Apparatus

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sensors Mode-S transponder

3C5641

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AERA · BOEING 777-200LR

Hex
3C5641
Octal
17053101
Decimal
3,954,241
Country
DE
Tail
D-AERA
Type
B77L
Broadcasting now · callsign BOX622 · 37,000 ft
Flights observed
243
Distinct callsigns
20
Country
DE
Last broadcast
11m ago

Current position

3C5641 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C5641 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
BOX618 - 11 2026-07-09
BOX733 - 10 2026-06-18
BOX619 - 10 2026-07-09
BOX582 AeroLogic 8 2026-05-23
BOX742 - 7 2026-04-17
BOX720 - 6 2026-04-14
BOX715 - 6 2026-06-20
BOX587 AeroLogic 6 2026-05-16
BOX571 AeroLogic 6 2026-06-04
BOX594 AeroLogic 5 2026-05-29
BOX502 AeroLogic 5 2026-05-13
BOX457 AeroLogic 5 2026-04-13
BOX735 - 4 2026-05-22
BOX711 - 4 2026-05-09
BOX617 - 4 2026-07-10
BOX586 AeroLogic 4 2026-05-15
BOX584 - 4 2026-04-23
BOX580 AeroLogic 4 2026-04-19
BOX570 AeroLogic 4 2026-06-04
BOX566 - 4 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BOX622 - Jul 14, 15:35 UTCJul 14, 22:15 UTC6h 40m
2026-07-14 BOX449 - Jul 14, 03:20 UTCJul 14, 11:15 UTC7h 55m
2026-07-13 BOX448 YYZ → ORD Jul 13, 22:50 UTCJul 13, 23:55 UTC1h 5m
2026-07-13 BOX448 - Jul 13, 12:50 UTCJul 13, 20:25 UTC7h 35m
2026-07-12 BOX623 - Jul 12, 03:01 UTCJul 12, 11:25 UTC8h 25m
2026-07-11 BOX622 - Jul 11, 15:05 UTCJul 11, 22:45 UTC7h 40m
2026-07-10 BOX617 - Jul 10, 16:40 UTCJul 11, 03:10 UTC10h 30m
2026-07-09 BOX619 - Jul 9, 16:45 UTCJul 10, 09:05 UTC16h 20m
2026-07-09 BOX619 - Jul 9, 10:20 UTCJul 10, 09:05 UTC22h 45m
2026-07-09 BOX619 - Jul 9, 10:10 UTCJul 10, 08:15 UTC22h 5m
2026-07-09 BOX618 - Jul 9, 07:10 UTCJul 10, 00:10 UTC17h 0m
2026-07-09 BOX618 - Jul 9, 02:10 UTCJul 9, 02:20 UTC10m
2026-07-08 BOX618 - Jul 8, 17:50 UTCJul 9, 00:40 UTC6h 50m
2026-07-08 BOX613 - Jul 8, 04:50 UTCJul 8, 11:20 UTC6h 30m
2026-07-08 BOX613 - Jul 8, 03:00 UTCJul 8, 03:10 UTC10m
2026-07-07 BOX613 - Jul 7, 19:05 UTCJul 8, 01:40 UTC6h 35m
2026-07-07 BOX614 FRA → TPE Jul 7, 03:45 UTCJul 7, 16:40 UTC12h 55m
2026-07-06 BOX617 - Jul 6, 09:50 UTCJul 6, 19:55 UTC10h 5m
2026-07-05 BOX619 - Jul 5, 15:25 UTCJul 6, 06:50 UTC15h 25m
2026-07-05 BOX619 - Jul 5, 06:20 UTCJul 6, 06:15 UTC23h 55m
2026-07-05 BOX618 - Jul 5, 02:55 UTCJul 5, 22:00 UTC19h 5m
2026-07-04 BOX618 - Jul 4, 22:20 UTCJul 5, 22:00 UTC23h 40m
