AS30387 National Institutes of Health
General Info - AS30387
4,096
9,223,372,036,854,775,808
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 156.40.53.0/24 | 256 | |
| 156.40.98.0/23 | 512 | |
| 165.112.32.0/23 | 512 | |
| 165.112.124.0/23 | 512 | |
| 165.112.127.0/24 | 256 | |
| 165.112.194.0/23 | 512 | |
| 165.112.200.0/22 | 1,024 | |
| 165.112.252.0/23 | 512 |
| Netblock | Number of IPs | |
|---|---|---|
| 2607:f220:402::/48 | 1,208,925,819,614,629,174,706,176 |
Downstreams
There are no downstreams for this ASN.
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.
