Apparatus

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sensors Mode-S transponder

4401E4

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-LQD · AIRBUS A-319

Hex
4401E4
Octal
21000744
Decimal
4,456,932
Country
AT
Tail
OE-LQD
Type
A319
Broadcasting now · callsign EJU98ZL · 37,975 ft
Flights observed
628
Distinct callsigns
20
Country
AT
Last broadcast
Jul 26, 19:50 UTC

Current position

4401E4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4401E4 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
EJU91PK easyJet Europe 13 2026-05-21
EJU69MZ - 13 2026-05-21
EJU74LY easyJet Europe 9 2026-04-17
EJU79UM easyJet Europe 8 2026-05-19
EJU47PT easyJet Europe 8 2026-05-19
EJU898A - 7 2026-06-21
EJU78LQ easyJet Europe 7 2026-06-14
EJU75HM - 7 2026-06-14
EJU506N - 7 2026-06-21
EJU86YG - 6 2026-06-19
EJU61MN - 6 2026-06-19
EJU56KD easyJet Europe 6 2026-05-20
EJU18TV easyJet Europe 6 2026-04-17
EJU16WK easyJet Europe 6 2026-04-17
EJU83CB - 5 2026-06-21
EJU81MN - 5 2026-06-24
EJU72ZN - 5 2026-06-21
EJU67FD easyJet Europe 5 2026-06-13
EJU48FY easyJet Europe 5 2026-05-20
EJU12UT - 5 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EJU51QX ATH → AGP Jul 26, 18:35 UTCJul 26, 19:50 UTC1h 15m
2026-07-26 EJU35XM PMI → NCL Jul 26, 16:25 UTCJul 26, 17:25 UTC1h 0m
2026-07-26 EJU92MA IBZ → AMS Jul 26, 13:00 UTCJul 26, 15:15 UTC2h 15m
2026-07-26 EJU53MR AMS → IBZ Jul 26, 09:30 UTCJul 26, 11:45 UTC2h 15m
2026-07-26 EJU57HA LGW → AMS Jul 26, 07:15 UTCJul 26, 07:55 UTC40m
2026-07-26 EJU74CD AMS → LGW Jul 26, 05:20 UTCJul 26, 06:05 UTC45m
2026-07-25 EJU92MA IBZ → AMS Jul 25, 18:30 UTCJul 25, 20:45 UTC2h 15m
2026-07-25 EJU53MR AMS → IBZ Jul 25, 15:20 UTCJul 25, 17:30 UTC2h 10m
2026-07-25 EJU58NR LIN → AMS Jul 25, 12:05 UTCJul 25, 13:30 UTC1h 25m
2026-07-25 EJU71NE AMS → LIN Jul 25, 09:50 UTCJul 25, 11:05 UTC1h 15m
2026-07-25 EJU57VZ EDI → AMS Jul 25, 07:45 UTCJul 25, 08:50 UTC1h 5m
2026-07-25 EJU14RX AMS → EDI Jul 25, 05:15 UTCJul 25, 06:20 UTC1h 5m
2026-07-24 EJU62MY MXP → AMS Jul 24, 14:25 UTCJul 24, 15:50 UTC1h 25m
2026-07-24 EJU87UG AMS → MXP Jul 24, 12:10 UTCJul 24, 13:25 UTC1h 15m
2026-07-24 EJU58NR LIN → AMS Jul 24, 09:40 UTCJul 24, 11:10 UTC1h 30m
2026-07-24 EJU71NE AMS → LIN Jul 24, 06:30 UTCJul 24, 07:45 UTC1h 15m
2026-07-23 EJU3859 CDG → FUE Jul 23, 18:45 UTCJul 23, 20:15 UTC1h 30m
2026-07-23 EJU35CP BOD → MXP Jul 23, 16:40 UTCJul 23, 17:50 UTC1h 10m
2026-07-23 EJU3961 MXP → CIY Jul 23, 14:20 UTCJul 23, 15:35 UTC1h 15m
2026-07-23 EJU52ZF AMS → MXP Jul 23, 12:15 UTCJul 23, 13:30 UTC1h 15m
2026-07-23 EJU31CU VLC → AMS Jul 23, 09:00 UTCJul 23, 11:15 UTC2h 15m
