Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

440C31

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-LKY · AIRBUS A-319

Hex
440C31
Octal
21006061
Decimal
4,459,569
Country
AT
Tail
OE-LKY
Type
A319
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
600
Distinct callsigns
20
Country
AT
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 440C31.

Country allocation

The ICAO 24-bit address 440C31 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
EJU79JH - 12 2026-07-15
EJU75KF - 12 2026-07-15
EJU72XR - 12 2026-07-15
EJU67BR easyJet Europe 12 2026-06-05
EJU52DB - 12 2026-07-15
EJU39GT - 12 2026-07-15
EJU17MC - 12 2026-07-15
EJU58UD easyJet Europe 10 2026-06-05
EJU97VK easyJet Europe 8 2026-07-25
EJU63AG - 7 2026-07-17
EJU54YE - 7 2026-07-14
EJU95ZU - 6 2026-07-14
EJU84ZE - 6 2026-04-24
EJU81RA easyJet Europe 6 2026-07-26
EJU75RH - 6 2026-07-14
EJU64AM - 6 2026-07-14
EJU56KD easyJet Europe 6 2026-06-04
EJU48FY easyJet Europe 6 2026-06-04
EJU31MZ easyJet Europe 6 2026-07-26
EJU13UC easyJet Europe 6 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EJU17TX BER → PMI Jul 26, 20:15 UTCJul 26, 22:15 UTC2h 0m
2026-07-26 EJU91FL PMI → BER Jul 26, 16:20 UTCJul 26, 18:40 UTC2h 20m
2026-07-26 EJU81RA NTE → PMI Jul 26, 13:45 UTCJul 26, 15:10 UTC1h 25m
2026-07-26 EJU7305 PMI → NTE Jul 26, 08:25 UTCJul 26, 09:35 UTC1h 10m
2026-07-26 EJU31MZ CDG → BRS Jul 26, 05:45 UTCJul 26, 07:20 UTC1h 36m
2026-07-25 EJU39NR BRS → PMI Jul 25, 20:15 UTCJul 25, 22:10 UTC1h 55m
2026-07-25 EJU97VK PMI → BRS Jul 25, 16:35 UTCJul 25, 18:40 UTC2h 5m
2026-07-25 EJU51MA - Jul 25, 14:00 UTCJul 25, 15:35 UTC1h 35m
2026-07-25 EJU59PL PMI → CDG Jul 25, 10:55 UTCJul 25, 12:40 UTC1h 45m
2026-07-25 EJU56CR BSL → PMI Jul 25, 08:15 UTCJul 25, 09:50 UTC1h 35m
2026-07-25 EJU65GF PMI → BSL Jul 25, 05:20 UTCJul 25, 06:50 UTC1h 30m
2026-07-24 EJU14DU CDG → BHX Jul 24, 19:20 UTCJul 24, 20:35 UTC1h 15m
2026-07-24 EJU7285 PMI → GVA Jul 24, 17:05 UTCJul 24, 18:25 UTC1h 20m
2026-07-24 EJU81RA - Jul 24, 14:30 UTCJul 24, 15:50 UTC1h 20m
2026-07-24 EJU31MZ CDG → BRS Jul 24, 12:20 UTCJul 24, 13:40 UTC1h 20m
2026-07-24 EJU45KH MXP → LIS Jul 24, 08:40 UTCJul 24, 10:35 UTC1h 55m
2026-07-24 EJU79AU PMI → LGW Jul 24, 05:10 UTCJul 24, 07:20 UTC2h 10m
2026-07-23 EJU36YP GVA → AMS Jul 23, 20:05 UTCJul 23, 22:15 UTC2h 10m
2026-07-23 EJU62VM - Jul 23, 17:10 UTCJul 23, 19:15 UTC2h 5m
2026-07-23 EJU81RA - Jul 23, 14:40 UTCJul 23, 16:00 UTC1h 20m
2026-07-23 EJU31MZ CDG → BRS Jul 23, 12:30 UTCJul 23, 13:50 UTC1h 20m
