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| CIDR range | Maintainer | Description | Source |
|---|---|---|---|
| 64.43.232.0/22 | MNT-USGCOR | USG corporation | ARIN |
| 64.43.232.0/23 | MAINT-AS1828 | PNAP-CHG USG-ROUTES | RADB |
| 64.43.234.0/23 | MAINT-AS1828 | PNAP-CHG USG-ROUTES | RADB |
| 64.202.126.0/24 | MAINT-SERVERCENTRAL | Proxy Registration for USG Corporation | ALTDB |
| 66.225.192.0/24 | MAINT-SERVERCENTRAL | Proxy Registration for USG Corporation | ALTDB |