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sensors Mode-S transponder

491D86

ICAO 24-bit transponder address · allocated to Portugal

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

Hex
491D86
Octal
22216606
Decimal
4,791,686
Country
PT
Tail
CS-GLF
Type
GLEX
No current signal · last broadcast Jul 26, 17:15 UTC
Flights observed
158
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 17:15 UTC

Last known position

Most recent position reported by Mode-S 491D86.

Country allocation

The ICAO 24-bit address 491D86 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
NJE7UM - 21 2026-07-15
NJE461E - 7 2026-04-14
NJE962V - 3 2026-05-04
NJE193A - 3 2026-05-07
NJE918P - 2 2026-04-17
NJE734E - 2 2026-04-30
NJE703Q - 2 2026-05-16
NJE647H - 2 2026-07-07
NJE454Y - 2 2026-04-17
NJE346V - 2 2026-05-17
NJE147K - 2 2026-06-26
NJE978L - 1 2026-07-17
NJE944R - 1 2026-06-17
NJE930C - 1 2026-06-06
NJE925Q - 1 2026-04-24
NJE923Q - 1 2026-06-06
NJE918D - 1 2026-06-10
NJE915Y - 1 2026-06-04
NJE910Q - 1 2026-06-08
NJE889H - 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NJE874U - Jul 26, 15:20 UTCJul 26, 17:15 UTC1h 55m
2026-07-26 NJE718K IBZ → FLR Jul 26, 12:35 UTCJul 26, 13:50 UTC1h 15m
2026-07-26 NJE446L - Jul 26, 09:30 UTCJul 26, 11:25 UTC1h 55m
2026-07-25 NJE741M - Jul 25, 13:50 UTCJul 25, 14:10 UTC20m
2026-07-25 NJE027B - Jul 25, 11:20 UTCJul 25, 12:50 UTC1h 30m
2026-07-25 NJE285V - Jul 25, 07:05 UTCJul 25, 08:15 UTC1h 10m
2026-07-24 NJE473F - Jul 24, 08:20 UTCJul 24, 09:15 UTC55m
2026-07-23 NJE575C - Jul 23, 15:45 UTCJul 23, 16:45 UTC1h 0m
2026-07-23 NJE764E - Jul 23, 07:00 UTCJul 23, 08:15 UTC1h 15m
2026-07-22 NJE733B - Jul 22, 14:40 UTCJul 22, 16:10 UTC1h 30m
2026-07-22 NJE236N - Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-21 NJE725V - Jul 21, 13:40 UTCJul 21, 15:00 UTC1h 20m
2026-07-21 NJE029T TLN → LUX Jul 21, 10:50 UTCJul 21, 11:55 UTC1h 5m
2026-07-21 NJE825P - Jul 21, 08:20 UTCJul 21, 09:35 UTC1h 15m
2026-07-20 NJE593L LIN → BRU Jul 20, 12:50 UTCJul 20, 13:55 UTC1h 5m
2026-07-20 NJE150U - Jul 20, 10:50 UTCJul 20, 11:20 UTC30m
2026-07-20 NJE548N - Jul 20, 07:35 UTCJul 20, 09:30 UTC1h 55m
2026-07-19 NJE417A - Jul 19, 20:25 UTCJul 19, 20:35 UTC10m
2026-07-19 NJE007B TEB → LTN Jul 19, 13:25 UTCJul 19, 19:40 UTC6h 15m
2026-07-17 NJE978L - Jul 17, 15:49 UTCJul 17, 22:35 UTC6h 45m
2026-07-16 NJE821L - Jul 16, 12:55 UTCJul 16, 13:54 UTC1h 0m
2026-07-16 NJE725W ZRH → LBG Jul 16, 09:55 UTCJul 16, 10:55 UTC1h 0m
2026-07-15 NJE684E LBG → ZRH Jul 15, 16:30 UTCJul 15, 17:30 UTC1h 0m
2026-07-15 NJE7UM - Jul 15, 11:35 UTCJul 15, 12:30 UTC55m
2026-07-15 NJE198E ZRH → SXB Jul 15, 08:10 UTCJul 15, 08:40 UTC30m
2026-07-14 NJE356Y NHT → ZRH Jul 14, 14:35 UTCJul 14, 15:40 UTC1h 5m
2026-07-14 NJE667Q BMA → NHT Jul 14, 10:40 UTCJul 14, 12:35 UTC1h 55m
2026-07-12 NJE172H - Jul 12, 02:10 UTCJul 12, 10:05 UTC7h 55m
2026-07-07 NJE647H - Jul 7, 19:30 UTCJul 7, 23:40 UTC4h 10m
2026-07-07 NJE647H - Jul 7, 07:15 UTCJul 7, 17:15 UTC10h 0m
2026-07-06 NJE462H - Jul 6, 18:35 UTCJul 6, 21:25 UTC2h 50m
2026-07-06 NJE7UM - Jul 6, 08:05 UTCJul 6, 08:55 UTC50m
2026-07-06 NJE7UM TEB → LBG Jul 6, 00:15 UTCJul 6, 06:40 UTC6h 25m
2026-06-30 NJE7UM RST → TEB Jun 30, 15:10 UTCJun 30, 17:05 UTC1h 55m
2026-06-28 NJE271N - Jun 28, 14:59 UTCJun 28, 23:44 UTC8h 45m
2026-06-27 NJE409N - Jun 27, 14:39 UTCJun 27, 16:10 UTC1h 30m
2026-06-27 NJE372M - Jun 27, 12:39 UTCJun 27, 13:30 UTC50m
2026-06-27 NJE636Q LTN → GVA Jun 27, 09:34 UTCJun 27, 10:54 UTC1h 20m
2026-06-26 NJE215F ATH → LTN Jun 26, 18:34 UTCJun 26, 21:45 UTC3h 10m
2026-06-26 NJE501K - Jun 26, 13:40 UTCJun 26, 14:29 UTC50m
2026-06-26 NJE147K - Jun 26, 09:00 UTCJun 26, 11:34 UTC2h 35m
2026-06-22 NJE147K - Jun 22, 06:05 UTCJun 22, 08:04 UTC2h 0m
2026-06-21 NJE500P - Jun 21, 20:29 UTCJun 21, 21:44 UTC1h 15m
2026-06-21 NJE178Y ATH → BDS Jun 21, 18:29 UTCJun 21, 19:24 UTC55m
2026-06-20 NJE351C - Jun 20, 11:20 UTCJun 20, 13:59 UTC2h 40m
2026-06-17 NJE7UM WRO → LBG Jun 17, 17:30 UTCJun 17, 19:00 UTC1h 30m
2026-06-17 NJE513Y - Jun 17, 15:10 UTCJun 17, 16:35 UTC1h 25m
2026-06-17 NJE944R - Jun 17, 11:20 UTCJun 17, 12:25 UTC1h 5m
2026-06-16 NJE611M BRU → DLE Jun 16, 14:35 UTCJun 16, 15:24 UTC50m
2026-06-16 NJE679R MAN → BRU Jun 16, 09:45 UTCJun 16, 10:35 UTC50m

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

Mode-S 491D86 frequently asked

What is Mode-S code 491D86?
491D86 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-GLF.
Where is Mode-S 491D86 registered?
Mode-S code 491D86 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 491D86 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 491D86, octal 22216606, decimal 4,791,686.
What flights does 491D86 operate?
Mode-S 491D86 has broadcast 20 distinct callsigns, including NJE7UM, NJE461E, NJE962V, NJE193A, NJE918P.