2026-07-23 EJU53DE LTN → PMI Jul 23, 08:30 UTCJul 23, 10:30 UTC2h 0m
2026-07-23 EJU62GX PMI → LTN Jul 23, 05:10 UTCJul 23, 07:25 UTC2h 15m
2026-07-22 EJU39NR BRS → PMI Jul 22, 21:05 UTCJul 22, 22:55 UTC1h 50m
2026-07-22 EJU97VK - Jul 22, 18:20 UTCJul 22, 20:25 UTC2h 5m
2026-07-22 EJU52FY BHX → PMI Jul 22, 14:40 UTCJul 22, 16:45 UTC2h 5m
2026-07-22 EJU62VM - Jul 22, 11:35 UTCJul 22, 13:35 UTC2h 0m
2026-07-22 EJU65GF PMI → BSL Jul 22, 04:50 UTCJul 22, 10:25 UTC5h 35m
2026-07-21 EJU16UP GVA → PMI Jul 21, 21:00 UTCJul 21, 22:15 UTC1h 15m
2026-07-21 EJU93WQ PMI → GVA Jul 21, 17:45 UTCJul 21, 19:05 UTC1h 20m
2026-07-21 EJU87DG NAP → PMI Jul 21, 15:05 UTCJul 21, 16:40 UTC1h 35m
2026-07-21 EJU61VB PMI → NAP Jul 21, 12:20 UTCJul 21, 13:45 UTC1h 25m
2026-07-21 EJU49HG ZRH → PMI Jul 21, 08:50 UTCJul 21, 10:30 UTC1h 40m
2026-07-21 EJU32DG PMI → ZRH Jul 21, 05:40 UTCJul 21, 07:15 UTC1h 35m
2026-07-20 EJU81RA - Jul 20, 15:25 UTCJul 20, 16:50 UTC1h 25m
2026-07-20 EJU31MZ CDG → BRS Jul 20, 13:20 UTCJul 20, 14:40 UTC1h 20m
2026-07-20 EJU52FY BHX → PMI Jul 20, 08:35 UTCJul 20, 10:35 UTC2h 0m
2026-07-20 EJU62VM - Jul 20, 05:25 UTCJul 20, 07:35 UTC2h 10m
2026-07-19 EJU71QM - Jul 19, 19:35 UTCJul 19, 22:05 UTC2h 30m
2026-07-19 EJU98ZU - Jul 19, 16:00 UTCJul 19, 18:35 UTC2h 35m
2026-07-19 EJU53FY - Jul 19, 13:55 UTCJul 19, 14:40 UTC45m
2026-07-19 EJU72DA - Jul 19, 12:10 UTCJul 19, 13:00 UTC50m
2026-07-19 EJU53DE LTN → PMI Jul 19, 08:35 UTCJul 19, 10:35 UTC2h 0m
2026-07-19 EJU62GX PMI → LTN Jul 19, 05:20 UTCJul 19, 07:20 UTC2h 0m
2026-07-18 EJU56EW NAP → ORY Jul 18, 18:05 UTCJul 18, 20:35 UTC2h 30m
2026-07-18 EJU95HP - Jul 18, 14:30 UTCJul 18, 17:05 UTC2h 35m
2026-07-18 EJU32EY BER → PMI Jul 18, 09:00 UTCJul 18, 11:25 UTC2h 25m
2026-07-18 EJU65NU - Jul 18, 05:35 UTCJul 18, 07:45 UTC2h 10m
2026-07-17 EJU69XQ - Jul 17, 18:40 UTCJul 17, 21:20 UTC2h 40m
2026-07-17 EJU64BU - Jul 17, 14:44 UTCJul 17, 17:20 UTC2h 35m

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

Mode-S 440C31 frequently asked

What is Mode-S code 440C31?
440C31 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-LKY.
Where is Mode-S 440C31 registered?
Mode-S code 440C31 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440C31 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440C31, octal 21006061, decimal 4,459,569.
What flights does 440C31 operate?
Mode-S 440C31 has broadcast 20 distinct callsigns, including EJU79JH, EJU75KF, EJU72XR, EJU67BR, EJU52DB.