216.51.0.0/16
76 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 216.51.33.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.34.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.37.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.38.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.43.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.44.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.95.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.96.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.128.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.130.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.131.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.134.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.135.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.136.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.138.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.139.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.140.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.146.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.147.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.150.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.151.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.157.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.158.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.160.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.161.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.166.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.167.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.168.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.169.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.173.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.174.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.175.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.176.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.177.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.181.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.184.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.185.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.186.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.188.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.190.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.191.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.192.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.193.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.199.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.200.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.201.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.202.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.203.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.204.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.214.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.217.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.218.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.220.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.221.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.222.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.223.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.225.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.226.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.227.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.228.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.230.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.231.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.232.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.233.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.234.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.235.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.236.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.238.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.239.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.241.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.244.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.246.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.249.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.250.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.251.0/24 | United States (100%) | 1 | 1 | 1 |
| 216.51.252.0/24 | United States (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
216.51.33.0 – 216.51.33.255 | AS55018 | Prime Holdings Insurance Services Inc | US |
216.51.34.0 – 216.51.36.255 | AS2828 | Verizon Business | US |
216.51.37.0 – 216.51.37.255 | AS20286 | American College of Cardiology | US |
216.51.38.0 – 216.51.42.255 | AS2828 | Verizon Business | US |
216.51.43.0 – 216.51.43.255 | AS17150 | America First Credit Union | US |
216.51.44.0 – 216.51.94.255 | AS2828 | Verizon Business | US |
216.51.95.0 – 216.51.95.255 | AS12254 | Instructure Inc | US |
216.51.96.0 – 216.51.127.255 | AS2828 | Verizon Business | US |
216.51.128.0 – 216.51.129.255 | AS5056 | Aureon Network Services | US |
216.51.130.0 – 216.51.130.255 | AS396443 | Western Iowa Networks | US |
216.51.131.0 – 216.51.133.255 | AS5056 | Aureon Network Services | US |
216.51.134.0 – 216.51.134.255 | AS54374 | WMTel | US |
216.51.135.0 – 216.51.135.255 | AS62886 | OMNITEL COMMUNICATIONS | US |
216.51.136.0 – 216.51.137.255 | AS5056 | Aureon Network Services | US |
216.51.138.0 – 216.51.138.255 | AS46892 | Winnebago Cooperative Telecom Association | US |
61 more ranges in this block.