Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4402E2

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-FSR · CESSNA 525 CitationJet

Hex
4402E2
Octal
21001342
Decimal
4,457,186
Country
AT
Tail
OE-FSR
Type
C525
No current signal · last broadcast 1d ago
Flights observed
84
Distinct callsigns
1
Country
AT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4402E2.

Country allocation

The ICAO 24-bit address 4402E2 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 1 distinct

Callsign Airline Flights Last seen
OEFSR - 84 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 OEFSR - Jul 16, 17:00 UTCJul 16, 18:40 UTC1h 40m
2026-07-16 OEFSR - Jul 16, 14:00 UTCJul 16, 15:10 UTC1h 10m
2026-07-15 OEFSR - Jul 15, 11:20 UTCJul 15, 13:35 UTC2h 15m
2026-07-15 OEFSR - Jul 15, 07:40 UTCJul 15, 09:35 UTC1h 55m
2026-07-14 OEFSR WRO → ACH Jul 14, 15:50 UTCJul 14, 17:20 UTC1h 30m
2026-07-14 OEFSR - Jul 14, 05:15 UTCJul 14, 06:30 UTC1h 15m
2026-07-12 OEFSR - Jul 12, 15:30 UTCJul 12, 15:45 UTC15m
2026-07-12 OEFSR - Jul 12, 12:45 UTCJul 12, 14:45 UTC2h 0m
2026-07-11 OEFSR - Jul 11, 13:00 UTCJul 11, 15:00 UTC2h 0m
2026-07-11 OEFSR - Jul 11, 09:10 UTCJul 11, 11:10 UTC2h 0m
2026-07-10 OEFSR - Jul 10, 13:10 UTCJul 10, 13:50 UTC40m
2026-07-04 OEFSR - Jul 4, 11:20 UTCJul 4, 13:10 UTC1h 50m
2026-07-04 OEFSR - Jul 4, 08:10 UTCJul 4, 09:55 UTC1h 45m
2026-07-02 OEFSR FDH → ACH Jul 2, 12:25 UTCJul 2, 12:30 UTC5m
2026-07-02 OEFSR - Jul 2, 08:00 UTCJul 2, 09:25 UTC1h 25m
2026-07-01 OEFSR - Jul 1, 16:20 UTCJul 1, 18:50 UTC2h 30m
2026-07-01 OEFSR - Jul 1, 12:10 UTCJul 1, 14:10 UTC2h 0m
2026-06-29 OEFSR IBZ → ACH Jun 29, 16:25 UTCJun 29, 18:49 UTC2h 25m
2026-06-29 OEFSR - Jun 29, 12:49 UTCJun 29, 15:00 UTC2h 10m
2026-06-28 OEFSR - Jun 28, 15:55 UTCJun 28, 16:45 UTC50m
2026-06-28 OEFSR - Jun 28, 14:19 UTCJun 28, 15:09 UTC50m
2026-06-28 OEFSR VIE → ACH Jun 28, 12:19 UTCJun 28, 13:25 UTC1h 5m
2026-06-28 OEFSR ACH → VIE Jun 28, 10:15 UTCJun 28, 11:09 UTC55m
2026-06-26 OEFSR GWT → ACH Jun 26, 15:15 UTCJun 26, 16:44 UTC1h 30m
2026-06-26 OEFSR - Jun 26, 12:50 UTCJun 26, 14:25 UTC1h 35m
2026-06-26 OEFSR - Jun 26, 11:45 UTCJun 26, 12:19 UTC35m
2026-06-26 OEFSR - Jun 26, 08:30 UTCJun 26, 09:20 UTC50m
2026-06-26 OEFSR - Jun 26, 07:30 UTCJun 26, 07:45 UTC15m
2026-06-26 OEFSR - Jun 26, 06:09 UTCJun 26, 06:45 UTC35m
2026-06-25 OEFSR - Jun 25, 15:04 UTCJun 25, 16:55 UTC1h 50m
2026-06-25 OEFSR - Jun 25, 11:25 UTCJun 25, 13:45 UTC2h 20m
2026-06-25 OEFSR VIE → DUS Jun 25, 09:05 UTCJun 25, 10:35 UTC1h 30m
2026-06-25 OEFSR ACH → VIE Jun 25, 07:09 UTCJun 25, 08:09 UTC1h 0m
2026-06-24 OEFSR - Jun 24, 11:39 UTCJun 24, 13:34 UTC1h 55m
2026-06-24 OEFSR - Jun 24, 08:20 UTCJun 24, 10:19 UTC2h 0m
2026-06-23 OEFSR - Jun 23, 13:50 UTCJun 23, 14:29 UTC40m
2026-06-23 OEFSR - Jun 23, 06:04 UTCJun 23, 06:39 UTC35m
2026-06-22 OEFSR - Jun 22, 16:10 UTCJun 22, 16:45 UTC35m
2026-06-22 OEFSR - Jun 22, 12:44 UTCJun 22, 13:25 UTC40m
2026-06-22 OEFSR - Jun 22, 09:49 UTCJun 22, 11:00 UTC1h 10m
2026-06-17 OEFSR IBZ → ACH Jun 17, 13:00 UTCJun 17, 15:20 UTC2h 20m
2026-06-17 OEFSR - Jun 17, 09:40 UTCJun 17, 11:45 UTC2h 5m
2026-06-16 OEFSR - Jun 16, 13:19 UTCJun 16, 14:09 UTC50m
2026-06-16 OEFSR ACH → DUS Jun 16, 06:04 UTCJun 16, 07:05 UTC1h 0m
2026-06-15 OEFSR - Jun 15, 11:54 UTCJun 15, 13:54 UTC2h 0m
2026-06-15 OEFSR - Jun 15, 08:04 UTCJun 15, 09:54 UTC1h 50m
2026-06-14 OEFSR VIE → ACH Jun 14, 07:50 UTCJun 14, 09:00 UTC1h 10m
2026-06-13 OEFSR ACH → VIE Jun 13, 09:55 UTCJun 13, 10:50 UTC55m
2026-06-12 OEFSR - Jun 12, 14:55 UTCJun 12, 16:25 UTC1h 30m
2026-06-11 OEFSR - Jun 11, 11:55 UTCJun 11, 13:15 UTC1h 20m

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

Mode-S 4402E2 frequently asked

What is Mode-S code 4402E2?
4402E2 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-FSR.
Where is Mode-S 4402E2 registered?
Mode-S code 4402E2 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4402E2 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4402E2, octal 21001342, decimal 4,457,186.
What flights does 4402E2 operate?
Mode-S 4402E2 has broadcast 1 distinct callsign, including OEFSR.