| Date | IP Address |
| 2021-06-01 | 199.16.172.36 (ClassC) |
| 2026-02-10 | 216.108.232.100 (ClassC) |
| Date | Domain | IP |
| mx20.clarkbrothersllc.com | 2026-02-09 | 216.108.232.100 |
| www1.clarkbrothersllc.com | 2026-02-09 | 216.108.232.100 |
| mail2.clarkbrothersllc.com | 2026-02-09 | 216.108.232.100 |
| mail6.clarkbrothersllc.com | 2026-02-09 | 216.108.232.100 |
| mx7.clarkbrothersllc.com | 2026-02-09 | 216.108.232.100 |
| newmail.clarkbrothersllc.com | 2026-02-09 | 216.108.232.100 |
| antispam.clarkbrothersllc.com | 2025-11-22 | 216.108.232.100 |
| smtp.clarkbrothersllc.com | 2026-02-09 | 216.108.232.100 |
| authsmtp.clarkbrothersllc.com | 2026-01-30 | 216.108.232.100 |
| sniper.clarkbrothersllc.com | 2026-02-10 | 216.108.232.100 |
| server.clarkbrothersllc.com | 2026-01-28 | 216.108.232.100 |
| hermes.clarkbrothersllc.com | 2026-02-09 | 216.108.232.100 |
| relay.clarkbrothersllc.com | 2025-11-22 | 216.108.232.100 |