sensors Mode-S transponder
3C656F
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-AIKO · AIRBUS A-330-300
- Hex
- 3C656F
- Octal
- 17062557
- Decimal
- 3,958,127
- Country
- DE
- Tail
- D-AIKO
- Type
- A333
- Flights observed
- 88
- Distinct callsigns
- 20
- Country
- DE
- Last broadcast
- 21h ago
Last known position
Country allocation
The ICAO 24-bit address 3C656F 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 |
|---|---|---|---|
| OCN11 | O Air | 11 | 2026-05-11 |
| OCN12 | O Air | 9 | 2026-05-12 |
| OCN133 | O Air | 7 | 2026-05-09 |
| OCN77 | O Air | 5 | 2026-05-10 |
| OCN76 | O Air | 5 | 2026-05-10 |
| OCN132W | O Air | 5 | 2026-05-08 |
| OCN142 | O Air | 4 | 2026-05-27 |
| OCN81 | O Air | 3 | 2026-05-27 |
| OCN80 | O Air | 3 | 2026-05-26 |
| OCN75 | O Air | 3 | 2026-05-05 |
| OCN74 | O Air | 3 | 2026-05-05 |
| OCN156 | O Air | 3 | 2026-04-21 |
| OCN143Y | - | 3 | 2026-05-28 |
| OCN135K | O Air | 3 | 2026-05-08 |
| OCN69 | O Air | 2 | 2026-04-28 |
| OCN68 | O Air | 2 | 2026-04-27 |
| OCN659 | O Air | 2 | 2026-05-15 |
| OCN642 | O Air | 2 | 2026-05-15 |
| OCN2101 | O Air | 2 | 2026-04-18 |
| OCN2100 | O Air | 2 | 2026-04-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | OCN4081 | MUC → FRA | May 29, 07:15 UTC | May 29, 08:00 UTC | 45m |
| 2026-05-28 | OCN143Y | - | May 28, 21:35 UTC | May 29, 03:50 UTC | 6h 15m |
| 2026-05-27 | OCN142 | FRA → WDH | May 27, 19:50 UTC | May 27, 21:20 UTC | 1h 30m |
| 2026-05-27 | OCN81 | MCO → MUC | May 27, 02:04 UTC | May 27, 11:35 UTC | 9h 31m |
| 2026-05-26 | OCN80 | MUC → MCO | May 26, 13:19 UTC | May 26, 23:25 UTC | 10h 5m |
| 2026-05-26 | OCN143Y | - | May 26, 02:15 UTC | May 26, 04:04 UTC | 1h 50m |
| 2026-05-24 | OCN142 | FRA → WDH | May 24, 20:10 UTC | May 24, 21:45 UTC | 1h 35m |
| 2026-05-23 | OCN81 | MCO → MUC | May 23, 02:35 UTC | May 23, 11:15 UTC | 8h 40m |
| 2026-05-22 | OCN80 | MUC → MCO | May 22, 13:40 UTC | May 22, 23:45 UTC | 10h 5m |
| 2026-05-21 | OCN143Y | - | May 21, 21:55 UTC | May 22, 04:15 UTC | 6h 20m |
| 2026-05-21 | OCN142 | FRA → WDH | May 21, 02:00 UTC | May 21, 21:55 UTC | 19h 55m |
| 2026-05-20 | OCN142 | FRA → WDH | May 20, 20:05 UTC | May 21, 02:15 UTC | 6h 10m |
| 2026-05-19 | OCN91 | YYC → MUC | May 19, 01:30 UTC | May 19, 10:45 UTC | 9h 15m |
| 2026-05-18 | OCN90 | MUC → YYC | May 18, 14:00 UTC | May 18, 23:05 UTC | 9h 4m |
| 2026-05-18 | OCN81 | MCO → MUC | May 18, 01:55 UTC | May 18, 10:50 UTC | 8h 55m |
| 2026-05-17 | OCN80 | MUC → MCO | May 17, 13:20 UTC | May 17, 23:20 UTC | 10h 0m |
| 2026-05-17 | OCN4080 | MUC → FRA | May 17, 09:55 UTC | May 17, 10:30 UTC | 35m |
| 2026-05-15 | OCN659 | TPA → FRA | May 15, 22:40 UTC | May 16, 07:05 UTC | 8h 26m |
| 2026-05-15 | OCN642 | FRA → TPA | May 15, 09:55 UTC | May 15, 19:50 UTC | 9h 54m |
