Apparatus

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sensors Mode-S transponder

490D0F

ICAO 24-bit transponder address · allocated to Portugal

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

Hex
490D0F
Octal
22206417
Decimal
4,787,471
Country
PT
Tail
CS-CHO
Type
CL35
No current signal · last broadcast Jul 26, 15:40 UTC
Flights observed
237
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 15:40 UTC

Last known position

Most recent position reported by Mode-S 490D0F.

Country allocation

The ICAO 24-bit address 490D0F 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
NJE7BW - 12 2026-07-09
NJE894B - 3 2026-04-16
NJE863C - 3 2026-04-13
NJE719F - 3 2026-04-14
NJE900M - 2 2026-07-16
NJE854U - 2 2026-04-15
NJE845K - 2 2026-06-23
NJE823L - 2 2026-04-17
NJE791N - 2 2026-04-14
NJE682F - 2 2026-04-27
NJE677U - 2 2026-04-17
NJE658K - 2 2026-05-22
NJE608G - 2 2026-05-30
NJE593U - 2 2026-06-17
NJE498K - 2 2026-04-25
NJE300P - 2 2026-06-28
NJE294M - 2 2026-04-16
NJE150A - 2 2026-04-17
NJE121C - 2 2026-05-18
NJE072F - 2 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NJE274U - Jul 26, 13:15 UTCJul 26, 15:35 UTC2h 20m
2026-07-26 NJE099T - Jul 26, 11:20 UTCJul 26, 11:35 UTC15m
2026-07-25 NJE193L FAO → CAT Jul 25, 19:05 UTCJul 25, 19:35 UTC30m
2026-07-25 NJE291Q NCE → FAO Jul 25, 15:15 UTCJul 25, 17:40 UTC2h 25m
2026-07-25 NJE955E MLA → NCE Jul 25, 07:05 UTCJul 25, 08:50 UTC1h 45m
2026-07-24 NJE803Q ATH → MLA Jul 24, 11:50 UTCJul 24, 13:25 UTC1h 35m
2026-07-24 NJE008E - Jul 24, 08:55 UTCJul 24, 09:55 UTC1h 0m
2026-07-23 NJE469R - Jul 23, 17:00 UTCJul 23, 17:50 UTC50m
2026-07-23 NJE629D - Jul 23, 14:35 UTCJul 23, 15:50 UTC1h 15m
2026-07-23 NJE261M BUD → FMO Jul 23, 11:35 UTCJul 23, 13:05 UTC1h 30m
2026-07-23 NJE820C CIA → BUD Jul 23, 09:15 UTCJul 23, 10:30 UTC1h 15m
2026-07-22 NJE577K - Jul 22, 15:55 UTCJul 22, 16:30 UTC35m
2026-07-22 NJE877Y - Jul 22, 04:35 UTCJul 22, 05:25 UTC50m
2026-07-21 NJE642N NCE → ISL Jul 21, 11:25 UTCJul 21, 13:35 UTC2h 10m
2026-07-21 NJE946V - Jul 21, 08:45 UTCJul 21, 09:40 UTC55m
2026-07-21 NJE966M OLB → CIA Jul 21, 06:10 UTCJul 21, 06:40 UTC30m
2026-07-20 NJE820F ATH → OLB Jul 20, 14:25 UTCJul 20, 16:20 UTC1h 55m
2026-07-20 NJE216V NCE → ATH Jul 20, 10:00 UTCJul 20, 12:00 UTC2h 0m
2026-07-20 NJE683E ZRH → NCE Jul 20, 07:50 UTCJul 20, 08:40 UTC50m
2026-07-19 NJE108R - Jul 19, 12:25 UTCJul 19, 13:10 UTC45m
2026-07-19 NJE485B - Jul 19, 08:05 UTCJul 19, 10:20 UTC2h 15m
2026-07-18 NJE995C - Jul 18, 15:10 UTCJul 18, 17:45 UTC2h 35m
2026-07-18 NJE550P - Jul 18, 13:20 UTCJul 18, 14:05 UTC45m
2026-07-18 NJE453T - Jul 18, 11:05 UTCJul 18, 12:10 UTC1h 5m
2026-07-18 NJE414A - Jul 18, 08:10 UTCJul 18, 08:25 UTC15m
2026-07-17 NJE173G IBZ → OLB Jul 17, 15:10 UTCJul 17, 16:10 UTC1h 0m
2026-07-17 NJE966F MUC → IBZ Jul 17, 12:15 UTCJul 17, 14:20 UTC2h 5m
2026-07-16 NJE218N - Jul 16, 07:15 UTCJul 16, 10:25 UTC3h 10m
2026-07-16 NJE900M - Jul 16, 04:20 UTCJul 16, 06:15 UTC1h 55m
2026-07-15 NJE900M - Jul 15, 14:00 UTCJul 15, 14:30 UTC30m
2026-07-15 NJE553P - Jul 15, 11:45 UTCJul 15, 12:20 UTC35m
2026-07-15 NJE663D - Jul 15, 09:15 UTCJul 15, 09:50 UTC35m
2026-07-15 NJE079M - Jul 15, 07:00 UTCJul 15, 07:55 UTC55m
2026-07-09 NJE7BW DBV → LBG Jul 9, 12:40 UTCJul 9, 14:55 UTC2h 15m
2026-07-09 NJE055L - Jul 9, 08:35 UTCJul 9, 11:35 UTC3h 0m
2026-07-08 NJE205P BCN → CAT Jul 8, 15:35 UTCJul 8, 17:05 UTC1h 30m
2026-07-08 NJE736C - Jul 8, 12:00 UTCJul 8, 13:45 UTC1h 45m
2026-07-08 NJE575U - Jul 8, 08:05 UTCJul 8, 10:20 UTC2h 15m
2026-07-07 NJE389Q - Jul 7, 16:10 UTCJul 7, 18:50 UTC2h 40m
2026-07-07 NJE414N - Jul 7, 13:35 UTCJul 7, 14:25 UTC50m
2026-07-07 NJE587M - Jul 7, 11:25 UTCJul 7, 12:20 UTC55m
2026-07-06 NJE995P - Jul 6, 18:10 UTCJul 6, 19:10 UTC1h 0m
2026-07-06 NJE588B NCE → FKB Jul 6, 08:50 UTCJul 6, 09:50 UTC1h 0m
2026-07-05 NJE533V CEQ → NCE Jul 5, 17:30 UTCJul 5, 17:40 UTC10m
2026-07-05 NJE543E - Jul 5, 15:20 UTCJul 5, 16:10 UTC50m
2026-07-05 NJE116U - Jul 5, 12:50 UTCJul 5, 13:10 UTC20m
2026-07-05 NJE906Y RHO → GVA Jul 5, 06:50 UTCJul 5, 09:55 UTC3h 5m
2026-07-05 NJE310G SKG → RHO Jul 5, 05:05 UTCJul 5, 06:05 UTC1h 0m
2026-07-04 NJE435T - Jul 4, 13:50 UTCJul 4, 15:20 UTC1h 30m
2026-07-04 NJE670Y - Jul 4, 10:20 UTCJul 4, 12:30 UTC2h 10m

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

Mode-S 490D0F frequently asked

What is Mode-S code 490D0F?
490D0F is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-CHO.
Where is Mode-S 490D0F registered?
Mode-S code 490D0F is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 490D0F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 490D0F, octal 22206417, decimal 4,787,471.
What flights does 490D0F operate?
Mode-S 490D0F has broadcast 20 distinct callsigns, including NJE7BW, NJE894B, NJE863C, NJE719F, NJE900M.