AS3527 National Institutes of Health
General Info - AS3527
328,960
35.06 Septillion
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 128.231.0.0/23 | 128.231.0.0 | 128.231.1.255 | 512 | |
| 128.231.2.0/24 | 128.231.2.0 | 128.231.2.255 | 256 | |
| 128.231.3.0/24 | 128.231.3.0 | 128.231.3.255 | 256 | |
| 128.231.4.0/22 | 128.231.4.0 | 128.231.7.255 | 1,024 | |
| 128.231.8.0/21 | 128.231.8.0 | 128.231.15.255 | 2,048 | |
| 128.231.16.0/20 | 128.231.16.0 | 128.231.31.255 | 4,096 | |
| 128.231.32.0/19 | 128.231.32.0 | 128.231.63.255 | 8,192 | |
| 128.231.64.0/18 | 128.231.64.0 | 128.231.127.255 | 16,384 | |
| 128.231.128.0/18 | 128.231.128.0 | 128.231.191.255 | 16,384 | |
| 128.231.192.0/19 | 128.231.192.0 | 128.231.223.255 | 8,192 | |
| 128.231.224.0/20 | 128.231.224.0 | 128.231.239.255 | 4,096 | |
| 128.231.240.0/22 | 128.231.240.0 | 128.231.243.255 | 1,024 | |
| 128.231.244.0/24 | 128.231.244.0 | 128.231.244.255 | 256 | |
| 128.231.245.0/24 | 128.231.245.0 | 128.231.245.255 | 256 | |
| 128.231.246.0/23 | 128.231.246.0 | 128.231.247.255 | 512 | |
| 128.231.248.0/21 | 128.231.248.0 | 128.231.255.255 | 2,048 | |
| 137.187.0.0/16 | 137.187.0.0 | 137.187.255.255 | 65,536 | |
| 156.40.0.0/19 | 156.40.0.0 | 156.40.31.255 | 8,192 | |
| 156.40.32.0/20 | 156.40.32.0 | 156.40.47.255 | 4,096 | |
| 156.40.48.0/22 | 156.40.48.0 | 156.40.51.255 | 1,024 | |
| 156.40.52.0/24 | 156.40.52.0 | 156.40.52.255 | 256 | |
| 156.40.54.0/23 | 156.40.54.0 | 156.40.55.255 | 512 | |
| 156.40.56.0/21 | 156.40.56.0 | 156.40.63.255 | 2,048 | |
| 156.40.64.0/20 | 156.40.64.0 | 156.40.79.255 | 4,096 | |
| 156.40.80.0/21 | 156.40.80.0 | 156.40.87.255 | 2,048 | |
| 156.40.88.0/22 | 156.40.88.0 | 156.40.91.255 | 1,024 | |
| 156.40.92.0/24 | 156.40.92.0 | 156.40.92.255 | 256 | |
| 156.40.96.0/23 | 156.40.96.0 | 156.40.97.255 | 512 | |
| 156.40.100.0/22 | 156.40.100.0 | 156.40.103.255 | 1,024 | |
| 156.40.104.0/21 | 156.40.104.0 | 156.40.111.255 | 2,048 | |
| 156.40.112.0/20 | 156.40.112.0 | 156.40.127.255 | 4,096 | |
| 156.40.128.0/18 | 156.40.128.0 | 156.40.191.255 | 16,384 | |
| 156.40.192.0/22 | 156.40.192.0 | 156.40.195.255 | 1,024 | |
| 156.40.196.0/24 | 156.40.196.0 | 156.40.196.255 | 256 | |
| 156.40.198.0/23 | 156.40.198.0 | 156.40.199.255 | 512 | |
| 156.40.200.0/21 | 156.40.200.0 | 156.40.207.255 | 2,048 | |
| 156.40.208.0/20 | 156.40.208.0 | 156.40.223.255 | 4,096 | |
| 156.40.224.0/20 | 156.40.224.0 | 156.40.239.255 | 4,096 | |
| 156.40.240.0/22 | 156.40.240.0 | 156.40.243.255 | 1,024 | |
| 156.40.244.0/23 | 156.40.244.0 | 156.40.245.255 | 512 | |
| 156.40.247.0/24 | 156.40.247.0 | 156.40.247.255 | 256 | |
| 156.40.248.0/21 | 156.40.248.0 | 156.40.255.255 | 2,048 | |