| 2026-05-13 | OCN659 | TPA → FRA | May 13, 22:30 UTC | May 14, 07:20 UTC | 8h 50m |
| 2026-05-13 | OCN642 | FRA → TPA | May 13, 10:20 UTC | May 13, 20:25 UTC | 10h 5m |
| 2026-05-12 | OCN12 | LAS → FRA | May 12, 04:15 UTC | May 12, 14:30 UTC | 10h 15m |
| 2026-05-11 | OCN11 | CUN → FRA | May 11, 12:10 UTC | May 11, 22:35 UTC | 10h 25m |
| 2026-05-10 | OCN77 | YYC → FRA | May 10, 23:29 UTC | May 11, 08:15 UTC | 8h 45m |
| 2026-05-10 | OCN76 | FRA → YYC | May 10, 12:15 UTC | May 10, 21:44 UTC | 9h 30m |
| 2026-05-09 | OCN133 | WDH → FRA | May 9, 20:25 UTC | May 10, 03:10 UTC | 6h 45m |
| 2026-05-08 | OCN132W | FRA → WDH | May 8, 21:50 UTC | May 9, 20:40 UTC | 22h 50m |
| 2026-05-08 | OCN132W | FRA → WDH | May 8, 20:20 UTC | May 8, 22:00 UTC | 1h 40m |
| 2026-05-08 | OCN135K | MBA → FRA | May 8, 13:20 UTC | May 8, 17:25 UTC | 4h 5m |
| 2026-05-07 | OCN135K | MBA → FRA | May 7, 19:50 UTC | May 8, 17:25 UTC | 21h 35m |
| 2026-05-07 | OCN135K | MBA → FRA | May 7, 17:55 UTC | May 8, 17:25 UTC | 23h 30m |
| 2026-05-07 | OCN12 | LAS → FRA | May 7, 04:25 UTC | May 7, 14:55 UTC | 10h 30m |
| 2026-05-06 | OCN11 | CUN → FRA | May 6, 12:15 UTC | May 6, 22:50 UTC | 10h 34m |
| 2026-05-05 | OCN75 | YHZ → FRA | May 5, 22:35 UTC | May 6, 04:45 UTC | 6h 10m |
| 2026-05-05 | OCN74 | FRA → YHZ | May 5, 13:55 UTC | May 5, 20:10 UTC | 6h 15m |
| 2026-05-04 | OCN133 | WDH → FRA | May 4, 20:40 UTC | May 5, 03:25 UTC | 6h 45m |
| 2026-05-03 | OCN133 | WDH → FRA | May 3, 21:50 UTC | May 4, 21:15 UTC | 23h 26m |
| 2026-05-03 | OCN132W | FRA → WDH | May 3, 20:10 UTC | May 3, 21:54 UTC | 1h 45m |
| 2026-05-03 | OCN12 | LAS → FRA | May 3, 04:35 UTC | May 3, 14:50 UTC | 10h 15m |
| 2026-05-02 | OCN11 | CUN → FRA | May 2, 12:10 UTC | May 2, 23:15 UTC | 11h 5m |
| 2026-05-01 | OCN51 | YHZ → FRA | May 1, 22:15 UTC | May 2, 05:35 UTC | 7h 20m |
| 2026-05-01 | OCN50 | FRA → PHL | May 1, 11:40 UTC | May 1, 19:45 UTC | 8h 5m |
| 2026-04-30 | OCN133 | WDH → FRA | Apr 30, 19:10 UTC | May 1, 03:15 UTC | 8h 5m |
| 2026-04-29 | OCN133 | WDH → FRA | Apr 29, 22:00 UTC | Apr 30, 21:15 UTC | 23h 14m |
| 2026-04-29 | OCN132W | FRA → WDH | Apr 29, 20:20 UTC | Apr 30, 19:45 UTC | 23h 24m |
| 2026-04-28 | OCN75 | YHZ → FRA | Apr 28, 23:00 UTC | Apr 29, 05:15 UTC | 6h 15m |
| 2026-04-28 | OCN74 | FRA → YHZ | Apr 28, 14:00 UTC | Apr 28, 20:10 UTC | 6h 10m |
| 2026-04-28 | OCN69 | MCO → FRA | Apr 28, 00:35 UTC | Apr 28, 09:40 UTC | 9h 5m |
| 2026-04-27 | OCN68 | FRA → MCO | Apr 27, 12:15 UTC | Apr 27, 21:45 UTC | 9h 30m |
| 2026-04-27 | OCN69 | MCO → FRA | Apr 27, 00:40 UTC | Apr 27, 09:15 UTC | 8h 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-AIKO page for operator, model, and routing details .