR → NHT Jul 23, 14:30 UTCJul 23, 15:05 UTC35m
2026-07-23 NJE855V MAD → ANR Jul 23, 08:25 UTCJul 23, 10:15 UTC1h 50m
2026-07-23 NJE825Q - Jul 23, 04:45 UTCJul 23, 05:25 UTC40m
2026-07-22 NJE493E - Jul 22, 10:20 UTCJul 22, 11:55 UTC1h 35m
2026-07-21 NJE9GP GRZ → TLL Jul 21, 13:00 UTCJul 21, 15:00 UTC2h 0m
2026-07-21 NJE9GP - Jul 21, 10:30 UTCJul 21, 11:35 UTC1h 5m
2026-07-21 NJE993E PSA → FMO Jul 21, 07:15 UTCJul 21, 08:45 UTC1h 30m
2026-07-21 NJE053D - Jul 21, 04:45 UTCJul 21, 05:35 UTC50m
2026-07-20 NJE009A - Jul 20, 12:40 UTCJul 20, 13:40 UTC1h 0m
2026-07-20 NJE009A - Jul 20, 10:25 UTCJul 20, 11:15 UTC50m
2026-07-16 NJE675T - Jul 16, 21:19 UTCJul 16, 22:55 UTC1h 35m
2026-07-16 NJE669V - Jul 16, 18:10 UTCJul 16, 20:29 UTC2h 20m
2026-07-16 NJE854L - Jul 16, 15:00 UTCJul 16, 16:49 UTC1h 50m
2026-07-15 NJE743R - Jul 15, 16:55 UTCJul 15, 18:20 UTC1h 25m
2026-07-15 NJE781Y NUE → NHT Jul 15, 13:15 UTCJul 15, 14:40 UTC1h 25m
2026-07-01 NJE123M - Jul 1, 10:35 UTCJul 1, 11:05 UTC30m
2026-07-01 NJE541U MXP → FRA Jul 1, 08:05 UTCJul 1, 09:00 UTC55m
2026-07-01 NJE456H - Jul 1, 05:20 UTCJul 1, 06:40 UTC1h 20m
2026-06-30 NJE919M - Jun 30, 13:15 UTCJun 30, 14:40 UTC1h 25m
2026-06-30 NJE780R - Jun 30, 09:55 UTCJun 30, 11:45 UTC1h 50m
2026-06-30 NJE764W - Jun 30, 07:50 UTCJun 30, 08:55 UTC1h 5m
2026-06-29 NJE805T - Jun 29, 17:55 UTCJun 29, 18:44 UTC50m
2026-06-29 NJE763F IBZ → FAB Jun 29, 15:14 UTCJun 29, 17:14 UTC2h 0m
2026-06-29 NJE343K - Jun 29, 13:14 UTCJun 29, 13:24 UTC10m
2026-06-29 NJE343K - Jun 29, 12:09 UTCJun 29, 13:09 UTC1h 0m
2026-06-28 NJE519C - Jun 28, 15:14 UTCJun 28, 18:59 UTC3h 45m
2026-06-28 NJE328M - Jun 28, 08:29 UTCJun 28, 09:50 UTC1h 20m
2026-06-27 NJE894W CWL → STN Jun 27, 16:30 UTCJun 27, 16:59 UTC30m
2026-06-27 NJU058F - Jun 27, 14:20 UTCJun 27, 15:10 UTC50m
2026-06-27 NJE152R LCY → GLA Jun 27, 11:30 UTCJun 27, 12:19 UTC50m
2026-06-27 NJE148F - Jun 27, 09:15 UTCJun 27, 10:25 UTC1h 10m
2026-06-26 NJE907B OBF → HAM Jun 26, 16:09 UTCJun 26, 17:15 UTC1h 5m
2026-06-26 NJE308L - Jun 26, 14:05 UTCJun 26, 14:44 UTC40m
2026-06-26 NJE271A ZRH → FRA Jun 26, 11:40 UTCJun 26, 12:19 UTC40m
2026-06-26 NJE185D - Jun 26, 09:45 UTCJun 26, 10:15 UTC30m
2026-06-26 NJE092Q HAJ → FRA Jun 26, 07:35 UTCJun 26, 08:20 UTC45m
2026-06-25 NJE9GP - Jun 25, 15:44 UTCJun 25, 17:20 UTC1h 35m
2026-06-25 NJE9GP - Jun 25, 13:14 UTCJun 25, 14:04 UTC50m
2026-06-25 NJE9GP - Jun 25, 10:59 UTCJun 25, 11:59 UTC1h 0m
2026-06-24 NJE634E - Jun 24, 20:30 UTCJun 24, 21:24 UTC55m
2026-06-24 NJE232A - Jun 24, 16:45 UTCJun 24, 17:59 UTC1h 15m

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

Mode-S 490D05 frequently asked

What is Mode-S code 490D05?
490D05 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-CHE.
Where is Mode-S 490D05 registered?
Mode-S code 490D05 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 490D05 broadcasting right now?
Yes. Mode-S 490D05 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 490D05, octal 22206405, decimal 4,787,461.
What flights does 490D05 operate?
Mode-S 490D05 has broadcast 20 distinct callsigns, including NJE9GP, NJE185Y, NJE940P, NJE957R, NJE568M.