2026-07-04 BOX618 - Jul 4, 20:40 UTCJul 5, 15:40 UTC19h 0m
2026-07-04 BOX479 - Jul 4, 07:35 UTCJul 4, 17:45 UTC10h 10m
2026-07-03 BOX478 - Jul 3, 17:00 UTCJul 4, 04:15 UTC11h 15m
2026-07-03 BOX445 ORD → FRA Jul 3, 06:55 UTCJul 3, 14:05 UTC7h 10m
2026-07-02 BOX444 FRA → ORD Jul 2, 17:45 UTCJul 3, 02:45 UTC9h 0m
2026-07-02 BOX475 SEA → FRA Jul 2, 06:15 UTCJul 2, 15:00 UTC8h 45m
2026-07-02 BOX475 - Jul 2, 01:20 UTCJul 2, 03:30 UTC2h 10m
2026-07-01 BOX474 FRA → SEA Jul 1, 10:30 UTCJul 1, 21:20 UTC10h 50m
2026-06-30 BOX621 - Jun 30, 16:15 UTCJul 1, 03:15 UTC11h 0m
2026-06-29 BOX620 - Jun 29, 20:49 UTCJun 30, 13:00 UTC16h 11m
2026-06-29 BOX443 ORD → FRA Jun 29, 08:39 UTCJun 29, 16:15 UTC7h 35m
2026-06-29 BOX442 - Jun 29, 04:20 UTCJun 29, 05:40 UTC1h 20m
2026-06-28 BOX442 FRA → YYZ Jun 28, 18:00 UTCJun 29, 01:34 UTC7h 35m
2026-06-28 BOX459 ATL → FRA Jun 28, 03:40 UTCJun 28, 11:45 UTC8h 5m
2026-06-27 BOX458 FRA → ATL Jun 27, 15:39 UTCJun 28, 00:35 UTC8h 55m
2026-06-26 BOX617 - Jun 26, 16:35 UTCJun 27, 03:15 UTC10h 40m
2026-06-25 BOX619 - Jun 25, 16:39 UTCJun 26, 08:45 UTC16h 5m
2026-06-25 BOX619 - Jun 25, 10:20 UTCJun 26, 08:45 UTC22h 25m
2026-06-25 BOX619 - Jun 25, 10:04 UTCJun 26, 08:15 UTC22h 10m
2026-06-25 BOX618 - Jun 25, 07:05 UTCJun 25, 23:59 UTC16h 55m
2026-06-24 BOX618 - Jun 24, 17:34 UTCJun 25, 02:14 UTC8h 40m
2026-06-24 BOX615 HKG → FRA Jun 24, 03:10 UTCJun 24, 12:20 UTC9h 10m
2026-06-23 BOX615 HKG → FRA Jun 23, 19:29 UTCJun 24, 01:09 UTC5h 40m
2026-06-23 BOX614 FRA → TPE Jun 23, 04:00 UTCJun 23, 16:44 UTC12h 45m
2026-06-22 BOX617 - Jun 22, 09:24 UTCJun 22, 19:34 UTC10h 10m
2026-06-21 BOX619 - Jun 21, 15:09 UTCJun 22, 06:39 UTC15h 30m
2026-06-21 BOX619 - Jun 21, 06:19 UTCJun 22, 06:15 UTC23h 55m
2026-06-21 BOX618 - Jun 21, 02:24 UTCJun 21, 21:49 UTC19h 25m

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

Mode-S 3C5641 frequently asked

What is Mode-S code 3C5641?
3C5641 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AERA.
Where is Mode-S 3C5641 registered?
Mode-S code 3C5641 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C5641 broadcasting right now?
Yes. Mode-S 3C5641 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C5641, octal 17053101, decimal 3,954,241.
What flights does 3C5641 operate?
Mode-S 3C5641 has broadcast 20 distinct callsigns, including BOX618, BOX733, BOX619, BOX582, BOX742.