Apparatus

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sensors Mode-S transponder

4400EC

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-IVU · AIRBUS A-320

Hex
4400EC
Octal
21000354
Decimal
4,456,684
Country
AT
Tail
OE-IVU
Type
A320
Broadcasting now · callsign EJU53RZ · 37,000 ft
Flights observed
550
Distinct callsigns
20
Country
AT
Last broadcast
58m ago

Current position

4400EC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4400EC 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
EJU84YJ - 7 2026-06-19
EJU16RZ - 7 2026-06-19
EJU62BF - 6 2026-06-19
EJU98PT - 5 2026-06-19
EJU98EV easyJet Europe 5 2026-06-19
EJU964F easyJet Europe 5 2026-05-10
EJU92NJ - 5 2026-07-14
EJU897F - 5 2026-07-14
EJU87BT - 5 2026-07-14
EJU824J easyJet Europe 5 2026-05-10
EJU62ZB - 5 2026-06-19
EJU5437 - 5 2026-06-21
EJU512B - 5 2026-07-14
EJU86EN easyJet Europe 4 2026-05-05
EJU798L easyJet Europe 4 2026-05-12
EJU73DE - 4 2026-06-18
EJU65XF - 4 2026-06-06
EJU653N easyJet Europe 4 2026-05-12
EJU597V easyJet Europe 4 2026-05-08
EJU53RZ - 4 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 EJU53RZ - Jul 15, 06:40 UTCJul 15, 07:00 UTC20m
2026-07-14 EJU1860 - Jul 14, 19:30 UTCJul 14, 21:40 UTC2h 10m
2026-07-14 EJU81FY - Jul 14, 14:35 UTCJul 14, 17:25 UTC2h 50m
2026-07-14 EJU897F - Jul 14, 12:55 UTCJul 14, 13:45 UTC50m
2026-07-14 EJU512B - Jul 14, 11:05 UTCJul 14, 11:50 UTC45m
2026-07-14 EJU87BT LGW → BOD Jul 14, 08:25 UTCJul 14, 09:35 UTC1h 10m
2026-07-14 EJU92NJ BOD → LGW Jul 14, 05:10 UTCJul 14, 06:20 UTC1h 10m
2026-07-13 EJU67FU MAH → BOD Jul 13, 21:05 UTCJul 13, 22:15 UTC1h 10m
2026-07-13 EJU1857 BOD → MAH Jul 13, 19:05 UTCJul 13, 20:05 UTC1h 0m
2026-07-13 EJU45UM BRU → BOD Jul 13, 16:45 UTCJul 13, 18:00 UTC1h 15m
2026-07-13 EJU95NR - Jul 13, 14:30 UTCJul 13, 15:35 UTC1h 5m
2026-07-13 EJU1930 - Jul 13, 12:00 UTCJul 13, 13:40 UTC1h 40m
2026-07-13 EJU57EJ - Jul 13, 08:55 UTCJul 13, 10:30 UTC1h 35m
2026-07-13 EJU734Z - Jul 13, 07:05 UTCJul 13, 08:05 UTC1h 0m
2026-07-13 EJU396U - Jul 13, 05:05 UTCJul 13, 05:55 UTC50m
2026-07-12 EJU831F - Jul 12, 21:05 UTCJul 12, 21:55 UTC50m
2026-07-12 EJU457D - Jul 12, 19:15 UTCJul 12, 20:01 UTC45m
2026-07-12 EJU87BE - Jul 12, 16:05 UTCJul 12, 18:25 UTC2h 20m
2026-07-12 EJU97VF BOD → BUD Jul 12, 12:45 UTCJul 12, 14:50 UTC2h 5m
2026-07-12 EJU84RT - Jul 12, 09:10 UTCJul 12, 11:40 UTC2h 30m
2026-07-12 EJU83XD - Jul 12, 04:20 UTCJul 12, 07:40 UTC3h 20m
