Apparatus

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sensors Mode-S transponder

44CCC6

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-SFF · AIRBUS A-330-300

Hex
44CCC6
Octal
21146306
Decimal
4,508,870
Country
BE
Tail
OO-SFF
Type
A333
No current signal · last broadcast Jul 25, 03:45 UTC
Flights observed
109
Distinct callsigns
20
Country
BE
Last broadcast
Jul 25, 03:45 UTC

Last known position

Most recent position reported by Mode-S 44CCC6.

Country allocation

The ICAO 24-bit address 44CCC6 falls within the block assigned to Belgium (BE) by ICAO Annex 10, Volume III. Every aircraft registered in Belgium 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
BEL4BE - 16 2026-07-19
BEL37K Brussels Airlines 13 2026-07-23
BEL39G Brussels Airlines 9 2026-07-21
BEL52B Brussels Airlines 8 2026-07-23
BEL38K Brussels Airlines 8 2026-06-10
BEL8VB Brussels Airlines 7 2026-06-09
BEL4KE - 5 2026-07-09
BEL1CP Brussels Airlines 5 2026-07-22
BEL2RG Brussels Airlines 4 2026-07-18
BEL7MX - 3 2026-07-11
BEL5YH Brussels Airlines 3 2026-07-03
BEL2XJ Brussels Airlines 3 2026-07-18
BEL2FU - 3 2026-07-03
BEL9TK - 2 2026-06-22
BEL9901 Brussels Airlines 2 2026-04-25
BEL8LE Brussels Airlines 2 2026-07-17
BEL8AN - 2 2026-06-30
BEL5RH Brussels Airlines 2 2026-06-15
BEL3YG - 2 2026-06-16
BEL26D Brussels Airlines 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 BEL21W BRU → FNA Jul 24, 11:35 UTCJul 25, 03:35 UTC16h 0m
2026-07-23 BEL37K BRU → FIH Jul 23, 13:55 UTCJul 24, 07:15 UTC17h 20m
2026-07-23 BEL52B JFK → BRU Jul 23, 00:00 UTCJul 23, 05:35 UTC5h 35m
2026-07-22 BEL52B JFK → BRU Jul 22, 22:45 UTCJul 22, 23:55 UTC1h 10m
2026-07-22 BEL1CP BRU → JFK Jul 22, 11:15 UTCJul 22, 17:55 UTC6h 40m
2026-07-21 BEL39G BRU → DLA Jul 21, 02:00 UTCJul 21, 03:55 UTC1h 55m
2026-07-20 BEL39G BRU → DLA Jul 20, 21:50 UTCJul 20, 22:05 UTC15m
2026-07-20 BEL39G BRU → DLA Jul 20, 20:05 UTCJul 20, 20:25 UTC20m
2026-07-20 BEL39G BRU → DLA Jul 20, 10:50 UTCJul 20, 12:40 UTC1h 50m
2026-07-19 BEL4BE - Jul 19, 09:35 UTCJul 20, 05:15 UTC19h 40m
2026-07-19 BEL4BE - Jul 19, 08:45 UTCJul 20, 05:15 UTC20h 30m
2026-07-18 BEL2XJ DSS → BRU Jul 18, 21:30 UTCJul 19, 02:45 UTC5h 15m
2026-07-18 BEL2RG BRU → DSS Jul 18, 11:15 UTCJul 18, 17:00 UTC5h 45m
2026-07-17 BEL8LE OUA → BRU Jul 17, 09:35 UTCJul 18, 03:35 UTC18h 1m
2026-07-16 BEL1BQ BRU → BRU Jul 16, 11:40 UTCJul 17, 03:10 UTC15h 30m
2026-07-15 BEL4BE - Jul 15, 09:35 UTCJul 16, 04:50 UTC19h 15m
2026-07-15 BEL4BE - Jul 15, 09:15 UTCJul 16, 04:50 UTC19h 35m
2026-07-14 BEL6ZD BRU → BRU Jul 14, 09:35 UTCJul 15, 03:15 UTC17h 39m
2026-07-14 BEL39G - Jul 14, 01:35 UTCJul 14, 03:30 UTC1h 55m
