sensors Mode-S transponder

3F4E27

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to 14+02 · BOMBARDIER BD-700 Global 5000/5500

Hex
3F4E27
Octal
17647047
Decimal
4,148,775
Country
DE
Tail
14+02
Type
GL5T
No current signal · last broadcast 4d ago
Flights observed
58
Distinct callsigns
12
Country
DE
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 3F4E27.

Country allocation

The ICAO 24-bit address 3F4E27 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 12 distinct

Callsign Airline Flights Last seen
GAF631 - 8 2026-05-20
GAF600 - 8 2026-05-22
GAF602 - 7 2026-05-04
GAF640 - 6 2026-05-29
GAF625 - 5 2026-04-28
GAF621 - 5 2026-04-18
GAF641 - 4 2026-05-27
GAF644 - 3 2026-05-19
GAF627 - 3 2026-04-24
GAF624 - 3 2026-05-10
GAF620 - 3 2026-05-19
GAF618 - 3 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 GAF640 - May 29, 06:40 UTCMay 29, 07:25 UTC45m
2026-05-29 GAF640 - May 29, 03:50 UTCMay 29, 06:10 UTC2h 20m
2026-05-28 GAF640 - May 28, 10:25 UTCMay 28, 13:05 UTC2h 40m
2026-05-27 GAF641 - May 27, 15:25 UTCMay 27, 15:50 UTC25m
2026-05-27 GAF641 VNO → FRA May 27, 12:35 UTCMay 27, 14:30 UTC1h 55m
2026-05-26 GAF641 - May 26, 07:29 UTCMay 26, 08:59 UTC1h 30m
2026-05-26 GAF641 CGN → FRA May 26, 05:15 UTCMay 26, 05:40 UTC25m
2026-05-22 GAF600 BER → CGN May 22, 16:55 UTCMay 22, 17:40 UTC45m
2026-05-22 GAF600 MUC → BER May 22, 15:25 UTCMay 22, 16:10 UTC45m
2026-05-21 GAF600 STR → MUC May 21, 09:10 UTCMay 21, 09:40 UTC30m
2026-05-21 GAF600 BER → STR May 21, 07:15 UTCMay 21, 08:05 UTC50m
2026-05-21 GAF600 CGN → BER May 21, 05:05 UTCMay 21, 05:50 UTC45m
2026-05-20 GAF631 - May 20, 17:30 UTCMay 20, 18:00 UTC30m
2026-05-20 GAF631 - May 20, 15:45 UTCMay 20, 16:45 UTC1h 0m
2026-05-20 GAF631 - May 20, 11:05 UTCMay 20, 11:55 UTC50m
2026-05-20 GAF631 - May 20, 09:10 UTCMay 20, 09:55 UTC45m
2026-05-19 GAF620 - May 19, 23:40 UTCMay 20, 00:25 UTC45m
2026-05-19 GAF620 - May 19, 22:00 UTCMay 19, 22:55 UTC55m
2026-05-19 GAF620 CGN → BRU May 19, 20:40 UTCMay 19, 21:10 UTC30m
2026-05-19 GAF644 - May 19, 17:05 UTCMay 19, 17:50 UTC45m
2026-05-19 GAF644 - May 19, 15:20 UTCMay 19, 16:35 UTC1h 15m
2026-05-19 GAF644 BER → STN May 19, 06:55 UTCMay 19, 08:10 UTC1h 15m
2026-05-18 GAF640 - May 18, 13:15 UTCMay 18, 13:55 UTC40m
2026-05-18 GAF640 - May 18, 11:40 UTCMay 18, 12:25 UTC45m
2026-05-18 GAF640 CGN → BER May 18, 09:20 UTCMay 18, 10:00 UTC40m
2026-05-10 GAF624 BRU → CGN May 10, 17:15 UTCMay 10, 17:40 UTC25m
2026-05-10 GAF624 HAM → BRU May 10, 15:15 UTCMay 10, 16:10 UTC55m
2026-05-10 GAF624 CGN → HAM May 10, 12:59 UTCMay 10, 13:40 UTC40m
2026-05-09 GAF600 FRA → CGN May 9, 16:30 UTCMay 9, 16:55 UTC25m
2026-05-09 GAF600 - May 9, 14:50 UTCMay 9, 15:40 UTC50m
2026-05-09 GAF600 CGN → BER May 9, 12:40 UTCMay 9, 13:25 UTC45m
2026-05-04 GAF602 - May 4, 15:50 UTCMay 4, 16:35 UTC45m
2026-05-04 GAF602 - May 4, 14:50 UTCMay 4, 15:25 UTC35m
2026-05-03 GAF602 - May 3, 14:45 UTCMay 3, 15:25 UTC40m
2026-05-03 GAF602 CGN → BER May 3, 12:25 UTCMay 3, 13:10 UTC45m
2026-04-30 GAF618 - Apr 30, 14:00 UTCApr 30, 14:40 UTC40m
2026-04-30 GAF618 VIY → BER Apr 30, 12:05 UTCApr 30, 13:30 UTC1h 25m
2026-04-30 GAF618 - Apr 30, 09:35 UTCApr 30, 10:40 UTC1h 5m
2026-04-28 GAF625 - Apr 28, 13:50 UTCApr 28, 15:25 UTC1h 35m
2026-04-28 GAF625 - Apr 28, 09:20 UTCApr 28, 12:50 UTC3h 30m
2026-04-27 GAF625 - Apr 27, 13:45 UTCApr 27, 14:15 UTC30m
2026-04-27 GAF625 - Apr 27, 07:10 UTCApr 27, 12:20 UTC5h 10m
2026-04-25 GAF602 - Apr 25, 15:05 UTCApr 25, 15:50 UTC45m
2026-04-25 GAF602 - Apr 25, 13:40 UTCApr 25, 14:30 UTC50m
2026-04-25 GAF602 - Apr 25, 08:20 UTCApr 25, 08:55 UTC35m
2026-04-24 GAF627 BER → CGN Apr 24, 11:40 UTCApr 24, 12:25 UTC45m
2026-04-24 GAF627 - Apr 24, 08:10 UTCApr 24, 10:30 UTC2h 20m
2026-04-18 GAF621 - Apr 18, 13:30 UTCApr 18, 14:55 UTC1h 25m
2026-04-18 GAF621 - Apr 18, 08:35 UTCApr 18, 12:50 UTC4h 15m
2026-04-17 GAF621 - Apr 17, 11:20 UTCApr 17, 13:15 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 14+02 page for operator, model, and routing details .

Mode-S 3F4E27 frequently asked

What is Mode-S code 3F4E27?
3F4E27 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to 14+02.
Where is Mode-S 3F4E27 registered?
Mode-S code 3F4E27 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3F4E27 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3F4E27, octal 17647047, decimal 4,148,775.
What flights does 3F4E27 operate?
Mode-S 3F4E27 has broadcast 12 distinct callsigns, including GAF631, GAF600, GAF602, GAF640, GAF625.