Apparatus

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sensors Mode-S transponder

3E1C91

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ICAB · RAYTHEON 390 Premier 1

Hex
3E1C91
Octal
17416221
Decimal
4,070,545
Country
DE
Tail
D-ICAB
Type
PRM1
No current signal · last broadcast 2d ago
Flights observed
129
Distinct callsigns
20
Country
DE
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 3E1C91.

Country allocation

The ICAO 24-bit address 3E1C91 falls within the block assigned to Germany (DE) by ICAO Annex 10, Volume III. Every aircraft registered in Germany 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
BFX10G - 6 2026-04-17
BFX42N - 5 2026-06-05
BFX42B - 5 2026-07-06
BFX44K - 4 2026-07-11
BFX44J - 4 2026-07-07
BFX43N - 4 2026-06-29
BFX43G - 4 2026-06-25
BFX43F - 4 2026-07-10
BFX13C - 4 2026-06-11
BFX44T - 3 2026-07-01
BFX44S - 3 2026-07-02
BFX44H - 3 2026-06-06
BFX44C - 3 2026-05-28
BFX43M - 3 2026-06-18
BFX43K - 3 2026-05-17
BFX42X - 3 2026-04-13
BFX40J - 3 2026-04-16
BFX13U - 3 2026-07-08
BFX44U - 2 2026-06-28
BFX44N - 2 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 BFX44K STR → NUE Jul 11, 17:15 UTCJul 11, 17:35 UTC20m
2026-07-11 BFX44K NCL → STR Jul 11, 15:05 UTCJul 11, 16:30 UTC1h 25m
2026-07-11 BFX44K HAM → NCL Jul 11, 09:45 UTCJul 11, 11:00 UTC1h 15m
2026-07-11 BFX44K NUE → HAM Jul 11, 07:40 UTCJul 11, 08:30 UTC50m
2026-07-10 BFX43F - Jul 10, 10:30 UTCJul 10, 12:25 UTC1h 55m
2026-07-10 BFX44P - Jul 10, 06:50 UTCJul 10, 08:50 UTC2h 0m
2026-07-10 BFX43F NUE → DUS Jul 10, 04:50 UTCJul 10, 05:30 UTC40m
2026-07-08 BFX13U - Jul 8, 11:25 UTCJul 8, 12:15 UTC50m
2026-07-08 BFX13U - Jul 8, 08:40 UTCJul 8, 10:50 UTC2h 10m
2026-07-08 BFX13U - Jul 8, 06:35 UTCJul 8, 07:30 UTC55m
2026-07-07 BFX44J - Jul 7, 12:35 UTCJul 7, 13:15 UTC40m
2026-07-07 BFX44J - Jul 7, 10:15 UTCJul 7, 11:40 UTC1h 25m
2026-07-06 BFX42B - Jul 6, 11:40 UTCJul 6, 12:55 UTC1h 15m
2026-07-05 BFX42B - Jul 5, 20:00 UTCJul 5, 21:05 UTC1h 5m
2026-07-05 BFX42B - Jul 5, 11:55 UTCJul 5, 13:25 UTC1h 30m
2026-07-04 BFX42B - Jul 4, 16:45 UTCJul 4, 18:00 UTC1h 15m
2026-07-04 BFX42B NUE → BRU Jul 4, 14:40 UTCJul 4, 15:35 UTC55m
2026-07-02 BFX44S LEJ → NUE Jul 2, 14:50 UTCJul 2, 15:15 UTC25m
2026-07-02 BFX44S BER → LEJ Jul 2, 09:50 UTCJul 2, 10:10 UTC20m
2026-07-01 BFX44S NUE → BER Jul 1, 18:55 UTCJul 1, 19:35 UTC40m
2026-07-01 BFX44T HAM → NUE Jul 1, 15:10 UTCJul 1, 16:05 UTC55m
