Apparatus

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sensors Mode-S transponder

3C15C1

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AXGE · AIRBUS A-330-200

Hex
3C15C1
Octal
17012701
Decimal
3,937,729
Country
DE
Tail
D-AXGE
Type
A332
No current signal · last broadcast 1d ago
Flights observed
141
Distinct callsigns
20
Country
DE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 3C15C1.

Country allocation

The ICAO 24-bit address 3C15C1 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
OCN642 - 15 2026-06-24
OCN659 - 13 2026-06-24
OCN51 - 13 2026-07-08
OCN50 O Air 13 2026-07-08
OCN131 O Air 11 2026-06-22
OCN68 - 10 2026-07-10
OCN74 - 9 2026-07-11
OCN75 - 8 2026-07-11
OCN69 - 8 2026-07-11
OCN135K O Air 6 2026-04-28
OCN132W O Air 6 2026-06-22
OCN3 - 5 2026-07-09
OCN2 - 5 2026-07-09
OCN133 - 5 2026-06-24
OCN77 O Air 3 2026-05-16
OCN76 O Air 3 2026-05-16
OCN617 - 2 2026-05-14
OCN601 - 2 2026-05-14
OCN130 - 2 2026-07-12
OCN731 O Air 1 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 OCN130 - Jul 12, 21:55 UTCJul 13, 03:40 UTC5h 45m
2026-07-12 OCN130 - Jul 12, 18:45 UTCJul 12, 21:35 UTC2h 50m
2026-07-11 OCN75 - Jul 11, 23:00 UTCJul 12, 04:50 UTC5h 50m
2026-07-11 OCN74 - Jul 11, 14:05 UTCJul 11, 20:55 UTC6h 50m
2026-07-11 OCN69 MCO → FRA Jul 11, 00:25 UTCJul 11, 09:15 UTC8h 50m
2026-07-10 OCN68 FRA → MCO Jul 10, 12:05 UTCJul 10, 21:35 UTC9h 30m
2026-07-09 OCN3 - Jul 9, 14:20 UTCJul 10, 09:10 UTC18h 50m
2026-07-09 OCN2 FRA → FRA Jul 9, 12:50 UTCJul 10, 09:10 UTC20h 20m
2026-07-08 OCN51 PHL → FRA Jul 8, 22:10 UTCJul 9, 05:50 UTC7h 40m
2026-07-08 OCN50 FRA → PHL Jul 8, 11:35 UTCJul 8, 19:45 UTC8h 10m
2026-07-07 OCN51 - Jul 7, 21:55 UTCJul 8, 05:10 UTC7h 15m
2026-07-07 OCN50 FRA → PHL Jul 7, 11:35 UTCJul 7, 19:55 UTC8h 20m
2026-07-06 OCN51 - Jul 6, 22:05 UTCJul 7, 05:05 UTC7h 0m
2026-07-06 OCN50 FRA → PHL Jul 6, 11:30 UTCJul 6, 20:10 UTC8h 40m
2026-07-05 OCN51 - Jul 5, 22:00 UTCJul 6, 04:55 UTC6h 55m
2026-07-05 OCN50 FRA → PHL Jul 5, 11:35 UTCJul 5, 20:05 UTC8h 30m
2026-07-03 OCN75 - Jul 3, 01:15 UTCJul 3, 07:05 UTC5h 50m
2026-07-02 OCN74 - Jul 2, 16:10 UTCJul 2, 23:05 UTC6h 55m
2026-07-01 OCN51 - Jul 1, 22:10 UTCJul 2, 05:15 UTC7h 5m
2026-07-01 OCN50 FRA → PHL Jul 1, 11:40 UTCJul 1, 20:10 UTC8h 30m
2026-06-30 OCN51 - Jun 30, 22:05 UTCJul 1, 05:10 UTC7h 5m
2026-06-30 OCN50 FRA → PHL Jun 30, 11:45 UTCJun 30, 19:45 UTC8h 0m
