Apparatus

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sensors Mode-S transponder

448423

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-AAC · AIRPLANE FACTORY Sling 2

Hex
448423
Octal
21102043
Decimal
4,490,275
Country
BE
Tail
OO-AAC
Type
SLG2
No current signal · last broadcast 14h ago
Flights observed
117
Distinct callsigns
1
Country
BE
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 448423.

Country allocation

The ICAO 24-bit address 448423 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 1 distinct

Callsign Airline Flights Last seen
OOAAC - 117 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 OOAAC ANR → ANR May 29, 14:20 UTCMay 29, 15:20 UTC1h 0m
2026-05-29 OOAAC ANR → ANR May 29, 11:50 UTCMay 29, 13:25 UTC1h 35m
2026-05-29 OOAAC ANR → ANR May 29, 10:05 UTCMay 29, 10:30 UTC25m
2026-05-29 OOAAC ANR → ANR May 29, 09:20 UTCMay 29, 09:45 UTC25m
2026-05-29 OOAAC ANR → ANR May 29, 06:55 UTCMay 29, 08:10 UTC1h 15m
2026-05-28 OOAAC ANR → ANR May 28, 12:30 UTCMay 28, 13:40 UTC1h 10m
2026-05-28 OOAAC ANR → ANR May 28, 10:25 UTCMay 28, 10:55 UTC30m
2026-05-28 OOAAC ANR → ANR May 28, 09:40 UTCMay 28, 10:10 UTC30m
2026-05-27 OOAAC - May 27, 13:45 UTCMay 27, 14:15 UTC30m
2026-05-27 OOAAC ANR → ANR May 27, 13:15 UTCMay 27, 13:30 UTC15m
2026-05-27 OOAAC ANR → ANR May 27, 11:05 UTCMay 27, 12:05 UTC1h 0m
2026-05-26 OOAAC ANR → ANR May 26, 15:14 UTCMay 26, 16:24 UTC1h 10m
2026-05-26 OOAAC - May 26, 13:19 UTCMay 26, 13:45 UTC25m
2026-05-26 OOAAC - May 26, 12:14 UTCMay 26, 12:45 UTC30m
2026-05-26 OOAAC ANR → ANR May 26, 09:45 UTCMay 26, 10:54 UTC1h 10m
2026-05-25 OOAAC ANR → ANR May 25, 15:50 UTCMay 25, 16:55 UTC1h 5m
2026-05-25 OOAAC - May 25, 14:10 UTCMay 25, 14:20 UTC10m
2026-05-25 OOAAC ANR → OBL May 25, 13:00 UTCMay 25, 13:25 UTC25m
2026-05-25 OOAAC ANR → ANR May 25, 09:50 UTCMay 25, 11:30 UTC1h 40m
2026-05-25 OOAAC ANR → ANR May 25, 06:55 UTCMay 25, 08:00 UTC1h 5m
2026-05-24 OOAAC ANR → ANR May 24, 15:20 UTCMay 24, 16:25 UTC1h 5m
2026-05-24 OOAAC - May 24, 13:10 UTCMay 24, 14:30 UTC1h 20m
2026-05-24 OOAAC - May 24, 10:50 UTCMay 24, 11:30 UTC40m
2026-05-23 OOAAC - May 23, 17:50 UTCMay 23, 18:20 UTC31m
2026-05-23 OOAAC - May 23, 15:15 UTCMay 23, 16:20 UTC1h 5m
2026-05-23 OOAAC ANR → ANR May 23, 11:20 UTCMay 23, 12:50 UTC1h 30m
2026-05-23 OOAAC ANR → ANR May 23, 09:00 UTCMay 23, 10:25 UTC1h 25m
2026-05-23 OOAAC - May 23, 07:45 UTCMay 23, 08:00 UTC15m
2026-05-22 OOAAC - May 22, 14:20 UTCMay 22, 15:40 UTC1h 20m
2026-05-22 OOAAC ANR → ANR May 22, 11:40 UTCMay 22, 13:20 UTC1h 40m
2026-05-22 OOAAC ANR → ANR May 22, 09:45 UTCMay 22, 10:25 UTC40m
2026-05-21 OOAAC ANR → ANR May 21, 15:50 UTCMay 21, 16:55 UTC1h 5m
2026-05-21 OOAAC ANR → ANR May 21, 12:30 UTCMay 21, 13:40 UTC1h 10m
2026-05-21 OOAAC ANR → ANR May 21, 09:55 UTCMay 21, 11:10 UTC1h 15m
2026-05-21 OOAAC ANR → ANR May 21, 07:10 UTCMay 21, 08:40 UTC1h 30m
2026-05-20 OOAAC ANR → ANR May 20, 12:35 UTCMay 20, 13:15 UTC40m
2026-05-20 OOAAC ANR → ANR May 20, 09:55 UTCMay 20, 10:55 UTC1h 0m
2026-05-20 OOAAC ANR → ANR May 20, 07:25 UTCMay 20, 08:20 UTC55m
2026-05-16 OOAAC ANR → ANR May 16, 08:05 UTCMay 16, 08:51 UTC45m
2026-05-15 OOAAC ANR → ANR May 15, 14:15 UTCMay 15, 15:45 UTC1h 29m
2026-05-15 OOAAC ANR → ANR May 15, 11:40 UTCMay 15, 13:15 UTC1h 35m
2026-05-15 OOAAC - May 15, 09:15 UTCMay 15, 09:35 UTC20m
2026-05-15 OOAAC ANR → ANR May 15, 09:00 UTCMay 15, 09:10 UTC10m
2026-05-15 OOAAC ANR → ANR May 15, 06:45 UTCMay 15, 07:55 UTC1h 10m
2026-05-12 OOAAC ANR → ANR May 12, 15:25 UTCMay 12, 16:40 UTC1h 15m
2026-05-09 OOAAC ANR → ANR May 9, 14:10 UTCMay 9, 15:35 UTC1h 25m
2026-05-09 OOAAC ANR → ANR May 9, 11:45 UTCMay 9, 12:55 UTC1h 10m
2026-05-08 OOAAC ANR → ANR May 8, 14:20 UTCMay 8, 15:35 UTC1h 15m
2026-05-08 OOAAC - May 8, 12:00 UTCMay 8, 13:10 UTC1h 10m
2026-05-08 OOAAC ANR → ANR May 8, 10:39 UTCMay 8, 11:34 UTC55m

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

Mode-S 448423 frequently asked

What is Mode-S code 448423?
448423 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-AAC.
Where is Mode-S 448423 registered?
Mode-S code 448423 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 448423 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 448423, octal 21102043, decimal 4,490,275.
What flights does 448423 operate?
Mode-S 448423 has broadcast 1 distinct callsign, including OOAAC.