Apparatus

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sensors Mode-S transponder

491D89

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-GLI · BOMBARDIER BD-700 Global 6000/6500

Hex
491D89
Octal
22216611
Decimal
4,791,689
Country
PT
Tail
CS-GLI
Type
GLEX
No current signal · last broadcast 28d ago
Flights observed
103
Distinct callsigns
20
Country
PT
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S 491D89.

Country allocation

The ICAO 24-bit address 491D89 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
NJE6MF - 9 2026-07-06
NJE628T - 3 2026-07-11
NJE518F - 3 2026-06-24
NJE721Q - 2 2026-06-21
NJE476Y - 2 2026-06-30
NJE162H - 2 2026-07-20
NJU839C - 1 2026-06-01
NJU731F - 1 2026-05-17
NJU470W - 1 2026-05-27
NJU022T - 1 2026-07-05
NJE988E - 1 2026-05-28
NJE973W - 1 2026-05-27
NJE957D - 1 2026-07-04
NJE946A - 1 2026-05-31
NJE931N - 1 2026-05-18
NJE900A - 1 2026-06-27
NJE884D - 1 2026-06-03
NJE877U - 1 2026-06-18
NJE859N - 1 2026-06-26
NJE849V - 1 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 NJE075W BRU → BQH Jul 21, 14:45 UTCJul 21, 15:25 UTC40m
2026-07-20 NJE162H - Jul 20, 20:45 UTCJul 20, 22:45 UTC2h 0m
2026-07-19 NJE162H - Jul 19, 07:25 UTCJul 19, 08:35 UTC1h 10m
2026-07-18 NJE704R SOU → LIN Jul 18, 18:30 UTCJul 18, 20:15 UTC1h 45m
2026-07-18 NJE329A - Jul 18, 09:00 UTCJul 18, 10:50 UTC1h 50m
2026-07-17 NJE516Y - Jul 17, 12:25 UTCJul 17, 14:24 UTC2h 0m
2026-07-17 NJE506N - Jul 17, 10:40 UTCJul 17, 11:04 UTC25m
2026-07-15 NJE432U - Jul 15, 08:35 UTCJul 15, 10:45 UTC2h 10m
2026-07-13 NJE142D - Jul 13, 14:05 UTCJul 13, 16:00 UTC1h 55m
2026-07-13 NJE745U PEG → WAW Jul 13, 10:55 UTCJul 13, 12:30 UTC1h 35m
2026-07-13 NJE120N - Jul 13, 00:05 UTCJul 13, 08:10 UTC8h 5m
2026-07-11 NJE628T - Jul 11, 18:00 UTCJul 11, 19:00 UTC1h 0m
2026-07-11 NJE628T - Jul 11, 00:35 UTCJul 11, 00:55 UTC20m
2026-07-10 NJE628T LTN → YYZ Jul 10, 16:40 UTCJul 10, 23:45 UTC7h 5m
2026-07-09 NJE705T - Jul 9, 17:45 UTCJul 9, 18:10 UTC25m
2026-07-08 NJE438H - Jul 8, 09:40 UTCJul 8, 10:00 UTC20m
2026-07-08 NJE054G - Jul 8, 02:05 UTCJul 8, 08:20 UTC6h 15m
2026-07-06 NJE6MF - Jul 6, 19:00 UTCJul 6, 19:25 UTC25m
2026-07-06 NJE6MF - Jul 6, 17:15 UTCJul 6, 17:25 UTC10m
2026-07-06 NJE6MF - Jul 6, 16:30 UTCJul 6, 17:10 UTC40m
2026-07-05 NJU022T - Jul 5, 10:05 UTCJul 5, 11:15 UTC1h 10m
2026-07-04 NJE957D ORK → BRS Jul 4, 18:45 UTCJul 4, 19:30 UTC45m
2026-07-04 NJE849V - Jul 4, 16:40 UTCJul 4, 17:35 UTC55m
2026-07-04 NJE6MF ORK → FAB Jul 4, 10:30 UTCJul 4, 11:30 UTC1h 0m
2026-07-03 NJE352U - Jul 3, 15:55 UTCJul 3, 18:10 UTC2h 15m
2026-07-03 NJE746H - Jul 3, 13:35 UTCJul 3, 14:30 UTC55m
2026-07-02 NJE280E - Jul 2, 18:40 UTCJul 2, 19:25 UTC45m
2026-07-02 NJE599C - Jul 2, 08:20 UTCJul 2, 09:45 UTC1h 25m
2026-07-01 NJE230U NCE → LBG Jul 1, 15:40 UTCJul 1, 16:55 UTC1h 15m
2026-07-01 NJE664M - Jul 1, 01:00 UTCJul 1, 08:15 UTC7h 15m
2026-06-30 NJE476Y NCE → TEB Jun 30, 10:20 UTCJun 30, 18:20 UTC8h 0m
2026-06-29 NJE503C DUB → NCE Jun 29, 12:20 UTCJun 29, 14:25 UTC2h 5m
2026-06-28 NJE368H - Jun 28, 17:19 UTCJun 28, 19:34 UTC2h 15m
2026-06-28 NJE740N - Jun 28, 14:59 UTCJun 28, 16:14 UTC1h 15m
2026-06-28 NJE476Y - Jun 28, 11:19 UTCJun 28, 13:00 UTC1h 40m
2026-06-28 NJE528Y - Jun 28, 08:25 UTCJun 28, 09:55 UTC1h 30m
2026-06-27 NJE900A - Jun 27, 13:00 UTCJun 27, 13:49 UTC50m
2026-06-27 NJE668A - Jun 27, 07:55 UTCJun 27, 09:19 UTC1h 25m
2026-06-26 NJE017L FAB → LBG Jun 26, 17:19 UTCJun 26, 18:04 UTC45m
2026-06-26 NJE859N - Jun 26, 09:30 UTCJun 26, 16:00 UTC6h 30m
2026-06-25 NJE764V - Jun 25, 10:09 UTCJun 25, 13:00 UTC2h 50m
2026-06-24 NJE230W TLN → PRG Jun 24, 17:40 UTCJun 24, 19:04 UTC1h 25m
2026-06-24 NJE455C - Jun 24, 11:09 UTCJun 24, 12:34 UTC1h 25m
2026-06-24 NJE518F DUB → BQH Jun 24, 07:44 UTCJun 24, 08:35 UTC50m
2026-06-23 NJE518F - Jun 23, 11:40 UTCJun 23, 14:25 UTC2h 45m
2026-06-23 NJE518F - Jun 23, 09:14 UTCJun 23, 10:15 UTC1h 0m
2026-06-23 NJE844E NCE → SZG Jun 23, 06:15 UTCJun 23, 07:15 UTC1h 0m
2026-06-22 NJE126P - Jun 22, 16:34 UTCJun 22, 17:50 UTC1h 15m
2026-06-21 NJE6MF BOD → LBG Jun 21, 18:35 UTCJun 21, 19:24 UTC50m
2026-06-21 NJE431W - Jun 21, 11:34 UTCJun 21, 16:34 UTC5h 0m

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

Mode-S 491D89 frequently asked

What is Mode-S code 491D89?
491D89 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-GLI.
Where is Mode-S 491D89 registered?
Mode-S code 491D89 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 491D89 broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 491D89, octal 22216611, decimal 4,791,689.
What flights does 491D89 operate?
Mode-S 491D89 has broadcast 20 distinct callsigns, including NJE6MF, NJE628T, NJE518F, NJE721Q, NJE476Y.