Apparatus

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sensors Mode-S transponder

440188

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-HLA · EMBRAER EMB-550 Praetor 600

Hex
440188
Octal
21000610
Decimal
4,456,840
Country
AT
Tail
OE-HLA
Type
E550
No current signal · last broadcast 2h ago
Flights observed
175
Distinct callsigns
1
Country
AT
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 440188.

Country allocation

The ICAO 24-bit address 440188 falls within the block assigned to Austria (AT) by ICAO Annex 10, Volume III. Every aircraft registered in Austria 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
OECCB - 175 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OECCB - Jul 14, 08:15 UTCJul 14, 08:40 UTC25m
2026-07-14 OECCB - Jul 14, 06:50 UTCJul 14, 07:30 UTC40m
2026-07-13 OECCB - Jul 13, 13:50 UTCJul 13, 14:25 UTC35m
2026-07-13 OECCB - Jul 13, 12:40 UTCJul 13, 13:10 UTC30m
2026-07-13 OECCB - Jul 13, 09:35 UTCJul 13, 11:10 UTC1h 35m
2026-07-13 OECCB - Jul 13, 07:05 UTCJul 13, 08:35 UTC1h 30m
2026-07-11 OECCB - Jul 11, 09:30 UTCJul 11, 09:50 UTC20m
2026-07-11 OECCB - Jul 11, 07:25 UTCJul 11, 08:50 UTC1h 25m
2026-07-11 OECCB - Jul 11, 06:10 UTCJul 11, 06:50 UTC40m
2026-07-10 OECCB - Jul 10, 11:40 UTCJul 10, 12:25 UTC45m
2026-07-10 OECCB - Jul 10, 10:30 UTCJul 10, 11:00 UTC30m
2026-07-10 OECCB - Jul 10, 08:35 UTCJul 10, 09:15 UTC40m
2026-07-10 OECCB - Jul 10, 07:05 UTCJul 10, 07:20 UTC15m
2026-07-10 OECCB - Jul 10, 06:20 UTCJul 10, 07:00 UTC40m
2026-07-09 OECCB - Jul 9, 14:10 UTCJul 9, 14:50 UTC40m
2026-07-09 OECCB - Jul 9, 09:25 UTCJul 9, 10:00 UTC35m
2026-07-08 OECCB - Jul 8, 16:15 UTCJul 8, 17:20 UTC1h 5m
2026-07-08 OECCB - Jul 8, 13:50 UTCJul 8, 14:15 UTC25m
2026-07-08 OECCB - Jul 8, 13:00 UTCJul 8, 13:15 UTC15m
2026-07-08 OECCB - Jul 8, 07:30 UTCJul 8, 08:00 UTC30m
2026-07-08 OECCB - Jul 8, 06:10 UTCJul 8, 06:45 UTC35m
2026-07-06 OECCB - Jul 6, 11:50 UTCJul 6, 12:40 UTC50m
2026-07-06 OECCB - Jul 6, 09:25 UTCJul 6, 09:50 UTC25m
2026-07-06 OECCB - Jul 6, 06:20 UTCJul 6, 08:20 UTC2h 0m
2026-07-04 OECCB - Jul 4, 11:30 UTCJul 4, 12:20 UTC50m
2026-07-04 OECCB - Jul 4, 08:10 UTCJul 4, 09:30 UTC1h 20m
2026-07-03 OECCB - Jul 3, 12:50 UTCJul 3, 13:20 UTC30m
2026-07-03 OECCB - Jul 3, 09:45 UTCJul 3, 10:10 UTC25m
2026-07-03 OECCB - Jul 3, 09:00 UTCJul 3, 09:15 UTC15m
2026-07-03 OECCB - Jul 3, 06:20 UTCJul 3, 07:25 UTC1h 5m
2026-07-02 OECCB - Jul 2, 16:00 UTCJul 2, 16:30 UTC30m
2026-07-02 OECCB - Jul 2, 14:20 UTCJul 2, 14:40 UTC20m
2026-07-02 OECCB - Jul 2, 12:00 UTCJul 2, 13:05 UTC1h 5m
2026-07-01 OECCB - Jul 1, 12:20 UTCJul 1, 13:10 UTC50m
2026-07-01 OECCB - Jul 1, 10:25 UTCJul 1, 10:50 UTC25m
2026-07-01 OECCB - Jul 1, 07:40 UTCJul 1, 08:45 UTC1h 5m
2026-07-01 OECCB - Jul 1, 06:30 UTCJul 1, 06:55 UTC25m
2026-06-30 OECCB - Jun 30, 15:30 UTCJun 30, 16:15 UTC45m
2026-06-30 OECCB - Jun 30, 12:40 UTCJun 30, 14:05 UTC1h 25m
2026-06-30 OECCB - Jun 30, 10:00 UTCJun 30, 10:35 UTC35m
2026-06-30 OECCB - Jun 30, 08:40 UTCJun 30, 09:25 UTC45m
2026-06-30 OECCB - Jun 30, 07:20 UTCJun 30, 08:00 UTC40m
2026-06-30 OECCB - Jun 30, 06:20 UTCJun 30, 06:45 UTC25m
2026-06-29 OECCB - Jun 29, 08:50 UTCJun 29, 10:34 UTC1h 45m
2026-06-27 OECCB - Jun 27, 08:14 UTCJun 27, 08:39 UTC25m
2026-06-27 OECCB - Jun 27, 07:24 UTCJun 27, 07:34 UTC10m
2026-06-26 OECCB - Jun 26, 06:15 UTCJun 26, 07:35 UTC1h 20m
2026-06-25 OECCB - Jun 25, 14:29 UTCJun 25, 14:55 UTC25m
2026-06-25 OECCB - Jun 25, 08:24 UTCJun 25, 09:05 UTC40m
2026-06-25 OECCB - Jun 25, 07:15 UTCJun 25, 07:34 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 OE-HLA page for operator, model, and routing details .

Mode-S 440188 frequently asked

What is Mode-S code 440188?
440188 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-HLA.
Where is Mode-S 440188 registered?
Mode-S code 440188 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440188 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 440188, octal 21000610, decimal 4,456,840.
What flights does 440188 operate?
Mode-S 440188 has broadcast 1 distinct callsign, including OECCB.