Apparatus

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sensors Mode-S transponder

3CE256

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-CNAC · SWEARINGEN Metro

Hex
3CE256
Octal
17161126
Decimal
3,990,102
Country
DE
Tail
D-CNAC
Type
SW4
Broadcasting now · callsign BID51A · 1,050 ft
Flights observed
128
Distinct callsigns
20
Country
DE
Last broadcast
Jul 24, 12:20 UTC

Current position

3CE256 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3CE256 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
BID42A - 13 2026-07-23
BID51B - 10 2026-05-08
BID31A - 10 2026-07-15
BID11A - 10 2026-07-20
BID51A - 9 2026-07-24
BID41A - 9 2026-07-23
BID32A - 9 2026-07-15
BID21A - 9 2026-07-21
BID22A - 7 2026-07-14
BID52A - 6 2026-07-17
BID33A - 6 2026-07-01
BID12A - 4 2026-07-13
BID101 - 4 2026-06-28
BID61A - 3 2026-07-18
BID62A - 2 2026-07-18
BID43A - 2 2026-07-03
BID34A - 2 2026-04-15
BID78A - 1 2026-04-19
BID77B - 1 2026-05-28
BID77A - 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 BID51A OMR → FKB Jul 24, 09:55 UTCJul 24, 12:20 UTC2h 25m
2026-07-23 BID42A FKB → OMR Jul 23, 16:30 UTCJul 23, 18:35 UTC2h 5m
2026-07-23 BID41A OMR → FKB Jul 23, 12:00 UTCJul 23, 14:45 UTC2h 45m
2026-07-22 BID31B - Jul 22, 15:15 UTCJul 22, 18:55 UTC3h 40m
2026-07-21 BID21A NUE → BHX Jul 21, 06:55 UTCJul 21, 09:05 UTC2h 10m
2026-07-21 BID21A - Jul 21, 04:40 UTCJul 21, 05:55 UTC1h 15m
2026-07-20 BID11A - Jul 20, 14:55 UTCJul 20, 16:55 UTC2h 0m
2026-07-18 BID62A STR → AMS Jul 18, 05:15 UTCJul 18, 06:35 UTC1h 20m
2026-07-18 BID61A - Jul 18, 02:50 UTCJul 18, 04:25 UTC1h 35m
2026-07-17 BID52A - Jul 17, 05:20 UTCJul 17, 06:45 UTC1h 25m
2026-07-17 BID51A - Jul 17, 03:05 UTCJul 17, 04:35 UTC1h 30m
2026-07-16 BID42A - Jul 16, 05:20 UTCJul 16, 06:45 UTC1h 25m
2026-07-16 BID41A - Jul 16, 03:00 UTCJul 16, 04:45 UTC1h 45m
2026-07-15 BID32A - Jul 15, 05:10 UTCJul 15, 06:30 UTC1h 20m
2026-07-15 BID31A - Jul 15, 02:45 UTCJul 15, 04:25 UTC1h 40m
2026-07-14 BID22A - Jul 14, 05:45 UTCJul 14, 07:10 UTC1h 25m
2026-07-14 BID21A - Jul 14, 03:20 UTCJul 14, 04:55 UTC1h 35m
2026-07-13 BID12A - Jul 13, 12:50 UTCJul 13, 14:40 UTC1h 50m
2026-07-13 BID11A - Jul 13, 11:30 UTCJul 13, 12:00 UTC30m
2026-07-11 BID62A STR → AMS Jul 11, 05:45 UTCJul 11, 07:15 UTC1h 30m
2026-07-11 BID61A - Jul 11, 02:50 UTCJul 11, 04:35 UTC1h 45m
2026-07-10 BID52A - Jul 10, 05:05 UTCJul 10, 06:30 UTC1h 25m
2026-07-10 BID51A - Jul 10, 02:50 UTCJul 10, 04:35 UTC1h 45m
2026-07-09 BID42A - Jul 9, 05:10 UTCJul 9, 06:35 UTC1h 25m
2026-07-09 BID41A - Jul 9, 02:50 UTCJul 9, 04:30 UTC1h 40m
2026-07-08 BID32A - Jul 8, 05:10 UTCJul 8, 06:30 UTC1h 20m
2026-07-08 BID31A - Jul 8, 02:45 UTCJul 8, 04:35 UTC1h 50m
2026-07-07 BID22A - Jul 7, 05:30 UTCJul 7, 06:55 UTC1h 25m
2026-07-07 BID21A - Jul 7, 03:10 UTCJul 7, 04:55 UTC1h 45m
2026-07-06 BID11A - Jul 6, 12:20 UTCJul 6, 13:55 UTC1h 35m
2026-07-04 BID61A STR → FMO Jul 4, 05:40 UTCJul 4, 06:40 UTC1h 0m
2026-07-04 BID51A - Jul 4, 02:50 UTCJul 4, 04:25 UTC1h 35m
2026-07-03 BID43A - Jul 3, 11:00 UTCJul 3, 12:25 UTC1h 25m
2026-07-03 BID51A RZE → FKB Jul 3, 07:20 UTCJul 3, 09:55 UTC2h 35m
2026-07-02 BID42A - Jul 2, 10:40 UTCJul 2, 13:00 UTC2h 20m
2026-07-02 BID41A - Jul 2, 07:35 UTCJul 2, 09:55 UTC2h 20m
2026-07-01 BID33A - Jul 1, 11:55 UTCJul 1, 14:15 UTC2h 20m
2026-07-01 BID32A - Jul 1, 08:30 UTCJul 1, 11:00 UTC2h 30m
2026-07-01 BID31A - Jul 1, 04:15 UTCJul 1, 06:25 UTC2h 10m
2026-06-30 BID22A RZE → FKB Jun 30, 08:40 UTCJun 30, 11:15 UTC2h 35m
2026-06-30 BID21A HEL → RZE Jun 30, 03:25 UTCJun 30, 06:05 UTC2h 40m
2026-06-29 BID11A - Jun 29, 11:29 UTCJun 29, 14:34 UTC3h 5m
2026-06-28 BID101 - Jun 28, 09:25 UTCJun 28, 11:29 UTC2h 5m
2026-06-26 BID51A - Jun 26, 15:20 UTCJun 26, 19:04 UTC3h 45m
2026-06-25 BID43A - Jun 25, 19:05 UTCJun 25, 19:44 UTC40m
2026-06-25 BID42A - Jun 25, 13:05 UTCJun 25, 17:54 UTC4h 50m
2026-06-25 BID41A - Jun 25, 09:25 UTCJun 25, 10:39 UTC1h 15m
2026-06-23 BID22A - Jun 23, 16:54 UTCJun 23, 18:04 UTC1h 10m
2026-06-23 BID55B - Jun 23, 10:24 UTCJun 23, 14:35 UTC4h 10m
2026-06-23 BID21A - Jun 23, 08:35 UTCJun 23, 08:54 UTC20m

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

Mode-S 3CE256 frequently asked

What is Mode-S code 3CE256?
3CE256 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-CNAC.
Where is Mode-S 3CE256 registered?
Mode-S code 3CE256 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3CE256 broadcasting right now?
Yes. Mode-S 3CE256 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3CE256, octal 17161126, decimal 3,990,102.
What flights does 3CE256 operate?
Mode-S 3CE256 has broadcast 20 distinct callsigns, including BID42A, BID51B, BID31A, BID11A, BID51A.