| Date | IP Address |
| 2021-03-25 | 35.163.190.86 (ClassC) |
| 2021-03-25 | 35.164.158.37 (ClassC) |
| 2024-07-26 | 35.164.114.125 (ClassC) |
| 2024-08-25 | 52.41.180.168 (ClassC) |
| 2024-12-28 | 54.200.247.224 (ClassC) |
| Date | Domain | IP |
| prod-hound.prod.a.bill.com | 2024-09-13 | 99.84.66.13 |
| api.perf.a.bill.com | 2024-09-28 | 99.84.66.60 |
| www-ctu.cs.a.bill.com | 2024-07-26 | 35.164.114.125 |
| dev.a.bill.com | 2024-12-19 | 8.8.8.8 |
| app-example.dev.a.bill.com | 2024-08-24 | 18.161.6.104 |
| auth.dev.a.bill.com | 2024-09-21 | 18.161.6.114 |
| api.dev.a.bill.com | 2024-07-30 | 18.161.6.84 |