sensors Mode-S transponder

3D7A23

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-FSMT · PILATUS PC-12

Hex
3D7A23
Octal
17275043
Decimal
4,028,963
Country
DE
Tail
D-FSMT
Type
PC12
No current signal · last broadcast 19h ago
Flights observed
70
Distinct callsigns
17
Country
DE
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 3D7A23.

Country allocation

The ICAO 24-bit address 3D7A23 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 17 distinct

Callsign Airline Flights Last seen
EIS87 - 13 2026-07-12
EIS15 - 8 2026-06-24
EIS22 - 7 2026-07-08
EIS65 - 6 2026-06-08
EIS02 - 6 2026-06-10
EIS67 - 4 2026-05-26
COOL60 - 4 2026-04-15
COOL50 - 3 2026-04-14
COOL30 - 3 2026-04-14
COOL20 - 3 2026-04-15
EIS95 - 2 2026-07-13
EIS64 - 2 2026-07-02
EIS33 - 2 2026-06-09
EIS30 - 2 2026-07-09
EIS20 - 2 2026-04-21
COOL40 - 2 2026-04-14
EIS73 - 1 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 EIS95 - Jul 13, 12:55 UTCJul 13, 15:05 UTC2h 10m
2026-07-13 EIS95 - Jul 13, 07:20 UTCJul 13, 11:05 UTC3h 45m
2026-07-12 EIS87 LEJ → KEL Jul 12, 19:40 UTCJul 12, 23:45 UTC4h 5m
2026-07-12 EIS87 KEL → LEJ Jul 12, 17:01 UTCJul 12, 18:01 UTC1h 0m
2026-07-09 EIS30 KEL → KEL Jul 9, 11:30 UTCJul 9, 14:45 UTC3h 15m
2026-07-08 EIS22 NUE → KEL Jul 8, 20:15 UTCJul 9, 00:10 UTC3h 55m
2026-07-07 EIS22 KEL → NUE Jul 7, 19:10 UTCJul 7, 22:50 UTC3h 40m
2026-07-02 EIS64 SCN → KEL Jul 2, 13:05 UTCJul 2, 14:35 UTC1h 30m
2026-07-02 EIS22 - Jul 2, 06:51 UTCJul 2, 09:20 UTC2h 29m
2026-07-01 EIS64 - Jul 1, 10:50 UTCJul 1, 13:10 UTC2h 20m
2026-07-01 EIS22 - Jul 1, 06:50 UTCJul 1, 09:05 UTC2h 15m
2026-06-30 EIS22 - Jun 30, 10:50 UTCJun 30, 13:10 UTC2h 20m
2026-06-30 EIS22 - Jun 30, 05:45 UTCJun 30, 09:25 UTC3h 40m
2026-06-27 EIS87 GHF → KEL Jun 27, 13:20 UTCJun 27, 14:39 UTC1h 20m
2026-06-27 EIS87 - Jun 27, 10:54 UTCJun 27, 13:09 UTC2h 15m
2026-06-27 EIS87 - Jun 27, 06:54 UTCJun 27, 09:09 UTC2h 15m
2026-06-26 EIS87 - Jun 26, 11:24 UTCJun 26, 13:45 UTC2h 20m
2026-06-26 EIS87 - Jun 26, 07:05 UTCJun 26, 09:10 UTC2h 5m
2026-06-25 EIS87 KEL → GHF Jun 25, 07:00 UTCJun 25, 10:04 UTC3h 5m
2026-06-24 EIS15 - Jun 24, 11:54 UTCJun 24, 13:05 UTC1h 10m
2026-06-24 EIS15 - Jun 24, 06:35 UTCJun 24, 08:39 UTC2h 5m
2026-06-11 EIS15 - Jun 11, 11:10 UTCJun 11, 11:55 UTC45m
2026-06-10 EIS02 - Jun 10, 23:00 UTCJun 11, 00:10 UTC1h 10m
2026-06-10 EIS02 - Jun 10, 20:05 UTCJun 10, 21:05 UTC1h 0m
2026-06-10 EIS15 - Jun 10, 11:50 UTCJun 10, 14:50 UTC3h 0m
2026-06-10 EIS15 - Jun 10, 06:50 UTCJun 10, 09:50 UTC3h 0m
2026-06-09 EIS02 - Jun 9, 23:05 UTCJun 10, 00:25 UTC1h 20m
2026-06-09 EIS02 - Jun 9, 19:55 UTCJun 9, 20:55 UTC1h 0m
2026-06-09 EIS33 - Jun 9, 11:45 UTCJun 9, 14:50 UTC3h 5m
2026-06-09 EIS33 - Jun 9, 06:45 UTCJun 9, 10:00 UTC3h 15m
2026-06-08 EIS65 - Jun 8, 21:00 UTCJun 8, 22:15 UTC1h 15m
2026-06-08 EIS65 - Jun 8, 17:50 UTCJun 8, 19:10 UTC1h 20m
2026-06-08 EIS15 - Jun 8, 11:25 UTCJun 8, 15:15 UTC3h 50m
2026-06-03 EIS15 - Jun 3, 13:20 UTCJun 3, 13:40 UTC20m
2026-06-03 EIS15 - Jun 3, 11:50 UTCJun 3, 12:10 UTC20m
2026-05-27 EIS65 - May 27, 04:39 UTCMay 27, 06:20 UTC1h 40m
2026-05-26 EIS67 - May 26, 06:44 UTCMay 26, 09:09 UTC2h 25m
2026-05-21 EIS65 - May 21, 06:25 UTCMay 21, 09:25 UTC3h 0m
2026-05-19 EIS22 - May 19, 14:40 UTCMay 19, 16:10 UTC1h 30m
2026-05-19 EIS67 - May 19, 10:25 UTCMay 19, 13:25 UTC3h 0m
2026-05-18 EIS67 - May 18, 10:25 UTCMay 18, 13:35 UTC3h 10m
2026-05-12 EIS67 AGB → AGB May 12, 11:55 UTCMay 12, 13:35 UTC1h 40m
2026-05-12 EIS65 - May 12, 08:10 UTCMay 12, 10:50 UTC2h 40m
2026-05-05 EIS87 - May 5, 07:50 UTCMay 5, 08:55 UTC1h 5m
2026-04-29 EIS73 - Apr 29, 05:55 UTCApr 29, 09:10 UTC3h 16m
2026-04-28 EIS30 - Apr 28, 13:25 UTCApr 28, 14:40 UTC1h 15m
2026-04-23 EIS65 AGB → MGL Apr 23, 11:50 UTCApr 23, 14:35 UTC2h 45m
2026-04-21 EIS20 AGB → AGB Apr 21, 11:50 UTCApr 21, 13:45 UTC1h 55m
2026-04-20 EIS20 - Apr 20, 11:55 UTCApr 20, 13:45 UTC1h 50m
2026-04-19 EIS87 KEL → AGB Apr 19, 14:30 UTCApr 19, 16:10 UTC1h 40m

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

Mode-S 3D7A23 frequently asked

What is Mode-S code 3D7A23?
3D7A23 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-FSMT.
Where is Mode-S 3D7A23 registered?
Mode-S code 3D7A23 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D7A23 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D7A23, octal 17275043, decimal 4,028,963.
What flights does 3D7A23 operate?
Mode-S 3D7A23 has broadcast 17 distinct callsigns, including EIS87, EIS15, EIS22, EIS65, EIS02.