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 21h ago
Flights observed
175
Distinct callsigns
1
Country
BE
Last broadcast
21h 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 - 175 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 OOAAC ANR → ANR Jul 13, 08:35 UTCJul 13, 10:00 UTC1h 25m
2026-07-11 OOAAC ANR → ANR Jul 11, 08:45 UTCJul 11, 10:20 UTC1h 35m
2026-07-10 OOAAC ANR → ANR Jul 10, 11:45 UTCJul 10, 13:10 UTC1h 25m
2026-07-07 OOAAC - Jul 7, 15:30 UTCJul 7, 15:45 UTC15m
2026-07-01 OOAAC - Jul 1, 10:10 UTCJul 1, 10:30 UTC20m
2026-06-29 OOAAC - Jun 29, 15:24 UTCJun 29, 15:45 UTC20m
2026-06-29 OOAAC - Jun 29, 14:34 UTCJun 29, 14:54 UTC20m
2026-06-29 OOAAC ANR → ANR Jun 29, 13:59 UTCJun 29, 14:09 UTC10m
2026-06-29 OOAAC ANR → ANR Jun 29, 07:55 UTCJun 29, 08:19 UTC25m
2026-06-29 OOAAC ANR → ANR Jun 29, 06:44 UTCJun 29, 07:34 UTC50m
2026-06-27 OOAAC ANR → ANR Jun 27, 07:55 UTCJun 27, 09:19 UTC1h 25m
2026-06-26 OOAAC ANR → ANR Jun 26, 12:00 UTCJun 26, 13:24 UTC1h 25m
2026-06-26 OOAAC ANR → ANR Jun 26, 07:35 UTCJun 26, 08:10 UTC35m
2026-06-26 OOAAC ANR → ANR Jun 26, 07:10 UTCJun 26, 07:24 UTC15m
2026-06-21 OOAAC ANR → ANR Jun 21, 09:29 UTCJun 21, 10:54 UTC1h 25m
2026-06-21 OOAAC ANR → ANR Jun 21, 06:50 UTCJun 21, 08:15 UTC1h 25m
2026-06-19 OOAAC ANR → ANR Jun 19, 14:24 UTCJun 19, 15:44 UTC1h 20m
2026-06-19 OOAAC - Jun 19, 13:14 UTCJun 19, 13:34 UTC20m
2026-06-19 OOAAC - Jun 19, 12:04 UTCJun 19, 12:44 UTC40m
2026-06-19 OOAAC ANR → ANR Jun 19, 09:44 UTCJun 19, 10:59 UTC1h 15m
2026-06-19 OOAAC ANR → ANR Jun 19, 07:14 UTCJun 19, 08:24 UTC1h 10m
2026-06-18 OOAAC - Jun 18, 07:40 UTCJun 18, 08:00 UTC20m
2026-06-18 OOAAC - Jun 18, 06:25 UTCJun 18, 07:10 UTC45m
2026-06-16 OOAAC ANR → ANR Jun 16, 16:20 UTCJun 16, 17:55 UTC1h 35m
2026-06-16 OOAAC ANR → ANR Jun 16, 06:30 UTCJun 16, 10:55 UTC4h 25m
2026-06-15 OOAAC ANR → ANR Jun 15, 14:40 UTCJun 15, 16:49 UTC2h 10m
2026-06-15 OOAAC ANR → ANR Jun 15, 12:19 UTCJun 15, 13:05 UTC45m
2026-06-15 OOAAC ANR → ANR Jun 15, 11:45 UTCJun 15, 12:00 UTC15m
2026-06-15 OOAAC ANR → ANR Jun 15, 09:30 UTCJun 15, 10:20 UTC50m
2026-06-15 OOAAC ANR → ANR Jun 15, 06:45 UTCJun 15, 07:55 UTC1h 10m
2026-06-13 OOAAC - Jun 13, 19:00 UTCJun 13, 19:35 UTC35m
2026-06-13 OOAAC - Jun 13, 17:35 UTCJun 13, 18:10 UTC35m
2026-06-13 OOAAC ANR → ANR Jun 13, 14:35 UTCJun 13, 15:00 UTC25m
2026-06-13 OOAAC ANR → ANR Jun 13, 14:00 UTCJun 13, 14:25 UTC25m
2026-06-13 OOAAC ANR → ANR Jun 13, 11:45 UTCJun 13, 12:35 UTC50m
2026-06-13 OOAAC ANR → ANR Jun 13, 08:45 UTCJun 13, 10:05 UTC1h 20m
2026-06-12 OOAAC ANR → ANR Jun 12, 14:10 UTCJun 12, 15:15 UTC1h 5m
2026-06-11 OOAAC ANR → ANR Jun 11, 07:05 UTCJun 11, 08:20 UTC1h 15m
2026-06-08 OOAAC ANR → ANR Jun 8, 11:45 UTCJun 8, 12:35 UTC50m
2026-06-08 OOAAC ANR → ANR Jun 8, 09:20 UTCJun 8, 10:10 UTC50m
2026-06-08 OOAAC ANR → ANR Jun 8, 06:55 UTCJun 8, 08:00 UTC1h 5m
2026-06-07 OOAAC - Jun 7, 14:00 UTCJun 7, 14:30 UTC30m
2026-06-07 OOAAC - Jun 7, 11:55 UTCJun 7, 13:30 UTC1h 35m
2026-06-07 OOAAC ANR → ANR Jun 7, 09:45 UTCJun 7, 11:15 UTC1h 30m
2026-06-07 OOAAC ANR → ANR Jun 7, 06:50 UTCJun 7, 08:20 UTC1h 30m
2026-06-06 OOAAC ANR → ANR Jun 6, 08:50 UTCJun 6, 10:04 UTC1h 15m
2026-06-05 OOAAC ANR → ANR Jun 5, 14:15 UTCJun 5, 15:55 UTC1h 40m
2026-06-05 OOAAC ANR → ANR Jun 5, 11:50 UTCJun 5, 13:00 UTC1h 10m
2026-06-03 OOAAC ANR → ANR Jun 3, 11:05 UTCJun 3, 12:05 UTC1h 0m
2026-06-03 OOAAC ANR → ANR Jun 3, 09:15 UTCJun 3, 10:20 UTC1h 5m

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 21h 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.