Apparatus

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sensors Mode-S transponder

3C79C1

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ANNA · AIRBUS A-320

Hex
3C79C1
Octal
17074701
Decimal
3,963,329
Country
DE
Tail
D-ANNA
Type
A320
No current signal · last broadcast 2h ago
Flights observed
248
Distinct callsigns
20
Country
DE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 3C79C1.

Country allocation

The ICAO 24-bit address 3C79C1 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
SDR46JP - 10 2026-07-11
SDR41KM City Airline 10 2026-07-13
SDR41JJ City Airline 10 2026-07-13
SDR46KE City Airline 9 2026-07-11
SDR45EE City Airline 9 2026-07-10
SDR17QS - 9 2026-07-12
SDR16YT - 9 2026-07-11
SDR49KT City Airline 8 2026-07-12
SDR49JS City Airline 8 2026-07-12
SDR45DR - 8 2026-07-10
SDR17SG - 8 2026-07-12
SDR17RA City Airline 8 2026-07-12
SDR16XK - 8 2026-07-11
SDR75SK - 7 2026-07-10
SDR75RY City Airline 7 2026-07-10
SDR17PM - 7 2026-07-12
SDR70WQ - 6 2026-07-09
SDR70TS - 6 2026-07-09
SDR70NA - 6 2026-07-08
SDR70MN - 6 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SDR70YK - Jul 14, 03:35 UTCJul 14, 05:30 UTC1h 55m
2026-07-13 SDR41KM HER → BER Jul 13, 10:55 UTCJul 13, 13:45 UTC2h 50m
2026-07-13 SDR41JJ BER → HER Jul 13, 06:35 UTCJul 13, 09:25 UTC2h 50m
2026-07-12 SDR49JS HER → BER Jul 12, 17:01 UTCJul 12, 19:45 UTC2h 45m
2026-07-12 SDR49KT BER → HER Jul 12, 12:55 UTCJul 12, 15:35 UTC2h 40m
2026-07-12 SDR17RA TRS → BER Jul 12, 10:20 UTCJul 12, 11:30 UTC1h 10m
2026-07-12 SDR17QS MUC → TRS Jul 12, 08:45 UTCJul 12, 09:25 UTC40m
2026-07-12 SDR17PM TRS → MUC Jul 12, 06:50 UTCJul 12, 07:40 UTC50m
2026-07-12 SDR17SG BER → TRS Jul 12, 04:30 UTCJul 12, 05:35 UTC1h 5m
2026-07-11 SDR16XK - Jul 11, 17:05 UTCJul 11, 19:40 UTC2h 35m
2026-07-11 SDR16YT - Jul 11, 13:20 UTCJul 11, 15:50 UTC2h 30m
2026-07-11 SDR46KE KGS → BER Jul 11, 09:15 UTCJul 11, 12:00 UTC2h 45m
2026-07-11 SDR46JP BER → KGS Jul 11, 04:25 UTCJul 11, 07:05 UTC2h 40m
2026-07-10 SDR75RY BOJ → BER Jul 10, 18:40 UTCJul 10, 21:00 UTC2h 20m
2026-07-10 SDR75SK - Jul 10, 15:30 UTCJul 10, 17:25 UTC1h 55m
2026-07-10 SDR45EE HER → BER Jul 10, 11:05 UTCJul 10, 14:10 UTC3h 5m
2026-07-10 SDR45DR - Jul 10, 06:45 UTCJul 10, 09:15 UTC2h 30m
2026-07-09 SDR18XX OPO → BER Jul 9, 16:45 UTCJul 9, 19:30 UTC2h 45m
2026-07-09 SDR18YB - Jul 9, 12:15 UTCJul 9, 15:10 UTC2h 55m
2026-07-09 SDR70TS - Jul 9, 07:00 UTCJul 9, 09:10 UTC2h 10m
