137.31.0.0/16
66 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 137.31.0.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.4.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.12.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.14.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.16.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.17.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.20.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.24.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.28.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.32.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.38.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 137.31.39.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.40.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 137.31.43.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.44.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.45.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.49.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.50.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.51.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.52.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.54.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.58.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.60.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.62.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.63.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.64.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.90.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.92.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.94.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.96.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.97.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.99.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.102.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.112.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.114.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.118.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.119.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.130.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.132.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.133.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.134.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.136.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.140.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.141.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.152.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.154.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.156.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.157.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.159.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.160.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.164.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.165.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.167.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.169.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 137.31.170.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.172.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.176.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.188.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.192.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.194.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.195.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.198.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.209.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.210.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.218.0/24 | United States (100%) | 1 | 1 | 1 |
| 137.31.255.0/24 | United States (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
137.31.0.0 – 137.31.3.255 | AS62044 | Zscaler Switzerland GmbH | CH |
137.31.4.0 – 137.31.11.255 | AS22616 | ZSCALER INC. | US |
137.31.12.0 – 137.31.13.255 | AS62044 | Zscaler Switzerland GmbH | CH |
137.31.14.0 – 137.31.15.255 | AS22616 | ZSCALER INC. | US |
137.31.16.0 – 137.31.16.255 | AS62044 | Zscaler Switzerland GmbH | CH |
137.31.17.0 – 137.31.19.255 | AS53813 | ZSCALER INC. | US |
137.31.20.0 – 137.31.23.255 | AS62044 | Zscaler Switzerland GmbH | CH |
137.31.24.0 – 137.31.27.255 | AS22616 | ZSCALER INC. | US |
137.31.28.0 – 137.31.31.255 | AS22616 | ZSCALER INC. | US |
137.31.32.0 – 137.31.37.255 | AS62044 | Zscaler Switzerland GmbH | CH |
137.31.38.0 – 137.31.38.255 | AS15830 | Equinix (EMEA) Acquisition Enterprises B.V. | NL |
137.31.39.0 – 137.31.39.255 | AS22616 | ZSCALER INC. | US |
137.31.40.0 – 137.31.42.255 | AS15830 | Equinix (EMEA) Acquisition Enterprises B.V. | NL |
137.31.43.0 – 137.31.43.255 | AS62044 | Zscaler Switzerland GmbH | CH |
137.31.44.0 – 137.31.44.255 | AS53813 | ZSCALER INC. | US |
51 more ranges in this block.