2026-07-01 BFX44T NUE → HAM Jul 1, 12:50 UTCJul 1, 13:30 UTC40m
2026-06-29 BFX44J - Jun 29, 14:25 UTCJun 29, 15:19 UTC55m
2026-06-29 BFX44J - Jun 29, 10:40 UTCJun 29, 12:09 UTC1h 30m
2026-06-29 BFX43N FDH → HAJ Jun 29, 07:55 UTCJun 29, 08:44 UTC50m
2026-06-28 BFX43N GRZ → FDH Jun 28, 16:49 UTCJun 28, 17:39 UTC50m
2026-06-28 BFX44U - Jun 28, 14:25 UTCJun 28, 16:00 UTC1h 35m
2026-06-28 BFX44U GRZ → AMS Jun 28, 11:00 UTCJun 28, 12:25 UTC1h 25m
2026-06-26 BFX43N FDH → GRZ Jun 26, 14:15 UTCJun 26, 14:59 UTC45m
2026-06-26 BFX43N - Jun 26, 13:04 UTCJun 26, 13:24 UTC20m
2026-06-26 BFX44T - Jun 26, 08:15 UTCJun 26, 08:40 UTC25m
2026-06-25 BFX43G - Jun 25, 09:05 UTCJun 25, 10:20 UTC1h 15m
2026-06-25 BFX43G NUE → CTT Jun 25, 06:05 UTCJun 25, 07:19 UTC1h 15m
2026-06-23 BFX43W FRL → NUE Jun 23, 15:55 UTCJun 23, 16:59 UTC1h 5m
2026-06-23 BFX43W NUE → FRL Jun 23, 05:59 UTCJun 23, 06:59 UTC1h 0m
2026-06-22 BFX44E - Jun 22, 14:59 UTCJun 22, 15:35 UTC35m
2026-06-21 BFX44E NUE → BWE Jun 21, 14:24 UTCJun 21, 14:59 UTC35m
2026-06-19 BFX43J IBZ → NUE Jun 19, 09:59 UTCJun 19, 12:04 UTC2h 5m
2026-06-19 BFX43J NUE → IBZ Jun 19, 06:44 UTCJun 19, 08:59 UTC2h 15m
2026-06-18 BFX40M - Jun 18, 15:20 UTCJun 18, 17:21 UTC2h 1m
2026-06-18 BFX43M - Jun 18, 12:55 UTCJun 18, 13:45 UTC50m
2026-06-18 BFX44N RNS → MAD Jun 18, 09:30 UTCJun 18, 10:55 UTC1h 25m
2026-06-18 BFX44N NUE → RNS Jun 18, 07:20 UTCJun 18, 08:50 UTC1h 30m
2026-06-17 BFX43M CGN → NUE Jun 17, 15:30 UTCJun 17, 16:05 UTC35m
2026-06-16 BFX43M - Jun 16, 14:39 UTCJun 16, 16:55 UTC2h 15m
2026-06-16 BFX40M - Jun 16, 06:15 UTCJun 16, 08:05 UTC1h 50m
2026-06-15 BFX12T - Jun 15, 14:15 UTCJun 15, 15:10 UTC55m
2026-06-15 BFX12T - Jun 15, 11:54 UTCJun 15, 12:39 UTC45m
2026-06-14 BFX43A VIE → NUE Jun 14, 15:10 UTCJun 14, 16:00 UTC50m
2026-06-12 BFX43A NUE → VIE Jun 12, 13:35 UTCJun 12, 14:30 UTC55m

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 D-ICAB page for operator, model, and routing details .

Mode-S 3E1C91 frequently asked

What is Mode-S code 3E1C91?
3E1C91 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ICAB.
Where is Mode-S 3E1C91 registered?
Mode-S code 3E1C91 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E1C91 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E1C91, octal 17416221, decimal 4,070,545.
What flights does 3E1C91 operate?
Mode-S 3E1C91 has broadcast 20 distinct callsigns, including BFX10G, BFX42N, BFX42B, BFX44K, BFX44J.