2026-06-29 OCN51 - Jun 29, 22:00 UTCJun 30, 04:55 UTC6h 56m
2026-06-29 OCN50 FRA → PHL Jun 29, 12:00 UTCJun 29, 20:04 UTC8h 5m
2026-06-28 OCN69 MCO → FRA Jun 28, 02:20 UTCJun 28, 10:39 UTC8h 20m
2026-06-27 OCN68 FRA → MCO Jun 27, 12:09 UTCJun 27, 21:55 UTC9h 45m
2026-06-27 OCN69 MCO → FRA Jun 27, 00:34 UTCJun 27, 09:04 UTC8h 30m
2026-06-26 OCN68 FRA → MCO Jun 26, 12:29 UTCJun 26, 22:19 UTC9h 50m
2026-06-25 OCN3 - Jun 25, 14:20 UTCJun 26, 09:20 UTC19h 0m
2026-06-25 OCN2 FRA → FRA Jun 25, 12:35 UTCJun 26, 09:20 UTC20h 45m
2026-06-24 OCN659 - Jun 24, 22:10 UTCJun 25, 07:05 UTC8h 55m
2026-06-24 OCN642 FRA → TPA Jun 24, 10:14 UTCJun 24, 20:09 UTC9h 55m
2026-06-24 OCN133 - Jun 24, 01:09 UTCJun 24, 03:10 UTC2h 0m
2026-06-22 OCN132W FRA → WDH Jun 22, 20:19 UTCJun 22, 22:30 UTC2h 10m
2026-06-22 OCN131 MBA → FRA Jun 22, 13:49 UTCJun 22, 16:45 UTC2h 55m
2026-06-21 OCN131 MBA → FRA Jun 21, 20:24 UTCJun 22, 16:45 UTC20h 20m
2026-06-21 OCN131 MBA → FRA Jun 21, 19:29 UTCJun 22, 16:45 UTC21h 15m
2026-06-21 OCN69 MCO → FRA Jun 21, 00:29 UTCJun 21, 08:44 UTC8h 15m
2026-06-20 OCN68 - Jun 20, 18:49 UTCJun 20, 22:14 UTC3h 25m
2026-06-20 OCN68 - Jun 20, 12:14 UTCJun 20, 18:45 UTC6h 30m
2026-06-19 OCN75 - Jun 19, 22:49 UTCJun 20, 04:44 UTC5h 55m
2026-06-19 OCN74 - Jun 19, 13:59 UTCJun 19, 20:34 UTC6h 35m
2026-06-16 OCN133 - Jun 16, 19:00 UTCJun 17, 03:20 UTC8h 21m
2026-06-15 OCN132W FRA → WDH Jun 15, 20:30 UTCJun 16, 19:40 UTC23h 10m
2026-06-14 OCN131 MBA → FRA Jun 14, 20:20 UTCJun 15, 16:09 UTC19h 49m
2026-06-14 OCN131 MBA → FRA Jun 14, 18:50 UTCJun 15, 16:09 UTC21h 19m
2026-06-13 OCN75 - Jun 13, 23:00 UTCJun 14, 04:50 UTC5h 50m
2026-06-13 OCN74 FRA → YHZ Jun 13, 14:05 UTCJun 13, 20:35 UTC6h 30m
2026-06-13 OCN133 - Jun 13, 01:15 UTCJun 13, 03:15 UTC2h 0m
2026-06-11 OCN132W FRA → WDH Jun 11, 20:25 UTCJun 11, 22:00 UTC1h 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-AXGE page for operator, model, and routing details .

Mode-S 3C15C1 frequently asked

What is Mode-S code 3C15C1?
3C15C1 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AXGE.
Where is Mode-S 3C15C1 registered?
Mode-S code 3C15C1 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C15C1 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C15C1, octal 17012701, decimal 3,937,729.
What flights does 3C15C1 operate?
Mode-S 3C15C1 has broadcast 20 distinct callsigns, including OCN642, OCN659, OCN51, OCN50, OCN131.