Apparatus

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sensors Mode-S transponder

490D06

ICAO 24-bit transponder address · allocated to Portugal

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

Hex
490D06
Octal
22206406
Decimal
4,787,462
Country
PT
Tail
CS-CHF
Type
CL35
No current signal · last broadcast Jul 26, 19:10 UTC
Flights observed
226
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 19:10 UTC

Last known position

Most recent position reported by Mode-S 490D06.

Country allocation

The ICAO 24-bit address 490D06 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
NJE4PZ - 10 2026-07-26
NJE117G - 3 2026-04-13
NJE928F - 2 2026-06-10
NJE906B - 2 2026-07-23
NJE700T - 2 2026-07-06
NJE693H - 2 2026-07-25
NJE560V - 2 2026-05-31
NJE523H - 2 2026-05-21
NJE435Y - 2 2026-07-13
NJE386V - 2 2026-04-13
NJE252E - 2 2026-07-04
NJE105P - 2 2026-06-30
NJE036P - 2 2026-05-17
NJU667U - 1 2026-06-08
NJU229U - 1 2026-05-01
NJU215T - 1 2026-05-03
NJE995C - 1 2026-06-27
NJE986K - 1 2026-07-19
NJE984D - 1 2026-05-03
NJE981N - 1 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NJE558Y FCO → LBG Jul 26, 17:30 UTCJul 26, 19:10 UTC1h 40m
2026-07-26 NJE042U ATH → CIA Jul 26, 15:00 UTCJul 26, 16:40 UTC1h 40m
2026-07-26 NJE621Q - Jul 26, 12:05 UTCJul 26, 13:35 UTC1h 30m
2026-07-26 NJE4PZ - Jul 26, 08:40 UTCJul 26, 09:25 UTC45m
2026-07-25 NJE384H - Jul 25, 21:30 UTCJul 25, 22:05 UTC35m
2026-07-25 NJE437F - Jul 25, 19:25 UTCJul 25, 20:50 UTC1h 25m
2026-07-25 NJE581Q - Jul 25, 15:40 UTCJul 25, 16:25 UTC45m
2026-07-25 NJE693H - Jul 25, 12:55 UTCJul 25, 13:40 UTC45m
2026-07-25 NJE703F BRU → GVA Jul 25, 09:55 UTCJul 25, 10:50 UTC55m
2026-07-24 NJE552Y - Jul 24, 11:10 UTCJul 24, 12:45 UTC1h 35m
2026-07-24 NJE554U - Jul 24, 07:55 UTCJul 24, 09:25 UTC1h 30m
2026-07-24 NJE170D - Jul 24, 05:35 UTCJul 24, 06:55 UTC1h 20m
2026-07-23 NJE375V - Jul 23, 12:20 UTCJul 23, 14:10 UTC1h 50m
2026-07-23 NJE695E - Jul 23, 09:35 UTCJul 23, 10:50 UTC1h 15m
2026-07-23 NJE906B - Jul 23, 07:05 UTCJul 23, 08:00 UTC55m
2026-07-22 NJE906B ZRH → STN Jul 22, 14:40 UTCJul 22, 16:00 UTC1h 20m
2026-07-22 NJE377T - Jul 22, 11:20 UTCJul 22, 12:50 UTC1h 30m
2026-07-21 NJE547L - Jul 21, 12:35 UTCJul 21, 13:30 UTC55m
2026-07-21 NJE522V - Jul 21, 10:10 UTCJul 21, 11:20 UTC1h 10m
2026-07-21 NJE247D BLK → JER Jul 21, 06:35 UTCJul 21, 07:25 UTC50m
2026-07-20 NJE752F NCE → BLK Jul 20, 12:10 UTCJul 20, 14:10 UTC2h 0m
2026-07-20 NJE839L - Jul 20, 07:20 UTCJul 20, 09:25 UTC2h 5m
2026-07-19 NJE4PZ - Jul 19, 16:05 UTCJul 19, 16:50 UTC45m
2026-07-19 NJE4PZ - Jul 19, 13:05 UTCJul 19, 13:45 UTC40m
2026-07-19 NJE440C SKG → BQH Jul 19, 08:05 UTCJul 19, 11:05 UTC3h 0m
2026-07-19 NJE986K LIN → SKG Jul 19, 04:25 UTCJul 19, 06:05 UTC1h 40m
2026-07-18 NJE302C - Jul 18, 11:25 UTCJul 18, 12:55 UTC1h 30m
2026-07-18 NJE620L - Jul 18, 09:15 UTCJul 18, 10:30 UTC1h 15m
2026-07-18 NJE361R - Jul 18, 07:05 UTCJul 18, 07:45 UTC40m
2026-07-17 NJE760A - Jul 17, 15:15 UTCJul 17, 16:10 UTC55m
2026-07-17 NJE469R - Jul 17, 12:04 UTCJul 17, 13:00 UTC55m
2026-07-14 NJE816G - Jul 14, 15:55 UTCJul 14, 17:10 UTC1h 15m
2026-07-14 NJE772W - Jul 14, 10:00 UTCJul 14, 12:50 UTC2h 50m
2026-07-14 NJE4PZ - Jul 14, 08:00 UTCJul 14, 08:35 UTC35m
2026-07-13 NJE123A - Jul 13, 12:35 UTCJul 13, 14:55 UTC2h 20m
2026-07-13 NJE435Y - Jul 13, 08:35 UTCJul 13, 10:00 UTC1h 25m
2026-07-13 NJE435Y ZRH → DUS Jul 13, 06:25 UTCJul 13, 07:25 UTC1h 0m
2026-07-11 NJE003D - Jul 11, 05:45 UTCJul 11, 07:10 UTC1h 25m
2026-07-10 NJE352E - Jul 10, 10:20 UTCJul 10, 13:05 UTC2h 45m
2026-07-09 NJE4PZ BQH → GOT Jul 9, 15:20 UTCJul 9, 16:50 UTC1h 30m
2026-07-09 NJE246D - Jul 9, 13:05 UTCJul 9, 14:05 UTC1h 0m
2026-07-09 NJE013G BRU → DUB Jul 9, 10:05 UTCJul 9, 11:30 UTC1h 25m
2026-07-09 NJE515V - Jul 9, 07:40 UTCJul 9, 09:00 UTC1h 20m
2026-07-08 NJE769D - Jul 8, 15:40 UTCJul 8, 16:55 UTC1h 15m
2026-07-08 NJE822W - Jul 8, 11:35 UTCJul 8, 13:25 UTC1h 50m
2026-07-08 NJE103F - Jul 8, 09:05 UTCJul 8, 10:15 UTC1h 10m
2026-07-08 NJE857W - Jul 8, 06:00 UTCJul 8, 07:20 UTC1h 20m
2026-07-07 NJE4PZ - Jul 7, 12:45 UTCJul 7, 13:30 UTC45m
2026-07-07 NJE198F - Jul 7, 10:25 UTCJul 7, 11:50 UTC1h 25m
2026-07-07 NJE147C BQH → FLR Jul 7, 07:00 UTCJul 7, 08:45 UTC1h 45m

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

Mode-S 490D06 frequently asked

What is Mode-S code 490D06?
490D06 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-CHF.
Where is Mode-S 490D06 registered?
Mode-S code 490D06 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 490D06 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 490D06, octal 22206406, decimal 4,787,462.
What flights does 490D06 operate?
Mode-S 490D06 has broadcast 20 distinct callsigns, including NJE4PZ, NJE117G, NJE928F, NJE906B, NJE700T.