| Date | IP Address |
| 2015-01-20 | 151.80.68.180 (ClassC) |
| 2024-06-30 | 172.64.145.192 (ClassC) |
| 2024-07-17 | 104.18.42.64 (ClassC) |
| 2024-08-03 | 104.18.7.205 (ClassC) |
| 2025-03-05 | 172.64.153.68 (ClassC) |
| 2026-02-06 | 104.18.34.188 (ClassC) |
| Date | Domain | IP |
| ds004603.3cx.de | 2025-09-01 | 20.113.90.161 |
| dm8.3cx.de | 2025-05-24 | 5.75.170.213 |
| balance.3cx.de | 2025-05-15 | 23.88.118.61 |
| eiba-online.3cx.de | 2025-05-14 | 80.153.89.175 |
| aquaphone.3cx.de | 2025-11-06 | 20.79.216.209 |
| schuette.3cx.de | 2025-09-14 | 185.250.88.15 |
| khp-marketing.3cx.de | 2025-08-06 | 40.113.106.195 |
| srg.3cx.de | 2025-11-06 | 23.88.100.92 |
| derewagmbh.3cx.de | 2025-09-01 | 104.40.128.204 |
| messe-loerrach.3cx.de | 2026-01-19 | 167.235.156.125 |
| magni.3cx.de | 2025-11-06 | 4.185.105.163 |
| lendjel.3cx.de | 2025-11-02 | 20.113.84.242 |
| dkm.3cx.de | 2025-05-24 | 167.235.128.155 |
| drvonplehn.3cx.de | 2025-11-05 | 5.75.155.43 |
| apicon.3cx.de | 2025-09-22 | 23.97.197.87 |
| stricker-solution.3cx.de | 2025-11-12 | 3.121.149.81 |
| traco.3cx.de | 2025-09-07 | 213.61.54.219 |
| theatiner.3cx.de | 2025-10-19 | 161.35.203.119 |
| bigwavepr.3cx.de | 2025-05-11 | 40.113.4.232 |
| prisma-ds.3cx.de | 2025-09-06 | 78.47.52.124 |
| futures-services.3cx.de | 2025-09-09 | 20.113.69.230 |
| primeit.3cx.de | 2025-09-06 | 116.202.80.85 |
| sipgwit.3cx.de | 2025-05-23 | 5.75.230.61 |
| ipimport.3cx.de | 2024-11-04 | 217.79.188.71 |
| 21ittest.3cx.de | 2025-05-26 | 3.121.136.115 |
| psw.3cx.de | 2025-05-14 | 40.68.127.22 |
| www.3cx.de | 2024-06-30 | 172.64.145.192 |
| bytecity.3cx.de | 2025-10-17 | 5.9.197.235 |