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sensors Mode-S transponder

490D0E

ICAO 24-bit transponder address · allocated to Portugal

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

Hex
490D0E
Octal
22206416
Decimal
4,787,470
Country
PT
Tail
CS-CHN
Type
CL35
No current signal · last broadcast 1d ago
Flights observed
197
Distinct callsigns
20
Country
PT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 490D0E.

Country allocation

The ICAO 24-bit address 490D0E 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
NJE7HN - 12 2026-06-22
NJE831D - 3 2026-04-15
NJE620N - 3 2026-06-14
NJE153E - 3 2026-04-13
NJE960U - 2 2026-06-04
NJE943U - 2 2026-04-19
NJE784A - 2 2026-06-11
NJE648V - 2 2026-05-16
NJE604T - 2 2026-07-07
NJE557H - 2 2026-06-22
NJE534Y - 2 2026-06-04
NJE523T - 2 2026-04-15
NJE399C - 2 2026-07-06
NJE383K - 2 2026-04-21
NJE375Y - 2 2026-07-04
NJE314M - 2 2026-04-17
NJE025A - 2 2026-04-17
NJE993E - 1 2026-04-23
NJE991L - 1 2026-05-31
NJE986D - 1 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 NJE829N - Jul 13, 11:15 UTCJul 13, 12:05 UTC50m
2026-07-10 NJE099T - Jul 10, 11:55 UTCJul 10, 15:40 UTC3h 45m
2026-07-10 NJE810K - Jul 10, 08:15 UTCJul 10, 10:20 UTC2h 5m
2026-07-09 NJE798K - Jul 9, 14:15 UTCJul 9, 14:55 UTC40m
2026-07-09 NJE165U - Jul 9, 11:50 UTCJul 9, 12:55 UTC1h 5m
2026-07-09 NJE952D - Jul 9, 09:20 UTCJul 9, 10:05 UTC45m
2026-07-08 NJE659M NCE → PSA Jul 8, 18:35 UTCJul 8, 19:00 UTC25m
2026-07-08 NJE128Q - Jul 8, 13:50 UTCJul 8, 14:05 UTC15m
2026-07-08 NJE913R - Jul 8, 10:35 UTCJul 8, 12:40 UTC2h 5m
2026-07-07 NJE604T - Jul 7, 13:20 UTCJul 7, 16:55 UTC3h 35m
2026-07-07 NJE604T - Jul 7, 07:10 UTCJul 7, 11:40 UTC4h 30m
2026-07-06 NJE399C BCN → PRG Jul 6, 14:45 UTCJul 6, 16:40 UTC1h 55m
2026-07-06 NJE108P PMI → BCN Jul 6, 12:25 UTCJul 6, 13:00 UTC35m
2026-07-06 NJE948V - Jul 6, 08:40 UTCJul 6, 09:10 UTC30m
2026-07-05 NJE273U - Jul 5, 21:10 UTCJul 5, 22:55 UTC1h 45m
2026-07-05 NJE428H LUX → STN Jul 5, 19:20 UTCJul 5, 20:10 UTC50m
2026-07-05 NJE756A - Jul 5, 17:20 UTCJul 5, 18:30 UTC1h 10m
2026-07-05 NJE463R - Jul 5, 13:20 UTCJul 5, 15:20 UTC2h 0m
2026-07-04 NJE401C - Jul 4, 13:20 UTCJul 4, 15:45 UTC2h 25m
2026-07-04 NJE375Y - Jul 4, 06:15 UTCJul 4, 10:20 UTC4h 5m
2026-07-03 NJE375Y ATH → TBS Jul 3, 12:05 UTCJul 3, 14:15 UTC2h 10m
2026-07-03 NJE545L - Jul 3, 09:50 UTCJul 3, 10:15 UTC25m
2026-07-03 NJE977F - Jul 3, 07:50 UTCJul 3, 08:20 UTC30m
2026-07-02 NJE015A - Jul 2, 09:20 UTCJul 2, 12:45 UTC3h 25m
2026-06-29 NJE975L LIN → LTN Jun 29, 18:55 UTCJun 29, 20:24 UTC1h 30m
2026-06-29 NJE163F - Jun 29, 16:59 UTCJun 29, 17:40 UTC40m
2026-06-29 NJE812Y - Jun 29, 10:40 UTCJun 29, 11:29 UTC50m
2026-06-29 NJE239W - Jun 29, 07:05 UTCJun 29, 09:05 UTC2h 0m
2026-06-28 NJE676L OXF → HAM Jun 28, 15:29 UTCJun 28, 16:39 UTC1h 10m
2026-06-28 NJE119V - Jun 28, 12:44 UTCJun 28, 13:00 UTC15m
2026-06-28 NJE174D - Jun 28, 09:45 UTCJun 28, 11:14 UTC1h 30m
2026-06-28 NJE662M - Jun 28, 07:50 UTCJun 28, 08:14 UTC25m
2026-06-25 NJE708R JMK → MAD Jun 25, 10:04 UTCJun 25, 13:29 UTC3h 25m
2026-06-25 NJE451P SKG → JMK Jun 25, 08:30 UTCJun 25, 09:14 UTC45m
2026-06-24 NJE144Y - Jun 24, 16:05 UTCJun 24, 17:20 UTC1h 15m
2026-06-24 NJE923B NCE → CIA Jun 24, 13:34 UTCJun 24, 14:24 UTC50m
2026-06-24 NJE662L - Jun 24, 10:39 UTCJun 24, 11:34 UTC55m
2026-06-24 NJE755H - Jun 24, 08:20 UTCJun 24, 09:39 UTC1h 20m
2026-06-23 NJE798W NCE → LBG Jun 23, 09:20 UTCJun 23, 10:35 UTC1h 15m
2026-06-23 NJE857H BUD → NCE Jun 23, 05:45 UTCJun 23, 07:15 UTC1h 30m
2026-06-22 NJE7HN - Jun 22, 13:44 UTCJun 22, 15:54 UTC2h 10m
2026-06-22 NJE236Y - Jun 22, 11:19 UTCJun 22, 12:15 UTC55m
2026-06-22 NJE557H - Jun 22, 08:44 UTCJun 22, 09:30 UTC45m
2026-06-22 NJE426L STR → LBG Jun 22, 06:00 UTCJun 22, 07:00 UTC1h 0m
2026-06-19 NJE504V CGN → STR Jun 19, 13:44 UTCJun 19, 14:19 UTC35m
2026-06-19 NJE511C NCE → CGN Jun 19, 11:04 UTCJun 19, 12:14 UTC1h 10m
2026-06-19 NJE723Y - Jun 19, 08:59 UTCJun 19, 10:14 UTC1h 15m
2026-06-18 NJE767V LCY → LBG Jun 18, 16:20 UTCJun 18, 17:55 UTC1h 35m
2026-06-18 NJE206Q - Jun 18, 14:20 UTCJun 18, 15:15 UTC55m
2026-06-18 NJE858B LIS → LBG Jun 18, 08:10 UTCJun 18, 10:00 UTC1h 50m

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

Mode-S 490D0E frequently asked

What is Mode-S code 490D0E?
490D0E is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-CHN.
Where is Mode-S 490D0E registered?
Mode-S code 490D0E is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 490D0E broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 490D0E, octal 22206416, decimal 4,787,470.
What flights does 490D0E operate?
Mode-S 490D0E has broadcast 20 distinct callsigns, including NJE7HN, NJE831D, NJE620N, NJE153E, NJE960U.