sensors Mode-S transponder

440611

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-ISB · AIRBUS A-321neo

Hex
440611
Octal
21003021
Decimal
4,458,001
Country
AT
Tail
OE-ISB
Type
A21N
Broadcasting now · callsign EJU12HZ · 4,775 ft
Flights observed
11
Distinct callsigns
8
Country
AT
Last broadcast
12h ago

Current position

440611 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 440611 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 8 distinct

Callsign Airline Flights Last seen
EJU69XP easyJet Europe 2 2026-04-13
EJU64CX - 2 2026-04-13
EJU37DZ easyJet Europe 2 2026-04-14
EJU74WC - 1 2026-04-12
EJU71FV easyJet Europe 1 2026-04-12
EJU63QZ - 1 2026-04-13
EJU56NB - 1 2026-04-13
EJU17FM - 1 2026-04-14

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 EJU17FM - Apr 14, 09:35 UTCApr 14, 11:05 UTC1h 30m
2026-04-14 EJU37DZ BIQ → NCE Apr 14, 07:10 UTCApr 14, 08:25 UTC1h 15m
2026-04-14 EJU37DZ BIQ → NCE Apr 14, 06:10 UTCApr 14, 07:10 UTC1h 0m
2026-04-13 EJU64CX - Apr 13, 19:50 UTCApr 13, 20:25 UTC35m
2026-04-13 EJU64CX - Apr 13, 19:00 UTCApr 13, 20:10 UTC1h 10m
2026-04-13 EJU56NB - Apr 13, 16:20 UTCApr 13, 17:40 UTC1h 20m
2026-04-13 EJU63QZ - Apr 13, 12:20 UTCApr 13, 15:05 UTC2h 45m
2026-04-13 EJU69XP MXP → TFS Apr 13, 07:55 UTCApr 13, 11:20 UTC3h 25m
2026-04-13 EJU69XP MXP → TFS Apr 13, 05:35 UTCApr 13, 08:05 UTC2h 30m
2026-04-12 EJU74WC - Apr 12, 23:55 UTCApr 13, 00:20 UTC25m
2026-04-12 EJU71FV MXP → RAK Apr 12, 17:15 UTCApr 12, 19:35 UTC2h 20m

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

Mode-S 440611 frequently asked

What is Mode-S code 440611?
440611 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-ISB.
Where is Mode-S 440611 registered?
Mode-S code 440611 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440611 broadcasting right now?
Yes. Mode-S 440611 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440611, octal 21003021, decimal 4,458,001.
What flights does 440611 operate?
Mode-S 440611 has broadcast 8 distinct callsigns, including EJU69XP, EJU64CX, EJU37DZ, EJU74WC, EJU71FV.