Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

440BCF

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-LNZ · BOEING 757-200

Hex
440BCF
Octal
21005717
Decimal
4,459,471
Country
AT
Tail
OE-LNZ
Type
B752
No current signal · last broadcast 17h ago
Flights observed
109
Distinct callsigns
20
Country
AT
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 440BCF.

Country allocation

The ICAO 24-bit address 440BCF 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 20 distinct

Callsign Airline Flights Last seen
BCS939 European Air Transport 7 2026-04-28
BCS938 European Air Transport 7 2026-04-28
BCS92L European Air Transport 5 2026-04-28
BCS6TL European Air Transport 5 2026-04-27
BCS166 European Air Transport 5 2026-05-03
BCS9009 European Air Transport 4 2026-05-19
BCS9008 - 4 2026-05-19
BCS83C European Air Transport 3 2026-05-14
BCS4621 European Air Transport 3 2026-04-30
BCS4620 European Air Transport 3 2026-04-30
BCS427 European Air Transport 3 2026-05-28
BCS165 European Air Transport 3 2026-05-27
BCS9YP European Air Transport 2 2026-05-26
BCS87W - 2 2026-05-28
BCS821P European Air Transport 2 2026-05-26
BCS69P European Air Transport 2 2026-05-28
BCS4915 European Air Transport 2 2026-05-29
BCS491 European Air Transport 2 2026-05-26
BCS3845 European Air Transport 2 2026-05-27
BCS3844 European Air Transport 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BCS4915 BSL → MXP May 29, 20:40 UTCMay 29, 21:10 UTC30m
2026-05-29 BCS30A LEJ → CGN May 29, 02:25 UTCMay 29, 03:45 UTC1h 20m
2026-05-28 BCS427 LEJ → CGN May 28, 22:25 UTCMay 28, 23:35 UTC1h 10m
2026-05-28 BCS87W - May 28, 18:35 UTCMay 28, 19:50 UTC1h 15m
2026-05-28 BCS69P LEJ → LJU May 28, 04:10 UTCMay 28, 05:10 UTC1h 0m
2026-05-28 BCS2211 STN → LEJ May 28, 01:20 UTCMay 28, 02:40 UTC1h 20m
2026-05-27 BCS2210 LEJ → STN May 27, 22:45 UTCMay 28, 00:00 UTC1h 15m
2026-05-27 BCS3845 BLL → LEJ May 27, 20:30 UTCMay 27, 21:20 UTC50m
2026-05-27 BCS3844 LEJ → BLL May 27, 03:34 UTCMay 27, 04:30 UTC55m
2026-05-27 BCS165 LEJ → CGN May 27, 01:44 UTCMay 27, 02:24 UTC40m
2026-05-26 BCS491 BRU → CGN May 26, 23:54 UTCMay 27, 00:19 UTC25m
2026-05-26 BCS9YP FRA → LEJ May 26, 20:45 UTCMay 26, 21:34 UTC50m
2026-05-26 BCS821P LEJ → WAW May 26, 18:05 UTCMay 26, 18:45 UTC40m
2026-05-26 BCS820P LEJ → MXP May 26, 05:30 UTCMay 26, 06:10 UTC40m
2026-05-26 BCS5TM LEJ → FRA May 26, 03:09 UTCMay 26, 03:50 UTC40m
2026-05-25 BCS6GK VBS → VBS May 25, 20:40 UTCMay 25, 21:49 UTC1h 10m
2026-05-25 BCS3EC MLA → LEJ May 25, 17:05 UTCMay 25, 18:45 UTC1h 40m
2026-05-25 BCS7922 LEJ → MLA May 25, 03:40 UTCMay 25, 05:20 UTC1h 40m