2026-07-13 BEL39G - Jul 13, 21:10 UTCJul 13, 21:25 UTC15m
2026-07-13 BEL39G - Jul 13, 19:25 UTCJul 13, 19:50 UTC25m
2026-07-13 BEL39G - Jul 13, 11:30 UTCJul 13, 13:25 UTC1h 55m
2026-07-12 BEL4BE - Jul 12, 09:35 UTCJul 13, 05:35 UTC20h 0m
2026-07-12 BEL4BE BRU → BRU Jul 12, 09:05 UTCJul 13, 05:35 UTC20h 30m
2026-07-11 BEL7MX - Jul 11, 18:05 UTCJul 12, 03:05 UTC9h 0m
2026-07-11 BEL7MX - Jul 11, 10:55 UTCJul 11, 16:40 UTC5h 45m
2026-07-10 BEL1NA - Jul 10, 09:35 UTCJul 11, 04:15 UTC18h 40m
2026-07-10 BEL1NA - Jul 10, 08:50 UTCJul 11, 04:15 UTC19h 25m
2026-07-09 BEL4KE - Jul 9, 09:35 UTCJul 10, 04:20 UTC18h 45m
2026-07-09 BEL4KE BRU → BRU Jul 9, 08:45 UTCJul 10, 04:20 UTC19h 35m
2026-07-08 BEL37K - Jul 8, 10:50 UTCJul 9, 04:05 UTC17h 15m
2026-07-07 BEL4KE - Jul 7, 09:05 UTCJul 8, 04:30 UTC19h 25m
2026-07-06 BEL39G BRU → BRU Jul 6, 11:20 UTCJul 7, 03:35 UTC16h 15m
2026-07-05 BEL4BE - Jul 5, 09:35 UTCJul 6, 05:10 UTC19h 35m
2026-07-05 BEL4BE BRU → BRU Jul 5, 08:50 UTCJul 6, 05:10 UTC20h 20m
2026-07-03 BEL5YH IAD → BRU Jul 3, 22:00 UTCJul 4, 05:05 UTC7h 5m
2026-07-03 BEL2FU - Jul 3, 09:20 UTCJul 3, 17:30 UTC8h 10m
2026-07-02 BEL2XJ DSS → BRU Jul 2, 21:50 UTCJul 3, 03:05 UTC5h 15m
2026-07-02 BEL2RG BRU → DSS Jul 2, 16:30 UTCJul 2, 16:50 UTC20m
2026-07-02 BEL2RG BRU → DSS Jul 2, 11:15 UTCJul 2, 14:00 UTC2h 45m
2026-07-01 BEL4BE - Jul 1, 09:35 UTCJul 2, 05:00 UTC19h 25m
2026-07-01 BEL4BE - Jul 1, 08:50 UTCJul 2, 05:00 UTC20h 10m
2026-06-30 BEL26D CKY → DSS Jun 30, 22:25 UTCJul 1, 03:50 UTC5h 25m
2026-06-30 BEL26D CKY → DSS Jun 30, 21:00 UTCJun 30, 21:20 UTC20m
2026-06-30 BEL8AN - Jun 30, 16:35 UTCJun 30, 17:15 UTC40m
2026-06-30 BEL8AN - Jun 30, 10:10 UTCJun 30, 15:35 UTC5h 25m
2026-06-29 BEL37K - Jun 29, 11:29 UTCJun 30, 04:40 UTC17h 11m
2026-06-28 BEL4BE - Jun 28, 09:34 UTCJun 29, 05:09 UTC19h 35m
2026-06-28 BEL4BE - Jun 28, 09:20 UTCJun 29, 05:09 UTC19h 50m
2026-06-27 BEL37K BRU → BRU Jun 27, 11:09 UTCJun 28, 04:50 UTC17h 40m

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 OO-SFF page for operator, model, and routing details .

Mode-S 44CCC6 frequently asked

What is Mode-S code 44CCC6?
44CCC6 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-SFF.
Where is Mode-S 44CCC6 registered?
Mode-S code 44CCC6 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44CCC6 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 03:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44CCC6, octal 21146306, decimal 4,508,870.
What flights does 44CCC6 operate?
Mode-S 44CCC6 has broadcast 20 distinct callsigns, including BEL4BE, BEL37K, BEL39G, BEL52B, BEL38K.