IPv4 prefix
128.57.0.0/16
- IP Prefix (CIDR)
- 128.57.0.0/16
- Subnet Mask
- 255.255.0.0
- Address Count
- 65,536
- Owner
- SRI International
- Handle
- SRIINT-Z
- Address
- 333 Ravenswood Avenue Menlo Park CA 94025 United States
- Registry
- ARIN
- Registered Prefix
- 128.57.0.0/16 (128.57.0.0 - 128.57.255.255)
| Announced Prefix | Relationship | Origin ASN | Description | Country | First Address | Last Address |
|---|---|---|---|---|---|---|
| 128.57.0.0/20 | More specific | AS4922 | Shenandoah Cable Television LLC |
United States of America (US)
|
128.57.0.0 | 128.57.15.255 |
| 128.57.47.0/24 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.47.0 | 128.57.47.255 |
| 128.57.50.0/24 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.50.0 | 128.57.50.255 |
| 128.57.60.0/23 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.60.0 | 128.57.61.255 |
| 128.57.62.0/24 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.62.0 | 128.57.62.255 |
| 128.57.89.0/24 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.89.0 | 128.57.89.255 |
| 128.57.92.0/23 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.92.0 | 128.57.93.255 |
| 128.57.128.0/23 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.128.0 | 128.57.129.255 |
| 128.57.136.0/23 | More specific | AS53434 | SRI International |
United States of America (US)
|
128.57.136.0 | 128.57.137.255 |
| 128.57.186.0/24 | More specific | AS24155 | Asia Pacific Broadband Wireless Communications Inc |
Taiwan (Province of China) (TW)
|
128.57.186.0 | 128.57.186.255 |
| 128.57.208.0/23 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.208.0 | 128.57.209.255 |
| 128.57.216.0/23 | More specific | AS264 | SRI International |
United States of America (US)
|
128.57.216.0 | 128.57.217.255 |