| 157.98.0.0/16 | 157.98.0.0 | 157.98.255.255 | 65,536 | |
| 162.99.224.0/19 | 162.99.224.0 | 162.99.255.255 | 8,192 | |
| 165.112.0.0/22 | 165.112.0.0 | 165.112.3.255 | 1,024 | |
| 165.112.4.0/23 | 165.112.4.0 | 165.112.5.255 | 512 | |
| 165.112.12.0/22 | 165.112.12.0 | 165.112.15.255 | 1,024 | |
| 165.112.16.0/20 | 165.112.16.0 | 165.112.31.255 | 4,096 | |
| 165.112.36.0/22 | 165.112.36.0 | 165.112.39.255 | 1,024 | |
| 165.112.40.0/21 | 165.112.40.0 | 165.112.47.255 | 2,048 | |
| 165.112.48.0/20 | 165.112.48.0 | 165.112.63.255 | 4,096 | |
| 165.112.64.0/19 | 165.112.64.0 | 165.112.95.255 | 8,192 | |
| 165.112.96.0/20 | 165.112.96.0 | 165.112.111.255 | 4,096 | |
| 165.112.112.0/21 | 165.112.112.0 | 165.112.119.255 | 2,048 | |
| 165.112.120.0/22 | 165.112.120.0 | 165.112.123.255 | 1,024 | |
| 165.112.126.0/24 | 165.112.126.0 | 165.112.126.255 | 256 | |
| 165.112.128.0/21 | 165.112.128.0 | 165.112.135.255 | 2,048 | |
| 165.112.136.0/22 | 165.112.136.0 | 165.112.139.255 | 1,024 | |
| 165.112.141.0/24 | 165.112.141.0 | 165.112.141.255 | 256 | |
| 165.112.142.0/23 | 165.112.142.0 | 165.112.143.255 | 512 | |
| 165.112.144.0/20 | 165.112.144.0 | 165.112.159.255 | 4,096 | |
| 165.112.160.0/19 | 165.112.160.0 | 165.112.191.255 | 8,192 | |
| 165.112.192.0/23 | 165.112.192.0 | 165.112.193.255 | 512 | |
| 165.112.196.0/22 | 165.112.196.0 | 165.112.199.255 | 1,024 | |
| 165.112.204.0/22 | 165.112.204.0 | 165.112.207.255 | 1,024 | |
| 165.112.208.0/20 | 165.112.208.0 | 165.112.223.255 | 4,096 | |
| 165.112.224.0/20 | 165.112.224.0 | 165.112.239.255 | 4,096 | |
| 165.112.240.0/21 | 165.112.240.0 | 165.112.247.255 | 2,048 | |
| 165.112.248.0/22 | 165.112.248.0 | 165.112.251.255 | 1,024 | |
| 165.112.254.0/23 | 165.112.254.0 | 165.112.255.255 | 512 | |
| 192.231.145.0/24 | 192.231.145.0 | 192.231.145.255 | 256 | |
| 192.231.146.0/24 | 192.231.146.0 | 192.231.146.255 | 256 | |
| 192.231.147.0/24 | 192.231.147.0 | 192.231.147.255 | 256 |
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2607:f220:400::/44 | 2607:f220:400:: | 2607:f220:40f:ffff:ffff:ffff:ffff:ffff | 19.34 Septillion | |
| 2607:f220:410::/48 | 2607:f220:410:: | 2607:f220:410:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2607:f220:412::/47 | 2607:f220:412:: | 2607:f220:413:ffff:ffff:ffff:ffff:ffff | 2.42 Septillion | |
| 2607:f220:414::/46 | 2607:f220:414:: | 2607:f220:417:ffff:ffff:ffff:ffff:ffff | 4.84 Septillion | |
| 2607:f220:418::/46 | 2607:f220:418:: | 2607:f220:41b:ffff:ffff:ffff:ffff:ffff | 4.84 Septillion | |
| 2607:f220:41c::/47 | 2607:f220:41c:: | 2607:f220:41d:ffff:ffff:ffff:ffff:ffff | 2.42 Septillion |
Downstreams
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
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