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sensors Mode-S transponder

506CAB

ICAO 24-bit transponder address · allocated to Slovenia

Currently assigned to S5-BBM · CESSNA 560XL Citation XLS

Hex
506CAB
Octal
24066253
Decimal
5,270,699
Country
SI
Tail
S5-BBM
Type
C56X
No current signal · last broadcast 15h ago
Flights observed
182
Distinct callsigns
5
Country
SI
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 506CAB.

Country allocation

The ICAO 24-bit address 506CAB falls within the block assigned to Slovenia (SI) by ICAO Annex 10, Volume III. Every aircraft registered in Slovenia 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 5 distinct

Callsign Airline Flights Last seen
RMB3 - 128 2026-07-20
RMB2 - 25 2026-07-18
RMB1 - 19 2026-07-16
RMB46 - 9 2026-07-11
RMB4 - 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 RMB3 RHO → LCA Jul 20, 11:40 UTCJul 20, 12:40 UTC1h 0m
2026-07-20 RMB3 - Jul 20, 09:30 UTCJul 20, 10:30 UTC1h 0m
2026-07-20 RMB3 - Jul 20, 05:45 UTCJul 20, 08:10 UTC2h 25m
2026-07-19 RMB3 - Jul 19, 13:35 UTCJul 19, 16:35 UTC3h 0m
2026-07-19 RMB3 ATH → ISL Jul 19, 11:55 UTCJul 19, 12:50 UTC55m
2026-07-19 RMB3 - Jul 19, 09:25 UTCJul 19, 10:25 UTC1h 0m
2026-07-19 RMB3 - Jul 19, 06:05 UTCJul 19, 08:05 UTC2h 0m
2026-07-18 RMB2 ATH → OLB Jul 18, 12:45 UTCJul 18, 14:50 UTC2h 5m
2026-07-18 RMB2 NCE → ATH Jul 18, 09:00 UTCJul 18, 11:05 UTC2h 5m
2026-07-17 RMB3 - Jul 17, 05:55 UTCJul 17, 07:05 UTC1h 10m
2026-07-17 RMB3 BEG → IBZ Jul 17, 01:35 UTCJul 17, 04:04 UTC2h 30m
2026-07-16 RMB1 - Jul 16, 22:35 UTCJul 16, 23:55 UTC1h 20m
2026-07-16 RMB1 IBZ → ISL Jul 16, 06:20 UTCJul 16, 09:20 UTC3h 0m
2026-07-15 RMB3 - Jul 15, 16:40 UTCJul 15, 17:45 UTC1h 5m
2026-07-15 RMB3 - Jul 15, 15:00 UTCJul 15, 16:05 UTC1h 5m
2026-07-15 RMB3 - Jul 15, 09:10 UTCJul 15, 10:20 UTC1h 10m
2026-07-14 RMB3 - Jul 14, 14:40 UTCJul 14, 16:10 UTC1h 30m
2026-07-14 RMB3 - Jul 14, 12:20 UTCJul 14, 13:30 UTC1h 10m
2026-07-14 RMB3 BCN → GVA Jul 14, 08:45 UTCJul 14, 09:50 UTC1h 5m
2026-07-13 RMB3 - Jul 13, 17:20 UTCJul 13, 18:25 UTC1h 5m
2026-07-13 RMB3 - Jul 13, 14:30 UTCJul 13, 15:20 UTC50m
2026-07-13 RMB3 - Jul 13, 11:40 UTCJul 13, 13:25 UTC1h 45m
2026-07-13 RMB3 - Jul 13, 09:05 UTCJul 13, 10:25 UTC1h 20m
2026-07-11 RMB46 SOU → RMI Jul 11, 17:35 UTCJul 11, 19:20 UTC1h 45m
2026-07-11 RMB3 - Jul 11, 13:05 UTCJul 11, 13:50 UTC45m
2026-07-11 RMB3 - Jul 11, 09:15 UTCJul 11, 10:45 UTC1h 30m
2026-07-11 RMB3 SOU → PSA Jul 11, 06:15 UTCJul 11, 08:10 UTC1h 55m
2026-07-10 RMB46 RMI → SOU Jul 10, 12:50 UTCJul 10, 15:05 UTC2h 15m
2026-07-10 RMB3 - Jul 10, 08:45 UTCJul 10, 11:05 UTC2h 20m
2026-07-09 RMB3 - Jul 9, 11:45 UTCJul 9, 14:45 UTC3h 0m
2026-07-09 RMB3 VIE → LBG Jul 9, 07:35 UTCJul 9, 09:25 UTC1h 50m
2026-07-08 RMB3 BER → VIE Jul 8, 16:50 UTCJul 8, 17:45 UTC55m
2026-07-08 RMB3 - Jul 8, 09:20 UTCJul 8, 11:10 UTC1h 50m
2026-07-07 RMB3 - Jul 7, 09:10 UTCJul 7, 10:40 UTC1h 30m
2026-07-07 RMB3 - Jul 7, 07:10 UTCJul 7, 07:50 UTC40m
2026-07-06 RMB3 - Jul 6, 13:15 UTCJul 6, 14:05 UTC50m
2026-07-06 RMB3 - Jul 6, 10:45 UTCJul 6, 11:55 UTC1h 10m
2026-07-06 RMB3 - Jul 6, 08:25 UTCJul 6, 09:25 UTC1h 0m
2026-07-05 RMB3 BEG → LBG Jul 5, 11:10 UTCJul 5, 13:30 UTC2h 20m
2026-07-05 RMB3 - Jul 5, 08:05 UTCJul 5, 09:20 UTC1h 15m
2026-07-03 RMB2 - Jul 3, 14:45 UTCJul 3, 15:15 UTC30m
2026-07-03 RMB2 - Jul 3, 09:30 UTCJul 3, 11:50 UTC2h 20m
2026-07-02 RMB1 - Jul 2, 13:05 UTCJul 2, 15:20 UTC2h 15m
2026-07-02 RMB1 - Jul 2, 08:50 UTCJul 2, 11:45 UTC2h 55m
2026-07-01 RMB1 - Jul 1, 17:50 UTCJul 1, 20:15 UTC2h 25m
2026-07-01 RMB3 - Jul 1, 16:30 UTCJul 1, 16:55 UTC25m
2026-07-01 RMB3 - Jul 1, 13:35 UTCJul 1, 15:05 UTC1h 30m
2026-07-01 RMB3 - Jul 1, 07:20 UTCJul 1, 08:10 UTC50m
2026-06-30 RMB3 - Jun 30, 12:00 UTCJun 30, 12:40 UTC40m
2026-06-30 RMB3 - Jun 30, 10:10 UTCJun 30, 10:40 UTC30m

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 S5-BBM page for operator, model, and routing details .

Mode-S 506CAB frequently asked

What is Mode-S code 506CAB?
506CAB is an ICAO 24-bit transponder address. Allocated to Slovenia. Assigned to S5-BBM.
Where is Mode-S 506CAB registered?
Mode-S code 506CAB is allocated to Slovenia (SI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 506CAB broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 506CAB, octal 24066253, decimal 5,270,699.
What flights does 506CAB operate?
Mode-S 506CAB has broadcast 5 distinct callsigns, including RMB3, RMB2, RMB1, RMB46, RMB4.