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 1h ago
Flights observed
110
Distinct callsigns
20
Country
PT
Last broadcast
1h ago

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 - 6 2026-05-28
NJE894B - 3 2026-04-16
NJE863C - 3 2026-04-13
NJE719F - 3 2026-04-14
NJE854U - 2 2026-04-15
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
NJE498K - 2 2026-04-25
NJE294M - 2 2026-04-16
NJE150A - 2 2026-04-17
NJE121C - 2 2026-05-18
NJE072F - 2 2026-04-15
NJE052Y - 2 2026-04-28
XXXXXX - 1 2026-05-07
NJE988D - 1 2026-05-25
NJE977U - 1 2026-05-07
NJE936L - 1 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 NJE273A - May 30, 09:35 UTCMay 30, 09:45 UTC10m
2026-05-29 NJE936L BER → DTM May 29, 16:05 UTCMay 29, 16:50 UTC45m
2026-05-29 NJE647R ZRH → BER May 29, 13:15 UTCMay 29, 14:20 UTC1h 5m
2026-05-29 NJE107F - May 29, 10:35 UTCMay 29, 11:40 UTC1h 5m
2026-05-29 NJE254B - May 29, 08:35 UTCMay 29, 09:30 UTC55m
2026-05-28 NJE332A - May 28, 16:20 UTCMay 28, 17:15 UTC55m
2026-05-28 NJE431G - May 28, 12:35 UTCMay 28, 13:45 UTC1h 10m
2026-05-28 NJE7BW - May 28, 10:35 UTCMay 28, 11:20 UTC45m
2026-05-28 NJE882W - May 28, 07:55 UTCMay 28, 08:45 UTC50m
2026-05-27 NJE675L - May 27, 13:00 UTCMay 27, 14:00 UTC1h 0m
2026-05-25 NJE988D - May 25, 17:20 UTCMay 25, 17:45 UTC25m
2026-05-25 NJE024U - May 25, 12:20 UTCMay 25, 13:00 UTC40m
2026-05-25 NJE352W - May 25, 10:10 UTCMay 25, 10:45 UTC35m
2026-05-24 NJE410B PRG → LIN May 24, 15:35 UTCMay 24, 16:30 UTC55m
2026-05-23 NJE157D NCE → PRG May 23, 16:05 UTCMay 23, 17:30 UTC1h 25m
2026-05-23 NJE505T - May 23, 11:00 UTCMay 23, 12:10 UTC1h 10m
2026-05-23 NJE053C - May 23, 08:30 UTCMay 23, 09:45 UTC1h 15m
2026-05-22 NJE419V FAB → TLN May 22, 16:10 UTCMay 22, 17:35 UTC1h 25m
2026-05-22 NJE658K - May 22, 12:20 UTCMay 22, 14:45 UTC2h 25m
2026-05-22 NJE658K - May 22, 08:55 UTCMay 22, 11:35 UTC2h 40m
2026-05-21 NJE7BW - May 21, 15:40 UTCMay 21, 16:20 UTC40m
2026-05-21 NJE649W NCE → LBG May 21, 12:50 UTCMay 21, 14:05 UTC1h 15m
2026-05-21 NJE770V GVA → NCE May 21, 10:10 UTCMay 21, 10:50 UTC40m
2026-05-20 NJE901C IBZ → GVA May 20, 12:15 UTCMay 20, 13:50 UTC1h 35m
2026-05-19 NJE375N - May 19, 17:25 UTCMay 19, 19:10 UTC1h 45m
2026-05-19 NJE036P FAB → LUX May 19, 07:35 UTCMay 19, 08:30 UTC55m
2026-05-18 NJE655W - May 18, 14:00 UTCMay 18, 14:25 UTC25m
2026-05-18 NJE121C HAM → NHT May 18, 10:55 UTCMay 18, 12:05 UTC1h 10m
2026-05-18 NJE121C RTM → HAM May 18, 08:45 UTCMay 18, 09:25 UTC40m
2026-05-17 NJE462G - May 17, 16:15 UTCMay 17, 18:25 UTC2h 10m
2026-05-17 NJE055U - May 17, 12:50 UTCMay 17, 14:25 UTC1h 35m
2026-05-16 NJE188U - May 16, 12:05 UTCMay 16, 14:01 UTC1h 55m
2026-05-16 NJE611G - May 16, 08:20 UTCMay 16, 10:11 UTC1h 50m
2026-05-15 NJE7BW NUE → BQH May 15, 16:05 UTCMay 15, 17:20 UTC1h 15m
2026-05-15 NJE176U - May 15, 13:40 UTCMay 15, 13:55 UTC15m
2026-05-15 NJE098L - May 15, 10:35 UTCMay 15, 11:20 UTC45m
2026-05-15 NJE866H - May 15, 07:35 UTCMay 15, 09:00 UTC1h 25m
2026-05-14 NJE7BW - May 14, 15:50 UTCMay 14, 17:40 UTC1h 50m
2026-05-14 NJE036R - May 14, 12:40 UTCMay 14, 14:30 UTC1h 50m
2026-05-12 NJE303E MLA → ATH May 12, 07:00 UTCMay 12, 08:10 UTC1h 10m
2026-05-11 NJE412R IBZ → MLA May 11, 15:25 UTCMay 11, 17:00 UTC1h 36m
2026-05-11 NJE093L - May 11, 11:00 UTCMay 11, 12:35 UTC1h 35m
2026-05-10 NJE873A - May 10, 15:55 UTCMay 10, 16:44 UTC50m
2026-05-10 NJE024H - May 10, 12:49 UTCMay 10, 14:54 UTC2h 5m
2026-05-10 NJE809L - May 10, 07:55 UTCMay 10, 10:30 UTC2h 35m
2026-05-08 NJE423N - May 8, 12:44 UTCMay 8, 13:30 UTC45m
2026-05-08 NJE701K LCY → FAB May 8, 10:09 UTCMay 8, 10:44 UTC35m
2026-05-07 XXXXXX BRU → LCY May 7, 15:55 UTCMay 7, 17:20 UTC1h 25m
2026-05-07 NJE977U - May 7, 12:45 UTCMay 7, 14:15 UTC1h 30m
2026-05-07 NJE528Y - May 7, 09:10 UTCMay 7, 11:25 UTC2h 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-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 1h ago.
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, NJE854U.