2026-07-09 SDR70WQ - Jul 9, 03:45 UTCJul 9, 05:40 UTC1h 55m
2026-07-08 SDR33WB - Jul 8, 16:55 UTCJul 8, 21:20 UTC4h 25m
2026-07-08 SDR33TS - Jul 8, 10:40 UTCJul 8, 15:10 UTC4h 30m
2026-07-08 SDR70MN BOJ → BER Jul 8, 07:05 UTCJul 8, 09:25 UTC2h 20m
2026-07-08 SDR70NA BER → BOJ Jul 8, 04:00 UTCJul 8, 05:55 UTC1h 55m
2026-07-07 SDR19DE - Jul 7, 15:25 UTCJul 7, 19:10 UTC3h 45m
2026-07-07 SDR19EG - Jul 7, 10:35 UTCJul 7, 13:50 UTC3h 15m
2026-07-06 SDR41KM HER → BER Jul 6, 11:05 UTCJul 6, 13:55 UTC2h 50m
2026-07-06 SDR41JJ BER → HER Jul 6, 06:50 UTCJul 6, 09:20 UTC2h 30m
2026-07-05 SDR49JS HER → BER Jul 5, 16:55 UTCJul 5, 19:45 UTC2h 50m
2026-07-05 SDR49KT BER → HER Jul 5, 12:40 UTCJul 5, 15:15 UTC2h 35m
2026-07-05 SDR17RA TRS → BER Jul 5, 10:20 UTCJul 5, 11:30 UTC1h 10m
2026-07-05 SDR17QS MUC → TRS Jul 5, 08:35 UTCJul 5, 09:10 UTC35m
2026-07-05 SDR17PM TRS → MUC Jul 5, 06:45 UTCJul 5, 07:30 UTC45m
2026-07-05 SDR17SG BER → TRS Jul 5, 04:30 UTCJul 5, 05:35 UTC1h 5m
2026-07-04 SDR16XK - Jul 4, 17:35 UTCJul 4, 20:05 UTC2h 30m
2026-07-04 SDR16YT - Jul 4, 14:00 UTCJul 4, 16:05 UTC2h 5m
2026-07-04 SDR46KE KGS → BER Jul 4, 09:50 UTCJul 4, 12:40 UTC2h 50m
2026-07-04 SDR46JP BER → KGS Jul 4, 04:30 UTCJul 4, 07:10 UTC2h 40m
2026-07-03 SDR75RY BOJ → BER Jul 3, 18:40 UTCJul 3, 20:55 UTC2h 15m
2026-07-03 SDR75SK - Jul 3, 15:35 UTCJul 3, 17:35 UTC2h 0m
2026-07-03 SDR45EE HER → BER Jul 3, 11:10 UTCJul 3, 14:00 UTC2h 50m
2026-07-03 SDR45DR - Jul 3, 06:40 UTCJul 3, 09:20 UTC2h 40m
2026-07-02 SDR18XX OPO → BER Jul 2, 18:00 UTCJul 2, 20:40 UTC2h 40m
2026-07-02 SDR18YB - Jul 2, 12:30 UTCJul 2, 15:20 UTC2h 50m
2026-07-02 SDR70TS - Jul 2, 06:55 UTCJul 2, 09:00 UTC2h 5m
2026-07-02 SDR70WQ - Jul 2, 03:45 UTCJul 2, 05:40 UTC1h 55m
2026-07-01 SDR70MN - Jul 1, 07:30 UTCJul 1, 09:30 UTC2h 0m
2026-07-01 SDR70NA BER → BOJ Jul 1, 04:05 UTCJul 1, 06:15 UTC2h 10m
2026-06-30 SDR19DE - Jun 30, 15:45 UTCJun 30, 19:20 UTC3h 35m

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

Mode-S 3C79C1 frequently asked

What is Mode-S code 3C79C1?
3C79C1 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ANNA.
Where is Mode-S 3C79C1 registered?
Mode-S code 3C79C1 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C79C1 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C79C1, octal 17074701, decimal 3,963,329.
What flights does 3C79C1 operate?
Mode-S 3C79C1 has broadcast 20 distinct callsigns, including SDR46JP, SDR41KM, SDR41JJ, SDR46KE, SDR45EE.