Apparatus

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sensors Mode-S transponder

4D2509

ICAO 24-bit transponder address

Currently assigned to 9H-EUN · AIRBUS A-320

Hex
4D2509
Octal
23222411
Decimal
5,055,753
Tail
9H-EUN
Type
A320
No current signal · last broadcast 5h ago
Flights observed
242
Distinct callsigns
20
Country
-
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4D2509.

Callsign history 20 distinct

Callsign Airline Flights Last seen
EWG86C - 7 2026-07-16
EWG60W - 7 2026-07-16
EWG53K - 7 2026-07-16
EWG31G - 7 2026-07-17
EWG2WE - 6 2026-07-19
EWG2QR Eurowings 6 2026-07-17
EWG5R Eurowings 5 2026-07-15
EWG9XN - 4 2026-07-07
EWG9TZ - 4 2026-07-07
EWG9SP - 4 2026-07-09
EWG9RZ Eurowings 4 2026-07-07
EWG8PR - 4 2026-07-12
EWG7XR - 4 2026-07-21
EWG79B - 4 2026-07-06
EWG74TE - 4 2026-07-11
EWG5ZA Eurowings 4 2026-07-07
EWG53L - 4 2026-07-13
EWG42M - 4 2026-07-08
EWG41W Eurowings 4 2026-07-12
EWG3LR - 4 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 EWG80BG - Jul 24, 16:15 UTCJul 24, 18:20 UTC2h 5m
2026-07-24 EWG9XY PMI → DUS Jul 24, 12:45 UTCJul 24, 14:55 UTC2h 10m
2026-07-24 EWG6900 STR → VIE Jul 24, 04:10 UTCJul 24, 06:05 UTC1h 55m
2026-07-23 EWG7Y ARN → DUS Jul 23, 16:05 UTCJul 23, 17:35 UTC1h 30m
2026-07-23 EWG7JF - Jul 23, 13:20 UTCJul 23, 15:10 UTC1h 50m
2026-07-23 EWG3YT ARN → DUS Jul 23, 10:25 UTCJul 23, 11:55 UTC1h 30m
2026-07-23 EWG1JA MXP → CGN Jul 23, 07:45 UTCJul 23, 09:25 UTC1h 40m
2026-07-23 EWG4672 ARN → DUS Jul 23, 05:05 UTCJul 23, 06:35 UTC1h 30m
2026-07-22 EWG7VK HAM → ARN Jul 22, 20:20 UTCJul 22, 21:30 UTC1h 10m
2026-07-22 EWG7VK ARN → HAM Jul 22, 18:05 UTCJul 22, 19:15 UTC1h 10m
2026-07-22 EWG6900 STR → VIE Jul 22, 15:25 UTCJul 22, 17:00 UTC1h 35m
2026-07-21 EWG7XR VIE → CGN Jul 21, 19:50 UTCJul 21, 21:05 UTC1h 15m
2026-07-21 EWG7XR CGN → VIE Jul 21, 17:40 UTCJul 21, 18:50 UTC1h 10m
2026-07-21 EWG3FE - Jul 21, 14:15 UTCJul 21, 16:15 UTC2h 0m
2026-07-21 EWG3CL CGN → PMI Jul 21, 11:10 UTCJul 21, 13:05 UTC1h 55m
2026-07-21 EWG86P PMI → CGN Jul 21, 07:00 UTCJul 21, 09:00 UTC2h 0m
2026-07-21 EWG4LQ - Jul 21, 03:40 UTCJul 21, 05:50 UTC2h 10m
2026-07-20 EWG24Y CGN → PMI Jul 20, 13:20 UTCJul 20, 18:25 UTC5h 5m
2026-07-20 EWG535 - Jul 20, 09:20 UTCJul 20, 11:50 UTC2h 30m
2026-07-20 EWG92Q - Jul 20, 04:20 UTCJul 20, 07:05 UTC2h 45m
2026-07-19 EWG85Z - Jul 19, 19:45 UTCJul 19, 21:05 UTC1h 20m
