| Date | IP Address |
| 2012-11-08 | 174.36.32.221 (ClassC) |
| 2012-12-29 | 50.23.224.106 (ClassC) |
| 2013-02-04 | 50.97.69.146 (ClassC) |
| 2013-11-10 | 198.37.144.99 (ClassC) |
| 2014-03-22 | 198.37.144.92 (ClassC) |
| 2015-02-11 | 198.37.144.88 (ClassC) |
| 2015-03-14 | 198.37.144.73 (ClassC) |
| 2024-01-09 | 54.188.148.71 (ClassC) |
| 2024-02-21 | 167.89.118.34 (ClassC) |
| 2025-01-14 | 52.40.152.246 (ClassC) |
| Date | Domain | IP |
| 415231.sendgrid.org | 2014-02-21 | 198.37.144.92 |
| 672742.sendgrid.org | 2014-03-07 | 198.37.144.92 |
| 771103.sendgrid.org | 2015-03-24 | 198.37.144.92 |
| 47906.sendgrid.org | 2014-03-07 | 198.37.144.92 |
| 526036.sendgrid.org | 2015-03-03 | 198.37.144.92 |
| 1384246.sendgrid.org | 2015-03-16 | 198.37.144.92 |
| 78156.sendgrid.org | 2014-02-18 | 198.37.144.92 |
| 15717.sendgrid.org | 2014-02-21 | 198.37.144.92 |
| 44829.sendgrid.org | 2015-03-31 | 198.37.144.92 |