Summary
| ASN | AS19108 Optimum |
| BGP | 173.81.0.0/16 |
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 2008-11-11 |
| Last Updated | 2026-08-26 |
| 173.81.0.0/24 | N/A | 0 | 1 | 1 |
| 173.81.128.0/24 | N/A | 0 | 1 | 1 |
| 173.81.223.0/24 | N/A | 0 | 1 | 1 |
| ASN | AS19108 Optimum |
| BGP | 173.81.0.0/16 |
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 2008-11-11 |
| Last Updated | 2026-08-26 |
| 173.81.0.0/24 | N/A | 0 | 1 | 1 |
| 173.81.128.0/24 | N/A | 0 | 1 | 1 |
| 173.81.223.0/24 | N/A | 0 | 1 | 1 |