2026-07-19 EWG2RH - Jul 19, 17:20 UTCJul 19, 18:25 UTC1h 5m
2026-07-19 EWG09NC - Jul 19, 14:20 UTCJul 19, 16:20 UTC2h 0m
2026-07-19 EWG590 - Jul 19, 10:45 UTCJul 19, 12:45 UTC2h 0m
2026-07-19 EWG32B - Jul 19, 07:05 UTCJul 19, 09:10 UTC2h 5m
2026-07-19 EWG2WE - Jul 19, 04:05 UTCJul 19, 05:50 UTC1h 45m
2026-07-18 EWG29E - Jul 18, 20:10 UTCJul 18, 21:15 UTC1h 5m
2026-07-18 EWG9V CGN → BIA Jul 18, 17:50 UTCJul 18, 19:15 UTC1h 25m
2026-07-18 EWG437 - Jul 18, 15:15 UTCJul 18, 16:45 UTC1h 30m
2026-07-18 EWG29E - Jul 18, 13:20 UTCJul 18, 14:15 UTC55m
2026-07-18 EWG6902 HAM → STR Jul 18, 11:30 UTCJul 18, 12:25 UTC55m
2026-07-17 EWG2WJ STR → HAM Jul 17, 14:00 UTCJul 17, 15:00 UTC1h 0m
2026-07-17 EWG54R BUD → STR Jul 17, 11:55 UTCJul 17, 13:10 UTC1h 15m
2026-07-17 EWG54R STR → BUD Jul 17, 08:59 UTCJul 17, 10:15 UTC1h 15m
2026-07-17 EWG2QR PMI → STR Jul 17, 06:10 UTCJul 17, 07:50 UTC1h 40m
2026-07-17 EWG31G - Jul 17, 02:15 UTCJul 17, 04:20 UTC2h 5m
2026-07-16 EWG60W - Jul 16, 22:59 UTCJul 17, 00:55 UTC1h 55m
2026-07-16 EWG8XV DRS → PMI Jul 16, 18:44 UTCJul 16, 21:00 UTC2h 15m
2026-07-16 EWG3C BER → CGN Jul 16, 15:30 UTCJul 16, 17:30 UTC2h 0m
2026-07-16 EWG53K - Jul 16, 10:29 UTCJul 16, 12:09 UTC1h 40m
2026-07-16 EWG86C - Jul 16, 07:45 UTCJul 16, 09:30 UTC1h 45m
2026-07-16 EWG2WE - Jul 16, 04:50 UTCJul 16, 06:30 UTC1h 40m
2026-07-15 EWG22WH - Jul 15, 20:10 UTCJul 15, 22:00 UTC1h 50m
2026-07-15 EWG5R LHR → CGN Jul 15, 17:10 UTCJul 15, 18:50 UTC1h 40m
2026-07-15 EWG2QR PMI → STR Jul 15, 14:10 UTCJul 15, 15:55 UTC1h 45m
2026-07-15 EWG3CB - Jul 15, 04:30 UTCJul 15, 06:15 UTC1h 45m
2026-07-14 EWG9TL ATH → DUS Jul 14, 14:20 UTCJul 14, 16:00 UTC1h 40m
2026-07-14 EWG47GZ - Jul 14, 11:10 UTCJul 14, 13:10 UTC2h 0m
2026-07-14 EWG8QR - Jul 14, 08:10 UTCJul 14, 10:15 UTC2h 5m
2026-07-14 EWG2WE - Jul 14, 05:10 UTCJul 14, 06:55 UTC1h 45m

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 9H-EUN page for operator, model, and routing details .

Mode-S 4D2509 frequently asked

What is Mode-S code 4D2509?
4D2509 is an ICAO 24-bit transponder address. Assigned to 9H-EUN.
Is 4D2509 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2509, octal 23222411, decimal 5,055,753.
What flights does 4D2509 operate?
Mode-S 4D2509 has broadcast 20 distinct callsigns, including EWG86C, EWG60W, EWG53K, EWG31G, EWG2WE.