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sensors Mode-S transponder

4911F4

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-DOT · CESSNA 525A Citation CJ2

Hex
4911F4
Octal
22210764
Decimal
4,788,724
Country
PT
Tail
CS-DOT
Type
C25A
No current signal · last broadcast 2d ago
Flights observed
89
Distinct callsigns
20
Country
PT
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4911F4.

Country allocation

The ICAO 24-bit address 4911F4 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
VVV431 - 10 2026-07-14
VVV461 - 9 2026-07-10
VVV441 - 9 2026-07-15
VVV421 - 9 2026-07-06
VVV451 - 8 2026-06-25
VVV471 - 7 2026-07-04
VVV411 - 7 2026-07-12
VVV422 - 6 2026-07-06
VVV462 - 4 2026-07-10
VVV452 - 4 2026-06-18
VVV432 - 3 2026-06-23
VVV423 - 3 2026-07-06
VVV442 - 2 2026-06-14
VVV463 - 1 2026-06-19
VVV453 - 1 2026-06-18
VVV433 - 1 2026-07-07
VVV413 - 1 2026-06-14
VVV412 - 1 2026-07-12
VVV343 - 1 2026-04-22
VVV342 - 1 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 VVV441 - Jul 15, 10:30 UTCJul 15, 12:00 UTC1h 30m
2026-07-14 VVV431 - Jul 14, 15:15 UTCJul 14, 16:15 UTC1h 0m
2026-07-12 VVV412 - Jul 12, 12:20 UTCJul 12, 15:10 UTC2h 50m
2026-07-12 VVV411 NCL → STN Jul 12, 09:20 UTCJul 12, 10:20 UTC1h 0m
2026-07-10 VVV462 NCE → NCL Jul 10, 10:20 UTCJul 10, 12:30 UTC2h 10m
2026-07-10 VVV461 - Jul 10, 07:00 UTCJul 10, 07:55 UTC55m
2026-07-08 VVV441 LIN → CIA Jul 8, 16:55 UTCJul 8, 17:45 UTC50m
2026-07-07 VVV433 - Jul 7, 08:20 UTCJul 7, 09:15 UTC55m
2026-07-07 VVV431 - Jul 7, 06:00 UTCJul 7, 06:40 UTC40m
2026-07-06 VVV423 - Jul 6, 13:55 UTCJul 6, 16:20 UTC2h 25m
2026-07-06 VVV422 - Jul 6, 09:00 UTCJul 6, 09:50 UTC50m
2026-07-06 VVV421 - Jul 6, 05:10 UTCJul 6, 07:15 UTC2h 5m
2026-07-04 VVV411 - Jul 4, 19:25 UTCJul 4, 20:10 UTC45m
2026-07-04 VVV471 - Jul 4, 14:55 UTCJul 4, 15:55 UTC1h 0m
2026-07-03 VVV462 - Jul 3, 16:40 UTCJul 3, 17:40 UTC1h 0m
2026-07-03 VVV462 - Jul 3, 14:25 UTCJul 3, 14:50 UTC25m
2026-07-03 VVV461 - Jul 3, 10:50 UTCJul 3, 12:15 UTC1h 25m
2026-07-01 VVV441 - Jul 1, 07:20 UTCJul 1, 10:25 UTC3h 5m
2026-06-29 VVV422 - Jun 29, 10:15 UTCJun 29, 12:34 UTC2h 20m
2026-06-29 VVV421 - Jun 29, 06:14 UTCJun 29, 08:44 UTC2h 30m
2026-06-28 VVV411 - Jun 28, 13:14 UTCJun 28, 16:09 UTC2h 55m
2026-06-27 VVV411 - Jun 27, 16:00 UTCJun 27, 16:14 UTC15m
2026-06-27 VVV471 CAT → LTN Jun 27, 10:10 UTCJun 27, 12:39 UTC2h 30m
2026-06-26 VVV461 DUB → CAT Jun 26, 13:59 UTCJun 26, 16:44 UTC2h 45m
2026-06-25 VVV451 - Jun 25, 10:15 UTCJun 25, 12:44 UTC2h 30m
2026-06-24 VVV441 - Jun 24, 14:55 UTCJun 24, 15:59 UTC1h 5m
2026-06-23 VVV432 - Jun 23, 15:50 UTCJun 23, 16:54 UTC1h 5m
2026-06-23 VVV431 - Jun 23, 10:29 UTCJun 23, 13:34 UTC3h 5m
2026-06-22 VVV423 - Jun 22, 15:10 UTCJun 22, 18:04 UTC2h 55m
2026-06-22 VVV422 - Jun 22, 12:59 UTCJun 22, 13:54 UTC55m
2026-06-22 VVV422 - Jun 22, 09:34 UTCJun 22, 11:24 UTC1h 50m
2026-06-21 VVV411 - Jun 21, 18:10 UTCJun 21, 19:50 UTC1h 40m
2026-06-20 VVV471 - Jun 20, 13:09 UTCJun 20, 14:09 UTC1h 0m
2026-06-19 VVV463 - Jun 19, 17:24 UTCJun 19, 18:44 UTC1h 20m
2026-06-19 VVV462 - Jun 19, 15:19 UTCJun 19, 15:54 UTC35m
2026-06-19 VVV461 - Jun 19, 11:14 UTCJun 19, 12:54 UTC1h 40m
2026-06-18 VVV453 OPO → FAO Jun 18, 21:45 UTCJun 18, 22:35 UTC50m
2026-06-18 VVV452 FAO → OPO Jun 18, 14:35 UTCJun 18, 15:20 UTC45m
2026-06-18 VVV451 - Jun 18, 11:55 UTCJun 18, 12:30 UTC35m
2026-06-16 VVV431 BQH → CAT Jun 16, 08:05 UTCJun 16, 10:45 UTC2h 40m
2026-06-15 VVV422 - Jun 15, 13:30 UTCJun 15, 14:24 UTC55m
2026-06-15 VVV421 MAD → MST Jun 15, 08:15 UTCJun 15, 10:35 UTC2h 20m
2026-06-14 VVV413 - Jun 14, 19:50 UTCJun 14, 21:00 UTC1h 10m
2026-06-14 VVV442 LME → CAT Jun 14, 16:35 UTCJun 14, 18:45 UTC2h 10m
2026-06-14 VVV441 - Jun 14, 11:00 UTCJun 14, 12:00 UTC1h 0m
2026-06-13 VVV461 - Jun 13, 11:50 UTCJun 13, 14:25 UTC2h 35m
2026-06-13 VVV471 - Jun 13, 07:40 UTCJun 13, 09:25 UTC1h 45m
2026-06-12 VVV461 - Jun 12, 16:05 UTCJun 12, 18:10 UTC2h 5m
2026-06-11 VVV452 - Jun 11, 17:50 UTCJun 11, 20:10 UTC2h 20m
2026-06-11 VVV451 - Jun 11, 10:30 UTCJun 11, 12:20 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-DOT page for operator, model, and routing details .

Mode-S 4911F4 frequently asked

What is Mode-S code 4911F4?
4911F4 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-DOT.
Where is Mode-S 4911F4 registered?
Mode-S code 4911F4 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4911F4 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4911F4, octal 22210764, decimal 4,788,724.
What flights does 4911F4 operate?
Mode-S 4911F4 has broadcast 20 distinct callsigns, including VVV431, VVV461, VVV441, VVV421, VVV451.