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 EJU54KW · 38,000 ft
Flights observed
286
Distinct callsigns
20
Country
AT
Last broadcast
1h ago

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
EJU56KD easyJet Europe 6 2026-05-20
EJU18TV easyJet Europe 6 2026-04-17
EJU16WK easyJet Europe 6 2026-04-17
EJU48FY easyJet Europe 5 2026-05-20
EJU12CB easyJet Europe 5 2026-04-16
EJU85LP easyJet Europe 4 2026-05-15
EJU82YV easyJet Europe 4 2026-04-16
EJU82XG easyJet Europe 4 2026-05-10
EJU82FR easyJet Europe 4 2026-05-15
EJU71EN easyJet Europe 4 2026-05-16
EJU68CH easyJet Europe 4 2026-05-21
EJU54YM easyJet Europe 4 2026-04-16
EJU52NG easyJet Europe 4 2026-05-10
EJU48QF easyJet Europe 4 2026-05-21
EJU36VF easyJet Europe 4 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EJU81MN LYS → PMO May 30, 09:20 UTCMay 30, 10:40 UTC1h 20m
2026-05-30 EJU691Q NCE → NTE May 30, 07:35 UTCMay 30, 08:30 UTC55m
2026-05-30 EJU857Y LYS → TLS May 30, 05:15 UTCMay 30, 06:15 UTC1h 0m
2026-05-29 EJU508X BOD → LYS May 29, 20:00 UTCMay 29, 20:50 UTC50m
2026-05-29 EJU486M LYS → BOD May 29, 18:15 UTCMay 29, 19:00 UTC45m
2026-05-29 EJU474D LRH → LYS May 29, 16:40 UTCMay 29, 17:30 UTC50m
2026-05-29 EJU516K LYS → LRH May 29, 15:00 UTCMay 29, 15:50 UTC50m
2026-05-29 EJU73AY MAD → LYS May 29, 12:35 UTCMay 29, 13:50 UTC1h 15m
2026-05-29 EJU4391 LYS → MAD May 29, 09:35 UTCMay 29, 10:55 UTC1h 20m
2026-05-29 EJU72BA LGW → LYS May 29, 07:30 UTCMay 29, 08:45 UTC1h 15m
2026-05-29 EJU73DX LYS → LGW May 29, 05:05 UTCMay 29, 06:15 UTC1h 10m
2026-05-28 EJU871W NTE → LYS May 28, 20:00 UTCMay 28, 20:55 UTC55m
2026-05-28 EJU736V LYS → NTE May 28, 17:55 UTCMay 28, 18:50 UTC55m
2026-05-28 EJU54CZ BRS → CDG May 28, 15:20 UTCMay 28, 17:15 UTC1h 55m
2026-05-28 EJU4389 LYS → FNC May 28, 12:40 UTCMay 28, 14:35 UTC1h 55m
2026-05-28 EJU508X BOD → LYS May 28, 11:00 UTCMay 28, 11:50 UTC50m
2026-05-28 EJU486M LYS → BOD May 28, 09:25 UTCMay 28, 10:15 UTC50m
2026-05-28 EJU828E TLS → LYS May 28, 07:00 UTCMay 28, 07:40 UTC40m
2026-05-28 EJU475W LYS → TLS May 28, 05:10 UTCMay 28, 05:55 UTC45m
2026-05-27 EJU508X BOD → LYS May 27, 19:45 UTCMay 27, 20:35 UTC50m
2026-05-27 EJU486M - May 27, 18:05 UTCMay 27, 18:55 UTC50m
2026-05-27 EJU624C TLS → LYS May 27, 16:35 UTCMay 27, 17:15 UTC40m
2026-05-27 EJU837T LYS → TLS May 27, 14:55 UTCMay 27, 15:40 UTC45m
2026-05-27 EJU72ZN BRI → LYS May 27, 12:00 UTCMay 27, 13:35 UTC1h 35m
2026-05-27 EJU83CB LYS → BRI May 27, 09:30 UTCMay 27, 11:10 UTC1h 40m
2026-05-27 EJU72BA LGW → LYS May 27, 07:30 UTCMay 27, 08:40 UTC1h 10m
2026-05-27 EJU73DX LYS → LGW May 27, 04:59 UTCMay 27, 06:15 UTC1h 15m
2026-05-26 EJU61MN LIS → PRG May 26, 21:14 UTCMay 26, 22:20 UTC1h 5m
2026-05-26 EJU86YG LYS → FCO May 26, 19:10 UTCMay 26, 20:15 UTC1h 5m
2026-05-26 EJU898A NTE → LYS May 26, 17:20 UTCMay 26, 18:14 UTC55m
2026-05-26 EJU506N LYS → NTE May 26, 15:39 UTCMay 26, 16:35 UTC55m
2026-05-26 EJU89PK MXP → AMS May 26, 13:15 UTCMay 26, 14:20 UTC1h 5m
2026-05-26 EJU76YV LYS → MAH May 26, 11:20 UTCMay 26, 12:24 UTC1h 5m
2026-05-26 EJU13CX CTA → LYS May 26, 08:39 UTCMay 26, 10:25 UTC1h 45m
2026-05-26 EJU95YZ CFU → MXP May 26, 05:30 UTCMay 26, 07:15 UTC1h 45m
2026-05-25 EJU75HM ATH → LYS May 25, 18:30 UTCMay 25, 20:50 UTC2h 20m
2026-05-25 EJU78LQ LYS → ATH May 25, 14:45 UTCMay 25, 17:25 UTC2h 40m
2026-05-25 EJU86JL BIQ → LYS May 25, 11:10 UTCMay 25, 12:45 UTC1h 35m
2026-05-25 EJU13BR KGS → MXP May 25, 08:35 UTCMay 25, 10:20 UTC1h 45m
2026-05-25 EJU474D LRH → LYS May 25, 06:50 UTCMay 25, 07:40 UTC50m
2026-05-25 EJU516K LYS → LRH May 25, 05:05 UTCMay 25, 06:00 UTC55m
2026-05-24 EJU72ZN BRI → LYS May 24, 19:10 UTCMay 24, 20:40 UTC1h 30m
2026-05-24 EJU83CB LYS → BRI May 24, 16:40 UTCMay 24, 18:20 UTC1h 40m
2026-05-24 EJU96HC VCE → LYS May 24, 14:45 UTCMay 24, 15:45 UTC1h 0m
2026-05-24 EJU81TD LYS → VCE May 24, 12:35 UTCMay 24, 13:45 UTC1h 10m
2026-05-24 EJU386B BIA → LYS May 24, 10:45 UTCMay 24, 11:30 UTC45m
2026-05-24 EJU149N LYS → BIA May 24, 08:55 UTCMay 24, 09:45 UTC50m
2026-05-24 EJU898A NTE → LYS May 24, 07:05 UTCMay 24, 08:00 UTC55m
2026-05-24 EJU506N LYS → NTE May 24, 04:55 UTCMay 24, 05:55 UTC1h 0m
2026-05-23 EJU82DZ FNC → LYS May 23, 19:10 UTCMay 23, 22:20 UTC3h 10m

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.