2026-07-11 EJU1814 PMO → BOD Jul 11, 22:25 UTCJul 12, 00:30 UTC2h 5m
2026-07-11 EJU38EH - Jul 11, 18:50 UTCJul 11, 20:45 UTC1h 55m
2026-07-11 EJU734Z - Jul 11, 16:30 UTCJul 11, 17:20 UTC50m
2026-07-11 EJU396U - Jul 11, 14:30 UTCJul 11, 15:20 UTC50m
2026-07-11 EJU96XP - Jul 11, 10:20 UTCJul 11, 13:30 UTC3h 10m
2026-07-11 EJU86LC - Jul 11, 05:15 UTCJul 11, 08:10 UTC2h 55m
2026-07-10 EJU926B - Jul 10, 19:10 UTCJul 10, 20:15 UTC1h 5m
2026-07-10 EJU958Q - Jul 10, 17:15 UTCJul 10, 18:20 UTC1h 5m
2026-07-10 EJU567E - Jul 10, 15:15 UTCJul 10, 16:10 UTC55m
2026-07-10 EJU185D - Jul 10, 13:10 UTCJul 10, 14:05 UTC55m
2026-07-10 EJU571M NCE → BOD Jul 10, 11:00 UTCJul 10, 12:00 UTC1h 0m
2026-07-10 EJU413F BOD → NCE Jul 10, 08:55 UTCJul 10, 10:00 UTC1h 5m
2026-07-10 EJU1830 NCE → BOD Jul 10, 06:40 UTCJul 10, 07:40 UTC1h 0m
2026-07-10 EJU1829 BOD → NCE Jul 10, 04:35 UTCJul 10, 05:35 UTC1h 0m
2026-07-09 EJU831F - Jul 9, 19:45 UTCJul 9, 20:35 UTC50m
2026-07-09 EJU457D BOD → MRS Jul 9, 18:00 UTCJul 9, 18:55 UTC55m
2026-07-09 EJU42HZ - Jul 9, 16:20 UTCJul 9, 17:25 UTC1h 5m
2026-07-09 EJU45FH - Jul 9, 14:25 UTCJul 9, 15:30 UTC1h 5m
2026-07-09 EJU897F - Jul 9, 12:25 UTCJul 9, 13:25 UTC1h 0m
2026-07-09 EJU512B - Jul 9, 10:30 UTCJul 9, 11:20 UTC50m
2026-07-09 EJU87BT LGW → BOD Jul 9, 08:25 UTCJul 9, 09:35 UTC1h 10m
2026-07-09 EJU92NJ BOD → LGW Jul 9, 05:10 UTCJul 9, 06:25 UTC1h 15m
2026-07-08 EJU37LR BOD → BOD Jul 8, 13:50 UTCJul 8, 19:15 UTC5h 25m
2026-07-08 EJU897F - Jul 8, 11:30 UTCJul 8, 12:10 UTC40m
2026-07-08 EJU512B - Jul 8, 09:40 UTCJul 8, 10:30 UTC50m
2026-07-08 EJU87BT LGW → BOD Jul 8, 07:45 UTCJul 8, 08:50 UTC1h 5m
2026-07-08 EJU92NJ BOD → LGW Jul 8, 05:10 UTCJul 8, 06:25 UTC1h 15m
2026-07-07 EJU1860 - Jul 7, 17:45 UTCJul 7, 20:35 UTC2h 50m
2026-07-07 EJU81FY - Jul 7, 13:25 UTCJul 7, 15:20 UTC1h 55m

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

Mode-S 4400EC frequently asked

What is Mode-S code 4400EC?
4400EC is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-IVU.
Where is Mode-S 4400EC registered?
Mode-S code 4400EC is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4400EC broadcasting right now?
Yes. Mode-S 4400EC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4400EC, octal 21000354, decimal 4,456,684.
What flights does 4400EC operate?
Mode-S 4400EC has broadcast 20 distinct callsigns, including EJU84YJ, EJU16RZ, EJU62BF, EJU98PT, EJU98EV.