2026-05-22 BCS4915 BSL → MXP May 22, 20:35 UTCMay 22, 21:15 UTC40m
2026-05-22 BCS30A LEJ → CGN May 22, 02:20 UTCMay 22, 03:45 UTC1h 25m
2026-05-21 BCS427 LEJ → CGN May 21, 22:20 UTCMay 21, 23:25 UTC1h 5m
2026-05-21 BCS87W - May 21, 18:30 UTCMay 21, 19:50 UTC1h 20m
2026-05-21 BCS69P LEJ → LJU May 21, 04:15 UTCMay 21, 05:05 UTC50m
2026-05-21 BCS2211 STN → LEJ May 21, 01:10 UTCMay 21, 02:30 UTC1h 20m
2026-05-20 BCS2210 LEJ → STN May 20, 22:45 UTCMay 21, 00:05 UTC1h 20m
2026-05-20 BCS3845 BLL → LEJ May 20, 20:30 UTCMay 20, 21:25 UTC55m
2026-05-20 BCS3844 LEJ → BLL May 20, 03:35 UTCMay 20, 04:25 UTC50m
2026-05-20 BCS165 LEJ → CGN May 20, 01:15 UTCMay 20, 02:00 UTC45m
2026-05-19 BCS822 MLA → LEJ May 19, 22:15 UTCMay 19, 23:05 UTC50m
2026-05-19 BCS9009 SOF → SOF May 19, 18:30 UTCMay 19, 20:20 UTC1h 50m
2026-05-19 BCS9008 - May 19, 04:00 UTCMay 19, 05:40 UTC1h 40m
2026-05-19 BCS165 LEJ → CGN May 19, 02:00 UTCMay 19, 02:45 UTC45m
2026-05-19 BCS491 BRU → CGN May 19, 00:15 UTCMay 19, 00:40 UTC25m
2026-05-18 BCS4GC BCN → BCN May 18, 20:30 UTCMay 18, 22:15 UTC1h 45m
2026-05-17 BCS47H LEJ → LEJ May 17, 23:05 UTCMay 18, 01:10 UTC2h 5m
2026-05-15 BCS715P - May 15, 19:35 UTCMay 15, 21:05 UTC1h 30m
2026-05-15 BCS20X CPH → SVG May 15, 05:25 UTCMay 15, 06:20 UTC55m
2026-05-14 BCS83C LEJ → CPH May 14, 22:20 UTCMay 14, 23:10 UTC50m
2026-05-14 BCS717 VIT → BLQ May 14, 06:20 UTCMay 14, 07:00 UTC40m
2026-05-14 BCS3LF LEJ → STR May 14, 03:50 UTCMay 14, 04:35 UTC45m
2026-05-13 BCS4127 LNZ → LEJ May 13, 20:00 UTCMay 13, 20:45 UTC45m
2026-05-13 BCS4126 LEJ → LNZ May 13, 03:40 UTCMay 13, 04:20 UTC40m
2026-05-13 BCS179 VIT → CPH May 13, 00:25 UTCMay 13, 01:15 UTC50m
2026-05-12 BCS83C LEJ → CPH May 12, 22:25 UTCMay 12, 23:15 UTC50m
2026-05-12 BCS9009 SOF → SOF May 12, 18:25 UTCMay 12, 20:20 UTC1h 55m
2026-05-12 BCS9008 - May 12, 03:40 UTCMay 12, 05:15 UTC1h 35m
2026-05-11 BCS83C LEJ → CPH May 11, 22:30 UTCMay 11, 22:35 UTC4m
2026-05-11 BCS9009 SOF → SOF May 11, 19:05 UTCMay 11, 20:55 UTC1h 50m
2026-05-11 BCS9008 - May 11, 02:20 UTCMay 11, 03:50 UTC1h 30m
2026-05-08 BCS9009 SOF → SOF May 8, 18:25 UTCMay 8, 20:15 UTC1h 50m

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

Mode-S 440BCF frequently asked

What is Mode-S code 440BCF?
440BCF is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-LNZ.
Where is Mode-S 440BCF registered?
Mode-S code 440BCF is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440BCF broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440BCF, octal 21005717, decimal 4,459,471.
What flights does 440BCF operate?
Mode-S 440BCF has broadcast 20 distinct callsigns, including BCS939, BCS938, BCS92L, BCS6TL, BCS166.