2026-07-23 EJU7879 - Jul 23, 05:50 UTCJul 23, 07:45 UTC1h 55m
2026-07-22 EJU42XL GVA → AMS Jul 22, 18:20 UTCJul 22, 19:35 UTC1h 15m
2026-07-22 EJU7867 GVA → AMS Jul 22, 16:10 UTCJul 22, 17:20 UTC1h 10m
2026-07-22 EJU56ZT BHX → AMS Jul 22, 14:20 UTCJul 22, 15:05 UTC45m
2026-07-22 EJU57EB AMS → BHX Jul 22, 12:20 UTCJul 22, 13:10 UTC50m
2026-07-21 EJU58NR LIN → AMS Jul 21, 17:40 UTCJul 21, 19:00 UTC1h 20m
2026-07-21 EJU71NE AMS → LIN Jul 21, 15:25 UTCJul 21, 16:40 UTC1h 15m
2026-07-21 EJU7826 PSA → AMS Jul 21, 09:55 UTCJul 21, 12:20 UTC2h 25m
2026-07-21 EJU7825 AMS → PSA Jul 21, 05:25 UTCJul 21, 07:20 UTC1h 55m
2026-07-20 EJU62MY MXP → AMS Jul 20, 22:10 UTCJul 20, 22:20 UTC10m
2026-07-20 EJU62MY MXP → AMS Jul 20, 18:35 UTCJul 20, 20:00 UTC1h 25m
2026-07-20 EJU56WR SVQ → MXP Jul 20, 15:25 UTCJul 20, 17:25 UTC2h 0m
2026-07-20 EJU81EB LIS → MXP Jul 20, 12:15 UTCJul 20, 14:35 UTC2h 20m
2026-07-20 EJU84QM AGP → MXP Jul 20, 08:35 UTCJul 20, 10:30 UTC1h 55m
2026-07-20 EJU54MF MXP → AGP Jul 20, 04:20 UTCJul 20, 06:45 UTC2h 25m
2026-07-19 EJU89AW ATH → MXP Jul 19, 21:30 UTCJul 20, 00:00 UTC2h 30m
2026-07-19 EJU19DF MXP → ATH Jul 19, 18:20 UTCJul 19, 20:25 UTC2h 5m
2026-07-19 EJU32RM KGS → MXP Jul 19, 14:10 UTCJul 19, 16:50 UTC2h 40m
2026-07-19 EJU51VJ MXP → KGS Jul 19, 10:45 UTCJul 19, 13:05 UTC2h 20m
2026-07-19 EJU51NB - Jul 19, 07:10 UTCJul 19, 09:20 UTC2h 10m
2026-07-19 EJU79KH - Jul 19, 04:15 UTCJul 19, 06:10 UTC1h 55m
2026-07-18 EJU19ZD EFL → MXP Jul 18, 19:35 UTCJul 18, 21:30 UTC1h 55m
2026-07-18 EJU84NB MXP → EFL Jul 18, 17:05 UTCJul 18, 18:50 UTC1h 45m
2026-07-18 EJU71BD OLB → MXP Jul 18, 15:15 UTCJul 18, 16:10 UTC55m
2026-07-18 EJU862B MXP → OLB Jul 18, 13:15 UTCJul 18, 14:20 UTC1h 5m
2026-07-18 EJU97HN CAG → MXP Jul 18, 11:05 UTCJul 18, 12:00 UTC55m
2026-07-18 EJU1659 - Jul 18, 09:15 UTCJul 18, 09:50 UTC35m
2026-07-18 EJU15NQ CAG → NCE Jul 18, 07:25 UTCJul 18, 08:15 UTC50m
2026-07-18 EJU606U MXP → CAG Jul 18, 04:15 UTCJul 18, 05:15 UTC1h 0m

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

Mode-S 4401E4 frequently asked

What is Mode-S code 4401E4?
4401E4 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-LQD.
Where is Mode-S 4401E4 registered?
Mode-S code 4401E4 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4401E4 broadcasting right now?
Yes. Mode-S 4401E4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4401E4, octal 21000744, decimal 4,456,932.
What flights does 4401E4 operate?
Mode-S 4401E4 has broadcast 20 distinct callsigns, including EJU91PK, EJU69MZ, EJU74LY, EJU79UM, EJU47PT.