sensors Mode-S transponder

4C4AAB

ICAO 24-bit transponder address · allocated to Serbia

Currently assigned to YU-SVL · CESSNA 560XL Citation XLS

Hex
4C4AAB
Octal
23045253
Decimal
4,999,851
Country
RS
Tail
YU-SVL
Type
C56X
No current signal · last broadcast 2h ago
Flights observed
79
Distinct callsigns
2
Country
RS
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4C4AAB.

Country allocation

The ICAO 24-bit address 4C4AAB falls within the block assigned to Serbia (RS) by ICAO Annex 10, Volume III. Every aircraft registered in Serbia 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 2 distinct

Callsign Airline Flights Last seen
PNC1VL - 77 2026-06-03
PNC001V - 2 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 PNC1VL - Jun 3, 09:00 UTCJun 3, 09:40 UTC40m
2026-06-02 PNC1VL - Jun 2, 13:05 UTCJun 2, 14:10 UTC1h 5m
2026-06-02 PNC1VL - Jun 2, 10:00 UTCJun 2, 12:00 UTC2h 0m
2026-06-01 PNC1VL - Jun 1, 13:20 UTCJun 1, 14:50 UTC1h 30m
2026-06-01 PNC1VL - Jun 1, 09:20 UTCJun 1, 12:05 UTC2h 45m
2026-05-31 PNC1VL - May 31, 13:20 UTCMay 31, 14:30 UTC1h 10m
2026-05-31 PNC1VL - May 31, 10:05 UTCMay 31, 11:30 UTC1h 25m
2026-05-31 PNC1VL - May 31, 08:25 UTCMay 31, 09:00 UTC35m
2026-05-30 PNC001V - May 30, 11:40 UTCMay 30, 14:40 UTC3h 0m
2026-05-30 PNC001V - May 30, 07:40 UTCMay 30, 09:30 UTC1h 50m
2026-05-29 PNC1VL - May 29, 06:55 UTCMay 29, 09:10 UTC2h 15m
2026-05-28 PNC1VL - May 28, 13:05 UTCMay 28, 14:45 UTC1h 40m
2026-05-28 PNC1VL - May 28, 12:10 UTCMay 28, 13:00 UTC50m
2026-05-28 PNC1VL BEG → ZRH May 28, 09:05 UTCMay 28, 10:35 UTC1h 30m
2026-05-27 PNC1VL - May 27, 11:30 UTCMay 27, 12:40 UTC1h 10m
2026-05-26 PNC1VL - May 26, 10:05 UTCMay 26, 11:05 UTC1h 0m
2026-05-25 PNC1VL - May 25, 13:15 UTCMay 25, 15:40 UTC2h 25m
2026-05-25 PNC1VL - May 25, 10:55 UTCMay 25, 11:15 UTC20m
2026-05-24 PNC1VL - May 24, 16:55 UTCMay 24, 17:30 UTC35m
2026-05-24 PNC1VL - May 24, 07:40 UTCMay 24, 08:10 UTC30m
2026-05-23 PNC1VL PRG → BEG May 23, 10:30 UTCMay 23, 11:45 UTC1h 15m
2026-05-22 PNC1VL - May 22, 12:10 UTCMay 22, 14:20 UTC2h 10m
2026-05-22 PNC1VL - May 22, 07:55 UTCMay 22, 10:50 UTC2h 55m
2026-05-21 PNC1VL - May 21, 13:45 UTCMay 21, 15:00 UTC1h 15m
2026-05-21 PNC1VL BEG → PRG May 21, 11:25 UTCMay 21, 12:30 UTC1h 5m
2026-05-20 PNC1VL - May 20, 15:00 UTCMay 20, 16:15 UTC1h 15m
2026-05-20 PNC1VL - May 20, 11:00 UTCMay 20, 13:30 UTC2h 30m
2026-05-20 PNC1VL - May 20, 07:10 UTCMay 20, 08:55 UTC1h 45m
2026-05-19 PNC1VL - May 19, 06:15 UTCMay 19, 08:20 UTC2h 5m
2026-05-18 PNC1VL BEG → ATH May 18, 10:25 UTCMay 18, 11:35 UTC1h 10m
2026-05-17 PNC1VL - May 17, 16:50 UTCMay 17, 17:55 UTC1h 5m
2026-05-17 PNC1VL - May 17, 13:50 UTCMay 17, 15:01 UTC1h 10m
2026-05-16 PNC1VL ZRH → BEG May 16, 14:05 UTCMay 16, 15:31 UTC1h 25m
2026-05-15 PNC1VL ATH → ZRH May 15, 10:25 UTCMay 15, 13:15 UTC2h 50m
2026-05-15 PNC1VL - May 15, 07:15 UTCMay 15, 08:25 UTC1h 10m
2026-05-14 PNC1VL - May 14, 07:35 UTCMay 14, 08:40 UTC1h 5m
2026-05-14 PNC1VL - May 14, 05:10 UTCMay 14, 06:20 UTC1h 10m
2026-05-13 PNC1VL - May 13, 10:40 UTCMay 13, 11:05 UTC25m
2026-05-13 PNC1VL - May 13, 09:35 UTCMay 13, 09:55 UTC20m
2026-05-11 PNC1VL - May 11, 14:35 UTCMay 11, 15:25 UTC50m
2026-05-11 PNC1VL - May 11, 13:25 UTCMay 11, 13:50 UTC25m
2026-05-11 PNC1VL - May 11, 08:05 UTCMay 11, 08:35 UTC30m
2026-05-09 PNC1VL NCE → BEG May 9, 16:35 UTCMay 9, 18:00 UTC1h 25m
2026-05-09 PNC1VL ATH → NCE May 9, 09:15 UTCMay 9, 11:50 UTC2h 35m
2026-05-09 PNC1VL - May 9, 06:20 UTCMay 9, 07:50 UTC1h 30m
2026-05-08 PNC1VL - May 8, 11:19 UTCMay 8, 13:10 UTC1h 50m
2026-05-08 PNC1VL - May 8, 08:40 UTCMay 8, 09:39 UTC1h 0m
2026-05-07 PNC1VL - May 7, 16:10 UTCMay 7, 16:35 UTC25m
2026-05-07 PNC1VL - May 7, 14:05 UTCMay 7, 14:30 UTC25m
2026-05-07 PNC1VL - May 7, 12:40 UTCMay 7, 13:00 UTC20m

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 YU-SVL page for operator, model, and routing details .

Mode-S 4C4AAB frequently asked

What is Mode-S code 4C4AAB?
4C4AAB is an ICAO 24-bit transponder address. Allocated to Serbia. Assigned to YU-SVL.
Where is Mode-S 4C4AAB registered?
Mode-S code 4C4AAB is allocated to Serbia (RS). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4C4AAB broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4C4AAB, octal 23045253, decimal 4,999,851.
What flights does 4C4AAB operate?
Mode-S 4C4AAB has broadcast 2 distinct callsigns, including PNC1VL, PNC001V.