Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 EJU71CT · 5,950 ft
Flights observed
560
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
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
2026-07-15 EJU61HF PMI → MPL Jul 15, 05:05 UTCJul 15, 06:00 UTC55m
2026-07-14 EJU69XQ - Jul 14, 20:05 UTCJul 14, 22:40 UTC2h 35m
2026-07-14 EJU64BU - Jul 14, 16:45 UTCJul 14, 19:15 UTC2h 30m
2026-07-14 EJU48NC - Jul 14, 14:35 UTCJul 14, 15:40 UTC1h 5m
2026-07-14 EJU67GL - Jul 14, 11:55 UTCJul 14, 13:00 UTC1h 5m
2026-07-14 EJU53DE - Jul 14, 08:40 UTCJul 14, 10:40 UTC2h 0m
2026-07-14 EJU62GX - Jul 14, 05:20 UTCJul 14, 07:20 UTC2h 0m
2026-07-13 EJU42YB - Jul 13, 20:40 UTCJul 13, 22:30 UTC1h 50m
2026-07-13 EJU64GE - Jul 13, 17:45 UTCJul 13, 19:50 UTC2h 5m
2026-07-13 EJU16UP - Jul 13, 15:15 UTCJul 13, 16:25 UTC1h 10m
2026-07-13 EJU93WQ - Jul 13, 12:55 UTCJul 13, 14:20 UTC1h 25m
2026-07-13 EJU14TQ - Jul 13, 09:15 UTCJul 13, 12:00 UTC2h 45m
2026-07-13 EJU84PN - Jul 13, 05:31 UTCJul 13, 08:05 UTC2h 35m
2026-07-12 EJU39NR - Jul 12, 19:15 UTCJul 12, 21:20 UTC2h 5m
2026-07-12 EJU97VK - Jul 12, 16:05 UTCJul 12, 18:05 UTC2h 0m
2026-07-12 EJU71CT - Jul 12, 14:10 UTCJul 12, 15:10 UTC1h 0m
2026-07-12 EJU61HF PMI → MPL Jul 12, 12:30 UTCJul 12, 13:25 UTC55m
2026-07-12 EJU72MK - Jul 12, 08:40 UTCJul 12, 11:01 UTC2h 20m
2026-07-12 EJU13PT - Jul 12, 05:30 UTCJul 12, 07:45 UTC2h 15m
2026-07-11 EJU15WN - Jul 11, 20:35 UTCJul 11, 22:45 UTC2h 10m
2026-07-11 EJU12DQ - Jul 11, 16:50 UTCJul 11, 19:05 UTC2h 15m
2026-07-11 EJU16UP - Jul 11, 13:50 UTCJul 11, 15:05 UTC1h 15m
2026-07-11 EJU93WQ - Jul 11, 11:20 UTCJul 11, 12:50 UTC1h 30m
2026-07-11 EJU34WP - Jul 11, 08:25 UTCJul 11, 10:10 UTC1h 45m
2026-07-11 EJU7295 - Jul 11, 06:05 UTCJul 11, 07:35 UTC1h 30m
2026-07-10 EJU15WN - Jul 10, 19:25 UTCJul 10, 21:35 UTC2h 10m
2026-07-10 EJU12DQ - Jul 10, 16:05 UTCJul 10, 18:20 UTC2h 15m
2026-07-10 EJU87TH - Jul 10, 12:40 UTCJul 10, 14:10 UTC1h 30m
2026-07-10 EJU75FG - Jul 10, 10:00 UTCJul 10, 11:35 UTC1h 35m
2026-07-10 EJU93RP - Jul 10, 07:30 UTCJul 10, 08:50 UTC1h 20m
2026-07-10 EJU51PG - Jul 10, 05:10 UTCJul 10, 06:25 UTC1h 15m
2026-07-09 EJU36YP - Jul 9, 19:45 UTCJul 9, 21:50 UTC2h 5m
2026-07-09 EJU62VM - Jul 9, 16:55 UTCJul 9, 19:00 UTC2h 5m
2026-07-09 EJU81RA - Jul 9, 14:35 UTCJul 9, 16:00 UTC1h 25m
2026-07-09 EJU31MZ - Jul 9, 12:20 UTCJul 9, 13:35 UTC1h 15m
2026-07-09 EJU53DE - Jul 9, 08:50 UTCJul 9, 10:50 UTC2h 0m
2026-07-09 EJU62GX PMI → LTN Jul 9, 05:35 UTCJul 9, 07:45 UTC2h 10m
2026-07-08 EJU83VC - Jul 8, 19:50 UTCJul 8, 22:00 UTC2h 10m
2026-07-08 EJU49KY - Jul 8, 16:50 UTCJul 8, 19:05 UTC2h 15m
2026-07-08 EJU72PQ - Jul 8, 13:55 UTCJul 8, 15:45 UTC1h 50m
2026-07-08 EJU51TY - Jul 8, 10:35 UTCJul 8, 12:40 UTC2h 5m
2026-07-08 EJU56CR - Jul 8, 07:10 UTCJul 8, 08:35 UTC1h 25m
2026-07-08 EJU65GF - Jul 8, 04:35 UTCJul 8, 06:15 UTC1h 40m
2026-07-07 EJU69XQ GLA → PMI Jul 7, 20:00 UTCJul 7, 22:25 UTC2h 25m
2026-07-07 EJU64BU - Jul 7, 16:35 UTCJul 7, 19:10 UTC2h 35m
2026-07-07 EJU59TY - Jul 7, 12:35 UTCJul 7, 14:45 UTC2h 10m
2026-07-07 EJU87YF - Jul 7, 10:05 UTCJul 7, 11:30 UTC1h 25m
2026-07-07 EJU69DQ - Jul 7, 07:30 UTCJul 7, 08:45 UTC1h 15m
2026-07-07 EJU72PR CPH → BER Jul 7, 05:50 UTCJul 7, 06:30 UTC40m
2026-07-07 EJU5261 - Jul 7, 04:10 UTCJul 7, 05:00 UTC50m

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.